PDF malware analysis — malicious · 29481030ee40cada

MALICIOUS

PDF

4.1 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 5898a884f45a5fa19c4ce4c88baeead6 SHA-1: b1bd3f6561e330a31b3509c7e5636653bea76f6d SHA-256: 29481030ee40cada0cbdd8905a0f4eb86cc7f2d960b85634f458326ba7c75b24

158 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File T1059.007 Scripting: JavaScript

The PDF document contains embedded JavaScript triggered by an OpenAction, exploiting CVE-2009-4324 via the media.newPlayer method. The JavaScript is obfuscated and uses unescape() to deobfuscate its payload. The primary attack vector is the exploitation of this known vulnerability within the PDF viewer. The document body itself contains script-like content that appears to be part of the obfuscation or payload. No specific family could be identified.

Heuristics 6

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.
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `00ef4c8df11e31693e64045400a58c036d4a58dc85932dad26b7fa84d4f29e19`	pdf-javascript-stream	PDF /JS object 13 at offset 0x399	2639 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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