PDF malware analysis — malicious · 3b4d319cbef7426e

MALICIOUS

PDF

6.4 KB

MD5: d38a6d7801d9eb5c7f3ddfc96200e80d SHA-1: 4682a4e42c9a1315768c69d6b5799a2c5a68fa94 SHA-256: 3b4d319cbef7426efcec067ef4612f9863c4cc834a5a4a839f7e61bfc8a5c4e6

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded JavaScript and triggers a critical vulnerability (CVE-2009-0927) related to Collab.getIcon. The presence of JavaScript and the specific exploit indicate an attempt to execute arbitrary code. The ClamAV detection further supports its malicious nature. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload.

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` `ef74620994ff5bd264bd5ede0a1a7e62684a5c042bdc6166d6ae69e43fea06c2`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A3	5392 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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