Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ba1224c3a3845a7…

MALICIOUS

PDF

5.2 KB
MD5: 2846d3c5990b5c7747bec9d3ff147002 SHA-1: e249d071995a4f78476e0078bfd081525a4779c1 SHA-256: 1ba1224c3a3845a7359114a0c2162d50dc27b93505fd807b92ec2301f1621351
108 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF was flagged by ClamAV as Pdf.Dropper.Agent-7235583-0 and a machine learning classifier with high confidence. Analysis revealed embedded JavaScript, indicating the document is designed to execute malicious code. The embedded JavaScript likely downloads and executes a second-stage payload, though the exact functionality is obscured.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7235583-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7235583-0
  • 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_obj0052_000.js
c8782d6a4ae119e08f94388a462c4fc01846259bd5b1259d34533d7e3d73b848		 pdf-javascript-stream PDF /JS object 52 at offset 0x16F 16044 bytes

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