MALICIOUS
206
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious JavaScript
The PDF file contains embedded JavaScript that utilizes an eval() call, a common technique for obfuscating malicious code. This JavaScript is flagged as part of an exploit cluster and is highly correlated with malicious behavior by a machine learning classifier. The primary function appears to be the execution of arbitrary JavaScript, likely to download and execute a secondary payload. No specific family could be identified.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
-
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.
-
Correlated malicious PDF JavaScript signals critical PDF_CORRELATED_MALICIOUS_JSPDF JavaScript or auto-action content is corroborated by exploit staging, ML, or suspicious extracted-artifact findings. This correlation promotes old exploit-kit PDFs that otherwise remain in the suspicious band because each individual signal is intentionally weighted conservatively.
-
eval() call high PDF_EVALeval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
-
JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
-
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.
Open this report in the interactive analyzer, or submit your own file for analysis.