Malicious PDF — malware analysis report

Static analysis result for SHA-256 d70ddd0fd089ef48…

MALICIOUS

PDF

10.2 KB
MD5: bb07622c23aeb89292eafe7076ca41c3 SHA-1: 54e27df66cb5e5df37013c7f9c5885834356b7ad SHA-256: d70ddd0fd089ef48593445f935e40206bd20c4bb57c8590c5edeae0821494900
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/Shell Script Execution: JavaScript

The PDF contains embedded JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ML_NYX_PDF_MALICIOUS and ClamAV_DETECTION heuristics confirm its malicious nature, with ClamAV identifying it as Pdf.Dropper.Agent-7309834-0. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for PDF-based malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7309834-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7309834-0
  • 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_obj0035_000.js
893f794dca92b5da38e00bf30b80f490ad7b0bd18bc73f04ba1c001cb0283491		 pdf-javascript-stream PDF /JS object 35 at offset 0x17E 22189 bytes

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