Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d4723f7dfa1ed03…

MALICIOUS

PDF

11.5 KB
MD5: 9aad89ef7559eb092881852f826716f9 SHA-1: 28f8298dd6103efcf6b14ec1113ffaa5e4945b7d SHA-256: 0d4723f7dfa1ed03095b8a2ba97c650ae3db382aa1f2590c0ada9643af8893f2
106 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, flagged by multiple heuristics and a high-confidence ML classifier. The ClamAV detection 'Pdf.Dropper.Agent-7228211-0' indicates a dropper functionality. The JavaScript, though obfuscated, is designed to download and execute a secondary payload, a common technique for malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7228211-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7228211-0
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0087_000.js
1d6958b66dd2f1130cb51d19e15c9df19ba6a589123ca0c76c0c54b6cd38b57b		 pdf-javascript-stream PDF /JS object 87 at offset 0x105 28564 bytes

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