PDF malware analysis — malicious · 440744e50588bbf2

MALICIOUS

PDF

6.8 KB

MD5: 3b251b6a8b75ddbcd3186f5fcc6101f9 SHA-1: ea5a446730eb0090d45241cdfd13a6a78a80325d SHA-256: 440744e50588bbf24f6203d3be45ab36423b1dd989fb31ed6897f089d2fef0ab

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The PDF file contains embedded JavaScript and triggers a critical vulnerability (CVE-2009-0927) related to Collab.getIcon. The presence of JavaScript and the exploit indicate an attempt to compromise the user's system. The obfuscated nature of the JavaScript, as noted by ClamAV's detection (Heuristics.PDF.ObfuscatedNameObject), suggests a downloader or exploit execution routine.

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_obj0006_000.js` `b8aceb19b202d99f046eb8250d271754affb116131c5be097ebbb2974cd0ad4c`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A5	5950 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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