Malware Analysis Report

2024-09-09 14:33

Sample ID 240519-k4npwabe4w
Target d6bad24d0fb7e89ec5338bf8267338fd4dfdc1906b6081833bf11a7a167786d9.zip
SHA256 d6bad24d0fb7e89ec5338bf8267338fd4dfdc1906b6081833bf11a7a167786d9
Tags
hook collection credential_access discovery evasion execution impact infostealer persistence rat trojan ermac
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

d6bad24d0fb7e89ec5338bf8267338fd4dfdc1906b6081833bf11a7a167786d9

Threat Level: Known bad

The file d6bad24d0fb7e89ec5338bf8267338fd4dfdc1906b6081833bf11a7a167786d9.zip was found to be: Known bad.

Malicious Activity Summary

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

Ermac2 payload

Ermac family

Hook

Prevents application removal

Makes use of the framework's Accessibility service

Queries information about the current Wi-Fi connection

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

Queries information about running processes on the device

Queries the mobile country code (MCC)

Requests enabling of the accessibility settings.

Makes use of the framework's foreground persistence service

Queries the phone number (MSISDN for GSM devices)

Requests dangerous framework permissions

Reads information about phone network operator.

Declares services with permission to bind to the system

Declares broadcast receivers with permission to handle system events

Acquires the wake lock

Schedules tasks to execute at a specified time

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-19 09:09

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

2024-05-19 09:09

Reported

2024-05-19 09:12

Platform

android-x86-arm-20240514-en

Max time kernel

40s

Max time network

185s

Command Line

com.kexomuzuvudifo.gazaka

Signatures

Hook

rat trojan infostealer 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

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 running processes on the device

discovery
Description Indicator Process Target
Framework service call android.app.IActivityManager.getRunningAppProcesses 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.kexomuzuvudifo.gazaka

Network

Country Destination Domain Proto
GB 142.250.200.14:443 tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 null udp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp

Files

/data/data/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-journal

MD5 505d18a98be27f237cfda7ca9c0af13a
SHA1 8275855fe3107db70bb3ef291f5ea08262343751
SHA256 28d23045ac7e29f1f67dc7fe3375fc20ca88ff2e86755f08963e096d72a2e55c
SHA512 0d645b84e3ad7227868263e79c92273bacf368227ee6c10945a120e8210559842c0ce93ce5c889cc1d4588006c53a4008be3c83e80de6257ae1cd4d921d51f60

/data/data/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-wal

MD5 820e0d7853bc18b2beaa6705f35d7b3d
SHA1 c6d79d6d2afc9f6bbbfb8196c84956e6052e64f3
SHA256 0a2989a233633c9d84de9428867977237ed3a8538d424e2e968eaf338bb42279
SHA512 5ec28711f2dc04f59034006aa028891f5c0df0e5a30cedfaf40bdf83d66c92b964e292f815cdf8f1b6cc068658e449512b0ed0be243b11010296835fca5b9c11

/data/data/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-wal

MD5 17afcb43f4f48d62f9e2782b4b3f7b49
SHA1 aca7e28a936787d86822c640875c347d3ef3d8c8
SHA256 e5fa2de6206fb7e16c6f19006608c1085d0842051f0431dbdb138d1d0e9fbca3
SHA512 81cfe39c79a9b3d8dcccb66744f77dc01241dfd92c9994818adfa072f9f8f337fc21844aa04eb8a22dc8206cb12ccd92fc5e43bcadf1c6e566d64fbd674dc836

/data/data/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-wal

MD5 52feaab34c18b3eac15dcc88ed9bb049
SHA1 d598ff49f396cc947ec60e37ca5b1f6c8b98161b
SHA256 8dbc6ae634a4066a9e2303a624a8596b06b3ae9465b19706414c130856423d5e
SHA512 64d90e16ffc3b621529e521381e9c21080b77a34350eda90c4fd8dc6074d1e46717f9f94d42ef072b42da366864f48fc126a7dd1a29d12cc3e1ac4457ff54ca2

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-19 09:09

Reported

2024-05-19 09:12

Platform

android-x64-20240514-en

Max time kernel

179s

Max time network

152s

Command Line

com.kexomuzuvudifo.gazaka

Signatures

Hook

rat trojan infostealer 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

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 running processes on the device

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

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.kexomuzuvudifo.gazaka

Network

Country Destination Domain Proto
GB 142.250.179.234:443 tcp
N/A 224.0.0.251:5353 udp
GB 142.250.179.234:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.178.14:443 android.apis.google.com tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
US 1.1.1.1:53 null udp
GB 142.250.187.200:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 142.250.178.10:443 semanticlocation-pa.googleapis.com tcp
GB 142.250.178.4:443 tcp
US 1.1.1.1:53 www.google.com udp
GB 172.217.169.36:443 www.google.com tcp
GB 172.217.16.238:443 tcp
GB 142.250.179.226:443 tcp

