Malware Analysis Report

2025-04-03 14:16

Sample ID 250312-bv146stsaz
Target EVNCSKH.apk
SHA256 ceabe07a066a4562e821f8304eaca6af2a79cb86e12814b1272d789e6c8caf45
Tags
golddigger collection credential_access defense_evasion discovery execution impact persistence
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 Overview

score
10/10

SHA256

ceabe07a066a4562e821f8304eaca6af2a79cb86e12814b1272d789e6c8caf45

Threat Level: Known bad

The file EVNCSKH.apk was found to be: Known bad.

Malicious Activity Summary

golddigger collection credential_access defense_evasion discovery execution impact persistence

GoldDigger payload

Golddigger family

Queries account information for other applications stored on the device

Queries information about running processes on the device

Makes use of the framework's Accessibility service

Acquires the wake lock

Queries information about active data network

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

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

Uses Crypto APIs (Might try to encrypt user data)

Schedules tasks to execute at a specified time

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-03-12 01:28

Signatures

GoldDigger payload

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

Golddigger family

golddigger

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
Required by wallpaper services to bind with the system. Allows apps to provide live wallpapers. android.permission.BIND_WALLPAPER N/A N/A

Requests dangerous framework permissions

Description Indicator Process Target
Allows an application to record audio. android.permission.RECORD_AUDIO 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 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 an application to read or write the system settings. android.permission.WRITE_SETTINGS N/A N/A
Allows an application to read SMS messages. android.permission.READ_SMS N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to send SMS messages. android.permission.SEND_SMS 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 app to access precise location. android.permission.ACCESS_FINE_LOCATION N/A N/A
Allows an app to access location in the background. android.permission.ACCESS_BACKGROUND_LOCATION N/A N/A
Required to be able to access the camera device. android.permission.CAMERA 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 applications to use exact alarm APIs. android.permission.SCHEDULE_EXACT_ALARM N/A N/A
Allows an application a broad access to external storage in scoped storage. android.permission.MANAGE_EXTERNAL_STORAGE 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

Analysis: behavioral1

Detonation Overview

Submitted

2025-03-12 01:28

Reported

2025-03-12 02:03

Platform

android-x86-arm-20240910-en

Max time kernel

86s

Max time network

85s

Command Line

com.sextest.test

Signatures

Makes use of the framework's Accessibility service

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

Queries account information for other applications stored on the device

collection
Description Indicator Process Target
Framework service call android.accounts.IAccountManager.getAccountsAsUser N/A N/A
Framework service call android.accounts.IAccountManager.getAccountsAsUser N/A N/A
Framework service call android.accounts.IAccountManager.getAccountsAsUser 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
Framework service call android.app.IActivityManager.getRunningAppProcesses N/A N/A
Framework service call android.app.IActivityManager.getRunningAppProcesses N/A N/A

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

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

Queries information about active data network

discovery
Description Indicator Process Target
Framework service call android.net.IConnectivityManager.getActiveNetworkInfo 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

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
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
Framework API call javax.crypto.Cipher.doFinal N/A N/A
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Processes

com.sextest.test

com.sextest.test:main

com.sextest.test:s1

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

getprop ro.build.display.id

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
AU 1.1.1.1:53 www.baidu.com udp
HK 103.235.46.102:80 www.baidu.com tcp
HK 103.235.46.102:80 www.baidu.com tcp
GB 142.250.200.46:443 tcp
GB 142.250.200.46:443 tcp
AU 1.1.1.1:53 android.apis.google.com udp
GB 172.217.169.14:443 android.apis.google.com tcp
HK 103.235.46.102:80 www.baidu.com tcp
HK 103.235.46.102:80 www.baidu.com tcp
GB 172.217.169.14:443 android.apis.google.com tcp
AU 1.1.1.1:53 rpc.vnwx5.vip udp
HK 43.199.125.206:443 rpc.vnwx5.vip tcp
HK 43.199.125.206:443 rpc.vnwx5.vip tcp

Files

/data/data/com.sextest.test/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.sextest.test/no_backup/androidx.work.workdb-wal

MD5 f0c7cc69267caa1eee401c0c62d7754c
SHA1 07ad3b047fe9120bbe68a3b71f1caca1488c28e8
SHA256 9b608f329f2230cb704389abd8ce11f15ba2a09299933fd9d142049322c1d471
SHA512 0af22f1eb45832e14e3773c9d15a43ce3af00b7130efbb8d0760572019a73977121602b87a13b97186b61f723bfed383d1b802d916fc6523c44189c32c845de1

/data/data/com.sextest.test/no_backup/androidx.work.workdb

MD5 cbecc6055ec021d8e0c9e8788b76a766
SHA1 0bf48c0429447d499b222ad658c84f67b32968db
SHA256 7193be85d308a8229680414dd19432c13a92775b4e31d8b675e79bdeed13f8c9
SHA512 9e8449ccaa80bf70c742c6922aff084332355ff40b16d9ccf96f771b21292c9d098da3e8a8e881595a06f18127653bf0725e745e6a9306f38be02afda2896419