D1R

MITRE ATT&CK does not currently catalogue D1R, 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. T1047 Windows Management Instrumentation Execution

   What they do: D1R uses Windows Management Instrumentation to execute malicious commands and deploy ransomware components silently.

   What that means: Adversaries may abuse Windows Management Instrumentation (WMI) to execute malicious commands and payloads.

2. T1059.001 PowerShell Execution

   What they do: D1R executes malicious commands using PowerShell scripts to stage payloads and manipulate system behavior.

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

3. T1112 Modify Registry PersistenceDefense Impairment

   What they do: D1R modifies Windows Registry Run keys to maintain persistence across reboots using hidden startup entries.

   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. T1685 Disable or Modify Tools Defense Impairment

   What they do: D1R disables security tools by modifying Windows Defender and antivirus service configurations 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.

5. T1070.004 File Deletion Stealth

   What they do: D1R deletes Volume Shadow Copies and recycle bins via vssadmin and command-line tools to prevent recovery.

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

6. T1083 File and Directory Discovery Discovery

   What they do: D1R uses file and directory discovery via PowerShell to enumerate user data and identify encryption targets.

   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.

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

   What they do: D1R moves laterally through SMB/Windows Admin Shares using stolen credentials to access additional networked systems.

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

8. T1486 Data Encrypted for Impact Impact

   What they do: D1R encrypts victim files using a custom ransomware algorithm targeting documents, images, and backups.

   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.

9. T1490 Inhibit System Recovery Impact

   What they do: D1R inhibits system recovery by corrupting restore points and disabling backup restoration mechanisms.

   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.

10. T1491.001 Internal Defacement Impact

    What they do: D1R performs internal defacement by appending ransom notes and altering file metadata across compromised systems.

    What that means: An adversary may deface systems internal to an organization in an attempt to intimidate or mislead users, thus discrediting the integrity of the systems.