GitHub Repo

O365 Suspect Email Actions

Date: 2025-08-12 ID: 16bfceea-a344-4013-8c6d-8a5ffe7fd5eb Author: Generated by dataset_analyzer.py Environment: attack_range Directory: o365_suspect_email_actions

Description

Automatically categorized datasets in directory o365_suspect_email_actions

MITRE ATT&CK Techniques

ID Technique Tactic
T1114 Email Collection Collection

Environment Details

Field Value
Environment attack_range
Directory o365_suspect_email_actions
Test Date 2025-08-12

Datasets

The following datasets were collected during this attack simulation:

O365_messagetrace_suspect_events

  • Path: /datasets/attack_techniques/T1114/o365_suspect_email_actions/o365_messagetrace_suspect_events.log
  • Sourcetype: o365:management:activity
  • Source: o365

O365_exchange_suspect_events

  • Path: /datasets/attack_techniques/T1114/o365_suspect_email_actions/o365_exchange_suspect_events.log
  • Sourcetype: o365:management:activity
  • Source: o365

The following detections in our security content repository use this attack data for testing:

Detection Name Type Source MITRE ATT&CK Analytic Story
O365 Email Send Attachments Excessive Volume Anomaly Cloud T1070.008, T1485 Office 365 Account Takeover, Suspicious Emails
O365 Email Password and Payroll Compromise Behavior TTP Cloud T1070.008, T1485, T1114.001 Office 365 Account Takeover, Office 365 Collection Techniques, Suspicious Emails, Data Destruction
O365 Email Receive and Hard Delete Takeover Behavior Anomaly Cloud T1070.008, T1485, T1114.001 Office 365 Account Takeover, Office 365 Collection Techniques, Suspicious Emails, Data Destruction
O365 Email Hard Delete Excessive Volume Anomaly Cloud T1070.008, T1485 Office 365 Account Takeover, Suspicious Emails, Data Destruction
O365 Email New Inbox Rule Created Anomaly Cloud T1114.003, T1564.008 Office 365 Collection Techniques
O365 Email Send and Hard Delete Exfiltration Behavior Anomaly Cloud T1114.001, T1070.008, T1485 Office 365 Account Takeover, Office 365 Collection Techniques, Suspicious Emails, Data Destruction
O365 Email Send and Hard Delete Suspicious Behavior Anomaly Cloud T1114.001, T1070.008, T1485 Office 365 Account Takeover, Office 365 Collection Techniques, Suspicious Emails, Data Destruction

Usage Instructions

Replay with Splunk Attack Data

Replay attack data with replay.py from Splunk Attack Data.

1python replay.py --dataset /datasets/attack_techniques/T1114/o365_suspect_email_actions/o365_messagetrace_suspect_events.log --index attack_data

Manual Import

  1. Download the dataset files from the paths listed above
  2. Configure your Splunk instance with the appropriate sourcetypes
  3. Import the logs using the Splunk Add Data wizard

Related Content

Find more detections and analytics for this attack technique in our security content repository.

Source: GitHub | Version: 1.0