Malware Analysis Report

2025-01-19 05:40

Sample ID 241128-y24vzavkgk
Target app-release-2.apk
SHA256 a6f91bcc1c313b706c06161e17947aeb0ad41a85b030775807e6991f1da7eca9
Tags
ermac hook collection credential_access discovery evasion execution impact infostealer persistence rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Mobile Matrix V15

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

a6f91bcc1c313b706c06161e17947aeb0ad41a85b030775807e6991f1da7eca9

Threat Level: Known bad

The file app-release-2.apk was found to be: Known bad.

Malicious Activity Summary

ermac hook collection credential_access discovery evasion execution impact infostealer persistence rat trojan

Ermac family

Ermac2 payload

Hook

Hook family

Makes use of the framework's Accessibility service

Obtains sensitive information copied to the device clipboard

Queries the phone number (MSISDN for GSM devices)

Queries information about running processes on the device

Makes use of the framework's foreground persistence service

Acquires the wake lock

Reads information about phone network operator.

Queries information about the current Wi-Fi connection

Declares services with permission to bind to the system

Declares broadcast receivers with permission to handle system events

Queries the mobile country code (MCC)

Requests dangerous framework permissions

Uses Crypto APIs (Might try to encrypt user data)

Schedules tasks to execute at a specified time

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

2024-11-28 20:17

Signatures

Ermac family

ermac

Ermac2 payload

Description Indicator Process Target
N/A N/A N/A N/A

Hook family

hook

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

2024-11-28 20:17

Reported

2024-11-28 20:19

Platform

android-x86-arm-20240624-en

Max time kernel

41s

Max time network

66s

Command Line

com.xazuputuboci.jusaya

Signatures

Hook

rat trojan infostealer hook

Hook family

hook

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
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId N/A N/A

Queries information about running processes on the device

discovery
Description Indicator Process Target
Framework service call android.app.IActivityManager.getRunningAppProcesses N/A N/A

Queries the phone number (MSISDN for GSM devices)

discovery

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

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

Reads information about phone network operator.

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

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

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

com.xazuputuboci.jusaya

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.200.42:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 null udp
GB 216.58.204.78:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.179.238:443 android.apis.google.com tcp
GB 142.250.179.234:443 semanticlocation-pa.googleapis.com tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp

Files

/data/data/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-journal

MD5 0816cf405f9b1ce704bd3ab2c82ea618
SHA1 4afbbee83c118d6c1496817d00ddf862aed75d69
SHA256 0fdbbcb55a429acc9d4bb1b0e17a27457d2663cc81a1589ef354d84d53bedeb5
SHA512 a6f87651c0d49da6325cbb3142d6739284cb52bad4db95433bd2758bfdbe4524349aa1cccce52ac32857475cd78cd691d5fa9e9de1fb666803ce0193e1dff917

/data/data/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-wal

MD5 51f6c368447faef96cbc7b733b5d5b8d
SHA1 0671d44f3977cab5da8dc9fb99a2e39f00df442f
SHA256 422fa064a8171a5db30080c2e20454758dd8b52b8dc56ddf03de704970e7dc37
SHA512 85618cf0cf93a43c724730bb9ee3bbdb36ede5198c89b0e620fd4cee156c4d62ef8f78d285970e57506fd1e44d69f1a3fa2e73195bbd916641fb97c7aa85e439

/data/data/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-wal

MD5 eae0965e5e697d96e47acf1c4b41f975
SHA1 98f30efccc5fc82d0a5ba3408b760b53a6057396
SHA256 3e717faaea7539680fb671a614099be0a483643532810472e7d9258cd5c78db0
SHA512 fb87b44ac987f9a4d38efdbafd3642d68afb5ca30c25b175068fb66e62affc74b6f5f9b4fcaaf34afc36339dc01f5776a042e6817ed394fbb59feaa586e8742f

/data/data/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-wal

MD5 6cd67689dc8009cc0c52840037ef58f2
SHA1 7f995d67262bc04037cde63edf76b69d80c13116
SHA256 be411f79c47171265460be6920792e8d2f01ba52f737a42b06b9227b927df2a0
SHA512 0509c2314265b033709550007d827e0f396a75e14428fff1caf9d32689f80769c7c0dd991354c00e22af0285e091587387e8e65753c973c647287cc64050b869

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-28 20:17

Reported

2024-11-28 20:20

Platform

android-x64-20240624-en

Max time kernel

33s

Max time network

156s

Command Line

com.xazuputuboci.jusaya

Signatures

Hook

rat trojan infostealer hook

Hook family

hook

Makes use of the framework's Accessibility service

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

Obtains sensitive information copied to the device clipboard

collection credential_access impact
Description Indicator Process Target
Framework service call android.content.IClipboard.addPrimaryClipChangedListener N/A N/A

Queries information about running processes on the device

discovery
Description Indicator Process Target
Framework service call android.app.IActivityManager.getRunningAppProcesses N/A N/A

Queries the phone number (MSISDN for GSM devices)

discovery

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

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

Reads information about phone network operator.

