PDF malware analysis — malicious · 411a53173ae0c5cf

MALICIOUS

PDF

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

MD5: 9d3d37f52a2ce3f7f7fb4bcf26a72bda SHA-1: fc742899a892d9a34338278e97ea415370851aa3 SHA-256: 411a53173ae0c5cf5b51ff3510d88172c6d6c85da0cdc217f5a73ee3ce6b4f9c

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript with multiple eval() calls, indicating obfuscated code execution. Heuristics confirm JavaScript actions and an eval() call, and a machine learning classifier flagged it as malicious. ClamAV detection as 'Pdf.Exploit.Agent-36118' further supports malicious intent. The embedded JavaScript likely attempts to download and execute a second-stage payload, a common technique for PDF-based exploits.

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` `dd64b9c5a077b9537fd1e8a4824f57e27c8f39eefc65f2759fd0c4da49bc2d64`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13522 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 10 long base64-like blob(s).

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