Malicious PDF — malware analysis report

Static analysis result for SHA-256 9768ad98d32036ff…

MALICIOUS

PDF

24.5 KB
MD5: 6cff7bfea1ffa101cb04b836353c0751 SHA-1: a03ee9758db8f5b83955ed69ac8c10a5421933d6 SHA-256: 9768ad98d32036ffb9271add3781a2cee3449c54941f6dc38657cac2e1c06d55
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that exploits the CVE-2010-0188 vulnerability in Adobe Reader via XFA forms. The embedded JavaScript, though obfuscated, appears to be responsible for triggering the exploit. The primary goal is likely to download and execute a second-stage payload from a remote location. The embedded URL is associated with XFA templates, which is consistent with the exploit vector.

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/