Malware Analysis Report

2024-09-09 14:26

Sample ID 240503-ccrnfscc2x
Target ea763f5f92a66c49bf09e411ed56aa91.bin
SHA256 87d425f966f518fcda3ea563c7709a7fb9fd5a9b16be5e18830d8a5f875aa585
Tags
ermac collection credential_access discovery evasion execution impact persistence stealth trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

87d425f966f518fcda3ea563c7709a7fb9fd5a9b16be5e18830d8a5f875aa585

Threat Level: Known bad

The file ea763f5f92a66c49bf09e411ed56aa91.bin was found to be: Known bad.

Malicious Activity Summary

ermac collection credential_access discovery evasion execution impact persistence stealth trojan

Ermac2 payload

Ermac family

Removes its main activity from the application launcher

Makes use of the framework's Accessibility service

Prevents application removal

Makes use of the framework's foreground persistence service

Queries the phone number (MSISDN for GSM devices)

Requests enabling of the accessibility settings.

Loads dropped Dex/Jar

Queries information about the current Wi-Fi connection

Queries the mobile country code (MCC)

Registers a broadcast receiver at runtime (usually for listening for system events)

Declares services with permission to bind to the system

Requests dangerous framework permissions

Acquires the wake lock

Schedules tasks to execute at a specified time

Declares broadcast receivers with permission to handle system events

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-03 01:56

Signatures

Ermac family

ermac

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 notification listener services to bind with the system. Allows apps to listen to and interact with notifications on the device. android.permission.BIND_NOTIFICATION_LISTENER_SERVICE N/A N/A
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
Required to be able to access the camera device. android.permission.CAMERA N/A N/A
Allows an application to write to external storage. android.permission.WRITE_EXTERNAL_STORAGE N/A N/A
Allows an application to read from external storage. android.permission.READ_EXTERNAL_STORAGE 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 receive SMS messages. android.permission.RECEIVE_SMS 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 read the user's call log. android.permission.READ_CALL_LOG 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 app to access approximate location. android.permission.ACCESS_COARSE_LOCATION 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 write the user's contacts data. android.permission.WRITE_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 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

2024-05-03 01:56

Reported

2024-05-03 01:58

Platform

android-x86-arm-20240221-en

Max time kernel

149s

Max time network

130s

Command Line

com.dewoleyulucobazu.mowesi

Signatures

Makes use of the framework's Accessibility service

collection evasion credential_access
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText N/A N/A

Prevents application removal

evasion
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A

Makes use of the framework's foreground persistence service

evasion persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.setServiceForeground N/A N/A

Queries information about the current Wi-Fi connection

discovery
Description Indicator Process Target
Framework service call android.net.wifi.IWifiManager.getConnectionInfo N/A N/A

Queries the mobile country code (MCC)

discovery
Description Indicator Process Target
Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone N/A N/A

Queries the phone number (MSISDN for GSM devices)

discovery

Registers a broadcast receiver at runtime (usually for listening for system events)

persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.registerReceiver N/A N/A

Requests enabling of the accessibility settings.

Description Indicator Process Target
Intent action android.settings.ACCESSIBILITY_SETTINGS N/A N/A

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Schedules tasks to execute at a specified time

execution persistence
Description Indicator Process Target
Framework service call android.app.job.IJobScheduler.schedule N/A N/A

Uses Crypto APIs (Might try to encrypt user data)

impact
Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Processes

com.dewoleyulucobazu.mowesi

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 142.250.187.202:443 semanticlocation-pa.googleapis.com tcp
GB 142.250.178.10:443 semanticlocation-pa.googleapis.com tcp
US 1.1.1.1:53 null udp
GB 142.250.178.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.213.14:443 android.apis.google.com tcp

Files

/data/data/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-journal

MD5 c4e2bf9370723afafdaa230426008334
SHA1 fd920a62fadd92b834b8b37cee16e10c1e02f4b8
SHA256 9cde2b1ef87c031c595fc895cf90d367bca4ac4b53aedd4cb9ea18983839255f
SHA512 9c057064c348a2e8fe55a4927863ac5e9723a91e3e9e80ab4a3757f6ef426ec512f3cc60da5ccd1cb80811364320e4c97b0239ab2cb46281b3124e0812dcab63

/data/data/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-wal

MD5 f0d9ae07e216b3e152a9635992e4e2af
SHA1 97e0e5b9d22a46ba08f03a7d1c97ffb47173fce3
SHA256 235ae082a2f903f74f273116a2d43be4ddd128b55659a2c785c6ff9c573f7e66
SHA512 49ced5ab2202e4e25498f8d369c49eac89fb71786aa6e1bfc57c4521de1527eb08c5a97d725b909635aea3028063a7a4d3f87301a8b3c1a203316dd309aa20cf

/data/data/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-wal

MD5 c349c256ed6971abe7b8398f245a63f8
SHA1 6bb65c11e19e21f22c3ca56cecbf15131c89500d
SHA256 eb67a4b8f7b11ecef55bb508743bd8d95959f14827eac7bebab096700bff51ff
SHA512 75da155db36e513c1d77c88a97334543446a48793a5f723b7106524ee446ad54160fb18ac2c14287bbf206bde3f073b9487224bab4a1a89603a9bfbdeba53259

/data/data/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-wal

MD5 2d8e222ea58c318c0f4f53732718f635
SHA1 65e159a1e03079d3cbd118c05b36d5a25aa07b75
SHA256 d264b8ed46e8280895181b0a7e3583a38da34ff07fe68bfe60f303837e044428
SHA512 12bf5d8d0e28828a5cef008c9b2d76f5ca0fba410c63b713163937b1b6674890c67749328ab19e94b98394eb680d65295ebfc13ca99c32c90e71f1f015fd0702

