The submitter relationship returns the user who submitted the analysis.

This relationship can be retrieved by using the relationships API endpoint. The response contains a users object.

{
  "data": {
    <OBJECT>
  },
  "links": {
    "self": "<string>"
  },
  "meta": {
    "count": 1
  }
}

{
	"meta": {
		"count": 1
	},
	"data": {
		"attributes": {
			"status": "active",
			"first_name": "Wile E.",
			"profile_phrase": "",
			"last_name": "Coyote",
			"reputation": 1
		},
		"type": "user",
		"id": "wcoyote",
		"links": {
			"self": "https://www.virustotal.com/api/v3/users/wcoyote"
		}
	},
	"links": {
		"self": "https://www.virustotal.com/api/v3/private/analyses/ZmI5Y2VmNGJmZDIwZTkzNmQ5MzY0NTcwMGI2Nzc2M2Q6Y2Y1MjY5YjZkMThlMWUwNWUyNGU0ZTBhN2M2ZjdlOWU6MTY2NjE3MDIyMg==/submitter"
	}
}