Files

/data/data/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-journal

MD5 7d5b1b27b341a67deceb6f24ecf8b302
SHA1 39b849c835d9f476d329b1c075aa56e5785558d2
SHA256 f104ac6d8936c3cb7154c87f6a32b5a19b50b406da57e2cae24d71567182639e
SHA512 bc5dc257466b9206f6474275d082362b62d90362d375a9a2447e905e8f34c3e1d79a7082074b51f95970ec4a5bea1515a845984cbf6327718718e1279b9cb749

/data/data/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-wal

MD5 605e5334a000cb2beec1754ca39f8722
SHA1 ce180afa9f18ca02528d310fcb2ae3a8b71287f3
SHA256 3f8ac15b3129d7008085f1722a1325419bc4599fcae58b96272f610fef3411ef
SHA512 a411722fa1b2df69a487f9ab33c25960a40b9dca68dfe8e24d1cf3d79445ab2a4348c4f20d5555b62e0e4bb946ceba3b8f176764ad4cec34045a39eab156370a

/data/data/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-wal

MD5 b3a2554fba981fa21d2077f47d92fe02
SHA1 f25cb3a8f466bdd35c1432381b02bb19134b415d
SHA256 18f9104fc06594d2fa03cee3c089e66ab895c2257d17752b0512526916aaaf52
SHA512 7823d36dc948e0a4faa602a70b2826e70671cfbd2ad51c10fcc058eda5e638cd70dfdf97ba8806ef0b76a9413d066f113c365afe51ab03319f4edf7afd664c8f

/data/data/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-wal

MD5 6e819559bb0077085c893c56eaf0fc5c
SHA1 851458c4d5111da250a06f2759eb6b71338bab39
SHA256 8c3298c5840f673ccd702a98b13f4deb71f0236e9e0daa64ffd7936c222661c4
SHA512 39bc5da106c3fad390543b86d2662f3244e73af20271e25ca949c53c3ce0980766b7ac13be7ced96f311d4fb2b87199eb82c026b1a9410ee97abb45f594c3297

Analysis: behavioral3

Detonation Overview

Submitted

2024-05-19 09:09

Reported

2024-05-19 09:12

Platform

android-x64-arm64-20240514-en

Max time kernel

52s

Max time network

186s

Command Line

com.kexomuzuvudifo.gazaka

Signatures

Hook

rat trojan infostealer 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

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 running processes on the device

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

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.kexomuzuvudifo.gazaka

Network

Country Destination Domain Proto
GB 142.250.180.14:443 tcp
GB 142.250.180.14:443 tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.187.200:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 null udp
GB 216.58.201.100:443 tcp
GB 216.58.201.100:443 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp
US 1.1.1.1:53 www.google.com udp
GB 172.217.16.228:443 www.google.com tcp
IN 139.59.32.225:3434 tcp
IN 139.59.32.225:3434 tcp

Files

/data/user/0/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-journal

MD5 7cd9d156b1232ee3da65f31faaf5362f
SHA1 481c2e4cde693590c37e7d56d794ce9d5bb0a355
SHA256 756763542613ecfbafa0ffb5e350aa78664926526ca782c149b38bf70a99649c
SHA512 dc196a03c4ee8e45ec148c4ebd9b886453be0b1d9bcb77fdbdd71cda3d3f326dd1a74651ae88d6b0a6d3642087fcc2f4310d87288b9539b8c67787ea90e9dfca

/data/user/0/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb

MD5 7e858c4054eb00fcddc653a04e5cd1c6
SHA1 2e056bf31a8d78df136f02a62afeeca77f4faccf
SHA256 9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad
SHA512 d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

/data/user/0/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/user/0/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-wal

MD5 b459158d36bb97991c2d5c345799405d
SHA1 41457c18d0ca9012659d2db340efbf9a26284b8d
SHA256 e525d5c6e7329cda96707c94e6eca0dd7b693cec9adaa6250757928106677491
SHA512 7560a9050f74c9d7cc23d38804263132e5079ee887be47aebd4d0276ce65e98542ea863c1b2917821a81d4a1a818b1fcca36376079d5db05235e81499deb812a

/data/user/0/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-wal

MD5 872c349fe99570a56520c6a88750dd13
SHA1 cbd51d1f7d7052b7829192f585a0404613cb0133
SHA256 4f6c4722dee552db7cf097ca274fa5ebd13bd358411cce490947d879e4becbe4
SHA512 7905c2ec10ad8373e8f607b372a3f85da52321ad8a435ad3641674eb6389088c605d02dd1ef1aff9e0de4615f7de035eeaabdd2f83542312fca97e31a9a43816

/data/user/0/com.kexomuzuvudifo.gazaka/no_backup/androidx.work.workdb-wal

MD5 994605c5284abbb65dabd6aa7c5325de
SHA1 a4956e0bc26cfcbcb00e957c02cb255db0f8bf3e
SHA256 1086285ebb2bd45144403e0166d8993cca39b7965608bf8b60641d76425979b6
SHA512 c21b05e0634a2b57b2bb43a86ff924eef71c5de24269310a6825004459641a16b7755d2997c960f0a93436bbc3920733ff2397939624f62e97074820f3ee3b27