MALICIOUS
74
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF contains embedded JavaScript and utilizes ASCIIHexDecode and ASCII85Decode filters, which are common in exploit-laden documents. The ML classifier strongly indicates maliciousness, suggesting the JavaScript likely attempts to exploit a vulnerability or download a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 4
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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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ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
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