Analysis Overview
SHA256
0e6c87073b40a7914413479920e643f7fd3e56f62db2005d5f6e696cf72f6683
Threat Level: Known bad
The file 0e6c87073b40a7914413479920e643f7fd3e56f62db2005d5f6e696cf72f6683.bin was found to be: Known bad.
Malicious Activity Summary
Ermac2 payload
Ermac family
Ermac
Removes its main activity from the application launcher
Loads dropped Dex/Jar
Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)
Obtains sensitive information copied to the device clipboard
Queries the phone number (MSISDN for GSM devices)
Makes use of the framework's Accessibility service
Makes use of the framework's foreground persistence service
Declares services with permission to bind to the system
Requests disabling of battery optimizations (often used to enable hiding in the background).
Requests dangerous framework permissions
Attempts to obfuscate APK file format
Performs UI accessibility actions on behalf of the user
Acquires the wake lock
Reads information about phone network operator.
Declares broadcast receivers with permission to handle system events
Queries the mobile country code (MCC)
Queries the unique device ID (IMEI, MEID, IMSI)
Uses Crypto APIs (Might try to encrypt user data)
Registers a broadcast receiver at runtime (usually for listening for system events)
Checks CPU information
Checks memory information
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-12-20 22:07
Signatures
Attempts to obfuscate APK file format
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 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 |
| Allows access to the list of accounts in the Accounts Service. | android.permission.GET_ACCOUNTS | N/A | N/A |
| Allows an application to read the user's contacts data. | android.permission.READ_CONTACTS | 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 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 request installing packages. | android.permission.REQUEST_INSTALL_PACKAGES | 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 application to receive SMS messages. | android.permission.RECEIVE_SMS | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-12-20 22:07
Reported
2024-12-20 22:10
Platform
android-x86-arm-20240910-en
Max time kernel
147s
Max time network
155s
Command Line
Signatures
Ermac
Ermac family
Ermac2 payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Removes its main activity from the application launcher
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Loads dropped Dex/Jar
| Description | Indicator | Process | Target |
| N/A | /data/user/0/nusku.ermacv2.apk/app_grief/Wf.json | N/A | N/A |
| N/A | /data/user/0/nusku.ermacv2.apk/app_grief/Wf.json | N/A | N/A |
Makes use of the framework's Accessibility service
| Description | Indicator | Process | Target |
| Framework service call | android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId | N/A | N/A |
| Framework service call | android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText | N/A | N/A |
| Framework service call | android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId | N/A | N/A |
Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)
Queries the phone number (MSISDN for GSM devices)
Acquires the wake lock
| Description | Indicator | Process | Target |
| Framework service call | android.os.IPowerManager.acquireWakeLock | N/A | N/A |
Makes use of the framework's foreground persistence service
| Description | Indicator | Process | Target |
| Framework service call | android.app.IActivityManager.setServiceForeground | N/A | N/A |
Performs UI accessibility actions on behalf of the user
| Description | Indicator | Process | Target |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
Queries the mobile country code (MCC)
| Description | Indicator | Process | Target |
| Framework service call | com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone | N/A | N/A |
Queries the unique device ID (IMEI, MEID, IMSI)
Requests disabling of battery optimizations (often used to enable hiding in the background).
| Description | Indicator | Process | Target |
| Intent action | android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS | N/A | N/A |
Registers a broadcast receiver at runtime (usually for listening for system events)
| Description | Indicator | Process | Target |
| Framework service call | android.app.IActivityManager.registerReceiver | 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 |
Checks CPU information
| Description | Indicator | Process | Target |
| File opened for read | /proc/cpuinfo | N/A | N/A |
Checks memory information
| Description | Indicator | Process | Target |
