Malicious PDF — malware analysis report

Static analysis result for SHA-256 d658e467616d1bb9…

MALICIOUS

PDF

24.0 KB
MD5: e71e36e5d0b64e07fdd47499c6d5e3d5 SHA-1: d7575103e00d51304f4983e444db052384a2879d SHA-256: d658e467616d1bb9bd1b15f067348ce8aedf248a20610d54d3b46f3c63c05185
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1059 Command and Scripting Interpreter

The sample is a PDF document identified as malicious by ClamAV, specifically flagged for exploiting CVE-2010-0188 via XFA forms. The embedded script logic, though obfuscated, suggests an attempt to construct a URL and potentially download a second-stage payload. The presence of an embedded URL further supports this attack vector.

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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