Malicious PDF — malware analysis report

Static analysis result for SHA-256 4299a39a80b67912…

MALICIOUS

PDF

11.4 KB
MD5: 19781f5d0c065739541ffeecee84168f SHA-1: 266ce2b5409bca349ed33964c49aa18c12f93b4b SHA-256: 4299a39a80b6791277e17940154bece75caa22332200e40be44c810b4c2efd44
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The file is a PDF document flagged by ClamAV as Pdf.Exploit.Agent-36177. Static analysis detected embedded JavaScript, indicating an attempt to leverage a PDF vulnerability for code execution. The ML classifier strongly supports a malicious verdict. The embedded JavaScript is the primary vector for the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36177 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36177
  • 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
a7e6203b0e8f812879ed8382ccbb3900ad81b5a92faf27692f51de6e8c96c13a		 pdf-javascript-stream PDF /JS object 7 at offset 0x1A6 569 bytes

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