Radiant

MITRE ATT&CK does not currently catalogue Radiant, 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: medium. Treat it as orientation, not attribution.

1. T1059.001 PowerShell Execution

   What they do: Radiant executes PowerShell scripts to stage ransomware payloads and manipulate system processes.

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

2. T1106 Native API Execution

   What they do: Radiant leverages native API calls to interact with Windows services and evade detection.

   What that means: Adversaries may interact with the native OS application programming interface (API) to execute behaviors.

3. T1112 Modify Registry PersistenceDefense Impairment

   What they do: Radiant modifies the Windows Registry to hide malicious processes and persistence mechanisms.

   What that means: Adversaries may interact with the Windows Registry as part of a variety of other techniques to aid in defense evasion, persistence, and execution.

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

   What they do: Radiant establishes persistence by modifying Registry Run Keys to ensure recurring execution.

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

5. T1685 Disable or Modify Tools Defense Impairment

   What they do: Radiant disables antivirus tools and security software to prevent system recovery attempts.

   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.

6. T1070.004 File Deletion Stealth

   What they do: Radiant deletes Volume Shadow Copies and backup files via vssadmin to eliminate recovery options.

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

7. T1083 File and Directory Discovery Discovery

   What they do: Radiant performs file and directory discovery to identify critical data and backup locations for encryption.

   What that means: Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system.

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

   What they do: Radiant spreads laterally through SMB/Windows Admin Shares to compromise additional networked hosts.

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

9. T1486 Data Encrypted for Impact Impact

   What they do: Radiant encrypts victim files using strong symmetric cryptography to maximize impact and extortion leverage.

   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.

10. T1490 Inhibit System Recovery Impact

    What they do: Radiant invokes Inhibit System Recovery techniques like disabling restore points and terminating recovery services.

    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.