Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f92b920cb2e04f3…

MALICIOUS

PDF

12.3 KB
MD5: 8b7f0bce0111d13147720292ad477a04 SHA-1: 8382a929a39135e8c3b4ff9922f8fa8fe5b37281 SHA-256: 8f92b920cb2e04f3698c86e13308588820908b420bdd193707f7b19e68f762e6
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059 Command and Scripting Interpreter

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. This JavaScript is likely intended to execute malicious code, as suggested by the critical ClamAV detection of Win.Trojan.Agent-36281. The exact behavior of the script is not fully detailed, but its presence within a PDF strongly suggests an attempt to exploit vulnerabilities or trick the user into running malicious code.

Heuristics 3

  • ClamAV: Win.Trojan.Agent-36281 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Agent-36281
  • 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_obj0076_000.js
f54f1043c8829ab36f9579ef404b7b60b1d5192e58f2ee5e88d60afd24ae43fb		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11534 bytes

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