MALICIOUS
138
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF file contains JavaScript actions and uses eval() to execute obfuscated code. This indicates an attempt to exploit a vulnerability within the PDF reader to achieve arbitrary code execution. The ML classifier strongly flags this as malicious. The specific JavaScript payload is heavily obfuscated, but the presence of eval() and exploit cluster heuristics strongly suggests it's designed to download and execute a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
Heuristics 3
-
PDF JavaScript exploit cluster critical PDF_JS_EXPLOIT_CLUSTERPDF combines an executable JavaScript/action surface with exploit staging indicators such as eval/unescape/fromCharCode, XFA script content, or a related CVE pattern. Benign form JavaScript remains low-severity, but this correlated cluster is high-confidence malicious behavior.
-
eval() call high PDF_EVALeval() found — commonly used for obfuscated exploit execution
-
JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Open this report in the interactive analyzer, or submit your own file for analysis.