Malicious PDF — malware analysis report

Static analysis result for SHA-256 df881f9eb92487e7…

MALICIOUS

PDF

3.3 KB
MD5: 7c6c3531fd9094fe512d5e65d2fbaa0e SHA-1: 4cd53193919f44feecb6f5dda6e426cb02d845fa SHA-256: df881f9eb92487e702d270f485d33dee7fd136131e851d0125e1f9e3ffa8c535
76 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detection as 'Pdf.Exploit.Agent-36121' confirms its malicious nature. The embedded JavaScript is likely responsible for exploiting a vulnerability within the PDF reader to execute arbitrary code. The document body is unreadable, but the presence of JavaScript and the ClamAV signature strongly suggest an exploit delivery mechanism.

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
4a8853cdd7aa6f4c240caff6249e0e181d1f9f4d31a04d343c95a8dd0e85ba5a		 pdf-javascript-stream PDF /JS object 7 at offset 0xA85 366 bytes

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