Malicious PDF — malware analysis report

Static analysis result for SHA-256 25e7a136222c1533…

MALICIOUS

PDF

12.4 KB
MD5: beb9951732838609a591eebb5c971f3d SHA-1: 88452a0386f981585bf5a8cd4c22c5eabfb162f5 SHA-256: 25e7a136222c1533648a7b40da9f98c5584a35548e4300cb9d42508f0ca31db6
106 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection identifying it as Win.Trojan.Agent-36281. The presence of embedded JavaScript streams indicates an attempt to execute malicious code, likely to exploit vulnerabilities within the PDF reader or download a secondary payload. The ML classifier also strongly indicated maliciousness.

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
2712cc98969466bf55c3bc81bc2ced0bd98bed20ffbc859852e185618e74f819		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11600 bytes

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