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-03 01:56

Reported

2024-05-03 01:58

Platform

android-x64-20240221-en

Max time kernel

2s

Max time network

152s

Command Line

com.dewoleyulucobazu.mowesi

Signatures

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Processes

com.dewoleyulucobazu.mowesi

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 216.58.201.104:443 ssl.google-analytics.com tcp
GB 142.250.178.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.200.14:443 android.apis.google.com tcp
GB 142.250.200.36:443 tcp
GB 142.250.200.36:443 tcp

Files

/data/data/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-journal

MD5 900ae49ad6177163020bd5368906be10
SHA1 e3db69a651590ade7c48d641f0c5546bda25aca8
SHA256 f725240918c6a5e6bbbaa06a8fc9e445ca6eb8972e922f88d9fa984af3ea343c
SHA512 ebf1c358632d332304cee009f915687680f4aad1abe6b36a5837dda1b38e6a56ddf840c1d37f8635f76adc2b5b83f11a62a4d75c715bf2fc6826944504701a97

/data/data/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-wal

MD5 16ef0cc94f719fdfed83163e9c59ad2a
SHA1 44baa2122dd8550060ff4a24569383fb1529ee24
SHA256 08c6aff39bfea9446042e91874b679dab0df2aa6e25c89f0e6a98adf572ca08c
SHA512 d77f4e5c479accf90e09d7ced9caa9ffb13a9f3f8bc541c4d374f75ed64a68fdbf9e3480eae2fab85b75aa23ff9e3cbce3b3f2a8c0e97da21ad266b0fc889451

/data/data/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-wal

MD5 ad6ee378bd55525a3f63cacaa943857e
SHA1 24b5a6edab18f82ea4571be070dd1e83611b7761
SHA256 384295e7383ca73c76f3e5f74e372207ebb0f9014f430265c978eb8927c62e66
SHA512 71756e4a87e0e6cc19ca973a3834657282956116c9c4bddc8b99f09508ccd8df3c3f09367de429ff236efb23387d685c951b8e96f478b8b691036a5234b6ef73

Analysis: behavioral3

Detonation Overview

Submitted

2024-05-03 01:56

Reported

2024-05-03 01:58

Platform

android-x64-arm64-20240221-en

Max time kernel

4s

Max time network

132s

Command Line

com.dewoleyulucobazu.mowesi

Signatures

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /system_ext/framework/androidx.window.sidecar.jar N/A N/A
N/A /system_ext/framework/androidx.window.sidecar.jar N/A N/A

Queries the mobile country code (MCC)

discovery
Description Indicator Process Target
Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone N/A N/A

Processes

com.dewoleyulucobazu.mowesi

Network

Country Destination Domain Proto
GB 142.250.200.14:443 tcp
GB 142.250.200.14:443 tcp
GB 142.250.200.14:443 tcp
N/A 224.0.0.251:5353 udp
GB 142.250.180.10:443 udp
GB 216.58.213.14:443 udp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.206:443 android.apis.google.com tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.179.232:443 ssl.google-analytics.com tcp
GB 142.250.200.36:443 tcp
GB 142.250.200.36:443 tcp

Files

/system_ext/framework/androidx.window.sidecar.jar

MD5 bdf3529e80318eb14e53a5bf3720c10d
SHA1 25c9ace4b1af6e80ebb2572345972c56505969ba
SHA256 bbc8300dd1e9cd08de8f66560c1ac2c928615b72b51cef9649f88974f586d64b
SHA512 48b9c2d01171bb651b9b54826baa51f4add48431a3efd8ceb5f7cc3bcd6f8f37edf47fabb24349dd15b3a02329cd450f90a8d164bf4f8dfae554bf3b35a8a55b

/data/user/0/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-journal

MD5 046a90ec3964e8f066727c10b9e21a3f
SHA1 6a7b3bb8303e10bb69825544d27826a8ba2b4104
SHA256 99e153a70f2a429dc1ca8b70ab06a42077f950c686d70395bbff5143a1fd9adb
SHA512 10afdc8d21e3ec09be6f7d87da7e4529409fed7c13931a2a161e7a150e0eff158b0f758d3c971818d5b0b05fe3f5d40f8334823c0b8a9e6135e34491d4456d5f

/data/user/0/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb

MD5 7e858c4054eb00fcddc653a04e5cd1c6
SHA1 2e056bf31a8d78df136f02a62afeeca77f4faccf
SHA256 9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad
SHA512 d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

/data/user/0/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/user/0/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-wal

MD5 f04050113e0bf017e7f033c4d9b45948
SHA1 f5f66ad4910072c4a6ba96b076db1d3852ba769d
SHA256 9ecfb50c8d28b56f13ec9c8765a1b3fc96e1298adcb4e832946c07d4eb192d36
SHA512 5d7a7e355584d2266f933248d84e6bc025fe745a6c179edf1da638d047c589acd796676a3ff5bab93ae2dd7114df5370c0c8d0b9c397f7e258ced1aa324476fa

/data/user/0/com.dewoleyulucobazu.mowesi/no_backup/androidx.work.workdb-wal

MD5 3d2058f0b713f4758fc09914c27b6e48
SHA1 dae341ad44795b1cf37cab25448eb77291c0b326
SHA256 77cfba10b87ffabec242538cb40a9ab14d1f1dab3b1a2d8d8dd0ecf451e77e18
SHA512 ce628704a3cb1fffdda47604d5fb1db5e86fa5088128346b259f973c122d524943ac5d97a409308026a031b262c35be07c092f6daa73843676797bfc9a8b4cb7