Ransombay

MITRE ATT&CK does not currently catalogue Ransombay, 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: ransombay uses PowerShell to execute malicious payloads and stage ransomware operations on compromised hosts.

   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: ransombay modifies Registry Run Keys to establish persistence and ensure recurring execution after 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: ransombay disables security tools like antivirus software to evade detection and ensure successful encryption.

   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: ransombay deletes Volume Shadow Copies and backup files via vssadmin to prevent recovery and increase impact.

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

5. T1003.001 LSASS Memory Credential Access

   What they do: ransombay accesses LSASS memory using tools like Mimikatz to steal credentials for lateral movement.

   What that means: Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).

6. T1049 System Network Connections Discovery Discovery

   What they do: ransombay queries system network connections to map active services and identify high-value targets.

   What that means: Adversaries may attempt to get a listing of network connections to or from the compromised system they are currently accessing or from remote systems by querying for information over the network.

7. T1135 Network Share Discovery Discovery

   What they do: ransombay discovers network shares to identify additional victims for lateral movement and data targeting.

   What that means: Adversaries may look for folders and drives shared on remote systems as a means of identifying sources of information to gather as a precursor for Collection and to identify potential systems of interest for Lateral Movement.

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

   What they do: ransombay uses SMB/Windows Admin Shares to propagate ransomware across networked systems efficiently.

   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: ransombay encrypts victim files using strong symmetric cryptography to maximize disruption 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: ransombay calls system recovery mechanisms to inhibit restoration attempts and lock down affected environments.

    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.