PDF malware analysis — malicious · a0b94baab3fa3ad8

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: f8c7b1ace137948d2e032c78e1712367 SHA-1: 71e2542a2785115042f45add34f6099695b1711e SHA-256: a0b94baab3fa3ad8267d7c85d925174bdfb3f6bf929cfc1deed734e95a490b4c

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript and an OpenAction trigger, indicating an attempt to automatically execute code when the document is opened. The critical CVE-2009-4324 heuristic firing suggests exploitation of a vulnerability related to media playback. The embedded JavaScript, though obfuscated, likely facilitates the exploit. The document body contains script-like content and metadata suggesting it's designed to leverage this exploit.

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` `209382e94752546c7265af316693a60b1058e2594f99dc0b0dad4f1a4b0750a3`	pdf-javascript-stream	PDF /JS object 13 at offset 0x397	2649 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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