| File opened for read | /proc/meminfo | N/A | N/A |
Processes
nusku.ermacv2.apk
/system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/nusku.ermacv2.apk/app_grief/Wf.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/nusku.ermacv2.apk/app_grief/oat/x86/Wf.odex --compiler-filter=quicken --class-loader-context=&
Network
| Country | Destination | Domain | Proto |
| N/A | 224.0.0.251:5353 | udp | |
| RU | 78.153.149.187:3434 | 78.153.149.187 | tcp |
| RU | 78.153.149.187:3434 | 78.153.149.187 | tcp |
| GB | 142.250.187.206:443 | tcp | |
| GB | 142.250.187.206:443 | tcp | |
| US | 1.1.1.1:53 | android.apis.google.com | udp |
| GB | 216.58.204.78:443 | android.apis.google.com | tcp |
| GB | 142.250.187.226:443 | tcp |
Files
/data/data/nusku.ermacv2.apk/app_grief/Wf.json
| MD5 | 88a0524f4a2f57ed0c1c25a550f9fc72 |
| SHA1 | 09a456eb98dbe86427bcab886d5de15afe526c74 |
| SHA256 | cd7a09fe9c3540cb21093c327bf4fa03b95a18ec8c1cd18b3f83de836895565d |
| SHA512 | 43aa559876d75636b900f0cd023bf7c4082e5b66af8ea0185fa201483643cb9e523d43515b3877b298ceba8b17bcc40e5385e90c6f57425f0e17269a1abf8be8 |
/data/data/nusku.ermacv2.apk/app_grief/Wf.json
| MD5 | 2adf8ab8c89629ba3fa6b68461370df1 |
| SHA1 | c6e23af773ad1f11e19bc6b9d4a8028262cd21d6 |
| SHA256 | 361beae1571acd73c66f2ca6173d85c644ec56ea27d9816adb756a6ae9efe056 |
| SHA512 | 0dbcf456c57d93a4501589166cf1815ae02f18fa850a50851dc1db5ff18835ed38a85fee109140583067369413df4ec84c1c561e5683e44293baa9d34c3e5462 |
/data/user/0/nusku.ermacv2.apk/app_grief/Wf.json
| MD5 | a964ac68c2b4714b22f487db4b6725a0 |
| SHA1 | 3389c49334225aaaa0adafaee81d71809bf16df4 |
| SHA256 | d1dee0e2441e73cd55d7cda257fe4a98140d26bdc08f31e61f8b00a71ffb2648 |
| SHA512 | 099b452c2e421f19e904aab91dd549b9c0b1ed4d2b5665792b6fcdaa0084f766341af73d6bab2dac447516815e7e59408487b1174dfe4bd0266b2609fd82e2e9 |
/data/user/0/nusku.ermacv2.apk/app_grief/Wf.json
| MD5 | 7a5e7f6a1a943e38077c799065afeda6 |
| SHA1 | 0612d094cd219eea6679f8fad554d2f8c0e3f2d4 |
| SHA256 | e932ff224373c3f0c82b09895c62a7167442bf258c0d8c54d60c843b137a32f8 |
| SHA512 | d67d20a2d23f0b7923079072e4490e9d8091aa7f81f2650c6e60a0b0db7ea2a0bbcd0fe20ba95a8e067b8deb580bd0886b4421beb15454dc8ce75436ee6eef12 |
/data/data/nusku.ermacv2.apk/app_grief/oat/Wf.json.cur.prof
| MD5 | 3773f9bd8350cddc3b03d088aa28ab7e |
| SHA1 | d927af28085fe22394f793b217a7e684dc64db1f |
| SHA256 | fc79f7f55108bd1b2108f71b2c46992598af63bbac5b092804003f36e710abca |
| SHA512 | f3f01b2d1e2a3c6e16f4c2a0dd1e0c7444c0c7f6379e3f31d82d8a10db9d52cee0858891b5184868c193bbb31c8bebebdb8512d221b3216f5fb99d6a760bebb5 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-20 22:07
Reported
2024-12-20 22:10
Platform
android-x64-20240624-en
Max time kernel
42s
Max time network
157s
Command Line
Signatures
Ermac
Ermac family
Ermac2 payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Removes its main activity from the application launcher
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Loads dropped Dex/Jar
| Description | Indicator | Process | Target |
| N/A | /data/user/0/nusku.ermacv2.apk/app_grief/Wf.json | N/A | N/A |
Makes use of the framework's Accessibility service
| Description | Indicator | Process | Target |
| Framework service call | android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId | N/A | N/A |
| Framework service call | android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId | N/A | N/A |
| Framework service call | android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText | N/A | N/A |
Obtains sensitive information copied to the device clipboard
| Description | Indicator | Process | Target |
| Framework service call | android.content.IClipboard.addPrimaryClipChangedListener | N/A | N/A |
Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)
Queries the phone number (MSISDN for GSM devices)
Acquires the wake lock
| Description | Indicator | Process | Target |
| Framework service call | android.os.IPowerManager.acquireWakeLock | N/A | N/A |
Makes use of the framework's foreground persistence service
| Description | Indicator | Process | Target |
| Framework service call | android.app.IActivityManager.setServiceForeground | N/A | N/A |
Performs UI accessibility actions on behalf of the user
| Description | Indicator | Process | Target |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
Queries the mobile country code (MCC)
| Description | Indicator | Process | Target |
| Framework service call | com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone | N/A | N/A |
Queries the unique device ID (IMEI, MEID, IMSI)
Reads information about phone network operator.
