Malicious PDF — malware analysis report

Static analysis result for SHA-256 86a581c85847f72d…

MALICIOUS

PDF

20.1 KB
MD5: d0599441b91689b00190704ea1b83ce6 SHA-1: 4bb140cb14515b1ee836a85e9983b1a9c1dadee2 SHA-256: 86a581c85847f72d1f32d4e807e7f7377858fa067fde7fc7b165eafb744a41d8
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link T1204.002 Malicious Link

The file is a PDF document identified as malicious by ClamAV. Static analysis detected the use of XFA forms and a critical vulnerability (CVE-2010-0188) related to LibTIFF and XFA exploitation. The embedded URL, while seemingly benign, is part of the XFA structure which is known to be exploited. The exploit likely leads to the download and execution of a secondary payload.

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-36826 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36826
  • 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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