PDF malware analysis — malicious · 3f93c8df7f1613c2

MALICIOUS

PDF

3.4 KB

MD5: 7fad1b7852f1909338f59b1b762d3088 SHA-1: 2a1561dc20fee2991d3a9ceeeee5fb2477d280e3 SHA-256: 3f93c8df7f1613c2252a6af79f07c217fb339203fae52c8050b148b34dfc7cca

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

This PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE_2009_4324 heuristic firing suggests exploitation of a media player vulnerability within Adobe Reader. The embedded JavaScript, identified as javascript_obj0006_000.js, is likely responsible for executing the exploit. The PDF_UNESCAPE heuristic further points to obfuscation techniques used within the script. The file is classified as malicious due to these exploit and obfuscation indicators.

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. (matched in decompressed stream)
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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_obj0006_000.js` `fc4bead92feea6fd36cdc846ae517bb72594bbb5e3b264f4aa9b15056c97a1d4`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A1	2351 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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