Azure Ad High Number Of Failed Authentications For User

Date: 2023-01-23 ID: 65340060-37c2-40fb-a969-45596e7c5e8b Author: Mauricio Velazco Environment: attack_range Directory: azure_ad_high_number_of_failed_authentications_for_user

Description

Used Invoke-MSOLSpray to perform a brute force attack attack against a unique Azure AD account with 25 passwords. Tenant specific details have been replaced in the dataset including tenant id, user names, ips, etc.

MITRE ATT&CK Techniques

ID	Technique	Tactic
T1110.001	Password Guessing	Credential Access

Environment Details

Field	Value
Environment	attack_range
Directory	azure_ad_high_number_of_failed_authentications_for_user
Test Date	2023-01-23

Datasets

The following datasets were collected during this attack simulation:

Azuread

Path: /datasets/attack_techniques/T1110.001/azure_ad_high_number_of_failed_authentications_for_user/azuread.log
Sourcetype: azure:monitor:aad
Source: azure

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

Detection Name	Type	Source	MITRE ATT&CK	Analytic Story
Azure AD High Number Of Failed Authentications From Ip	`TTP`	Cloud	T1110.001, T1110.003	Compromised User Account, Azure Active Directory Account Takeover, NOBELIUM Group
Azure AD High Number Of Failed Authentications For User	`TTP`	Cloud	T1110.001	Compromised User Account, Azure Active Directory Account Takeover

Usage Instructions

Replay with Splunk Attack Data

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

1python replay.py --dataset /datasets/attack_techniques/T1110.001/azure_ad_high_number_of_failed_authentications_for_user/azuread.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