General

  • Target
    KumoroClient Setup 1.0.0.exe
  • Size 108.1MB
  • Sample260620-yrwfvahs6p
  • SHA256 6556562366ef58ca07394b2e6920396baf98fed9512fe3a383d2f14bb6fe6a09
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      KumoroClient Setup 1.0.0.exe
    • Size 108.1MB
    • SHA256 6556562366ef58ca07394b2e6920396baf98fed9512fe3a383d2f14bb6fe6a09
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Windows security bypass

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to get system information.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Disables Task Manager via registry modification

    • Disables one or more Microsoft Defender components

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

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Checks installed software on the system

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

    • Looks up external IP address via web service

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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

MITRE ATT&CK Enterprise v16

Tasks