Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ed8a68a6706f198…

MALICIOUS

PDF

63.1 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: Acrobat PDFMaker 7.0.5 for PowerPoint (via ubst)
MD5: 6fccf64a644b6608f67163f0c1db768b SHA-1: 96048bc040f8836c854f8d519cb2ecec11388d84 SHA-256: 6ed8a68a6706f1980556b42553d6f6c74ada64cb45d48d6ce07f9ea70c640b03
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 ClamAV and an ML classifier. It contains embedded JavaScript that is heavily obfuscated but appears to be designed to download and execute a secondary payload. The JavaScript's obfuscation and the nature of the detection suggest a dropper or exploit loader.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
  • 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
fb0abb9248a6b9685f998ace8a540c1a0d00b31959c6b359972314d64e51c883
pdf-javascript-stream PDF /JS object 76 at offset 0x99B 54087 bytes