Malicious PDF — malware analysis report

Static analysis result for SHA-256 9564a2aa74cd72b1…

MALICIOUS

PDF

252.9 KB Created: 2009-07-08 10:53:46 +08:00 Authoring application: Acrobat Distiller 7.0 (Windows)
MD5: 322fcf1b134fef1bae52fbd80a373ede SHA-1: 4bcf637de6333781d467bdd3bc6cfc25ea2324f3 SHA-256: 9564a2aa74cd72b18bc6720c34108e75c285673d8e0a9411a84162fa2e5d7571
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 exploit. This exploit targets a JavaScript property alias normalized stage, indicating the script is designed to execute malicious code. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, although the specific URLs or actions are not directly extractable from the provided evidence. The heuristics strongly suggest exploitation of CVE-2009-4324.

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
2dd89717927062bd9373fc018f330935eaea35cb2db384fea7b52da5a09cc7eb
pdf-javascript-stream PDF /JS object 17 at offset 0x4DA 2765 bytes
js_property_alias_stage_000.js
63bf44208eb46d0d640e6188ae048db0fced0275624d7c79608d14da526a6eb6
deobfuscated-js JavaScript property alias normalized stage at offset 0x4DA 2519 bytes