Malicious PDF — malware analysis report

Static analysis result for SHA-256 6166d140e0669d12…

MALICIOUS

PDF

20.4 KB
MD5: fb8a418d4d7455bafd831c2aab938bdd SHA-1: aec8ecbbfd9972435c1d320ed41d3d3a4c490c82 SHA-256: 6166d140e0669d124c2ee0d8caddb0e654f0fb432d87d3b0a7209174b6c7349b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded XFA (XML Forms Architecture) content, which is known to be a vector for exploiting vulnerabilities in Adobe Reader. Specifically, the CVE-2010-0188 heuristic indicates exploitation of the LibTIFF component within XFA forms. The embedded URL, while seemingly benign, is associated with XFA templates and could be part of a larger exploit chain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the download and execution of a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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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