Data Source: G Suite Gmail

Description

Logs Gmail activities in G Suite, including email sending, receiving, and access details, as well as potential security-related events.

Details

Property Value
Source http:gsuite
Sourcetype gsuite:gmail:bigquery
Name ▲▼ Technique ▲▼ Type ▲▼
GSuite Email Suspicious Attachment Spearphishing Attachment Anomaly
Gsuite Email Suspicious Subject With Attachment Spearphishing Attachment Anomaly
Gsuite Email With Known Abuse Web Service Link Spearphishing Attachment Anomaly
Gsuite Outbound Email With Attachment To External Domain Exfiltration Over Unencrypted Non-C2 Protocol Hunting

Supported Apps

Event Fields

+ Fields
  <span class="pill kill-chain">_time</span>
  
  <span class="pill kill-chain">action_type</span>
  
  <span class="pill kill-chain">attachment{}.file_extension_type</span>
  
  <span class="pill kill-chain">attachment{}.malware_family</span>
  
  <span class="pill kill-chain">attachment{}.sha256</span>
  
  <span class="pill kill-chain">connection_info.authenticated_domain{}.name</span>
  
  <span class="pill kill-chain">connection_info.authenticated_domain{}.type</span>
  
  <span class="pill kill-chain">connection_info.client_host_zone</span>
  
  <span class="pill kill-chain">connection_info.client_ip</span>
  
  <span class="pill kill-chain">connection_info.dkim_pass</span>
  
  <span class="pill kill-chain">connection_info.dmarc_pass</span>
  
  <span class="pill kill-chain">connection_info.dmarc_published_domain</span>
  
  <span class="pill kill-chain">connection_info.ip_geo_city</span>
  
  <span class="pill kill-chain">connection_info.ip_geo_country</span>
  
  <span class="pill kill-chain">connection_info.is_internal</span>
  
  <span class="pill kill-chain">connection_info.is_intra_domain</span>
  
  <span class="pill kill-chain">connection_info.smtp_in_connect_ip</span>
  
  <span class="pill kill-chain">connection_info.smtp_out_connect_ip</span>
  
  <span class="pill kill-chain">connection_info.smtp_out_remote_host</span>
  
  <span class="pill kill-chain">connection_info.smtp_reply_code</span>
  
  <span class="pill kill-chain">connection_info.smtp_response_reason</span>
  
  <span class="pill kill-chain">connection_info.smtp_tls_cipher</span>
  
  <span class="pill kill-chain">connection_info.smtp_tls_state</span>
  
  <span class="pill kill-chain">connection_info.smtp_tls_version</span>
  
  <span class="pill kill-chain">connection_info.smtp_user_agent_ip</span>
  
  <span class="pill kill-chain">connection_info.spf_pass</span>
  
  <span class="pill kill-chain">connection_info.tls_required_but_unavailable</span>
  
  <span class="pill kill-chain">description</span>
  
  <span class="pill kill-chain">destination{}.address</span>
  
  <span class="pill kill-chain">destination{}.rcpt_response</span>
  
  <span class="pill kill-chain">destination{}.selector</span>
  
  <span class="pill kill-chain">destination{}.service</span>
  
  <span class="pill kill-chain">destination{}.smime_decryption_success</span>
  
  <span class="pill kill-chain">destination{}.smime_extraction_success</span>
  
  <span class="pill kill-chain">destination{}.smime_parsing_success</span>
  
  <span class="pill kill-chain">destination{}.smime_signature_verification_success</span>
  
