Malicious PDF — malware analysis report

Static analysis result for SHA-256 34ecb458fc4d2b37…

MALICIOUS

PDF

29.4 KB
MD5: 210cb14a91786aed1e8013540bc233c2 SHA-1: 86a09fe939899ecd63f939bd9ff9cb8268fc5730 SHA-256: 34ecb458fc4d2b37d95c53ea0824055380f4f8a4d1e5c3d6c425a84e59e3f425
100 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains XFA form elements and triggers a critical ClamAV detection for Js.Exploit.HTML-30, indicating it is designed to exploit vulnerabilities. The embedded URL, while seemingly benign, is part of the exploit chain. The obfuscated JavaScript within the document body likely attempts to download and execute a second-stage payload, a common technique for PDF-based malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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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