Hermes

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

1. T1059.001 PowerShell Execution

   What they do: hermes uses PowerShell scripts to execute malicious commands during initial compromise.

   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: hermes modifies registry run keys to ensure persistence after reboot.

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

3. T1548.002 Bypass User Account Control Privilege Escalation

   What they do: hermes bypasses User Account Control checks to gain higher privileges.

   What that means: Adversaries may bypass UAC mechanisms to elevate process privileges on system.

4. T1685 Disable or Modify Tools Defense Impairment

   What they do: hermes disables security tools like antivirus software 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: hermes deletes Volume Shadow Copies and backup files 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: hermes scans file and directory structures to identify targets 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.

7. T1567.002 Exfiltration to Cloud Storage Exfiltration

   What they do: hermes exfiltrates victim data before encryption to increase ransom pressure.

   What that means: Adversaries may exfiltrate data to a cloud storage service rather than over their primary command and control channel.

8. T1486 Data Encrypted for Impact Impact

   What they do: hermes encrypts victim files using a custom ransomware payload to hold data hostage.

   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. T1489 Service Stop Impact

   What they do: hermes stops critical Windows services to disrupt system functionality.

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

10. T1490 Inhibit System Recovery Impact

    What they do: hermes executes commands to inhibit system recovery processes after encryption.

    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.