General

  • Target

    408d3ec50e5bc7acbc10157fc08b995578ab30c975e9567b5ad9708cc8a7f09b.exe

  • Size

    2.7MB

  • Sample

    240522-1czk3ahe3s

  • MD5

    2317326f5c2ec4b53d5071d19f1a5690

  • SHA1

    384f47f21bd2dc1a67b80a5dcee9430f43bee08b

  • SHA256

    408d3ec50e5bc7acbc10157fc08b995578ab30c975e9567b5ad9708cc8a7f09b

  • SHA512

    98719abb8a334d96ecbd56450d2f55bd15a830ffb1ac516c79c0028f66f348f6b7389f5caf197615e0cd56a353299054ddc5159eb77b1f83c411012a9ac9b246

  • SSDEEP

    49152:qH64y2XDuLlIY14o9/yDzr1xJ8XbRrC9mWvR08Yv7yP3GcY:qHfE5Ad8Xd295UmGc

Malware Config

Targets

    • Target

      408d3ec50e5bc7acbc10157fc08b995578ab30c975e9567b5ad9708cc8a7f09b.exe

    • Size

      2.7MB

    • MD5

      2317326f5c2ec4b53d5071d19f1a5690

    • SHA1

      384f47f21bd2dc1a67b80a5dcee9430f43bee08b

    • SHA256

      408d3ec50e5bc7acbc10157fc08b995578ab30c975e9567b5ad9708cc8a7f09b

    • SHA512

      98719abb8a334d96ecbd56450d2f55bd15a830ffb1ac516c79c0028f66f348f6b7389f5caf197615e0cd56a353299054ddc5159eb77b1f83c411012a9ac9b246

    • SSDEEP

      49152:qH64y2XDuLlIY14o9/yDzr1xJ8XbRrC9mWvR08Yv7yP3GcY:qHfE5Ad8Xd295UmGc

    • 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

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Command and Scripting Interpreter: PowerShell

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

    • Checks whether UAC is enabled

MITRE ATT&CK Enterprise v15

Tasks