Malicious PDF — malware analysis report

Static analysis result for SHA-256 97e66a4b1ad5e3dd…

MALICIOUS

PDF

4.4 KB
MD5: a5db95a72503644a897960304e747dae SHA-1: eef5b69590c1e24e48bd7499f60f603a182aaeef SHA-256: 97e66a4b1ad5e3dde5b7420a995945e10144578dccfd4c2e645d8bbd5a0c1c5a
106 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains embedded JavaScript, which is a common technique for exploiting vulnerabilities in PDF readers. ClamAV detected this file as Pdf.Exploit.Agent-36898, indicating a known exploit. The ML classifier also strongly flagged this PDF as malicious. The embedded JavaScript is likely responsible for executing the exploit.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36898 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36898
  • 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_obj0020_000.js
9f535f5888361a99094a092c6442eedbfaecf23bab9d87e728b6b38d1ab80f79		 pdf-javascript-stream PDF /JS object 20 at offset 0xDF7 240 bytes

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