PDF malware analysis — malicious · bda7207a8dd56308

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: fc82fd6a96eca50b8cbcba5c77400a34 SHA-1: 4b27f6fb3ed833bbb585cc8a0382a7e9d37aea85 SHA-256: bda7207a8dd563081d121bf83e9037e98efa6605c9aae482524636c630b385ae

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript and an OpenAction trigger, indicating an attempt to automatically execute code upon opening. The critical CVE-2009-4324 heuristic firing related to media.newPlayer strongly suggests exploitation of this specific vulnerability. The embedded JavaScript, though obfuscated, likely facilitates the exploit, aiming to download and execute a second-stage payload. The document body content appears to be malformed or obfuscated script fragments rather than user-readable 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` `e7d9ac3a527d12325d4f16cb2ed4ca5eea4fb4d2919bc1b7add3f996368b7552`	pdf-javascript-stream	PDF /JS object 13 at offset 0x390	2606 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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