Malicious PDF — malware analysis report

Static analysis result for SHA-256 558d1eb9391a0f42…

MALICIOUS

PDF

24.1 KB
MD5: 77de8d6e85044e436bedc13fab30a0a2 SHA-1: 6c91713d201dbb4d7435c06914050f5f04c2eaf5 SHA-256: 558d1eb9391a0f426728fc3266138a6f9b218d12ba2bac4f1aa66234d6779e31
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF file that contains an XFA form. Heuristics indicate a critical vulnerability, CVE-2010-0188, related to the LibTIFF XFA image exploit. This suggests the PDF is designed to exploit Adobe Reader, leading to arbitrary code execution. The embedded URL is likely related to the XFA template, but its reputation is unknown.

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/

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