Two new ransomware-as-service (RaaS) programs have appeared on the threat radar this month, with one group professing to be a successor to DarkSide and REvil. They incorporated in itself the best features of DarkSide, REvil, and LockBit, the operators behind the new BlackMatter group said in their darknet forum

BlackMatter threat actor registered an account on Russian-language forums XSS and Exploit on July 19, quickly following it up with a post stating they are looking to purchase access to infected corporate networks comprising anywhere between 500 and 15,000 hosts in the U.S., Canada, Australia, and the U.K. and with revenues of over $100 million a year, potentially hinting at a large-scale ransomware operation.

The actor deposited 4BTC (approximately $150,000 USD) into their escrow account. Large deposits on the forum indicate the seriousness of the threat actor, BlackMatter does not openly state that they are a ransomware collective operator, which technically doesn’t break the rules of the forums, though the language of their post, as well as their goals clearly indicate that they are a ransomware collective operator.

The group is said to have begun actively recruiting partners and affiliates using Exploit forum’s Jabber server to promulgate their recruitment message, in which they claim to be looking for experienced penetration testers knowledgeable in Windows and Linux systems as well as initial access suppliers, who would either sell their access for a percentage of the profits.

The emergence of BlackMatter coincides with the demise of DarkSide and REvil in the wake of highly publicized ransomware incidents of Colonial Pipeline, JBS, and Kaseya, raising speculations that the groups may eventually rebrand and resurface under a new identity.

BlackMatter is not the only newcomer, South Korean security firm S2W Labs last week took the wraps off Haron, another latest entrant to the cybercrime ecosystem that made its appearance this month and heavily borrows from past ransomware variants such as Thanos and the now-discontinued Avaddon.