Malicious PDF — malware analysis report

Static analysis result for SHA-256 58b13db4212675a8…

MALICIOUS

PDF

3.2 KB
MD5: ed4b03bb87589fef054897a3b1494059 SHA-1: 0d7e701559d35c210ee8fa2556b9e616e6d4d7b1 SHA-256: 58b13db4212675a82b7ef0145b8bc9949cf11e0235d628d202d3b28930b11ba8
108 Risk Score

Malware Insights

The PDF file was flagged by multiple heuristics, including a high-severity ML classifier and ClamAV detection for 'Pdf.Exploit.Agent-36121'. The presence of embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics, suggests the file is designed to execute malicious code upon opening. This JavaScript is likely responsible for exploiting a PDF vulnerability to achieve its malicious objective.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
  • 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_obj0007_000.js
8a3262c3d82e9ee0dd4d0ff709c0e7bf7532683c1c1663f1212cba4e600d77c5
pdf-javascript-stream PDF /JS object 7 at offset 0x9C9 492 bytes