Malicious PDF — malware analysis report

Static analysis result for SHA-256 09118118431013ca…

MALICIOUS

PDF

11.3 KB
MD5: 395eab6c08ddfc68181022a7b84ccd9d SHA-1: 185efa2448dd9117fd159776135ae82367d5c8ca SHA-256: 09118118431013cac19f5c5aa2f10cfba10f6660fc2647239d370437e34265d0
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript, flagged by multiple heuristics, and is detected by ClamAV as Pdf.Dropper.Agent-7226226-0. The JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for dropper malware. The ML classifier also strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7226226-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7226226-0
  • 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_obj0087_000.js
70892a4ae13c301e3fdb3278bf22796be1cd0c5cb099dc8c58561b42079114b1		 pdf-javascript-stream PDF /JS object 87 at offset 0x105 28371 bytes

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