Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb4b0130706bb354…

MALICIOUS

PDF

3.3 KB
MD5: 3396a8330b0ab079dd9eeedb892f543b SHA-1: 60866d78efe30fc1a989d4908f18eabcc6e18b90 SHA-256: eb4b0130706bb354b5a0111a7bb3b8865e53c8e8e479d1a52dc8b4bfe509594a
106 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Exploit.Agent-36121 and a machine learning classifier assigned a high probability of maliciousness. Embedded JavaScript was detected, indicating an attempt to execute malicious code upon opening the document. The specific exploit and payload are not detailed in the provided evidence, but the presence of JavaScript strongly suggests 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
b640b5cf7e71d5773c47eb10d72527797e410b3353f7bc4208b4969def51222a
pdf-javascript-stream PDF /JS object 7 at offset 0xA87 371 bytes