Mirax is a newly identified Android Remote Access Trojan operating as Malware-as-a-Service, actively targeting European users, particularly in Spanish-speaking regions. Distributed through Meta advertisements and GitHub-hosted droppers, the malware has reached over 200,000 accounts. It employs sophisticated techniques including dynamically fetched HTML overlays, comprehensive keylogging, and remote device control capabilities. A distinctive feature is its integration of SOCKS5-based residential proxy functionality, transforming infected devices into proxy nodes that enable attackers to route traffic through legitimate residential IP addresses. This capability allows operators to bypass geolocation restrictions and evade fraud detection systems while conducting account takeovers and transaction fraud. The malware uses commercial-grade obfuscation through Golden Encryption and establishes persistence through Accessibility Service abuse.