Malicious PDF — malware analysis report

Static analysis result for SHA-256 80ce7ecb999b18b5…

MALICIOUS

PDF

28.1 KB
MD5: ebf192706cf2a56b23d985409111e1d1 SHA-1: 38ebdb4bbb3af6abbf55dae1cb1a9a2170d26817 SHA-256: 80ce7ecb999b18b55b3d431cfd378827ed540fb8a5c4471baa40ea491fb0d32d
98 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged by a machine learning classifier and ClamAV as malicious (Js.Exploit.HTML-30). It utilizes XFA forms, a known vector for exploiting PDF vulnerabilities. The embedded JavaScript, although obfuscated, is likely responsible for executing the malicious payload, potentially downloading and running further stages. The embedded URL is a common schema for XFA templates, but its presence in this context is suspicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • 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://www.xfa.org/schema/xfa-template/2.5/

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