Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc1a6878a70d7ee3…

MALICIOUS

PDF

225.3 KB Created: 2009-07-08 10:53:46 +08:00 Authoring application: Acrobat Distiller 7.0 (Windows)
MD5: 3fab56db49d649457c5604b24b591c1d SHA-1: 1540650711fe1723afbea6f661206e442af5f998 SHA-256: cc1a6878a70d7ee31d87e57831138310aa1be13774ebada56126150da6e35271
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF document contains embedded JavaScript, which is triggered by the CVE-2009-4324 heuristic. This exploit targets the media.newPlayer functionality within PDF viewers. The embedded JavaScript is likely used to download and execute a second-stage payload, although the specific details are obfuscated. The presence of this exploit and JavaScript points to a malicious PDF designed for exploitation.

Heuristics 4

  • 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)
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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.
  • 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://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/pdfx/1.3/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0017_000.js
fec02ac84241a606ddee84042d46f183d5a3e8bc4f3fce27d6a568b328437545		 pdf-javascript-stream PDF /JS object 17 at offset 0x4DD 2944 bytes
js_property_alias_stage_000.js
0a0704461fa8203c43232880ecb4cca3a34501dc5b509982d7b0a154ee6ce5a0		 deobfuscated-js JavaScript hex-escape property alias normalized stage at offset 0x4DD 2821 bytes

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