PDF malware analysis — malicious · 42c6d065eab73fda

MALICIOUS

PDF

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

MD5: 0eefb941960bb0088ea550debc3c88d1 SHA-1: 3f4d6c2141ed62239361e68b23c402e60e4a00a2 SHA-256: 42c6d065eab73fda50e56b384a29496dcdcd68cc439dfec107c0e81432b0ab7d

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

This PDF file was flagged as malicious by an ML classifier and contains embedded JavaScript with eval() calls, indicating an attempt to execute obfuscated code. The presence of PDF_JAVASCRIPT and PDF_JS heuristics further supports this. The script likely downloads and executes a second-stage payload, though the exact URL or execution method is heavily obfuscated. The document body itself does not provide direct clues to the user-facing lure.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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` `4ab91b60c595161d4e4eec9181cec0493089b46d8ebe6bd6ecf2f9f40c23cf3e`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	8254 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 9 long base64-like blob(s).

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