Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4f38dfce295e3d2…

MALICIOUS

PDF

24.1 KB
MD5: ff5803afce963efbd17d3d7379929447 SHA-1: f8457d0b5269ec68583411f268cea9c96b524966 SHA-256: b4f38dfce295e3d280f30fffece4ef7bf1905ae61f7ba6b4befca7303445204f
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that contains an XFA form and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. The embedded script, although obfuscated, appears to be JavaScript intended to download and execute a secondary payload from the provided URL. ClamAV also detected this file as malware, specifically Pdf.Exploit.Agent-36821.

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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