Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4b67a2d85555d1a…

MALICIOUS

PDF

12.1 KB
MD5: bf6167ffaf3b563384cfb1274282e7c8 SHA-1: 34de66c9888540f24d6002c505a937cb697fcf21 SHA-256: d4b67a2d85555d1a5d3965d1904652c153b6a3e7f55384f22ee2560487f52bdf
106 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically detecting it as Win.Trojan.Agent-36281. Embedded JavaScript streams and actions indicate an attempt to execute malicious code, likely to exploit vulnerabilities within the PDF reader.

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
fd79180ec0e93eedf583015b74b8e804f90cb3316974c225a4f3e2c3693226a5		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11299 bytes

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