MALICIOUS
100
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The file is a PDF containing XFA form elements and embedded JavaScript, as indicated by the PDF_XFA heuristic and the ML_NYX_PDF_MALICIOUS classifier. ClamAV detected it as Js.Exploit.HTML-30, suggesting an exploit targeting JavaScript. The embedded JavaScript, although obfuscated, appears to be constructing a string and attempting to execute it, likely to download and run a secondary payload from the known malicious URL. The PDF_DIFFERENTIAL_PARSE_FAILED heuristic indicates potential obfuscation or structural anomalies.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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ClamAV: Js.Exploit.HTML-30 critical CLAMAV_DETECTIONClamAV detected this file as malware: Js.Exploit.HTML-30
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XFA form low PDF_XFAPDF uses XML Forms Architecture — can contain script logic
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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe 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.
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Embedded URL info EMBEDDED_URLOne 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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