Win.Trojan.Agent-36281 — PDF malware analysis

Static analysis result for SHA-256 90cfbcb466dd17fa…

MALICIOUS

PDF

12.2 KB
MD5: c2b7fcdfb87939a6c6702eeda1f4848a SHA-1: de8877b21fe8913ef752904649bbdfabd9329570 SHA-256: 90cfbcb466dd17fae056f8c0ea0e18003855ee79905fc21c6f3faf10748cfce4
106 Risk Score

Malware Insights

Win.Trojan.Agent-36281 · confidence 98%

MITRE ATT&CK
T1204.002 Malicious File: Malicious JavaScript

The PDF file was flagged as malicious by multiple heuristics, including a high-confidence ML classifier and ClamAV detection identifying it as Win.Trojan.Agent-36281. It contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities and delivering second-stage payloads. The presence of JavaScript actions and streams strongly suggests an attempt to execute malicious code upon opening the document.

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
7d9cb0caf628fdd28577806ab0a8287a03c45aed9b42a5e7c2c243a07cb4c01f		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11413 bytes

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