Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca9426d457c3c4d7…

MALICIOUS

PDF

24.1 KB
MD5: a48936a3f1e493090ee6986536e839ef SHA-1: fdd8cf7fba5deca08435858e6d56660782d21394 SHA-256: ca9426d457c3c4d7ba1421f32c70989419a5594750e3290e5ce10a2812d2e184
130 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by ClamAV (Pdf.Exploit.Agent-36821). Static analysis indicates the presence of an XFA form and a critical heuristic firing for CVE-2010-0188, an Adobe Reader LibTIFF XFA image exploit. This suggests the PDF is designed to exploit this vulnerability upon opening. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure.

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/