name: AWS CloudTrail InvokeModel
id: 5d92a1b6-3e78-4ff2-be83-7a4c01f9df6c
version: 2
creation_date: '2024-05-22'
modification_date: '2026-05-13'
author: Bhavin Patel, Splunk
description: Logs an event when a model is invoked within the AWS CloudTrail.
mitre_components:
    - Cloud Service Usage
source: aws_cloudtrail
sourcetype: aws:cloudtrail
separator: eventName
separator_value: InvokeModel
supported_TA:
    - name: Splunk Add-on for AWS
      url: https://splunkbase.splunk.com/app/1876
      version: 8.1.2
fields:
    - _time
    - action
    - app
    - awsRegion
    - aws_account_id
    - change_type
    - command
    - date_hour
    - date_mday
    - date_minute
    - date_month
    - date_second
    - date_wday
    - date_year
    - date_zone
    - direction
    - dvc
    - errorCode
    - eventCategory
    - eventID
    - eventName
    - eventSource
    - eventTime
    - eventType
    - eventVersion
    - eventtype
    - host
    - index
    - linecount
    - managementEvent
    - msg
    - object_category
    - product
    - protocol
    - protocol_code
    - punct
    - readOnly
    - recipientAccountId
    - region
    - requestID
    - requestParameters.modelId
    - responseElements.requestId
    - signature
    - source
    - sourceIPAddress
    - sourcetype
    - splunk_server
    - src
    - src_ip
    - src_ip_range
    - start_time
    - status
    - tag
    - tag::eventtype
    - timeendpos
    - timestartpos
    - user
    - userAgent
    - userIdentity.accessKeyId
    - userIdentity.accountId
    - userIdentity.arn
    - userIdentity.principalId
    - userIdentity.sessionContext.attributes.creationDate
    - userIdentity.sessionContext.attributes.mfaAuthenticated
    - userIdentity.sessionContext.sessionIssuer.accountId
    - userIdentity.sessionContext.sessionIssuer.arn
    - userIdentity.sessionContext.sessionIssuer.principalId
    - userIdentity.sessionContext.sessionIssuer.type
    - userIdentity.sessionContext.sessionIssuer.userName
    - userIdentity.type
    - userName
    - user_access_key
    - user_agent
    - user_arn
    - user_group_id
    - user_id
    - user_name
    - user_type
    - vendor
    - vendor_account
    - vendor_product
    - vendor_region
output_fields:
    - dest
    - user
    - user_agent
    - src
    - vendor_account
    - vendor_region
    - vendor_product
example_log: '{"eventVersion": "1.08", "userIdentity": {"type": "AssumedRole", "principalId": "AROAIJIESMXKGCJRCTPR6:user@example.com", "arn": "arn:aws:sts::111111111111:assumed-role/admin_role/user@example.com", "accountId": "111111111111", "accessKeyId": "ASIAYTOGP2RLXXXXXXXX", "sessionContext": {"sessionIssuer": {"type": "Role", "principalId": "AROAIJIESMXKGCJRCTPR6", "arn": "arn:aws:iam::111111111111:role/admin_role", "accountId": "111111111111", "userName": "admin_role"}, "webIdFederationData": {}, "attributes": {"mfaAuthenticated": "false", "creationDate": "2023-10-15T08:36:15Z"}}}, "eventTime": "2023-10-15T08:49:49Z", "eventSource": "bedrock.amazonaws.com", "eventName": "InvokeModel", "awsRegion": "us-east-1", "sourceIPAddress": "192.0.2.1", "userAgent": "aws-cli/2.9.15", "requestParameters": {"modelId": "anthropic.claude-v2"}, "responseElements": {"requestId": "97b40da9-9291-4a92-8e9e-892b6887ffc9"}, "requestID": "97b40da9-9291-4a92-8e9e-892b6887ffc9", "eventID": "46fe04b8-d007-4933-8bb8-c8b65c1121fa", "readOnly": false, "eventType": "AwsApiCall", "managementEvent": true, "eventCategory": "Management", "recipientAccountId": "111111111111"}'