PDF malware analysis — malicious · a247c88c061767fe

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: d30a4575908246ff70e4f32f2fde92d2 SHA-1: 17ddb6c1215f6820442008fcb330aac60804fafa SHA-256: a247c88c061767fef9514dbf21a2feb6d603bf93bd6f96a2cf356195e467c278

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1559.001 Component Object Model Hijacking

The PDF file contains embedded JavaScript that is triggered by the OpenAction feature. The critical CVE-2009-4324 heuristic indicates the use of the media.newPlayer object, a known method for exploiting this vulnerability. The embedded JavaScript, particularly the 'unescape()' call and the suspicious string concatenation, suggests an attempt to download and execute a second-stage payload. The file's metadata indicates it was authored using Scribus, but this is not directly indicative of 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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0001_000.js` `07d2e1705f8c5a63b6bb0d9463e9bfa1238e76aff1f701979c2dbfce340fe72d`	pdf-javascript-stream	PDF /JS object 1 at offset 0x16	36 bytes
`javascript_obj0013_001.js` `f3016f1eee5078884c931527d2e71651037b250cea88d437dd6f65f9e5f6ec0a`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3A8	2640 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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