PDF malware analysis — malicious · 9f5f80a8b3d28474

MALICIOUS

PDF

14.3 KB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: ca28ea73e8f118b64652cbdb3d80aec3 SHA-1: a650f8936905926b8b87da1d9c6a297eefef8d9b SHA-256: 9f5f80a8b3d2847436f18c190b8d9f112af5633cfe5ff12289d63d90fca86ca4

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that utilizes an eval() call, a common technique for obfuscating malicious code. The ClamAV detection 'Pdf.Exploit.Agent-36118' strongly indicates a known exploit. The JavaScript appears to be designed to download and execute a secondary payload, as suggested by the heuristic firings related to JavaScript actions and eval() calls. The document body itself contains obfuscated JavaScript, further supporting this assessment.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36118 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36118
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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_obj0013_000.js` `423da9ca0e0484f89c8da836cd682c94b69a3934eb876e516c3e0a85d3fb4375`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13085 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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