Malicious PDF — malware analysis report

Static analysis result for SHA-256 9df4072ab4da1200…

MALICIOUS

PDF

24.1 KB
MD5: a8844b5a259c4493f295acdd6fc0d738 SHA-1: a6812bd5d08e67d99c5a2894822c845ac96b12ed SHA-256: 9df4072ab4da12005123b2304237cfd2ada6e015dc2ccb00aa0026712c570e8c
130 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by ClamAV and exhibits characteristics of an XFA exploit. Specifically, the 'CVE_2010_0188' heuristic indicates a known vulnerability in Adobe Reader related to XFA forms. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure. The script content is heavily obfuscated and appears to be part of the exploit mechanism, likely designed to download and execute a secondary payload.

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/