Maui

MITRE ATT&CK does not currently catalogue Maui, so this is our assessment of the techniques it uses, drawn from public reporting. The techniques themselves, and every "what that means" definition below, come from MITRE ATT&CK v19.2. Confidence: low. Treat it as orientation, not attribution.

1. T1059.001 PowerShell Execution

   What they do: maui executes PowerShell scripts to stage initial compromise and post-exploitation commands.

   What that means: Adversaries may abuse PowerShell commands and scripts for execution.

2. T1547.001 Registry Run Keys / Startup Folder PersistencePrivilege Escalation

   What they do: maui modifies registry run keys to ensure persistence across reboots.

   What that means: Adversaries may achieve persistence by adding a program to a startup folder or referencing it with a Registry run key.

3. T1685 Disable or Modify Tools Defense Impairment

   What they do: maui disables antivirus tools and security monitoring utilities to evade detection.

   What that means: Adversaries may disable, degrade, or tamper with security tools or applications (e.g., endpoint detection and response (EDR) tools, intrusion detection systems (IDS), antivirus, logging agents, sensors, etc.) to impair or reduce visibility of defensive capabilities.

4. T1070.004 File Deletion Stealth

   What they do: maui deletes Volume Shadow Copies and backup directories to prevent data recovery.

   What that means: Adversaries may delete files left behind by the actions of their intrusion activity.

5. T1057 Process Discovery Discovery

   What they do: maui uses process discovery to identify running services and critical system processes for targeting.

   What that means: Adversaries may attempt to get information about running processes on a system.

6. T1021.002 SMB/Windows Admin Shares Lateral Movement

   What they do: maui exploits SMB/Windows Admin Shares to move laterally across networked hosts.

   What that means: Adversaries may use Valid Accounts to interact with a remote network share using Server Message Block (SMB).

7. T1486 Data Encrypted for Impact Impact

   What they do: maui encrypts victim files using a custom ransomware payload to hold data hostage.

   What that means: Adversaries may encrypt data on target systems or on large numbers of systems in a network to interrupt availability to system and network resources.

8. T1490 Inhibit System Recovery Impact

   What they do: maui invokes system recovery processes to inhibit backup restoration and enforcement actions.

   What that means: Adversaries may delete or remove built-in data and turn off services designed to aid in the recovery of a corrupted system to prevent recovery.

+27 more wallets not shown (the 12 largest by amount received are listed).

Crowdsourced payment data from Ransomwhere, licensed CC BY 4.0. Figures are what has been reported and attributed to this family, not a confirmed total. Cite as: Cable, Jack. (2024). Ransomwhere: A Crowdsourced Ransomware Payment Dataset (1.1.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.6512122