Malicious PDF — malware analysis report

Static analysis result for SHA-256 780c93963896742c…

MALICIOUS

PDF

24.0 KB
MD5: e7aac496ea142973fb4d8fdb1b0e7b6b SHA-1: ef0f9a3b739aa1a7208acda11c56b274ec7da677 SHA-256: 780c93963896742c1e6481912c0d00df6ddafd69de23b388d9474f0de8f68918
162 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by multiple engines, including ClamAV. It contains XFA (XML Forms Architecture) data and exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of LibTIFF images within XFA forms, to achieve client-side code execution. The embedded URL is likely related to the XFA template schema.

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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