PDF malware analysis — malicious · 7ffe2db6b0ce0a02

MALICIOUS

PDF

7.2 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: a7ef48c651c0b1a50833e6594d1f5161 SHA-1: 6626c742d7ba5cc284b6f3cef29c7459f2ffb95f SHA-256: 7ffe2db6b0ce0a020f4c82060b6bd06d4f8f64f5c24e0ab7b71a2f448260d513

208 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

This PDF file was flagged as malicious by ClamAV and a machine learning classifier. It contains embedded JavaScript with multiple eval() calls, indicating obfuscated code execution. The script likely downloads and executes a second-stage payload, as suggested by the ML classifier's high confidence and the presence of a suspicious JavaScript stream. The specific exploit or payload is not fully discernible due to obfuscation.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

ClamAV: Pdf.Exploit.Agent-35587 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35587
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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_001.js` `588de1d523e2673e5d9f24da92fb55510afa1c3bf4bced5d8b2cbf2c1925aa02`	pdf-javascript-stream	PDF /JS object 13 at offset 0x38D	5807 bytes
Detection ClamAV: Pdf.Exploit.Agent-35587 Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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