Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d98aba994708268…

MALICIOUS

PDF

31.8 KB
MD5: 8cb07c55d1fa481176b909b949f867cd SHA-1: 66b3b0d035fecf69f7c07dd4eedf29e9b8d75d66 SHA-256: 2d98aba99470826840ddd586f926eb0ba10148ca60c3a39730704e389e9b1baf
70 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains an XFA form, which is a known vector for exploiting vulnerabilities. ClamAV detected it as Js.Exploit.HTML-30, indicating the presence of malicious JavaScript. The embedded URL, while seemingly benign, is part of the exploit chain. The JavaScript likely attempts to download and execute a second-stage payload.

Heuristics 4

  • ClamAV: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • 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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