Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba0af24cc6cb9e0…

MALICIOUS

PDF

12.1 KB
MD5: 0091df1fbe7e87a29d4109a629a94c67 SHA-1: 7204906b8b7aa75636ad3dd8cd154216c4609941 SHA-256: 2ba0af24cc6cb9e04dd473ca2fc74f6af9aed0972bc2dc037a653ec39389e7f5
106 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as Win.Trojan.Agent-36281. It contains embedded JavaScript, indicating an attempt to execute malicious code upon opening. The JavaScript is likely responsible for downloading and executing a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Win.Trojan.Agent-36281 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Agent-36281
  • 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
74ad4becd43e0511343bbc129bad0e1e7a72e23bf0e459c1b1ca7cf587139f16		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11240 bytes

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