O365 Multiple Users From Ip

Date: 2023-10-10 ID: a15c0de3-afb5-4090-9205-72366c135f3c Author: Mauricio Velazco Environment: attack_range Directory: o365_multiple_users_from_ip

Description

Used o365 spray to perform a password spraying attack against an Office 365 tenant using 30 users accounts. Tenant specific details have been replaced in the dataset including tenant id, user names, ips, etc.

MITRE ATT&CK Techniques

ID	Technique	Tactic
T1110.003	Password Spraying	Credential Access

Environment Details

Field	Value
Environment	attack_range
Directory	o365_multiple_users_from_ip
Test Date	2023-10-10

Datasets

The following datasets were collected during this attack simulation:

O365_multiple_users_from_ip

Path: /datasets/attack_techniques/T1110.003/o365_multiple_users_from_ip/o365_multiple_users_from_ip.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 Multiple Users Failing To Authenticate From Ip	`TTP`	Cloud	T1110.003, T1110.004, T1586.003	Office 365 Account Takeover, NOBELIUM Group

Usage Instructions

Replay with Splunk Attack Data

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

1python replay.py --dataset /datasets/attack_techniques/T1110.003/o365_multiple_users_from_ip/o365_multiple_users_from_ip.log --index attack_data

Manual Import

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

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

Source: GitHub | Version: 1.0