Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c1c0c8a4f987ac9…

MALICIOUS

PDF

126.7 KB
MD5: 4d205eccbffc2261640a7c7b51feaf6c SHA-1: 2e2dc5808a50f17c354183bd610081a67dda2ac2 SHA-256: 5c1c0c8a4f987ac97a246cb7209f0e3f23ede43b5bc505eb7159622c394da18a
106 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The file is identified as malicious by multiple heuristics, including a high-confidence ML classifier and ClamAV detection. The presence of JavaScript actions and embedded JS streams within the PDF strongly suggests exploitation of client-side vulnerabilities, likely to download and execute a secondary payload. The specific exploit and payload are not detailed in the provided evidence.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36388 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36388
  • 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.

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