Malware
Starfighter
According to the author, this is a JavaScript based Empire launcher that runs with its own embedded powershell host to not be dependent on local powershell availability.
Starfighter is a JavaScript malware family.
Background
Per its author, Starfighter is a JavaScript-based Empire launcher that ships with its own built-in PowerShell host so it does not have to depend on PowerShell being present locally.
Source: Malpedia (Fraunhofer FKIE).