Registers a broadcast receiver at runtime (usually for listening for system events)
| Description | Indicator | Process | Target |
| Framework service call | android.app.IActivityManager.registerReceiver | 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 |
Checks CPU information
| Description | Indicator | Process | Target |
| File opened for read | /proc/cpuinfo | N/A | N/A |
Checks memory information
| Description | Indicator | Process | Target |
| File opened for read | /proc/meminfo | N/A | N/A |
Processes
nusku.ermacv2.apk
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 | 172.217.169.72:443 | ssl.google-analytics.com | tcp |
| RU | 78.153.149.187:3434 | 78.153.149.187 | tcp |
| RU | 78.153.149.187:3434 | 78.153.149.187 | tcp |
| GB | 142.250.179.238:443 | tcp | |
| US | 1.1.1.1:53 | android.apis.google.com | udp |
| GB | 142.250.180.14:443 | android.apis.google.com | tcp |
| GB | 142.250.200.34:443 | tcp | |
| GB | 216.58.204.78:443 | tcp | |
| GB | 142.250.179.228:443 | tcp | |
| GB | 142.250.179.228:443 | tcp | |
| GB | 216.58.212.227:443 | tcp | |
| GB | 216.58.212.227:443 | tcp | |
| GB | 216.58.212.227:443 | tcp | |
| RU | 78.153.149.187:3434 | 78.153.149.187 | tcp |
| RU | 78.153.149.187:3434 | 78.153.149.187 | tcp |
| US | 1.1.1.1:53 | g.tenor.com | udp |
| GB | 172.217.169.74:443 | g.tenor.com | tcp |
Files
/data/data/nusku.ermacv2.apk/app_grief/Wf.json
| MD5 | 88a0524f4a2f57ed0c1c25a550f9fc72 |
| SHA1 | 09a456eb98dbe86427bcab886d5de15afe526c74 |
| SHA256 | cd7a09fe9c3540cb21093c327bf4fa03b95a18ec8c1cd18b3f83de836895565d |
| SHA512 | 43aa559876d75636b900f0cd023bf7c4082e5b66af8ea0185fa201483643cb9e523d43515b3877b298ceba8b17bcc40e5385e90c6f57425f0e17269a1abf8be8 |
/data/data/nusku.ermacv2.apk/app_grief/Wf.json
| MD5 | 2adf8ab8c89629ba3fa6b68461370df1 |
| SHA1 | c6e23af773ad1f11e19bc6b9d4a8028262cd21d6 |
| SHA256 | 361beae1571acd73c66f2ca6173d85c644ec56ea27d9816adb756a6ae9efe056 |
| SHA512 | 0dbcf456c57d93a4501589166cf1815ae02f18fa850a50851dc1db5ff18835ed38a85fee109140583067369413df4ec84c1c561e5683e44293baa9d34c3e5462 |
/data/user/0/nusku.ermacv2.apk/app_grief/Wf.json
| MD5 | a964ac68c2b4714b22f487db4b6725a0 |
| SHA1 | 3389c49334225aaaa0adafaee81d71809bf16df4 |
| SHA256 | d1dee0e2441e73cd55d7cda257fe4a98140d26bdc08f31e61f8b00a71ffb2648 |
| SHA512 | 099b452c2e421f19e904aab91dd549b9c0b1ed4d2b5665792b6fcdaa0084f766341af73d6bab2dac447516815e7e59408487b1174dfe4bd0266b2609fd82e2e9 |
Analysis: behavioral3
Detonation Overview
Submitted
2024-12-20 22:07
Reported
2024-12-20 22:10
Platform
android-x64-arm64-20240910-en
Max time kernel
148s
Max time network
157s
Command Line
Signatures
Ermac
Ermac family
Ermac2 payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Removes its main activity from the application launcher
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Loads dropped Dex/Jar
| Description | Indicator | Process | Target |
| N/A | /data/user/0/nusku.ermacv2.apk/app_grief/Wf.json | N/A | N/A |
Makes use of the framework's Accessibility service
| Description | Indicator | Process | Target |
| Framework service call | android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId | N/A | N/A |
| Framework service call | android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId | N/A | N/A |
| Framework service call | android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText | N/A | N/A |
Obtains sensitive information copied to the device clipboard
| Description | Indicator | Process | Target |
| Framework service call | android.content.IClipboard.addPrimaryClipChangedListener | N/A | N/A |
Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)
Queries the phone number (MSISDN for GSM devices)
Acquires the wake lock
| Description | Indicator | Process | Target |
| Framework service call | android.os.IPowerManager.acquireWakeLock | N/A | N/A |
Makes use of the framework's foreground persistence service
| Description | Indicator | Process | Target |
| Framework service call | android.app.IActivityManager.setServiceForeground | N/A | N/A |
Performs UI accessibility actions on behalf of the user
| Description | Indicator | Process | Target |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
| N/A | android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction | N/A | N/A |
Queries the mobile country code (MCC)
| Description | Indicator | Process | Target |
| Framework service call | com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone | N/A | N/A |
Queries the unique device ID (IMEI, MEID, IMSI)
Requests disabling of battery optimizations (often used to enable hiding in the background).
