MALICIOUS
84
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF sample contains embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics. The JavaScript uses an unescape() call, a common technique for obfuscating malicious code, and the ASCIIHexDecode filter is also present. The script appears to be designed to download and execute a second-stage payload, as suggested by the embedded string 'CYsoVyap.swf'.
Heuristics 5
-
unescape() call high PDF_UNESCAPEunescape() found — often used to decode shellcode in PDF JS exploits
-
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEXHex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
-
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.
-
Embedded file low PDF_EMBEDDEDPDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
Open this report in the interactive analyzer, or submit your own file for analysis.