Malicious PDF — malware analysis report

Static analysis result for SHA-256 f410aa617187c4c6…

MALICIOUS

PDF

11.5 KB
MD5: 1850f1e0e04df591dda6cac535620242 SHA-1: 488d9daa07413da1f865252d00908f78f00c434a SHA-256: f410aa617187c4c66d8dfae5d2ce56f086ea695af6145d906235bc79afe27d42
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF contains embedded JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for PDF-based malware delivery. The ClamAV signature 'Pdf.Dropper.Agent-1501146' further supports its classification as a dropper.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-1501146 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-1501146
  • 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_obj0087_000.js
215c589d1109c527d75f30bb999dd8eb0312c006d382e70691b2b85d5e879f3f		 pdf-javascript-stream PDF /JS object 87 at offset 0x105 28706 bytes

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