General

  • Target

    Nixware.exe

  • Size

    2.7MB

  • Sample

    250123-se1l5stkc1

  • MD5

    d07543cb1bc6f660adcb7107ab33f270

  • SHA1

    8421ed19516a2152e4a53d694179107f3ef585c0

  • SHA256

    be08dac8fc827b41b19be240140f13e19a802e6c6108105cc303a873c57a20c4

  • SHA512

    03b6e377af1022d298aeac70c779b621cb5c0e636874e7739fa7ad30b1d64a08a16429719f89dcd0122f8b7309b20708672f8da32577e0265c3c8b34bae2add0

  • SSDEEP

    49152:GB7nRsoz7nIZgHltNj/VImvhIudDXtNHUxQ:Y7nq27nIENjqihIerHUxQ

Malware Config

Targets

    • Target

      Nixware.exe

    • Size

      2.7MB

    • MD5

      d07543cb1bc6f660adcb7107ab33f270

    • SHA1

      8421ed19516a2152e4a53d694179107f3ef585c0

    • SHA256

      be08dac8fc827b41b19be240140f13e19a802e6c6108105cc303a873c57a20c4

    • SHA512

      03b6e377af1022d298aeac70c779b621cb5c0e636874e7739fa7ad30b1d64a08a16429719f89dcd0122f8b7309b20708672f8da32577e0265c3c8b34bae2add0

    • SSDEEP

      49152:GB7nRsoz7nIZgHltNj/VImvhIudDXtNHUxQ:Y7nq27nIENjqihIerHUxQ

    • 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