  <span class="pill kill-chain">eventtype</span>
  
  <span class="pill kill-chain">flattened_destinations</span>
  
  <span class="pill kill-chain">flattened_triggered_rule_info</span>
  
  <span class="pill kill-chain">host</span>
  
  <span class="pill kill-chain">index</span>
  
  <span class="pill kill-chain">is_policy_check_for_sender</span>
  
  <span class="pill kill-chain">is_spam</span>
  
  <span class="pill kill-chain">linecount</span>
  
  <span class="pill kill-chain">message_set{}.type</span>
  
  <span class="pill kill-chain">num_message_attachments</span>
  
  <span class="pill kill-chain">payload_size</span>
  
  <span class="pill kill-chain">punct</span>
  
  <span class="pill kill-chain">rfc2822_message_id</span>
  
  <span class="pill kill-chain">smime_content_type</span>
  
  <span class="pill kill-chain">smime_encrypt_message</span>
  
  <span class="pill kill-chain">smime_extraction_success</span>
  
  <span class="pill kill-chain">smime_packaging_success</span>
  
  <span class="pill kill-chain">smime_sign_message</span>
  
  <span class="pill kill-chain">smtp_relay_error</span>
  
  <span class="pill kill-chain">source</span>
  
  <span class="pill kill-chain">source.address</span>
  
  <span class="pill kill-chain">source.from_header_address</span>
  
  <span class="pill kill-chain">source.from_header_displayname</span>
  
  <span class="pill kill-chain">source.selector</span>
  
  <span class="pill kill-chain">source.service</span>
  
  <span class="pill kill-chain">sourcetype</span>
  
  <span class="pill kill-chain">spam_info</span>
  
  <span class="pill kill-chain">splunk_server</span>
  
  <span class="pill kill-chain">structured_policy_log_info</span>
  
  <span class="pill kill-chain">subject</span>
  
  <span class="pill kill-chain">tag</span>
  
  <span class="pill kill-chain">tag::eventtype</span>
  
  <span class="pill kill-chain">timestamp</span>
  
  <span class="pill kill-chain">upload_error_category</span>
  
</div>

Example Log

1{"action_type": 10, "rfc2822_message_id": "<CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC@mail.gmail.com>", "subject": "New Order DHL0000001 - Dummy email for Detection Development", "payload_size": 6733, "source": {"address": "john@external_test_email.com", "service": "gmail-for-work", "selector": "policy", "from_header_address": "john@external_test_email.com", "from_header_displayname": "john smith"}, "destination": [{"address": "peter@internal_test_email.com", "service": "smtp-outbound", "selector": "gmail-for-work", "smime_signature_verification_success": null, "smime_decryption_success": null, "smime_parsing_success": null, "smime_extraction_success": null, "rcpt_response": null}], "flattened_destinations": "smtp-outbound:gmail-for-work:peter@internal_test_email.com", "description": "", "connection_info": {"client_ip": "null", "smtp_in_connect_ip": null, "smtp_out_connect_ip": "null", "failed_smtp_out_connect_ip": [], "smtp_tls_state": 1, "smtp_reply_code": 250, "tls_required_but_unavailable": false, "smtp_out_remote_host": "internal_test_app.com", "smtp_user_agent_ip": "null", "is_intra_domain": false, "dmarc_pass": null, "dmarc_published_domain": null, "client_host_zone": null, "smtp_response_reason": null, "ip_geo_city": null, "ip_geo_country": null, "authenticated_domain": [{"name": "internal_test_email.com", "type": 2}, {"name": "internal_test_email.com", "type": 6}, {"name": "internal_test_email.com", "type": 1}], "is_internal": false, "dkim_pass": true, "spf_pass": true, "smtp_tls_version": "TLSv9.9", "smtp_tls_cipher": "TLS_AES"}, "is_spam": null, "is_policy_check_for_sender": false, "num_message_attachments": 1, "message_set": [{"type": 57}, {"type": 9}, {"type": 22}, {"type": 15}, {"type": 48}, {"type": 27}, {"type": 10}, {"type": 50}, {"type": 51}, {"type": 46}, {"type": 61}, {"type": 44}], "smtp_relay_error": null, "upload_error_category": null, "structured_policy_log_info": null, "triggered_rule_info": [], "flattened_triggered_rule_info": null, "smime_sign_message": null, "smime_encrypt_message": null, "smime_packaging_success": null, "smime_extraction_success": null, "smime_content_type": null, "link_domain": [], "attachment": [{"sha256": "1111111111111111111111111111111111111111111111111111111111111111", "file_extension_type": "zip", "malware_family": null}], "spam_info": null, "timestamp": 1629378633.802384}

Source: GitHub | Version: 2