Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d3ed56f1574de2…

MALICIOUS

PDF

62.5 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: Acrobat PDFMaker 7.0.5 for PowerPoint (via ubst)
MD5: 7b579bc8b0f3303c476e52e01b80f255 SHA-1: 1dddee519c9b2671ab3ba521f5d401855ca8632d SHA-256: 14d3ed56f1574de299e2095ae670ec3ba7db3684f99bd8ca5f0c0deb26dbc384
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 heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Dropped-94'. It contains embedded JavaScript which is heavily obfuscated but likely intended to download and execute a secondary payload. The ML classifier also strongly indicated maliciousness.

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
199eb746a9cb6006f92769f2afee0ea5e23a81dd33638fdda7296b2f0c092e6c		 pdf-javascript-stream PDF /JS object 76 at offset 0x99B 53455 bytes

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