Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d6b5091f9222582…

MALICIOUS

PDF

11.5 KB
MD5: 9c2846735c1c595b794952d151334d17 SHA-1: 90a6732b86ade2737c41a6428bc1e601ce485fea SHA-256: 8d6b5091f922258290c2964fe7aa185b6d29984d08e9961abcabcbeb9207a095
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged by multiple heuristics, including a high-severity ML classifier and a critical ClamAV detection for 'Pdf.Dropper.Agent-7281234-0'. The presence of embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics, suggests the document is designed to execute malicious code upon opening. This JavaScript likely acts as a dropper, initiating a chain of malicious actions, such as downloading and executing a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7281234-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7281234-0
  • 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_obj0045_000.js
c475f82b457c4b2ea12ee004bd8f0552ed8f2d42ed5202cb884b4b4f14de97c9		 pdf-javascript-stream PDF /JS object 45 at offset 0x193 27752 bytes

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