Create New Azure AD Service Principal for Application
Contents
Create New Azure AD Service Principal for Application#
Metadata#
platform |
Azure |
contributors |
Roberto Rodriguez @Cyb3rWard0g,MSTIC R&D |
creation date |
2021-08-05 |
modification date |
2021-09-08 |
Tactics |
|
Techniques |
Description#
A threat actor might want to create a service principal for an existing Azure AD application via Microsoft Graph APIs and the right permissions.
Run Simulation#
Get OAuth Access Token#
from msal import PublicClientApplication
import requests
import time
function_app_url = "https://FUNCTION_APP_NAME.azurewebsites.net"
tenant_id = "TENANT_ID"
public_client_app_id = "KATANA_CLIENT_APP_ID"
server_app_id_uri = "api://" + tenant_id + "/cloudkatana"
scope = server_app_id_uri + "/user_impersonation"
app = PublicClientApplication(
public_client_app_id,
authority="https://login.microsoftonline.com/" + tenant_id
)
result = app.acquire_token_interactive(scopes=[scope])
bearer_token = result['access_token']
Set Azure Function Orchestrator#
endpoint = function_app_url + "/api/orchestrators/Orchestrator"
Prepare HTTP Body#
data = [{'RequestId': 'ca034cc5-522f-4d2c-b71f-bf7ec3a7ca42', 'name': 'Create New Azure AD Service Principal for Application', 'metadata': {'creationDate': '2021-08-05', 'modificationDate': '2021-09-08', 'description': 'A threat actor might want to create a service principal for an existing Azure AD application via Microsoft Graph APIs and the right permissions.\n', 'contributors': ['Roberto Rodriguez @Cyb3rWard0g', 'MSTIC R&D'], 'mitreAttack': [{'technique': 'T1136.003', 'tactics': ['TA0003']}]}, 'steps': [{'schema': 'atomic', 'id': 'c0771117-a978-4bf2-9832-64d4ed279da9', 'name': 'Create New Azure AD Service Principal for Application', 'metadata': {'creationDate': '2021-08-05', 'modificationDate': '2021-09-08', 'description': 'A threat actor might want to create a service principal for an existing Azure AD application via Microsoft Graph APIs and the right permissions.\n', 'contributors': ['Roberto Rodriguez @Cyb3rWard0g', 'MSTIC R&D'], 'mitreAttack': [{'technique': 'T1136.003', 'tactics': ['TA0003']}]}, 'authorization': [{'resource': 'https://graph.microsoft.com/', 'permissionsType': 'application', 'permissions': ['Application.ReadWrite.All']}], 'execution': {'type': 'ScriptModule', 'platform': 'Azure', 'executor': 'PowerShell', 'module': {'name': 'CloudKatanaAbilities', 'version': 1.0, 'function': 'New-CKAzADServicePrincipal'}, 'parameters': {}}, 'file_name': 'create_new_azure_ad_service_principal_for_application', 'number': 1}]}]
Send HTTP Request#
http_headers = {'Authorization': 'Bearer ' + bearer_token, 'Accept': 'application/json','Content-Type': 'application/json'}
results = requests.get(endpoint, json=data, headers=http_headers, stream=False).json()
time.sleep(30)
Explore Output#
query_status = requests.get(results['statusQueryGetUri'], headers=http_headers, stream=False).json()
query_results = query_status['output']
query_results