Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc41368309554247…

MALICIOUS

PDF

83.7 KB
MD5: a95b80aa94166910a210778ddc6c0619 SHA-1: e0251b9966ec5f85ddac6ff85dc0ac513468b098 SHA-256: cc41368309554247f0f5a25d0509d75b7079c63a000001d8087d57a564ae1f95
106 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical ClamAV detection identifying it as Win.Trojan.Agent-36331. The presence of embedded JavaScript, detected by PDF_JAVASCRIPT and PDF_JS rules, strongly suggests an attempt to execute malicious code upon opening. This embedded script likely serves to download and execute a secondary payload, a common technique for malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Win.Trojan.Agent-36331 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Agent-36331
  • 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
9a3df5bd333e4875e9a016267242bd1a48f2055eb36a82e3fecdaabb0705526c		 pdf-javascript-stream PDF /JS object 76 at offset 0x2D4 77029 bytes

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