PDF malware analysis — malicious · 89363e5923dcf45f

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: d03137255908cd7a74556e0fb033ecf7 SHA-1: 7e11ea1d6de3c3dcf842287cd1faef32a405d69b SHA-256: 89363e5923dcf45f07720e14fe96106a9356dbf79d1160a8a5422d7e5714e900

158 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious JavaScript

The PDF document contains embedded JavaScript triggered by an OpenAction, exploiting CVE-2009-4324 via the media.newPlayer method. The embedded JavaScript is obfuscated and likely responsible for downloading and executing a second-stage payload. The document body itself contains script-like content and metadata that does not appear to be user-facing text.

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` `11937ea410b0eb84f8b97356725154d6f3bb22071f98bea07c984fa5da98f8a2`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3A1	2607 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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