Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc7439a888e98f0d…

MALICIOUS

PDF

3.2 KB
MD5: 86c163f9de7dbbcf04abd48a6b812429 SHA-1: 879b80f36254d7ff6928530699be17a2d3a85daa SHA-256: dc7439a888e98f0d10700f9cb469f73df96dc4780c578188dba78ff19c0c5d9b
76 Risk Score

Malware Insights

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

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 embedded JavaScript is likely responsible for executing the exploit, leading to the download or execution of a secondary payload. 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
5a40047b391677f9d02ec9529d47e558309e8173f7ab31853bc3485a87680075		 pdf-javascript-stream PDF /JS object 7 at offset 0x9C0 494 bytes

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