MALICIOUS
108
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF contains embedded JavaScript, triggered by an OpenAction, which is a common technique for delivering malicious payloads. The ML classifier strongly indicates maliciousness. While the specific JavaScript content is not detailed, its presence and the OpenAction trigger suggest an attempt to execute arbitrary code, likely for downloading and running a second-stage payload. The document body text is generic and does not provide specific lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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OpenAction trigger high PDF_OPENACTIONPDF has an /OpenAction that launches, submits, or opens an external target
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ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEXHex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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