Malware Analysis Report

2024-09-09 14:01

Sample ID 240502-a2xjwsea59
Target ea763f5f92a66c49bf09e411ed56aa91.zip
SHA256 fe1be052250f53b52017499744451c614e4771a392efa37afeb1b4774d861df0
Tags
ermac discovery persistence collection credential_access evasion impact 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

fe1be052250f53b52017499744451c614e4771a392efa37afeb1b4774d861df0

Threat Level: Known bad

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

Malicious Activity Summary

ermac discovery persistence collection credential_access evasion impact stealth trojan

Ermac2 payload

Ermac family

Makes use of the framework's Accessibility service

Removes its main activity from the application launcher

Queries the phone number (MSISDN for GSM devices)

Loads dropped Dex/Jar

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

Requests enabling of the accessibility settings.

Queries information about the current Wi-Fi connection

Queries the mobile country code (MCC)

Makes use of the framework's foreground persistence service

Declares broadcast receivers with permission to handle system events

Acquires the wake lock

Reads information about phone network operator.

Declares services with permission to bind to the system

Requests dangerous framework permissions

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-02 00:43

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

2024-05-02 00:43

Reported

2024-05-02 00:45

Platform

android-x86-arm-20240221-en

Max time kernel

4s

Max time network

131s

Command Line

com.dewoleyulucobazu.mowesi

Signatures

Queries the mobile country code (MCC)

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

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

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 142.250.180.10:443 semanticlocation-pa.googleapis.com tcp
GB 216.58.201.110:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp
GB 172.217.169.10:443 semanticlocation-pa.googleapis.com tcp

Files

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

MD5 f24165d1ed0308ef40ec425b8f6c5385
SHA1 a0ff19263651ecaf67f92c90d2f4f2b43a0399e9
SHA256 aa13d518624d51495f891319b633f19ccfb8e50d63160c7c1cfda80ce1742db5
SHA512 22b4ab9014839f9cc1a0377d34199a5ce484c0f965dae83ca63843597fa75895603532fd8a6d9f69985775722132958ea982e3941199fa8bdc5276592f45b2d8

/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 cf845a781c107ec1346e849c9dd1b7e8
SHA1 b44ccc7f7d519352422e59ee8b0bdbac881768a7
SHA256 18619b678a5c207a971a0aa931604f48162e307c57ecdec450d5f095fe9f32c7
SHA512 4802861ea06dc7fb85229a3c8f04e707a084f1ba516510c6f269821b33c8ee4ebf495258fe5bee4850668a5aac1a45f0edf51580da13b7ee160a29d067c67612

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

MD5 d158c3cf4b7410d64353fc5ee59a1bcc
SHA1 7f38786b9ee44fd968c11dd2a99031ad336a844c
SHA256 a3fcf6b58fca365a9b897e36f1bc70bd394b23fe0818447598eeeb95ba04ea2c
SHA512 6627671f224b16a83448e924d7d64110efa3c2bf71c1664e92271f2742df8564ab92436162f0b8c10f751ca242fee3ad955ab4aefd57d7741666d3d1062dae4f

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

MD5 c967b0426a8407ba3c4a84127041ef29
SHA1 a069aeb1646b34a06195797b2b54aaabe2c6aa4b
SHA256 aaedfb4a3393eb978a0305acb6c8c246474daedf00c84a373bfd0e7cf7eec723
SHA512 6a3a4843a42d58623692345e4f251eeaeb203e3093c316276c125ee16ceae90afc2c1822993cf757c9fdb7c7d5cbe6ebdd73495e251a705d8b33b66ac558c540

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

MD5 62e065654c415567584a9dea0da501ee
SHA1 467f7e88660d75df3869d6e6835a48167d389446
SHA256 592b40f3337f27fc7870905cf72118490da796b10c8d0906caa1cdadeeb9892b
SHA512 c6fb6ecff652f881ebce414bbda6a49fe0e9ceea8d5a46ca3361379f1b9e9887c10b727bacc0042a3496afcfabdb0b3a098151dcf971f9430559bba98674aba7

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-02 00:43

Reported

2024-05-02 00:45

Platform

android-x64-20240221-en

Max time kernel

69s

Max time network

156s

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

Removes its main activity from the application launcher

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

Acquires the wake lock

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

Reads information about phone network operator.

discovery

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 ssl.google-analytics.com udp
GB 216.58.212.232:443 ssl.google-analytics.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 142.250.180.14:443 android.apis.google.com tcp
US 1.1.1.1:53 accounts.google.com udp
BE 108.177.15.84:443 accounts.google.com tcp
US 1.1.1.1:53 static.xx.fbcdn.net udp
US 1.1.1.1:53 m.youtube.com udp
US 1.1.1.1:53 images-na.ssl-images-amazon.com udp
US 1.1.1.1:53 en.m.wikipedia.org udp
US 1.1.1.1:53 a.espncdn.com udp
US 1.1.1.1:53 s.yimg.com udp
US 1.1.1.1:53 ir.ebaystatic.com udp
GB 157.240.214.11:443 static.xx.fbcdn.net tcp
US 1.1.1.1:53 www.instagram.com udp
GB 216.58.204.78:443 m.youtube.com tcp
GB 18.239.245.205:443 images-na.ssl-images-amazon.com tcp
NL 185.15.59.224:443 en.m.wikipedia.org tcp
GB 104.86.110.176:80 a.espncdn.com tcp
GB 87.248.114.11:443 s.yimg.com tcp
GB 23.44.65.95:443 ir.ebaystatic.com tcp
GB 157.240.214.174:443 www.instagram.com tcp
US 1.1.1.1:53 www.google.com udp
GB 142.250.187.196:443 www.google.com tcp
GB 216.58.213.4:443 tcp
GB 216.58.213.4:443 tcp
GB 142.250.187.196:443 www.google.com tcp
US 1.1.1.1:53 www.google.co.uk udp
GB 216.58.204.67:443 www.google.co.uk tcp
US 1.1.1.1:53 ofumzgnbnz udp
US 1.1.1.1:53 mqnqrdijlokzmea udp
US 1.1.1.1:53 pegtiqnu udp
US 1.1.1.1:53 update.googleapis.com udp
GB 216.58.204.67:443 update.googleapis.com tcp

