Malicious PDF — malware analysis report

Static analysis result for SHA-256 6694a4ef4ab34ed9…

MALICIOUS

PDF

10.5 KB
MD5: c9b3c4485d04722d8901bfed0c2b88b5 SHA-1: 484e2f62facd3732ece6939afbeb299f427f1e49 SHA-256: 6694a4ef4ab34ed91888983961bb1e02bc02bc6bb3c8a76b932e841043dccebe
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

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 embedded JavaScript is likely responsible for executing a secondary payload, a common technique for malware delivery via malicious documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • 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.