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

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

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

com.xazuputuboci.jusaya

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 142.250.200.40:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 null udp
GB 142.250.187.238:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.200.46:443 android.apis.google.com tcp
NL 45.200.149.27:3434 tcp
GB 142.250.179.228:443 tcp
GB 142.250.179.228:443 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
GB 216.58.212.206:443 tcp
GB 142.250.200.2:443 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp

Files

/data/data/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-journal

MD5 3dc948cddadd4045c3a54a44c79b488f
SHA1 b9fdf34939adfb724025640148ecb64c23289e1d
SHA256 87abf9950b638bfbf9362fd50e121c76a829f7a488bbf98b6e63a666dd176c33
SHA512 2767e9140a8299df638692fee1278cab6373b99dfce97cc850c58d1e3c969612ab1737c2b8c09dbe8cf99bd9400785cabb0f10fdf407397b3fda040d094a29c3

/data/data/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-wal

MD5 95205689900f67cf011266455349a2ec
SHA1 ccdf95a2290502637affce75eca8b20cabd4b2d5
SHA256 3108ba8d258f6a7a28a05f20fb03f4d2760e72c4d29b502eeda21f1e209e856b
SHA512 815892807055981ea52f2372d10e5c9ec105077485a232c6e71b92770c7c339c76d46b62520bba0a4457efac623bd320e61b83c52d16ff2d658bb095d110f48d

/data/data/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-wal

MD5 228af5052088d2673bb6857f627c0d64
SHA1 59a80ae116336c55a4fbead49e58bad6e6215cb6
SHA256 690bf4efeb52141e184133e8560bb369a461210e9b7cc188e756ea60bfe58e12
SHA512 4b7e494cf63a96b655bbf8a0b48d848f1269ec2d26b875f84741e5dc1f5392b9a5476285839ae0d3d3ebf13c38615327f080c204f81ba71552fc46777636a9ca

/data/data/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-wal

MD5 cb0c4446673bd7ade05cbe0ca8b2d6b0
SHA1 e2e9d9e5385ce3eb03779ad61a024e86fff5ab2f
SHA256 4c64022d6845bb575829a1969c1700e24065b13248e037ceffdc17403671b8f7
SHA512 79fbe6cdb12d255f92890500e491db3c92ada2745374fa7327b64ddb7296906384b768867ebcf227b8d01900037939b4a73a53d8efa39539805bc2bbd19a800d

Analysis: behavioral3

Detonation Overview

Submitted

2024-11-28 20:17

Reported

2024-11-28 20:20

Platform

android-x64-arm64-20240624-en

Max time kernel

72s

Max time network

157s

Command Line

com.xazuputuboci.jusaya

Signatures

Hook

rat trojan infostealer hook

Hook family

hook

Makes use of the framework's Accessibility service

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

Obtains sensitive information copied to the device clipboard

collection credential_access impact
Description Indicator Process Target
Framework service call android.content.IClipboard.addPrimaryClipChangedListener N/A N/A

Queries information about running processes on the device

discovery
Description Indicator Process Target
Framework service call android.app.IActivityManager.getRunningAppProcesses N/A N/A

Queries the phone number (MSISDN for GSM devices)

discovery

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

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

Reads information about phone network operator.

discovery

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

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

com.xazuputuboci.jusaya

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
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 142.250.180.14:443 android.apis.google.com tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 172.217.169.40:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 null udp
GB 142.250.187.228:443 tcp
GB 142.250.187.228:443 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp
NL 45.200.149.27:3434 tcp

Files

/data/user/0/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-journal

MD5 cb6cb4d0b6291f0b46465dcfba703064
SHA1 ba174641d072a89de12764e0c811f0e0363d0c8c
SHA256 91d56c8871d03735e0ee2538d766b5dbcefcacf7579028491c62afc232392ea4
SHA512 e29284a155fc64f856918a359da2e459d419305d6411d7427cd743f47aa7169da7a8d5d8bd90b2e48e5b9408b1fef06bbd7d3211dd9b7174221643e5e9bc7599

/data/user/0/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb

MD5 7e858c4054eb00fcddc653a04e5cd1c6
SHA1 2e056bf31a8d78df136f02a62afeeca77f4faccf
SHA256 9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad
SHA512 d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

/data/user/0/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/user/0/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-wal

MD5 9f24d9882d838ce974ec0b39e389e69f
SHA1 ac2f2fd87323f142bb42e97f86aef3e48e785268
SHA256 bb0411466427e6be4e0bacbf4dff19ee2103586e44b130a4fbdd225c63a0b1cc
SHA512 b4a24a576540585899db0e4a2b9cd78ef48d30866a4ff627514ea9362d874a55d50abb9325f6904249b2ccc4f9accc35d2c1837395aeccd9fa3cbfb48605c90a

/data/user/0/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-wal

MD5 a343a22e5409e52b3379fcda8382de18
SHA1 37f9b1d152189bbdd8c798466709d10534124c24
SHA256 3f7817663f61c98d74ba7947c6396943d3a67ce37989479402347a7804150552
SHA512 6c512d54af94c05899c05c7cc89ee524d3c0ddc2212d37a82173046e71b600413526be2538d1a8cfb91c14a936296e8bd915e8043c1f4c4bd21c76fe0273c8ab

/data/user/0/com.xazuputuboci.jusaya/no_backup/androidx.work.workdb-wal

MD5 636600acd43f24cd0691bef9f5666e02
SHA1 6b13a8627ad767334bd4b565c12472857e742d62
SHA256 b3fdf64b9e4b1392643790989e28618b566d3cff0620e5b550dc357e0d2a2ae4
SHA512 77ebb5d7afbf225da2b8b20e1e27cbbf4ac15463105270026adc65687a5a96dffac871bb1a5acdee24d481051e4003fddd6a2b39ad8d0cb130cee48ac6062bdd