Malicious PDF — malware analysis report

Static analysis result for SHA-256 7111182b9114a01e…

MALICIOUS

PDF

24.4 KB
MD5: 9b723d01f0827a2a7bb83e16b66ba6a5 SHA-1: 0daa80ce4ad2ed22a16e92823ee0ad6b4d4c4f3d SHA-256: 7111182b9114a01e038697ba5b17d6e5bb82223370c810572d956bebc28179f6
162 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by multiple heuristics, including ClamAV and an ML classifier. It specifically triggers the CVE-2010-0188 exploit related to XFA forms, indicating it's designed to execute code upon opening in a vulnerable Adobe Reader version. The embedded URL, while seemingly benign, is part of the exploit 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.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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