Malicious PDF — malware analysis report

Static analysis result for SHA-256 36b831f3313d3084…

MALICIOUS

PDF

3.3 KB
MD5: 7758986e0f2a43ab3a56cb13ac51cd8c SHA-1: dd5d46e3d29056870e24c54ce8925fff415a0392 SHA-256: 36b831f3313d308471d8e8f16f16d844d0855d7876068d2949ff99911679cb5a
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as 'Pdf.Exploit.Agent-36121' strongly suggests this is a malicious exploit. The embedded JavaScript is likely responsible for executing a secondary payload, although its specific actions are not detailed in the provided evidence. The lack of readable document body text prevents a more specific determination of the lure.

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
35cd7784ef824b8769e93007899fa4314e13d0bf1a2b345bcdbfe6d7f19e452a		 pdf-javascript-stream PDF /JS object 7 at offset 0xA87 367 bytes

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