Win.Trojan.Agent-36281 — PDF malware analysis

Static analysis result for SHA-256 26e85464441a581b…

MALICIOUS

PDF

12.7 KB
MD5: 05f9a3cf22d64b9b9c6ab20d37609324 SHA-1: 312b885c888ad53fa34b3bececc580c1447fcb98 SHA-256: 26e85464441a581be2b8a80ef0cf1cfac76bfb1abfedd460ece699aae724f4a9
106 Risk Score

Malware Insights

Win.Trojan.Agent-36281 · confidence 99%

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File

The PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and a critical ClamAV detection identifying it as Win.Trojan.Agent-36281. The presence of embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics, suggests the script is responsible for executing the malicious payload. The primary function of the embedded JavaScript is likely to download and execute a second-stage 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
62ef57985c5c9bdf66c132de300d296bf459077cee82abd06586eb7700203be4		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11881 bytes

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