Malicious PDF — malware analysis report

Static analysis result for SHA-256 37cec320b42d6e4b…

MALICIOUS

PDF

3.3 KB
MD5: d68b6f2b92948fa6d56184c9b313e895 SHA-1: 00595728bc536eebcfa4b7880df5490e02c82e9b SHA-256: 37cec320b42d6e4b78d7dce07f389dbe37c671ab437a488c646dbc91190fb4e2
106 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36121' and a high ML classifier score. Embedded JavaScript was also detected, indicating the potential for arbitrary code execution. The lack of readable document body text prevents a more specific determination of the lure, but the technical indicators strongly suggest an exploit delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
  • 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_obj0007_000.js
c7b91464d2d03f2b9c0b5b7212c9f108d33c1330edce8eb3f1ded164a2a3a3cb		 pdf-javascript-stream PDF /JS object 7 at offset 0xA84 288 bytes

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