Malicious PDF — malware analysis report

Static analysis result for SHA-256 35ab1c2b98933e4d…

MALICIOUS

PDF

45.2 KB
MD5: b270cc4cd958f81ba57762419b004a61 SHA-1: 703b7ec7c1a21d3e1464bd5225042e63cd0fe7ea SHA-256: 35ab1c2b98933e4d863ae3a0723bf21dc5ca3e46a658222f9c7a28d0b5478e43
106 Risk Score

Malware Insights

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

The file is a PDF containing embedded JavaScript, flagged by multiple heuristics and ClamAV as a malicious dropper. The ML classifier also strongly indicated maliciousness. The embedded JavaScript is the primary mechanism for delivering the malicious payload, likely by downloading and executing a second-stage component.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7248344-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7248344-0
  • 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_obj0001_000.js
01e35fa10b868c0f621fa4677389f2a851c0364d0f60bd3d17257e7aff2019a6		 pdf-javascript-stream PDF /JS object 1 at offset 0xB220 455 bytes

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