Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d972679c7049ee9…

MALICIOUS

PDF

23.9 KB
MD5: c87884ee238f0f6179a56bd113e7a2b2 SHA-1: 5a08007b4c21fa3c7a95eead842e396007a0b95e SHA-256: 5d972679c7049ee90d9d87048430ee41c1f50ce5282e39560e285a0fc5f0a955
162 Risk Score

Malware Insights

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

The file is a PDF that leverages an XFA form to trigger the CVE-2010-0188 exploit, which is known to allow for arbitrary code execution. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL, while not directly malicious in this context, is part of the XFA structure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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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