Malicious PDF — malware analysis report

Static analysis result for SHA-256 539b9234f9687f42…

MALICIOUS

PDF

12.2 KB
MD5: c4180595dbc4e218c56a36b17611bdc7 SHA-1: 2073f075b975d042d8d6186e826e9f51f39eb343 SHA-256: 539b9234f9687f42ba0eeaa8ebcad0d1d4e14546d98b127d825b8290cd97b8ad
106 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier with a very high probability of being malicious and was also detected by ClamAV as Win.Trojan.Agent-36281. Embedded JavaScript was found, indicating an attempt to execute malicious code upon opening the document, likely to download and execute a secondary 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
5dcd07f9738b4eff29c7004d3214e08a963f051b0eb90a026734fd6b9c5861a7		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11370 bytes

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