Malicious PDF — malware analysis report

Static analysis result for SHA-256 891582d65a9f403a…

MALICIOUS

PDF

24.1 KB
MD5: ca209d18ef1da137a76743fb75cb1df8 SHA-1: 7b941524f002f3e39efeb39da1792506ce38dcff SHA-256: 891582d65a9f403afb0cbb4e0e4bb5dcde6a7d1cefb74e1e47605d6cecbe8d4a
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF file that contains an XFA form, which is often used to deliver exploits. Static analysis detected a critical vulnerability, CVE-2010-0188, related to the LibTIFF XFA image exploit. This exploit is likely used to download and execute a second-stage payload from the embedded URL. ClamAV also detected this file as malicious.

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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