Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7dbee162ccf6a0c…

MALICIOUS

PDF

58.9 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: Acrobat PDFMaker 7.0.5 for PowerPoint (via ubst)
MD5: 1ab58d50cf72c16e95df890ea39a3ec9 SHA-1: a929213715549ec17e6ea33a55ce42cb682b80bc SHA-256: d7dbee162ccf6a0ced572796b45f003aaed1523d0ecb392c0abf5fb855da86eb
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, flagged by multiple heuristics and ClamAV as malicious. The ML classifier provides a very high confidence score. The embedded JavaScript is the primary mechanism for exploitation, likely leading to the download and execution of a secondary payload, as indicated by the ClamAV detection name 'Pdf.Exploit.Dropped-94'.

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
b8a2aaf62c9b908ae3a057747fc74c968498f5dd860c16273e569c063b24c41f		 pdf-javascript-stream PDF /JS object 76 at offset 0x99B 50303 bytes

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