PDF malware analysis — malicious · ba0317732f5c6104

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: d398e29e615999c2e62656a41fbd54f9 SHA-1: bcf53334747de28bbc6ba87889ec7ed658e23107 SHA-256: ba0317732f5c61045126f8f73d33f65fc90f43ed016bf00b1863dc0c9b875dc8

158 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File T1055.001 Process Injection: Native API

The PDF file contains embedded JavaScript that is triggered by the OpenAction feature, indicating an attempt to exploit vulnerabilities. Specifically, the 'media.newPlayer' call is a known indicator for CVE-2009-4324. The JavaScript is obfuscated, but the presence of exploit-related calls suggests it aims to download and execute a second-stage payload. The file was authored using Scribus, which is not inherently malicious but can be used to create malicious PDFs.

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` `68414520864f36377abe652b0ef22f66145cedff30990f817893fe3466ce3f2c`	pdf-javascript-stream	PDF /JS object 1 at offset 0x16	34 bytes
`javascript_obj0013_001.js` `575666562bb4ea5ca60e4491bc72db98229d94387b296ff649dbb06faee90537`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3A6	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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