General

  • Target

    CrackLauncher.exe

  • Size

    34.2MB

  • Sample

    240715-x5ql3svhpk

  • MD5

    47459c72e16d587d72f106421f46c620

  • SHA1

    784809d4e9b71f9da764d43835ff5436e80424ea

  • SHA256

    64e4ba2eff7e8abd6c738c4360079a3ced0a6d22e8935c2f8216d69b178075d3

  • SHA512

    a78537d5bbc8569a72d388e784b16fd280ffec1cde809e56b9785cae509daec1634d0eecfe8cc0cecae5206856c143e623f8696cce3ceccc140251e490c47bf7

  • SSDEEP

    786432:ieHWdpbJx2ecXKKhhN546VkZ74qNN/X9/ao/z40wmPTsm:ihbJxJcX5hhNibZ74qNN/td0r6Tsm

Malware Config

Targets

    • Target

      CrackLauncher.exe

    • Size

      34.2MB

    • MD5

      47459c72e16d587d72f106421f46c620

    • SHA1

      784809d4e9b71f9da764d43835ff5436e80424ea

    • SHA256

      64e4ba2eff7e8abd6c738c4360079a3ced0a6d22e8935c2f8216d69b178075d3

    • SHA512

      a78537d5bbc8569a72d388e784b16fd280ffec1cde809e56b9785cae509daec1634d0eecfe8cc0cecae5206856c143e623f8696cce3ceccc140251e490c47bf7

    • SSDEEP

      786432:ieHWdpbJx2ecXKKhhN546VkZ74qNN/X9/ao/z40wmPTsm:ihbJxJcX5hhNibZ74qNN/td0r6Tsm

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • UAC bypass

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • XMRig Miner payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Stops running service(s)

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

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

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

MITRE ATT&CK Enterprise v15

Tasks