Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aa7fa9ce885097a…

MALICIOUS

PDF

24.1 KB
MD5: 3cfc843ec7e575ac57999ee6dfe7fc5c SHA-1: 8ef4d1c4a3f0d2161ede3e0b2cd805c3219ac425 SHA-256: 8aa7fa9ce885097a94b77ed7ea050b36f87fb7f598dcd9e5e243e127240a99f7
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability, which targets XFA forms and the LibTIFF component in Adobe Reader. The embedded URL, though seemingly benign, is associated with XFA templates and likely serves as a lure or part of the exploit chain. ClamAV also identified this as a known PDF 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/