Scarlettgroup

MITRE ATT&CK does not currently catalogue Scarlettgroup, 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 v20.0. Confidence: low. Treat it as orientation, not attribution.

1. T1059.001 PowerShell Execution

   What they do: Scarlettgroup executes malicious payloads using PowerShell scripts embedded within ransomware binaries.

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

2. T1685 Disable or Modify Tools Defense Impairment

   What they do: Scarlettgroup disables antivirus and monitoring tools by terminating security processes via registry modifications.

   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.

3. T1070.004 File Deletion Stealth

   What they do: Scarlettgroup 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.

4. T1110 Brute Force Credential Access

   What they do: Scarlettgroup brute-forces local accounts using password lists to gain initial access.

   What that means: Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.

5. T1083 File and Directory Discovery Discovery

   What they do: Scarlettgroup scans file systems and directories to identify critical data 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.

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

   What they do: Scarlettgroup moves laterally across networks by exploiting SMB/Windows Admin Shares.

   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: Scarlettgroup encrypts victim files using strong symmetric encryption algorithms to cause impact.

   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: Scarlettgroup halts system recovery processes by stopping critical Windows services and 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.