Malicious PDF — malware analysis report

Static analysis result for SHA-256 462d79ffb66cc480…

MALICIOUS

PDF

12.4 KB
MD5: 25652bf19d37ac76b28a1ece48ab9bcc SHA-1: 7908b8292a29901de8a2f5174302a2445d0c0fcd SHA-256: 462d79ffb66cc4804d83947d3263f8d361787cdc6d79f012f560f0b4c56689d9
108 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link: Malicious File

The file is a PDF identified as malicious by ClamAV and an ML classifier. It contains embedded JavaScript, indicating an attempt to exploit a vulnerability within the PDF reader. The JavaScript is likely designed to download and execute a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36723 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36723
  • 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
0987934f0b169d19b43edbd2f42d10312dceb4f5a96fa0c546aafc4ad6a24f96		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11548 bytes

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