PDF malware analysis — malicious · 9f0b97deb0eda846

MALICIOUS

PDF

14.8 KB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: adff21e8ccd470ce2d56396d55828f1a SHA-1: 1d943a6256f9a4b4d144ebe31c2a4e1266dccebf SHA-256: 9f0b97deb0eda846f71ff47931a9b46122c442a8a7c21d41471291a02c0e2100

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains obfuscated JavaScript that utilizes `eval()` to execute code. This is a common technique for exploiting PDF vulnerabilities to download and run additional malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. The script's obfuscation and use of `eval` suggest it's designed to bypass static analysis and execute a payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36118 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36118
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_000.js` `cbf1999a953a44f26d3bec383773369abd4cac7f414bb8fda9c260d0b65b7f68`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13593 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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