Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef25a88c3dd6104b…

MALICIOUS

PDF

24.1 KB
MD5: e5a36b7feaf340b474ba60ed4874d89e SHA-1: 96f67de9dac8027e22405d661e1faab24073624c SHA-256: ef25a88c3dd6104b9d0e1d7f1730f357217f79be7792a46414e71bba6c0b1ada
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF document that contains an XFA form, which is a known vector for exploiting vulnerabilities. Specifically, the 'CVE_2010_0188' heuristic indicates a critical exploit targeting Adobe Reader's LibTIFF component. This exploit likely leads to arbitrary code execution, as suggested by the ClamAV detection 'Pdf.Exploit.Agent-36821'. The embedded URL, while seemingly benign, is part of the XFA structure and could be involved in the exploit chain.

Heuristics 4

  • 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
  • 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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