MALICIOUS
86
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF exhibits malformed structure and contains embedded JavaScript, strongly indicating malicious intent. The ML classifier's high confidence score further supports this. The malformed nature suggests an attempt to evade standard PDF parsing and analysis.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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Malformed PDF header with no object graph high PDF_MALFORMED_NO_OBJECT_GRAPHFile starts with a PDF header but contains no indirect objects, xref table/stream, or startxref pointer. This is not a normal renderable PDF and can indicate parser fuzzing, evasion, or a corrupt exploit test case rather than benign content.
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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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