Win.Trojan.Agent-36281 — PDF malware analysis

Static analysis result for SHA-256 ba940a2e82b02eba…

MALICIOUS

PDF

12.5 KB
MD5: ba6cf18a4f31e737c658acd5352af263 SHA-1: cd83468105bd42aa30c7337010190392b71e869e SHA-256: ba940a2e82b02ebafcfe07eae97ec878f506b2f77115a3e3c95f4343ba6ff9d0
106 Risk Score

Malware Insights

Win.Trojan.Agent-36281 · confidence 98%

MITRE ATT&CK
T1059 Command and Scripting Interpreter

The file is a PDF with embedded JavaScript, flagged by multiple heuristics and a machine learning classifier as malicious. ClamAV identifies it as Win.Trojan.Agent-36281. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for trojan delivery.

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
e4c7803057e433f53990c44463df0a3cec59167888b9dbaf0c371deff50a8e48		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11692 bytes

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