| Description | Indicator | Process | Target |
| Intent action | android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS | 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 |
Checks CPU information
| Description | Indicator | Process | Target |
| File opened for read | /proc/cpuinfo | N/A | N/A |
Checks memory information
| Description | Indicator | Process | Target |
| File opened for read | /proc/meminfo | N/A | N/A |
Processes
nusku.ermacv2.apk
Network
| Country | Destination | Domain | Proto |
| N/A | 224.0.0.251:5353 | udp | |
| GB | 172.217.169.14:443 | tcp | |
| US | 1.1.1.1:53 | android.apis.google.com | udp |
| GB | 142.250.178.14:443 | android.apis.google.com | tcp |
| US | 1.1.1.1:53 | www.youtube.com | udp |
| GB | 172.217.16.238:443 | www.youtube.com | udp |
| GB | 172.217.16.238:443 | www.youtube.com | tcp |
| GB | 142.250.178.14:443 | www.youtube.com | tcp |
| US | 216.239.38.223:443 | tcp | |
| RU | 78.153.149.187:3434 | 78.153.149.187 | tcp |
| US | 1.1.1.1:53 | ssl.google-analytics.com | udp |
| GB | 142.250.200.8:443 | ssl.google-analytics.com | tcp |
| RU | 78.153.149.187:3434 | 78.153.149.187 | tcp |
| US | 216.239.38.223:443 | tcp | |
| GB | 142.250.200.14:443 | www.youtube.com | tcp |
| GB | 172.217.169.33:443 | tcp | |
| GB | 216.58.201.97:443 | tcp | |
| US | 216.239.38.223:443 | tcp | |
| US | 216.239.38.223:443 | tcp |
Files
/data/data/nusku.ermacv2.apk/app_grief/Wf.json
| MD5 | 88a0524f4a2f57ed0c1c25a550f9fc72 |
| SHA1 | 09a456eb98dbe86427bcab886d5de15afe526c74 |
| SHA256 | cd7a09fe9c3540cb21093c327bf4fa03b95a18ec8c1cd18b3f83de836895565d |
| SHA512 | 43aa559876d75636b900f0cd023bf7c4082e5b66af8ea0185fa201483643cb9e523d43515b3877b298ceba8b17bcc40e5385e90c6f57425f0e17269a1abf8be8 |
/data/data/nusku.ermacv2.apk/app_grief/Wf.json
| MD5 | 2adf8ab8c89629ba3fa6b68461370df1 |
| SHA1 | c6e23af773ad1f11e19bc6b9d4a8028262cd21d6 |
| SHA256 | 361beae1571acd73c66f2ca6173d85c644ec56ea27d9816adb756a6ae9efe056 |
| SHA512 | 0dbcf456c57d93a4501589166cf1815ae02f18fa850a50851dc1db5ff18835ed38a85fee109140583067369413df4ec84c1c561e5683e44293baa9d34c3e5462 |
/data/user/0/nusku.ermacv2.apk/app_grief/Wf.json
| MD5 | a964ac68c2b4714b22f487db4b6725a0 |
| SHA1 | 3389c49334225aaaa0adafaee81d71809bf16df4 |
| SHA256 | d1dee0e2441e73cd55d7cda257fe4a98140d26bdc08f31e61f8b00a71ffb2648 |
| SHA512 | 099b452c2e421f19e904aab91dd549b9c0b1ed4d2b5665792b6fcdaa0084f766341af73d6bab2dac447516815e7e59408487b1174dfe4bd0266b2609fd82e2e9 |
/data/data/nusku.ermacv2.apk/app_grief/oat/Wf.json.cur.prof
| MD5 | 54e2b0e8c1ccd1966489478e8b148b14 |
| SHA1 | f8464ab42c5945932131dfa57d435e3915b6e6c9 |
| SHA256 | 785ec4078661c8818b1d172d8a3f40377093f6a615119a903a1efc363e552906 |
| SHA512 | dcc0bfb609febc534cb6df5099ada8e5ae98effbdde954e65e9f3f67fb7fe0317a8cf7549d7d9363220a15e83435cfd458513805ab6c542acb7f67e6b6b37be5 |