Analysis Overview
SHA256
16ec950e7f8c4645f89017ffd6f94e76217e0a955068e722732f087af4a4407d
Threat Level: Known bad
The file 16ec950e7f8c4645f89017ffd6f94e76217e0a955068e722732f087af4a4407d.bin was found to be: Known bad.
Malicious Activity Summary
Ermac2 payload
Ermac family
Removes its main activity from the application launcher
Makes use of the framework's foreground persistence service
Declares broadcast receivers with permission to handle system events
Declares services with permission to bind to the system
Requests dangerous framework permissions
Acquires the wake lock
Uses Crypto APIs (Might try to encrypt user data)
MITRE ATT&CK Matrix
Analysis: static1
Detonation Overview
Reported
2024-04-25 22:02
Signatures
Ermac family
Ermac2 payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Declares broadcast receivers with permission to handle system events
| Description | Indicator | Process | Target |
| Required by device admin receivers to bind with the system. Allows apps to manage device administration features. | android.permission.BIND_DEVICE_ADMIN | N/A | N/A |
Declares services with permission to bind to the system
| Description | Indicator | Process | Target |
| Required by accessibility services to bind with the system. Allows apps to access accessibility features. | android.permission.BIND_ACCESSIBILITY_SERVICE | N/A | N/A |
Requests dangerous framework permissions
| Description | Indicator | Process | Target |
| Allows an application to request installing packages. | android.permission.REQUEST_INSTALL_PACKAGES | N/A | N/A |
| Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call. | android.permission.CALL_PHONE | N/A | N/A |
| Allows an application to receive SMS messages. | android.permission.RECEIVE_SMS | N/A | N/A |
| Allows an application to read SMS messages. | android.permission.READ_SMS | N/A | N/A |
| Allows an application to send SMS messages. | android.permission.SEND_SMS | N/A | N/A |
| Allows an application to read the user's contacts data. | android.permission.READ_CONTACTS | N/A | N/A |
| Allows access to the list of accounts in the Accounts Service. | android.permission.GET_ACCOUNTS | N/A | N/A |
| Allows read only access to phone state, including the current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device. | android.permission.READ_PHONE_STATE | N/A | N/A |
| Allows read access to the device's phone number(s). | android.permission.READ_PHONE_NUMBERS | N/A | N/A |
| Allows an app to create windows using the type LayoutParams.TYPE_APPLICATION_OVERLAY, shown on top of all other apps. | android.permission.SYSTEM_ALERT_WINDOW | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-25 22:02
Reported
2024-04-25 22:14
Platform
android-x86-arm-20240221-en
Max time kernel
18s
Max time network
130s
Command Line
Signatures
Removes its main activity from the application launcher
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Uses Crypto APIs (Might try to encrypt user data)
| Description | Indicator | Process | Target |
| Framework API call | javax.crypto.Cipher.doFinal | N/A | N/A |
Processes
com.mafalacobiga.yarala
Network
| Country | Destination | Domain | Proto |
| N/A | 224.0.0.251:5353 | udp | |
| GB | 142.250.200.14:443 | tcp | |
| GB | 142.250.200.14:443 | tcp | |
| US | 1.1.1.1:53 | android.apis.google.com | udp |
| GB | 216.58.204.78:443 | android.apis.google.com | tcp |
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-25 22:02
Reported
2024-04-25 22:14
Platform
android-x64-20240221-en
Max time kernel
12s
Max time network
147s
Command Line
Signatures
Makes use of the framework's foreground persistence service
| Description | Indicator | Process | Target |
| Framework service call | android.app.IActivityManager.setServiceForeground | N/A | N/A |
Acquires the wake lock
| Description | Indicator | Process | Target |
| Framework service call | android.os.IPowerManager.acquireWakeLock | N/A | N/A |
Uses Crypto APIs (Might try to encrypt user data)
| Description | Indicator | Process | Target |
| Framework API call | javax.crypto.Cipher.doFinal | N/A | N/A |
Processes
com.mafalacobiga.yarala
Network
| Country | Destination | Domain | Proto |
| N/A | 224.0.0.251:5353 | udp | |
| US | 1.1.1.1:53 | ssl.google-analytics.com | udp |
| GB | 142.250.200.8:443 | ssl.google-analytics.com | tcp |
| GB | 142.250.178.14:443 | tcp | |
| US | 1.1.1.1:53 | android.apis.google.com | udp |
| GB | 172.217.16.238:443 | android.apis.google.com | tcp |
| GB | 216.58.201.100:443 | tcp | |
| GB | 216.58.201.100:443 | tcp |
Files
Analysis: behavioral3
Detonation Overview
Submitted
2024-04-25 22:02
Reported
2024-04-25 22:14
Platform
android-x64-arm64-20240221-en
Max time kernel
16s
Max time network
141s
Command Line
Signatures
Removes its main activity from the application launcher
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Uses Crypto APIs (Might try to encrypt user data)
| Description | Indicator | Process | Target |
| Framework API call | javax.crypto.Cipher.doFinal | N/A | N/A |
Processes
com.mafalacobiga.yarala
Network
| Country | Destination | Domain | Proto |
| N/A | 224.0.0.251:5353 | udp | |
| GB | 142.250.200.10:443 | udp | |
| GB | 142.250.200.14:443 | udp | |
| GB | 142.250.200.46:443 | tcp | |
| US | 1.1.1.1:53 | android.apis.google.com | udp |
| GB | 142.250.200.46:443 | android.apis.google.com | tcp |
| US | 1.1.1.1:53 | ssl.google-analytics.com | udp |
| GB | 142.250.200.40:443 | ssl.google-analytics.com | tcp |
| GB | 142.250.200.4:443 | tcp | |
| GB | 142.250.200.4:443 | tcp |