PDF malware analysis — malicious · 7add3215d59d6d01

MALICIOUS

PDF

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

MD5: ddd8497b0486e1b3076d997865735f8b SHA-1: 5212f0d4a04cb80cb0afa20509e2f7874e132413 SHA-256: 7add3215d59d6d01973a48ffc69a3aecbe80bb958e0a4c35c88dc140602eb8d2

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, flagged by multiple heuristics including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL due to an eval() call. The ML classifier strongly indicates maliciousness. The embedded JavaScript stream, named 'javascript_obj0013_001.js', is obfuscated and likely responsible for downloading and executing a secondary payload. The confidence is slightly reduced due to the obfuscation preventing a definitive analysis of the script's exact actions.

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` `8b976c7f46ba30ab33076b83e1bb52f608bef662ed40e0165b31d6f0ab130c4f`	pdf-javascript-stream	PDF /JS object 13 at offset 0x365	6402 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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