I think the Windows Event ID 4724 was the one indicating a privileged user changing a password for someone. If the auditing was set correctly on the source (Audit account management), QRadar sould have it recognized and the payload and normalized fileds should show the username doing the change and the target username (In our lab -> Event: Success Audit: An attempt was made to reset an account's password; Category: Password Change Succeeded; QID: 5000895)
#QRadar#Support#SupportMigration