General

  • Target

    RobloxPlayerInstaller.exe

  • Size

    5.3MB

  • Sample

    240530-zyvzbshh3t

  • MD5

    666f69bae6e56a62b7af6cb8496f677f

  • SHA1

    ae052de936deeebe5fb8d8c059eb84fa38707c4d

  • SHA256

    586adc8fe02d5ac562fbc338df3555732d9d0b77db7cad306aadec22447ce6f8

  • SHA512

    ee479171bf4dbc0b7d690202e0a6c09ba88cac1a1a34e4f115c9d0c65f1ca752cf3d180d6047fa1066da933a48e8cac070d4f1dceec8abfd8ee1ab3590ff50ee

  • SSDEEP

    98304:TYvoKhqqe2nun4wPPPJ+epgFnve4ryC+zEG1O1uFf:EZhPDMH3hgpQCkE6wKf

Malware Config

Targets

    • Target

      RobloxPlayerInstaller.exe

    • Size

      5.3MB

    • MD5

      666f69bae6e56a62b7af6cb8496f677f

    • SHA1

      ae052de936deeebe5fb8d8c059eb84fa38707c4d

    • SHA256

      586adc8fe02d5ac562fbc338df3555732d9d0b77db7cad306aadec22447ce6f8

    • SHA512

      ee479171bf4dbc0b7d690202e0a6c09ba88cac1a1a34e4f115c9d0c65f1ca752cf3d180d6047fa1066da933a48e8cac070d4f1dceec8abfd8ee1ab3590ff50ee

    • SSDEEP

      98304:TYvoKhqqe2nun4wPPPJ+epgFnve4ryC+zEG1O1uFf:EZhPDMH3hgpQCkE6wKf

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Downloads MZ/PE file

    • Drops desktop.ini file(s)

    • Sets file execution options in registry

    • Checks computer location settings

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

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks