General

  • Target

    d546328a43690c42bc768a5a07588bb43eb0a0962f5994b50fb5108156bc89ad.exe

  • Size

    2.1MB

  • Sample

    250118-fmz95avjgp

  • MD5

    ec5fdacecceee343335d6a686ce75864

  • SHA1

    965f210fa2eccd71a866908320cb92eb926b338d

  • SHA256

    d546328a43690c42bc768a5a07588bb43eb0a0962f5994b50fb5108156bc89ad

  • SHA512

    533713c84dfcd9d23ffb338d9dd5c237ef6151315037ed8477f91bd89bad02639ee9e936cfc2ea5098f2bbff9e565115b14f71e287297d11328cf9c030512a4c

  • SSDEEP

    49152:IBJi/YtO8s26Kzc1OpFAuD86cmG96kZTRc:ycoxd6Yc1+rXG3Rc

Malware Config

Targets

    • Target

      d546328a43690c42bc768a5a07588bb43eb0a0962f5994b50fb5108156bc89ad.exe

    • Size

      2.1MB

    • MD5

      ec5fdacecceee343335d6a686ce75864

    • SHA1

      965f210fa2eccd71a866908320cb92eb926b338d

    • SHA256

      d546328a43690c42bc768a5a07588bb43eb0a0962f5994b50fb5108156bc89ad

    • SHA512

      533713c84dfcd9d23ffb338d9dd5c237ef6151315037ed8477f91bd89bad02639ee9e936cfc2ea5098f2bbff9e565115b14f71e287297d11328cf9c030512a4c

    • SSDEEP

      49152:IBJi/YtO8s26Kzc1OpFAuD86cmG96kZTRc:ycoxd6Yc1+rXG3Rc

    • 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.

    • 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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks