Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd343b645a08e5d6…

MALICIOUS

PDF

12.7 KB
MD5: a559f3c0d8029e5711f1ccd071979d2c SHA-1: 1078b3de69212b1d78de663b2bca3638e3c048da SHA-256: bd343b645a08e5d626f1c90da3240a86b3d9c3151860baaa7fbdd2e7349d9864
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection as Win.Trojan.Agent-36281. It contains embedded JavaScript, indicating an attempt to execute malicious code upon opening. The primary attack vector appears to be exploiting PDF vulnerabilities to deliver a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Win.Trojan.Agent-36281 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Agent-36281
  • 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_obj0076_000.js
7838386dd07cb2f2e19a9d0132b9172c82e4c947e60bf3b4833313913f7cd293		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11912 bytes

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