Resubmissions

25-02-2024 16:57

240225-vgczzahd4s 10

25-02-2024 16:54

240225-vexatsgd57 10

25-02-2024 16:51

240225-vc8abahc3x 10

24-02-2024 18:26

240224-w3nh9sbf3x 10

General

  • Target

    https://github.com/NotReal96/Malware/blob/master/MrsMajor.md

  • Sample

    240225-vexatsgd57

Malware Config

Targets

    • Target

      https://github.com/NotReal96/Malware/blob/master/MrsMajor.md

    • Modifies WinLogon for persistence

    • UAC bypass

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Possible privilege escalation attempt

    • Checks computer location settings

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

    • Executes dropped EXE

    • Modifies file permissions

    • Modifies system executable filetype association

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks