Malicious PDF — malware analysis report

Static analysis result for SHA-256 70545213b36136a4…

MALICIOUS

PDF

24.1 KB
MD5: 3b27b3b5673de54b753f08bbe60391bd SHA-1: 0842e9aed24564bce8802dc59750c36169383ea6 SHA-256: 70545213b36136a482e619b8c7ca5ece7a31201720335ba390a7f27832fbff73
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains an embedded XFA form that exploits CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF processing. This exploit allows for the execution of arbitrary code, indicated by the critical heuristic firings. The embedded URL, while seemingly benign, is associated with XFA templates and could be a lure or part of the exploit chain. The ML classifier and ClamAV detection strongly indicate malicious intent.

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.Agent-36821 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36821
  • 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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