Insights
This blog has been taken from Malcore’s analysis results. The points below are not an exhaustive list. For a full view of Malcore’s static analysis of the WeChat App APK view it on Malcore.
Try Malcore for Free!
First 5 scans are free on registration
Discovered Trackers
Baidu Maps
Google CrashLytics
Google Tag Manager
WeChat Location
Google Firebase Analytics
High severity warnings from code analysis
The App uses an insecure Random Number Generator.
App uses SQLite Database and execute raw SQL query. Untrusted user input in raw SQL queries can cause SQL Injection. Also sensitive information should be encrypted and written to the database.
Files may contain hardcoded sensitive information like usernames, passwords, keys etc.
This App has capabilities to prevent against Screenshots from Recent Task History/ Now On Tap etc.
App can read/write to External Storage. Any App can read data written to External Storage.
SHA-1 is a weak hash known to have hash collisions.
Suspicious severity warnings from code analysis
Application attempts to discover build version of device.
Dangerous Labelled permissions from Android
Android Dangerous labelled permissions as Dangerous from this library https://developer.android.com/reference/android/Manifest.permission.
Name: CHANGE_NETWORK_STATE
Description: Allows an application to change the state of network connectivity.
Name: ACCESS_COARSE_LOCATION
Description: Access coarse location sources, such as the mobile network database, to determine an approximate phone location, where available. Malicious applications can use this to determine approximately where you are.
Name: BLUETOOTH
Description: Allows an application to view configuration of the local Bluetooth phone and to make and accept connections with paired devices.
Name: ACTIVITY_RECOGNITION
Description: Allows an application to recognize physical activity.
Name: BLUETOOTH_ADMIN
Description: Allows an application to configure the local Bluetooth phone and to discover and pair with remote devices.
Name: NFC
Description: Allows an application to communicate with Near-Field Communication (NFC) tags, cards and readers.
Name: ACCESS_FINE_LOCATION
Description: Access fine location sources, such as the Global Positioning System on the phone, where available. Malicious applications can use this to determine where you are and may consume additional battery power.
Name: GET_TASKS
Description: Allows application to retrieve information about currently and recently running tasks. May allow malicious applications to discover private information about other applications.
Name: ACCESS_NETWORK_STATE
Description: Allows an application to view the status of all networks.
Name: CHANGE_WIFI_MULTICAST_STATE
Description: Allows an application to receive packets not directly addressed to your device. This can be useful when discovering services offered nearby. It uses more power than the non-multicast mode.
Name: WRITE_EXTERNAL_STORAGE
Description: Allows an application to write to the SD card.
Name: READ_EXTERNAL_STORAGE
Description: Allows an application to read from SD Card.
Name: READ_SETTINGS
Description: Allows applications to read the global setting of the device it is running on.
Name: SYSTEM_ALERT_WINDOW
Description: Allows an application to show system-alert windows. Malicious applications can take over the entire screen of the phone.
Name: CAMERA
Description: Allows application to take pictures and videos with the camera. This allows the application to collect images that the camera is seeing at any time.
Name: WAKE_LOCK
Description: Allows an application to prevent the phone from going to sleep.
Name: CHANGE_WIFI_STATE
Description: Allows an application to connect to and disconnect from Wi-Fi access points and to make changes to configured Wi-Fi networks.
Name: RECORD_AUDIO
Description: Allows application to access the audio record path.
Name: READ_CONTACTS
Description: Allows an application to read all of the contact (address) data stored on your phone. Malicious applications can use this to send your data to other people.
Name: MODIFY_AUDIO_SETTINGS
Description: Allows application to modify global audio settings, such as volume and routing.
To view how these results compare within industry see our analysis:
To view how these scores are created visit our transparency post where we published a description of our phone application threat scoring algorithm: