PDF malware analysis — malicious · baba26262ecc59bb

MALICIOUS

PDF

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

MD5: 015aba658984e025511b48a4b858ca24 SHA-1: 59113262b6986be99a2c2732149490d02e421305 SHA-256: baba26262ecc59bb278241faeabec891ec47ec09f5990f73b426d299257e6168

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

This PDF contains obfuscated JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The ML classifier strongly flagged this sample as malicious. The JavaScript appears to be designed to execute arbitrary code, likely to download and run a second-stage payload. The specific JavaScript code is heavily obfuscated, making a precise determination of its final actions difficult, but the presence of eval() calls and the ML score indicate malicious intent.

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_001.js` `7740fc41ec33ea847d49674f9d1ebdc4a82bb9fce7cd135c75226938ea5794b5`	pdf-javascript-stream	PDF /JS object 13 at offset 0x390	5627 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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