One observation, and where it came from.
fin-034 wrote to ADMIN$ on fs-04 and dc-01 within forty seconds, authenticating as svc-deploy; it had contacted neither before
This observation is part of a written scenario. It did not come off a real network, and nothing on this deployment did.
{
"kind": "security",
"detection_type": "smb_admin_share_write",
"principal": "fin-034",
"source_address": null,
"asset": null,
"confidence": 0.97
}