Malicious PDF — malware analysis report

Static analysis result for SHA-256 32e50af80e480448…

MALICIOUS

PDF

24.1 KB
MD5: 5ae0818e9a37a970d13007b54c962118 SHA-1: 1f89783b16fffff98ba535525a4028f6ab2b2fb7 SHA-256: 32e50af80e4804488f8d16e8adadc498a7bb8c4a22e02a43fb426bc7d9537df1
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1204.001 User Execution: Malicious Link

The sample is a PDF file that contains an XFA form, which is a known vector for exploiting vulnerabilities in Adobe Reader. Specifically, the 'CVE_2010_0188' heuristic indicates exploitation of the LibTIFF vulnerability within XFA forms. ClamAV also detected the file as malicious. The embedded URL, while seemingly benign, is part of the XFA structure and could potentially be used in conjunction with the exploit.

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/