Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcb9b8d429c7502b…

MALICIOUS

PDF

3.3 KB
MD5: 920964aa9e4c46f2c8474ad6c7df8555 SHA-1: 5eb449aca989a5f1f9b36dcc513cd3da3fb02bee SHA-256: fcb9b8d429c7502bbd021d3f515584d5f1eca88ea8278f59be33e5a8fa29cf6d
76 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as Pdf.Exploit.Agent-36121 further confirms its malicious nature. The JavaScript is likely used to exploit a PDF vulnerability and execute arbitrary code, although the specific exploit and payload could not be determined from the provided evidence.

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
b30a2423461518d0f1730e8e2cebc032b125d91ea4284ef13cdff318d4a845a3		 pdf-javascript-stream PDF /JS object 7 at offset 0xA7A 291 bytes

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