Malicious PDF — malware analysis report

Static analysis result for SHA-256 42d4f99b29d3b381…

MALICIOUS

PDF

12.3 KB
MD5: 06772b962dba11a95046157ac080e163 SHA-1: 2053cb8e34a25e02fd39511ad54ede49d1947265 SHA-256: 42d4f99b29d3b381e5fee17516f03d591b7aa85c0ebfe9082b69ade29809770c
106 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36723', and an ML classifier with a very high probability of being malicious. The presence of embedded JavaScript suggests an attempt to execute malicious code, likely to download and run a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36723 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36723
  • 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_obj0076_000.js
6efb53ee4ffc3bf3cd9f091fcbaca5638ae9b0e844cbd74b83381e12ad7aafde		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11492 bytes

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