General

  • Target
    64rl14zt27ex5n17.exe
  • Size 808KB
  • Sample261113-vae6rady5m
  • SHA256 5196386596ba1e425822935bd59293e79f92a976235af59ef05412f48206dc2b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • gomorat

Version
  • 1.8

Botnet
  • t.me/junk_code

C2
  • gromkuki1242-36144.portmap.host:36144

Mutex
  • @junk_code

Attributes
  • antivirtual

    false

  • certificate

    51tfzcmopzvrrsjgxac3a20wk

  • delay_unit

    Hours

  • delay_value

    420

  • disk_spread

    false

  • enable_delay

    false

  • exclusion_wd

    true

  • hidden_file

    true

  • install

    true

  • install_watchdog

    true

  • key

    f2f64kvvlq9373kmc3oaqm5j

  • local_hosts

    0.0.0.0:31417

  • path_client

    %ProgramFiles%\junkSearch.exe

  • path_watchdog

    %Windows%\junkSearcher.exe

  • pump

    false

  • rootkit

    up2qd5buxgj

  • rootkit_type

    junkkit

  • task_client

    ShellHost

  • task_watchdog

    CookieManager

  • usb_spread

    true

  • use_install_admin

    true

  • user_init

    true

  • winlogon_shell_enable

    true

  • wmi_name

    WindowsDefender

  • wmi_startup

    true

Targets

    • Target
      64rl14zt27ex5n17.exe
    • Size 808KB
    • SHA256 5196386596ba1e425822935bd59293e79f92a976235af59ef05412f48206dc2b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: GomoRAT

      GomoRAT is a Windows RAT written in C#.

    • Modifies WinLogon for persistence

    • Boot or Logon Autostart Execution: Active Setup

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Modifies AppInit DLL entries

      Modifies the AppInit_DLLs registry setting, allowing a specified DLL to be loaded automatically into almost every Windows process across reboots.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • 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

    • Hide Artifacts: Hidden Files and Directories

MITRE ATT&CK Enterprise v16

Tasks