Data Source: AWS CloudTrail GetObject

Date: 2024-07-18

ID: 5063cb10-84c0-44af-ade4-ab9ecad11dfe

Author: Patrick Bareiss, Splunk

Description

Data source object for AWS CloudTrail GetObject

Details

Property Value
Source aws_cloudtrail
Sourcetype aws:cloudtrail
Separator eventName

Supported Apps

Event Fields

+ Fields 
  <span class="pill kill-chain">_time</span>
  
  <span class="pill kill-chain">additionalEventData.AuthenticationMethod</span>
  
  <span class="pill kill-chain">additionalEventData.CipherSuite</span>
  
  <span class="pill kill-chain">additionalEventData.SignatureVersion</span>
  
  <span class="pill kill-chain">additionalEventData.bytesTransferredIn</span>
  
  <span class="pill kill-chain">additionalEventData.bytesTransferredOut</span>
  
  <span class="pill kill-chain">additionalEventData.x-amz-id-2</span>
  
  <span class="pill kill-chain">app</span>
  
  <span class="pill kill-chain">awsRegion</span>
  
  <span class="pill kill-chain">aws_account_id</span>
  
  <span class="pill kill-chain">command</span>
  
  <span class="pill kill-chain">date_hour</span>
  
  <span class="pill kill-chain">date_mday</span>
  
  <span class="pill kill-chain">date_minute</span>
  
  <span class="pill kill-chain">date_month</span>
  
  <span class="pill kill-chain">date_second</span>
  
  <span class="pill kill-chain">date_wday</span>
  
  <span class="pill kill-chain">date_year</span>
  
  <span class="pill kill-chain">date_zone</span>
  
  <span class="pill kill-chain">dest</span>
  
  <span class="pill kill-chain">dvc</span>
  
  <span class="pill kill-chain">errorCode</span>
  
  <span class="pill kill-chain">eventCategory</span>
  
  <span class="pill kill-chain">eventID</span>
  
  <span class="pill kill-chain">eventName</span>
  
  <span class="pill kill-chain">eventSource</span>
  
  <span class="pill kill-chain">eventTime</span>
  
  <span class="pill kill-chain">eventType</span>
  
  <span class="pill kill-chain">eventVersion</span>
  
  <span class="pill kill-chain">host</span>
  
  <span class="pill kill-chain">index</span>
  
  <span class="pill kill-chain">linecount</span>
  
  <span class="pill kill-chain">managementEvent</span>
  
  <span class="pill kill-chain">msg</span>
  
  <span class="pill kill-chain">object_category</span>
  
  <span class="pill kill-chain">product</span>
  
  <span class="pill kill-chain">punct</span>
  
  <span class="pill kill-chain">readOnly</span>
  
  <span class="pill kill-chain">recipientAccountId</span>
  
  <span class="pill kill-chain">region</span>
  
  <span class="pill kill-chain">requestID</span>
  
  <span class="pill kill-chain">requestParameters.Host</span>
  
  <span class="pill kill-chain">requestParameters.bucketName</span>
  
  <span class="pill kill-chain">requestParameters.key</span>
  
  <span class="pill kill-chain">requestParameters.x-amz-request-payer</span>
  
  <span class="pill kill-chain">resources{}.ARN</span>
  
  <span class="pill kill-chain">resources{}.accountId</span>
  
  <span class="pill kill-chain">resources{}.type</span>
  
  <span class="pill kill-chain">responseElements</span>
  
  <span class="pill kill-chain">signature</span>
  
  <span class="pill kill-chain">source</span>
  
  <span class="pill kill-chain">sourceIPAddress</span>
  
  <span class="pill kill-chain">sourcetype</span>
  
