Malicious PDF — malware analysis report

Static analysis result for SHA-256 db749b9744b58eb1…

MALICIOUS

PDF

31.6 KB
MD5: a60688e87e974bab4f54cdcba170cd9e SHA-1: 659ce1fe507fc0101bfe7791549dc243ebadccf8 SHA-256: db749b9744b58eb110eb18c78b9b3f9f0e5c47961d75a522d06e2162af8bd9d0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1566.002 Phishing: Spearphishing Attachment

The PDF utilizes XFA forms and exploits CVE-2010-0188, as indicated by critical heuristic firings. ClamAV also detected it as Js.Exploit.HTML-30. The embedded URL, while not directly malicious, is associated with XFA templates, further supporting the exploit vector. The ML classifier strongly flagged this PDF as malicious.

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: 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
  • 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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