Malicious PDF — malware analysis report

Static analysis result for SHA-256 0894270950d061bb…

MALICIOUS

PDF

24.2 KB
MD5: 94ee93f0ab2a9e2a93ff515cf62d2653 SHA-1: 7af366194af4597363773317aa28d7c7da19b42d SHA-256: 0894270950d061bb972f5bf8f74dfa3fbc881cf3514700a7a2a0e4c41782ab92
162 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is identified as malicious by multiple heuristics, including a critical finding for CVE-2010-0188, which is an exploit targeting Adobe Reader's XFA form processing. The ML classifier also strongly indicates maliciousness. The embedded URL, while seemingly benign, is associated with XFA templates and could be part of the exploit chain.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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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