PDF malware analysis — malicious · ad314a24ae0a667e

MALICIOUS

PDF

4.7 KB Created: 2008-08-06 01:42:27 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: f06b1555765cd18924962fc3ed49d14b SHA-1: 94471173560588b0053f4cf24418d75c2920bb45 SHA-256: ad314a24ae0a667e42cf34c72ea7e2653c1cb9e646de1d6857d9339b208ab29c

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

This PDF document contains embedded JavaScript, flagged by multiple heuristics including PDF_JAVASCRIPT and PDF_JS. The presence of an eval() call within the JavaScript stream (PDF_EVAL) strongly suggests the execution of obfuscated or dynamically generated code. The ML classifier also identified this PDF as malicious with high confidence. The primary attack pattern involves leveraging JavaScript to execute arbitrary code, likely for downloading and running a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (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_obj0013_001.js` `66d53bee75fcce85574592dc67d2d8ebb213787afbecc3e8031d62cbd53a33af`	pdf-javascript-stream	PDF /JS object 13 at offset 0x36B	6506 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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