General

  • Target

    launcher.exe.bin.exe

  • Size

    7.2MB

  • Sample

    250110-rn14laynhn

  • MD5

    ff391ed9e21485241544944ec6f4a3f0

  • SHA1

    bd7b5ce885c4684e05c1e937e46e9ef4ad06548c

  • SHA256

    619ce969d1ec179adf72a87b08468986fa2cb537229a5e8fd03d00856f502200

  • SHA512

    b9e9beffde62433911ac96fa3461f5c453dc10c6c760d2a7aa6df04573d1661d064cdcbe49507cecd59238410a671e1aeebf2858235ec9a31b91b5891203d5eb

  • SSDEEP

    98304:MHAnOWlogrB1cyZ/KHH3+nnE6ohJMWLXfdYzOn5BNNARHjdSC8BHeqz:MHADlogrBayZ/K02hJuc4RZV8FeM

Malware Config

Targets

    • Target

      launcher.exe.bin.exe

    • Size

      7.2MB

    • MD5

      ff391ed9e21485241544944ec6f4a3f0

    • SHA1

      bd7b5ce885c4684e05c1e937e46e9ef4ad06548c

    • SHA256

      619ce969d1ec179adf72a87b08468986fa2cb537229a5e8fd03d00856f502200

    • SHA512

      b9e9beffde62433911ac96fa3461f5c453dc10c6c760d2a7aa6df04573d1661d064cdcbe49507cecd59238410a671e1aeebf2858235ec9a31b91b5891203d5eb

    • SSDEEP

      98304:MHAnOWlogrB1cyZ/KHH3+nnE6ohJMWLXfdYzOn5BNNARHjdSC8BHeqz:MHADlogrBayZ/K02hJuc4RZV8FeM

    • DcRat

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

    • Dcrat family

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

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

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Disables Task Manager via registry modification

    • Sets service image path in registry

    • Stops running service(s)

    • Checks computer location settings

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

    • 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.

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks