Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d18e566a960ab52…

MALICIOUS

PDF

4.9 KB
MD5: 776e457f643fd6aa60d93ed6a3aeb665 SHA-1: 907ef0579b0bc0132d7de6fd046a7ee0004c9a2d SHA-256: 6d18e566a960ab5254297e0962796a683bae49259300531292fb5e6777a942a5
106 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV with a critical heuristic for obfuscated JavaScript. The embedded JavaScript is likely designed to download and execute a second-stage payload, a common technique for initial compromise. The presence of JavaScript within the PDF points to T1059.007, and the overall malicious nature suggests exploitation for client execution (T1203) and likely delivery via spearphishing attachment (T1566.001).

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.