PDF malware analysis — malicious · 1ff37bdd0ea8f324

MALICIOUS

PDF

2.7 KB Created: 1008-01-01 Authoring application: 3154

MD5: fb4e7ba175a840431ed4899129a7dbee SHA-1: b70c95c89e705abce694cc47760e64c20b15465b SHA-256: 1ff37bdd0ea8f3241e187e974af5fbce175d4ee1d659290c7954c60bee7a0e34

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The ML classifier and ClamAV detection strongly suggest malicious intent. The extracted JavaScript file, 'javascript_obj0013_001.js', is flagged as suspicious due to obfuscation, pointing towards its role in downloading and executing a secondary payload. The embedded JavaScript is the primary mechanism for exploitation.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36014 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36014
Suspicious extracted artifact medium 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `3d6bb18e1101d755448bff379e1075dfe89c290550bb0d099d17cbba6bd2ca25`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4785 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).

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