room155, also tracked as Vengeful Wolf and DarkGaboon, is a financially motivated intrusion cluster associated with phishing-led ransomware operations. The group has been observed sending phishing emails that deliver remote-access malware including Revenge RAT and XWorm, with follow-on activity intended to culminate in deployment of LockBit 3.0 for ransom. Reported tradecraft indicates room155 functions as an access-and-deployment actor rather than as an operator of its own public leak infrastructure. High-confidence reporting links the group to email-based initial access, use of commodity RATs for foothold and post-compromise control, and ransomware deployment objectives.
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