Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3420c1bbc362615…

MALICIOUS

PDF

12.1 KB
MD5: d3e34047fb814577c6264a6d6986a560 SHA-1: 66985c7c9efff6d76a6499c700707908cc2b38be SHA-256: a3420c1bbc362615346b34aab40a7c600af13cf7144d34c21d9521d4b21241b1
106 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36723' and a high ML classifier score. It contains embedded JavaScript, indicating an attempt to execute malicious code upon opening. The primary attack vector appears to be exploiting a PDF vulnerability to run this script.

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
a0d97d900f845595a24bacec27b22b21b70f787af571926b1995bb2f20fd6390		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11284 bytes

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