Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9d977a1d3606529…

MALICIOUS

PDF

12.3 KB
MD5: a2f7e51287bda96d1af162ad15a47f65 SHA-1: b397f2da0ec8ab8d625345615c6180481403b7f2 SHA-256: a9d977a1d3606529f098b80740f5179f4cb163ab4d5b9d6ff6f25896f38e2ab4
106 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript, flagged by multiple heuristics and a high-confidence ML classifier. ClamAV identifies the file as Win.Trojan.Agent-36281, indicating a known malicious pattern. The embedded JavaScript is likely responsible for executing the malicious 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
6f4c814f21e6049b9429450e6d7fe2bb86ec09bcefc89bfded9461ba58757ff2		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11453 bytes

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