PDF malware analysis — malicious · aeac6aa1cfa6e240

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: 1e30b70fb817a1ff809bba8500e7cb54 SHA-1: dad1634c1e0db7ee59168cb8f80d99e14ee972b3 SHA-256: aeac6aa1cfa6e2400a0630bd48745d96300a8bd3d9805b10748fd38bb4b73e8c

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that is triggered by the OpenAction. The critical CVE-2009-4324 heuristic indicates the use of the media.newPlayer object, a known method for exploiting vulnerabilities in older PDF readers. The JavaScript is obfuscated, but the presence of the unescape function and the suspicious extracted artifact 'javascript_obj0013_001.js' strongly suggest it's designed to download and execute a second-stage payload.

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` `d5a06994e63b52a853850466d8fb23009111e82e14a96f75d0a29f63b9d26e58`	pdf-javascript-stream	PDF /JS object 13 at offset 0x39D	2643 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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