PDF malware analysis — malicious · a0c03f764d46e36f

MALICIOUS

PDF

3.6 KB

MD5: 1d81523579edc5e7022fa8a0eb246832 SHA-1: fd0d6460bfb790569f3dd822db3b603da19a33dc SHA-256: a0c03f764d46e36ff1a5987d7d2c658505c1005d0aa67e935c95dc3268b7d4f9

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2009-4324, indicating an exploit attempt. The presence of JavaScript and the specific CVE exploit suggest the file's primary purpose is to compromise the user's system by executing arbitrary code, likely to download and run a secondary payload. The obfuscated nature of the JavaScript and the ClamAV detection further support its 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. (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` `b96c0c2a16a5f3c0d167ff2ee4c9a962375f6e3537b511c878d42e98cea4f4dc`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A1	2555 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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