Win.Trojan.Agent-36281 — PDF malware analysis

Static analysis result for SHA-256 d9b1f1371c4383c2…

MALICIOUS

PDF

12.5 KB
MD5: a3c33bb59e73c905b905b555c12cbd4b SHA-1: 04846d069e6bb4743cee11fd80e7a7a8a39d7833 SHA-256: d9b1f1371c4383c25d00f105c9186f0563af0419fb985fc04ffbf568a23c47a6
106 Risk Score

Malware Insights

Win.Trojan.Agent-36281 · confidence 98%

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

The PDF file was flagged by a machine learning classifier with high confidence and also detected by ClamAV as Win.Trojan.Agent-36281. It contains embedded JavaScript, indicating an attempt to execute malicious code upon opening. This JavaScript likely serves to download and execute a secondary payload, a common tactic for trojan agents.

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
771cb2d2d15fcc25943abb592696e7236c44aef34a5761671c3df2407af0ad22		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11688 bytes

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