PDF malware analysis — malicious · cc2fc78d90f4092e

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: f84464239bd49fd2523f471875f4ecec SHA-1: 05402614e3a0ba9b000fd7ade052a0b8a1a958e4 SHA-256: cc2fc78d90f4092eed4b3c82411bc5514e8999896992c2247bf14af13d02d7eb

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The presence of an eval() call (PDF_EVAL) and ML_NYX_PDF_MALICIOUS classification strongly suggests malicious intent. The embedded JavaScript stream, named 'javascript_obj0013_001.js', is likely responsible for obfuscating and executing a secondary payload, a common technique for malware delivery.

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` `49446d9278a5949b006fcc928d9e733cc9b5270c842b1232b4e87801d68aebe3`	pdf-javascript-stream	PDF /JS object 13 at offset 0x364	6404 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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