MALICIOUS
86
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The sample is a malformed PDF with a high ML classifier score, indicating malicious intent. It contains embedded JavaScript, suggesting an attempt to execute malicious code within a PDF reader. The malformed nature and lack of a standard object graph point towards an exploit or evasion technique rather than legitimate document content.
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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