Moisha Ransomware
Intelligence Profile
Moisha is a .NET-based ransomware that employs double extortion techniques to encrypt and exfiltrate data from victims. Upon execution, it creates a global mutex to ensure only one instance of the malware runs on the affected system. It then stops services such as backup and antivirus to avoid interference during the encryption process. Moisha disables real-time protection in Microsoft Defender and removes shadow copies using PowerShell and Vssadmin. It encrypts files on the system using RSA and AES encryption algorithms and places a ransom note in the affected directory. The note instructs victims to contact the attackers via a Moisha ID on TOX Messenger to negotiate the ransom. Additionally, Moisha spreads to other machines on the network and self-deletes using PowerShell command line.
Threat Analysis
Moisha Ransomware is a high-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of financial.
Financially motivated threat actors like Moisha Ransomware prioritize monetary gain through methods such as ransomware deployment, banking trojans, cryptocurrency theft, BEC scams, or credential harvesting for resale on underground markets.
With high sophistication, Moisha Ransomware is capable of targeted intrusions using adapted commodity tools alongside custom implants, maintaining operational security and evading standard detection mechanisms.