Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3f3529883ba000b…

MALICIOUS

PDF

12.5 KB
MD5: 4fc0858f4a1de2b2e3ee00dc30b07ea2 SHA-1: 2506f0c93073db57dc8132b735d6b8a9ea9148c7 SHA-256: c3f3529883ba000baa14a0104a4969ed2e9fb3718d9205144c9fa96dfc0c4636
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 Service Execution: JavaScript

The PDF file contains embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics. This JavaScript is likely designed to download and execute a secondary payload, as suggested by the ClamAV detection of Win.Trojan.Agent-36281. The embedded JavaScript is the primary mechanism for this malicious activity.

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
bcb0f51c91f9afa46003afc8c85d4883943c0b2b07190432de78acc622017032		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11663 bytes

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