Sparta

MITRE ATT&CK does not currently catalogue Sparta, 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: sparta executes malicious commands via PowerShell scripts to stage ransomware payloads and evade detection.

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

2. T1106 Native API Execution

   What they do: sparta leverages native API calls to interact with system functions for file encryption and process manipulation.

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

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

   What they do: sparta modifies registry run keys and startup folders to ensure ransomware execution upon system reboot.

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

4. T1685 Disable or Modify Tools Defense Impairment

   What they do: sparta disables security tools like antivirus software and modifies system configurations to hinder incident response.

   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. T1688 Safe Mode Boot Defense Impairment

   What they do: sparta manipulates boot sequences and safe mode settings to evade host-based behavioral detection mechanisms.

   What that means: Adversaries may abuse Windows safe mode to disable endpoint defenses.

6. T1027.013 Encrypted/Encoded File Stealth

   What they do: sparta encrypts victim files with custom symmetric encryption routines to maximize impact and ransom demand.

   What that means: Adversaries may encrypt or encode files to obfuscate strings, bytes, and other specific patterns to impede detection.

7. T1070.004 File Deletion Stealth

   What they do: sparta deletes Volume Shadow Copies and backup directories using vssadmin and file deletion commands to eliminate recovery options.

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

8. T1057 Process Discovery Discovery

   What they do: sparta discovers running processes to identify critical services and isolate components for disruption.

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

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

   What they do: sparta uses SMB/Windows Admin Shares for lateral movement across networked victim machines within the organization.

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

10. T1486 Data Encrypted for Impact Impact

    What they do: sparta applies data encryption for impact across victim networks to ensure ransom payment through irreversible corruption.

    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.

11. T1489 Service Stop Impact

    What they do: sparta executes service stop commands to disrupt critical infrastructure services before deploying encryption.

    What that means: Adversaries may stop or disable services on a system to render those services unavailable to legitimate users.

12. T1490 Inhibit System Recovery Impact

    What they do: sparta invokes system recovery inhibition commands to prevent volume shadow copy restoration and data recovery.

    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.