General

  • Target
    lvrium_loader.exe
  • Size 344KB
  • Sample260626-wf87fsds6w
  • SHA256 01b7656262ae2491b235b7b842a16826007d8e6d5a200be943d5dfa47ce4b95d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      lvrium_loader.exe
    • Size 344KB
    • SHA256 01b7656262ae2491b235b7b842a16826007d8e6d5a200be943d5dfa47ce4b95d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Modifies WinLogon for persistence

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Adds policy Run key to start application

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Boot or Logon Autostart Execution: Port Monitors

      Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    • Event Triggered Execution: Image File Execution Options Injection

    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

    • Executes dropped EXE

    • Registers new Windows logon scripts automatically executed at logon.

    • Stops running service(s)

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks