Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d807b1eb800253…

MALICIOUS

PDF

23.9 KB
MD5: 4e3e56e13c21b7c53336b89228037678 SHA-1: 5a217c66acc9fb192c5adbd14f427d3fc5ca554e SHA-256: c5d807b1eb800253931e33e78c6d30aa40d1d7338dd95a75fafaf4f6a21dcc30
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF file identified as malicious by ClamAV. Static analysis detected the use of XFA forms and a critical vulnerability, CVE-2010-0188, which is known to be exploited in Adobe Reader. The embedded URL, while not directly malicious, is associated with XFA templates, further supporting the exploit vector. The document body content appears to be obfuscated script or data, not user-facing text.

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/