Mobile Audit

MobileAudit - SAST and Malware Analysis for Android Mobile APKs

A Django web application to perform static analysis and detect malicious content inside Android APKs. The project extracts app metadata, scans source code for weaknesses, and aggregates results (SAST findings, best practices, certificate info, strings, databases, files, VirusTotal, and more) into a browsable dashboard and API.

DeepWiki documentation: https://deepwiki.com/mpast/mobileAudit

• Components
• Docker Base images
• Main features
• Patterns
• Models
• Installation
• API v1
  • Usage
  • Swagger
  • ReDoc
  • Endpoints
• TLS
  • Pre-requirements
  • Nginx configuration
  • Docker configuration
• Environment variables

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In each of the scans, it would have the following information:

• APK information and analysis: Application info, security info, components, certificate info, strings, databases, files
• SAST findings categorized with CWE and Mobile Top 10 mapping
• Pattern engine with toggleable rules
• Malware domain checks against MalwareDB & Maltrail
• VirusTotal (API v3) lookup & optional upload (disabled by default)
• DefectDojo integration (API v2) (optional) for exporting findings
• API with Swagger and ReDoc, plus token-based authentication
• Export scan reports to PDF
• Findings editable with false-positive triage

For easy access there is a sidebar on the left page of the scan:

Components

• db: PostgreSQL 3.11.5
• nginx: Nginx 1.23.3
• rabbitmq: RabbitMQ 3.11.5
• worker: Celery 5.2.2
• web: Mobile Audit App (Django 3.2.16)

Docker Base images

Image is based on python buster. Link to Docker Hub image

Image	Tags	Base
mpast/mobile_audit	3.0.0	python:3.9.16-buster
mpast/mobile_audit	2.2.1	python:3.9.7-buster
mpast/mobile_audit	1.3.8	python:3.9.4-buster
mpast/mobile_audit	1.0.0	python:3.9.0-buster

Main features

• Runs in Docker for easy, reproducible deployment
• Extracts and shows detailed APK information
• SAST rules that map to CWE and Mobile Top 10 risks
• Malware indicators detection (MalwareDB / Maltrail)
• Integration points for VirusTotal and DefectDojo (optional)
• Export scan results to PDF
• User authentication, management, and token-based API
• Swagger and ReDoc documentation
• TLS-ready Nginx configuration for production

Planned / wishlist

• LDAP integration
• Export to Markdown / CSV
• Dynamic page reload improvements (WIP)

Patterns

• The app includes a rule/pattern engine that detects potential vulnerabilities and malicious snippets inside APKs.
• Patterns are configurable and can be enabled/disabled from the /patterns UI.
• Note: Some hardcoded patterns are derived from the apkleaks project: https://github.com/dwisiswant0/apkleaks

Models

The application has an created models for each of the entities of the scans' information to be able to create relations an abtain the best conclusions for each of the apks.

To see the whole model schema, go to models

Installation

Using Docker-compose:

The provided docker-compose.yml file allows you to run the app locally in development.

To build the local image and if there are changes to the local Application Dockerfile, you can build the image with:

docker-compose build

Then, to start the container, run:

docker-compose up

Optional: run in detached mode (not see the logs)

docker-compose up -d

Once the application has launched, you can test the application by navigating to: http://localhost:8888/ to access the dashboard.

Also, there is a TLS version using docker-compose.prod.yaml running in port 443

To use it, execute

  docker-compose -f docker-compose.prod.yaml up

Then, you can test the application by navigating to: https://localhost/ to access the dashboard.

For more information, see TLS

To stop and remove the containers, run

docker-compose down

API v1

REST API integration with Swagger and ReDoc.

Usage

• Endpoint to authenticate and get token: /api/v1/auth-token/

• Once authenticated, use header in all requests: Authorization: Token <ApiKey>

Swagger

ReDoc

Endpoints

• A JSON view of the API specification at /swagger.json
• A YAML view of the API specification at /swagger.yaml
• A swagger-ui view of the API specification at /swagger/
• A ReDoc view of the API specification at /redoc/

TLS

Pre-requirements

• Add the certificates into nginx/ssl
• To generate a self-signed certificate:

openssl req -x509 -nodes -days 1 -newkey rsa:4096 -subj "/C=ES/ST=Madrid/L=Madrid/O=Example/OU=IT/CN=localhost" -keyout nginx/ssl/nginx.key -out nginx/ssl/nginx.crt

Nginx configuration

• TLS - port 443: nginx/app_tls.conf
• Standard - port 8888: nginx/app.conf

Docker configuration

By default, there is a volume in docker-compose.yml with the configuration with 8888 available

- ./nginx/app.conf:/etc/nginx/conf.d/app.conf

In a production environment use docker-compose.prod.yaml with port 443

- ./nginx/app_tls.conf:/etc/nginx/conf.d/app_tls.conf

Environment variables

All the environment variables are in a .env file, there is an .env.example with all the variables needed. Also there are collected in app/config/settings.py Suggested minimum .env adjustments for local dev

• Set SECRET_KEY, DB credentials, and admin user credentials.
• Leave VirusTotal / DefectDojo disabled unless you have valid API keys and services available.

Contributing

If you like to contribute, see Contributing

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