Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa502d570173c018…

MALICIOUS

PDF

5.9 KB
MD5: bc3a41dd3cd236f1e395b2b681acf430 SHA-1: 337c1e52f38be44c9e7961bbd81164f27177b78a SHA-256: fa502d570173c018a41ede30fe76decd58df9a794daf050d19179ca849c9d5eb
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Dropper.Agent-7326860-0'. Embedded JavaScript streams were also detected, indicating the likely execution of malicious code. The ML classifier strongly supports the malicious verdict. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for dropper malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7326860-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7326860-0
  • 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_obj0012_000.js
61b46047f90b888a00e497def64b956f6da2cb6e69e8905a21e0ba446aa10cd0		 pdf-javascript-stream PDF /JS object 12 at offset 0x14FC 93 bytes

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