Malicious PDF — malware analysis report

Static analysis result for SHA-256 0189f5a93fa52db8…

MALICIOUS

PDF

24.2 KB
MD5: 7adfa8cb3a3e7d3fe911a5c42d316a34 SHA-1: ff2c5b281472f85c18368dc2a4cc0e777ef0f89b SHA-256: 0189f5a93fa52db8b0de1750a3cc42bca6afa8bbaccb52bd5be9fc6c3f0bffd7
162 Risk Score

Malware Insights

MITRE ATT&CK
T1204 User Execution T1566 Phishing

The file is a PDF document identified as malicious by multiple heuristics, including a critical finding for CVE-2010-0188, an Adobe Reader LibTIFF XFA exploit. The ML classifier also strongly flagged this PDF as malicious. The embedded URL, while seemingly benign, is part of the XFA template structure and may be used in conjunction with the exploit.

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.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
  • 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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