Malicious PDF — malware analysis report

Static analysis result for SHA-256 51a434ec6dd5837b…

MALICIOUS

PDF

24.1 KB
MD5: 409668d071e16c09bb0d101c180df55c SHA-1: 5d45c77b75858cae1c2221d932d4ac57d3ba116a SHA-256: 51a434ec6dd5837b1f6577b05b75acdba9f1651963c6b6dec31b63fc0ac2a15d
130 Risk Score

Malware Insights

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

The sample is a PDF document identified as malicious by ClamAV and exhibits critical heuristic firings for CVE-2010-0188, an XFA form exploit in Adobe Reader. The embedded XFA content, though obfuscated, likely contains the exploit code. The presence of an embedded URL, while not directly malicious in reputation, is typical for exploit delivery mechanisms.

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/