Malicious PDF — malware analysis report

Static analysis result for SHA-256 40f9806639b0715e…

MALICIOUS

PDF

24.1 KB
MD5: 2bd34112294ea039a682b82571b02eac SHA-1: 142794e44858a52a9c260a4001e9bf25cae428e0 SHA-256: 40f9806639b0715e479bc3e1828dc1b55fbe53550f9b6de682f8cae80f7680ec
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF document that utilizes XFA forms and exploits CVE-2010-0188, a vulnerability in Adobe Reader's LibTIFF processing. This exploit allows for the execution of arbitrary code. The embedded URL is likely related to the XFA template, but its reputation is unknown. The document body contains obfuscated JavaScript-like code which is likely part of the exploit chain.

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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