Malicious PDF — malware analysis report

Static analysis result for SHA-256 78dded2c1cab6a6a…

MALICIOUS

PDF

24.1 KB
MD5: cd562aed91f402bff561cc4802a80607 SHA-1: a49570fd601f5404fd056e2c7e4ec709f00f1745 SHA-256: 78dded2c1cab6a6a00b1d548bdf042102127b8bfce27fe341c8208690975cbde
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1559.001 Component Object Model Hijacking: DLL Side-Loading

The sample is a PDF file identified as malicious by ClamAV, specifically detecting 'Pdf.Exploit.Agent-36821'. Static analysis indicates the exploitation of CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms and LibTIFF images. The embedded URL, while seemingly benign, is part of the XFA template structure and likely used in the exploitation 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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