Malicious PDF — malware analysis report

Static analysis result for SHA-256 e18b3ec027328a11…

MALICIOUS

PDF

44.6 KB
MD5: 89f616d248f6e7aa39b8ad3f38b47339 SHA-1: 3f650aa68360d5d9edad61e50d8f8354500f2dc6 SHA-256: e18b3ec027328a11f384ec503b489f03f4f92ce0148066e893059df9748d7a86
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection for 'Heuristics.PDF.ObfuscatedNameObject' further suggests malicious intent. While the document body is heavily obfuscated and truncated, the presence of JavaScript points towards an attack pattern involving code execution. The embedded URLs, though not directly malicious, are part of the document's structure. The primary attack vector appears to be the execution of obfuscated JavaScript, likely to download and execute a secondary payload.

Heuristics 5

  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • 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.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xci/2.6/
    • http://www.xfa.org/schema/xfa-template/2.6/

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