Files

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

MD5 d12a7238448e8980d3f8d0dd11776efe
SHA1 91b3a2d6da3f53fc824b91d4e3f096c583875539
SHA256 32034c7c342ad432fe2f2e2a55b03b35c2eeff45e13a1034e112740636bf0629
SHA512 7716a77a7f766add373b1bef2d470e672866789bde1716045914d59f4d26d5769f64a35af61d12cd4bf8ff05d11e7b9ce2da133bb42efa58e5065b02f14a83d3

/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 599d8cbb3ab253c10b88ea428df7ffea
SHA1 d189b7b40346297e919a83425adf8417600f3bc0
SHA256 fc6c24219faf6387c29e10d954d25727a61f8fd050112876a01e5de97a8e1991
SHA512 27170cc86eb849d12b32d610b13684f1131a66d1a8aa18771d0d008357686cac4ada9686cd7fbe15404bf68f73febcae7d59f23a500d912f182d0b2ecf7c5516

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

MD5 feb0b8392308970b48cde4442952bee5
SHA1 ae29632265c3095da32000fc84060df8c8608774
SHA256 a740efd2048c570793a6d32fb313633fe445d1ad03fe8d4dd92da1840c193ff5
SHA512 208960ff5ad8491e2a4c1f5ea9824b12df2f1edb3fc23aebf1a64f979e8e0797e664aada7a2848bc4c36da2fa057b4f9808d27836e910a7af316971d637b7132

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

MD5 06109bbaa90f4be3acde1afca58dd7a2
SHA1 fd33e97a32ad54ff5e9c047706ecb55b17fafebf
SHA256 45ad01f4e666793d40f66dd838971c9a93926d3810df9d4d042d3fb759f101dd
SHA512 449e9cc521e062f9f512137164cefe9daa1dcadb4695619476b605bd365de6c516cf7af32a7fe7a610f4222e92fbf8eb8a5b10e1d7c26de97e9d2422c60efc8c

Analysis: behavioral3

Detonation Overview

Submitted

2024-05-02 00:43

Reported

2024-05-02 00:45

Platform

android-x64-arm64-20240221-en

Max time kernel

14s

Max time network

151s

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

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

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

Reads information about phone network operator.

discovery

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
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 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
GB 172.217.169.42:443 tcp
GB 172.217.169.42:443 tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.187.232:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 null udp
GB 142.250.200.36:443 tcp
GB 142.250.200.36:443 tcp
GB 172.217.169.42:443 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 d08162f69bb6930d3b80ead47cc13094
SHA1 7d69d8bbd68d7cd9f7db0bed9e260883486610df
SHA256 9d165ae5cee1e20598e07c70903d7d93f54f2f6d6bbc2faa28d21656384d65bf
SHA512 8cc78da9cc39b34e3b4fccfbe7d70ff49e3b3bee91c09c6136567f8b8b835cf57512eb56bbebab82a2a08b9309736b32de3ee1751eea8b06a0820e367c7c0d5f

/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 b836a00e0b36231fa496ab4a31b6f54c
SHA1 7c7a48d3e3cf9e19d4c0cc426b68aa75e472a1ae
SHA256 79bd9948338e79edf6c9693836f71b5e3c53ec33d079309be5d22f181e925921
SHA512 c41464347638070bf800c00fa71dba9f0d012cab07b47b46e3fe01c3bb69059ddfaf01fdb9876963b63f7328f64b3ffe41de3013dbd94ba581f00e8846e6cf80

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

MD5 3901f66eff72cd8ffeeb534e67772f42
SHA1 25fe47d0d6847665b188f200d47a1e25244233f6
SHA256 41a0b32308b528b8f9fbb6a357ef9811c27bca058554906edf41f7faef28cd05
SHA512 aed0483f094cced9ef1b7431cda1043d3c01d3fe5a802e93f54337d5e78d1a4cdb2b2463fd3f156306231f5aed58e56be8f9ef6fc2d58c79130c7cefa4cf2f52

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

MD5 7fcdd704abdc80c9975d3376c16ea5bb
SHA1 f91dc158b99474a188338196e31797aa610482db
SHA256 9f97205277efe3e6d9202796f9226267f80a7b46b70200b6dd18399854017f67
SHA512 c03d3c6f8c030dfaba20b001fd036633a0eec4dc727d3ba9d6aa08c6151536423517c6cec6d753c86a2a342b5e1483f7fb6978cf033d01a9f11c003e205fa670