Experienced network intruders and ransomware groups have struck an alliance helping each other monetize their skills by spreading malware to company networks. This mutually beneficial cooperation enables spreading file-encrypting malware even on more secure networks. One access-as-a-service provider works with multiple ransomware collectives, including REvil/Sodinokibi, offering them access to large targets. Both REvil and -TMT- are players in the big league that prosper from each other’s talents.
Source: https://www.bleepingcomputer.com/news/security/revil-ransomware-affiliates-partner-with-corporate-intruders/