  <span class="pill kill-chain">splunk_server</span>
  
  <span class="pill kill-chain">src</span>
  
  <span class="pill kill-chain">src_ip</span>
  
  <span class="pill kill-chain">start_time</span>
  
  <span class="pill kill-chain">timeendpos</span>
  
  <span class="pill kill-chain">timestartpos</span>
  
  <span class="pill kill-chain">tlsDetails.cipherSuite</span>
  
  <span class="pill kill-chain">tlsDetails.clientProvidedHostHeader</span>
  
  <span class="pill kill-chain">tlsDetails.tlsVersion</span>
  
  <span class="pill kill-chain">user</span>
  
  <span class="pill kill-chain">userAgent</span>
  
  <span class="pill kill-chain">userIdentity.accessKeyId</span>
  
  <span class="pill kill-chain">userIdentity.accountId</span>
  
  <span class="pill kill-chain">userIdentity.arn</span>
  
  <span class="pill kill-chain">userIdentity.principalId</span>
  
  <span class="pill kill-chain">userIdentity.type</span>
  
  <span class="pill kill-chain">userIdentity.userName</span>
  
  <span class="pill kill-chain">userName</span>
  
  <span class="pill kill-chain">user_access_key</span>
  
  <span class="pill kill-chain">user_agent</span>
  
  <span class="pill kill-chain">user_arn</span>
  
  <span class="pill kill-chain">user_group_id</span>
  
  <span class="pill kill-chain">user_id</span>
  
  <span class="pill kill-chain">user_name</span>
  
  <span class="pill kill-chain">user_type</span>
  
  <span class="pill kill-chain">vendor</span>
  
  <span class="pill kill-chain">vendor_account</span>
  
  <span class="pill kill-chain">vendor_product</span>
  
  <span class="pill kill-chain">vendor_region</span>
  
</div>

Example Log

1{"eventVersion": "1.08", "userIdentity": {"type": "IAMUser", "principalId": "AIDAYTOGP2RLCNEAQXWZV", "arn": "arn:aws:iam::111111111111:user/console", "accountId": "111111111111", "accessKeyId": "AKIAYTOGP2RLF5EAXXXX", "userName": "console"}, "eventTime": "2023-04-11T01:18:47Z", "eventSource": "s3.amazonaws.com", "eventName": "GetObject", "awsRegion": "us-west-2", "sourceIPAddress": "12.26.0.38", "userAgent": "[aws-cli/2.11.2 Python/3.11.2 Darwin/22.3.0 exe/x86_64 prompt/off command/s3.cp]", "requestParameters": {"bucketName": "security-content", "Host": "security-content.s3.us-west-2.amazonaws.com", "x-amz-request-payer": "requester", "key": "stories/windows_discovery_techniques.yml"}, "responseElements": null, "additionalEventData": {"SignatureVersion": "SigV4", "CipherSuite": "ECDHE-RSA-AES128-GCM-SHA256", "bytesTransferredIn": 0, "AuthenticationMethod": "AuthHeader", "x-amz-id-2": "dcha0yrujT+O4FHsYxHx48KxMk4+wtO7MaNRwFOFs46R1PynKWcCsbLScYEFytN+Vt35hyq1cek=", "bytesTransferredOut": 1136}, "requestID": "GVSEBM08Z93FB3BT", "eventID": "2b7231c2-892d-464e-8880-1e4f81ae7eb2", "readOnly": true, "resources": [{"type": "AWS::S3::Object", "ARN": "arn:aws:s3:::security-content/stories/windows_discovery_techniques.yml"}, {"accountId": "111111111111", "type": "AWS::S3::Bucket", "ARN": "arn:aws:s3:::security-content"}], "eventType": "AwsApiCall", "managementEvent": false, "recipientAccountId": "111111111111", "eventCategory": "Data", "tlsDetails": {"tlsVersion": "TLSv1.2", "cipherSuite": "ECDHE-RSA-AES128-GCM-SHA256", "clientProvidedHostHeader": "security-content.s3.us-west-2.amazonaws.com"}}

Source: GitHub | Version: 1