PDF malware analysis — malicious · c8ee2f0a41b8c3c6

MALICIOUS

PDF

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

MD5: bc4ee437810c986cdd98499c569f05f9 SHA-1: 5d57b1fe3a76d4bf37efd2cadc9f026a317b46a3 SHA-256: c8ee2f0a41b8c3c6fb549cf7c2d7c8d9f4aa0cbd7cf534b13197304b68920332

158 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains embedded JavaScript triggered by an OpenAction, exploiting CVE-2009-4324 via the media.newPlayer object. The embedded JavaScript, named 'javascript_obj0013_001.js', is obfuscated and likely designed to download and execute a secondary payload. The use of unescape() further indicates malicious intent.

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` `dc19e995eb14a63a02c870a7ff797df830d8ce4b4d8587be4dd72e626f45d0b6`	pdf-javascript-stream	PDF /JS object 13 at offset 0x395	2617 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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