Malicious PDF — malware analysis report

Static analysis result for SHA-256 59a86bacdc92dc6c…

MALICIOUS

PDF

3.3 KB
MD5: 30a49890dfadfcf74db178b99e6842b6 SHA-1: d3604c909869d4dad66360e9e9f95dc8f46162e9 SHA-256: 59a86bacdc92dc6c49b4cf7e4f5a38d5805c4c78aa7d9d84902d5911fdaadd9d
106 Risk Score

Malware Insights

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

The file is a PDF containing embedded JavaScript, flagged by multiple heuristics and ClamAV as malicious. The ML classifier provides a very high confidence score. The embedded JavaScript is likely responsible for executing the exploit, leading to the detection of 'Pdf.Exploit.Agent-36121'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
  • 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_obj0007_000.js
50525e410f72ebe38fadef524f512fb29f95f348345fb726cf1a9850ac66fa27		 pdf-javascript-stream PDF /JS object 7 at offset 0xA87 362 bytes

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