PDF malware analysis — malicious · 3c6df5694cd80a34

MALICIOUS

PDF

14.5 KB

MD5: 893ac7639619ffaf2aa4f1df23758350 SHA-1: a1e69648ac0864f8d365be38c88579ae87c59ec6 SHA-256: 3c6df5694cd80a341e9ca81c496201bd653e81e788f3c33036eab163d7f3c7ac

178 Risk Score

Malware Insights

The file is a PDF document that contains embedded JavaScript. Heuristics indicate the use of unescape() and a specific exploit (CVE-2009-0927) targeting a vulnerability in PDF readers. The embedded JavaScript stream, identified as 'javascript_obj0007_000.js', is likely responsible for executing the exploit and delivering a malicious payload. The ClamAV detection further supports its malicious nature.

Heuristics 6

Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (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_obj0007_000.js` `e75d7a6834239487b453c86d109b67940903abaa26957d0662a5e41c15f5ad82`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1DB	6534 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 2 long base64-like blob(s).

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