As many as 130 different ransomware families have been found to be active in 2020 and the first half of 2021. Israel, South Korea, Vietnam, China, Singapore, India, Kazakhstan, Philippines, Iran, and the U.K. are the most affected territories. The GandCrab ransomware-as-a-service (RaaS) group (78.5%), followed by Babuk (7.61%), Cerber (3.11%), Matsnu (2.63%), Wannacry, Locky (1.41%), Locky, and Reveon (0.70%) are also active.”]
Source: https://thehackernews.com/2021/10/virustotal-releases-ransomware-report.html