A new Ransomware as a Service, or RaaS, called Ransom32 has been discovered that for the first time uses a ransomware written in Javascript. Located on an underground TOR site, the service is a simple, but efficient, service where anyone can download and distribute their own copy of the ransomware. For offering this service, the developers take a 25% cut of all ransom payments and then forward the rest to the bitcoin address an affiliate entered when they joined the affiliate program.
Source: https://www.bleepingcomputer.com/news/security/ransom32-is-the-first-ransomware-written-in-javascript/