Malicious PDF — malware analysis report

Static analysis result for SHA-256 14f6c3549062cc4d…

MALICIOUS

PDF

11.9 KB
MD5: 7e643f0363d40756223a428bb0efc995 SHA-1: 9fc82f7f7cb3c232cc4b63c10895761adadab6c3 SHA-256: 14f6c3549062cc4d68c2bd4aa97d97a45cfbe451e068b722808afaa3f9994ae1
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by multiple engines, including ClamAV which identified it as Pdf.Exploit.Agent-36324. It contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities to execute arbitrary code. The script's obfuscated nature and the ML classifier's high confidence suggest it is designed to download and execute a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36324 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36324
  • 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
15d22a5b7524add34e2dcfbf98409c00909abcf11f309b4e8c92ddfa55f0478a		 pdf-javascript-stream PDF /JS object 76 at offset 0x2D4 11284 bytes

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