Malicious PDF — malware analysis report

Static analysis result for SHA-256 a68d7a3f6f358a0d…

MALICIOUS

PDF

3.3 KB
MD5: a61e8a5702da64313f9c77287d63c6d0 SHA-1: 86062f667ea1f4817414893d6903a28b6eeb4b36 SHA-256: a68d7a3f6f358a0da82a44cd18e26af96c65164c6718e038c3c8df5d31d17422
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

This PDF was flagged as malicious by ClamAV with the signature Pdf.Exploit.Agent-36121 and a high ML score. Embedded JavaScript was detected, indicating an attempt to exploit vulnerabilities within the PDF reader. The exact nature of the exploit and payload could not be determined due to obfuscation, but the overall pattern suggests a downloader or dropper.

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
b5ab17a7f7dd823d3ef6031e7416d59a8c282adc88df925d81243844d32e2efc		 pdf-javascript-stream PDF /JS object 7 at offset 0xA87 376 bytes

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