Password Spraying Azuread

Date: 2023-06-16 ID: e73d690b-57d8-430f-be60-b64a0f1405cd Author: Mauricio Velazco Environment: attack_range Directory: password_spraying_azuread

Description

Used Invoke-MSOLSpray to perform a password spraying attack against an Azure AD 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	password_spraying_azuread
Test Date	2023-06-16

Datasets

The following datasets were collected during this attack simulation:

Azuread_signin

Path: /datasets/attack_techniques/T1110.003/password_spraying_azuread/azuread_signin.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 Unusual Number of Failed Authentications From Ip	`Anomaly`	Cloud	T1110.003, T1110.004, T1586.003	Azure Active Directory Account Takeover
Azure AD Multiple Users Failing To Authenticate From Ip	`Anomaly`	Cloud	T1110.003, T1110.004, T1586.003	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/T1110.003/password_spraying_azuread/azuread_signin.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