Understanding CloudTrail log file entries for IAM Identity Center

A trail is a configuration that enables delivery of events as log files to an Amazon S3 bucket that you specify. CloudTrail log files contain one or more log entries. An event represents a single request from any source and includes information about the requested action, the date and time of the action, request parameters, and so on. CloudTrail log files aren't an ordered stack trace of the public API calls, so they don't appear in any specific order.

The following example shows a CloudTrail log entry for an administrator (samadams@example.com) that took place in the IAM Identity Center console:

{
   "Records":[
      {
         "eventVersion":"1.05",
         "userIdentity":{
            "type":"IAMUser",
            "principalId":"AIDAJAIENLMexample",
            "arn":"arn:aws:iam::08966example:user/samadams",
            "accountId":"08966example",
            "accessKeyId":"AKIAIIJM2K4example",
            "userName":"samadams"
         },
         "eventTime":"2017-11-29T22:39:43Z",
         "eventSource":"sso.amazonaws.com",
         "eventName":"DescribePermissionsPolicies",
         "awsRegion":"us-east-1",
         "sourceIPAddress":"203.0.113.0",
         "userAgent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36",
         "requestParameters":{
            "permissionSetId":"ps-79a0dde74b95ed05"
         },
         "responseElements":null,
         "requestID":"319ac6a1-d556-11e7-a34f-69a333106015",
         "eventID":"a93a952b-13dd-4ae5-a156-d3ad6220b071",
         "readOnly":true,
         "resources":[

         ],
         "eventType":"AwsApiCall",
         "recipientAccountId":"08966example"
      }
   ]
}

The following example shows a CloudTrail log entry for an end-user (bobsmith@example.com) action that took place in the Amazon Web Services access portal:

{
   "Records":[
      {
         "eventVersion":"1.05",
         "userIdentity":{
            "type":"Unknown",
            "principalId":"example.com//S-1-5-21-1122334455-3652759393-4233131409-1126",
            "accountId":"08966example",
            "userName":"bobsmith@example.com"
         },
         "eventTime":"2017-11-29T18:48:28Z",
         "eventSource":"sso.amazonaws.com",
         "eventName":"ListApplications",
         "awsRegion":"us-east-1",
         "sourceIPAddress":"203.0.113.0",
         "userAgent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36",
         "requestParameters":null,
         "responseElements":null,
         "requestID":"de6c0435-ce4b-49c7-9bcc-bc5ed631ce04",
         "eventID":"e6e1f3df-9528-4c6d-a877-6b2b895d1f91",
         "eventType":"AwsApiCall",
         "recipientAccountId":"08966example"
      }
   ]
}

The following example shows a CloudTrail log entry for an end-user (bobsmith@example.com) action that took place in IAM Identity Center OIDC:

{
      "eventVersion": "1.05",
      "userIdentity": {
        "type": "Unknown",
        "principalId": "example.com//S-1-5-21-1122334455-3652759393-4233131409-1126",
        "accountId": "08966example",
        "userName": "bobsmith@example.com"
      },
      "eventTime": "2020-06-16T01:31:15Z",
      "eventSource": "sso.amazonaws.com",
      "eventName": "CreateToken",
      "awsRegion": "us-east-1",
      "sourceIPAddress": "203.0.113.0",
      "userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36",
      "requestParameters": {
        "clientId": "clientid1234example",
        "clientSecret": "HIDDEN_DUE_TO_SECURITY_REASONS",
        "grantType": "urn:ietf:params:oauth:grant-type:device_code",
        "deviceCode": "devicecode1234example"
      },
      "responseElements": {
        "accessToken": "HIDDEN_DUE_TO_SECURITY_REASONS",
        "tokenType": "Bearer",
        "expiresIn": 28800,
        "refreshToken": "HIDDEN_DUE_TO_SECURITY_REASONS",
        "idToken": "HIDDEN_DUE_TO_SECURITY_REASONS"
      },
      "eventID": "09a6e1a9-50e5-45c0-9f08-e6ef5089b262",
      "readOnly": false,
      "resources": [
        {
          "accountId": "08966example",
          "type": "IdentityStoreId",
          "ARN": "d-1234example"
        }
      ],
      "eventType": "AwsApiCall",
      "recipientAccountId": "08966example"
}