Malware Analysis Report

2024-09-09 14:35

Sample ID 240502-az7l3sdh93
Target d4ae2fca2e9b926ed00e143fe82d5a7a.zip
SHA256 341c5b8d7fda09706c39fdb959897e9a983f25bb06cfa9b1a96fbfe54854086a
Tags
ermac hook collection credential_access discovery evasion infostealer persistence rat 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

341c5b8d7fda09706c39fdb959897e9a983f25bb06cfa9b1a96fbfe54854086a

Threat Level: Known bad

The file d4ae2fca2e9b926ed00e143fe82d5a7a.zip was found to be: Known bad.

Malicious Activity Summary

ermac hook collection credential_access discovery evasion infostealer persistence rat trojan

Ermac family

Hook

Hook family

Ermac2 payload

Makes use of the framework's Accessibility service

Queries the mobile country code (MCC)

Queries information about the current Wi-Fi connection

Requests enabling of the accessibility settings.

Makes use of the framework's foreground persistence service

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

Queries the phone number (MSISDN for GSM devices)

Queries information about running processes on the device

Acquires the wake lock

Requests dangerous framework permissions

Declares services with permission to bind to the system

Declares broadcast receivers with permission to handle system events

Reads information about phone network operator.

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-02 00:40

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

2024-05-02 00:40

Reported

2024-05-02 00:42

Platform

android-x86-arm-20240221-en

Max time kernel

150s

Max time network

130s

Command Line

com.weruzepufalo.mavimibe

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.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

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

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

Reads information about phone network operator.

discovery

Processes

com.weruzepufalo.mavimibe

Network

Country Destination Domain Proto
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
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.200.46:443 android.apis.google.com tcp

Files

/data/data/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-journal

MD5 56eb039e48bd7b46f6087a7f9c144a6f
SHA1 cc3f91cf168bc8b85875c29a5b120f165c80888c
SHA256 a729d9b4055ee95bf26b7838f963fe1e0a94cbecfeb06ac23e6b65e8d9a7f457
SHA512 04f6a535d8c07dd508d16ff8abb1b46a85de93fdf3b70d6c0a910b343ed604308a63d7559a1fafcec976fcfc8c7e946d000c580aba643ec708864fa1f2dbd138

/data/data/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-wal

MD5 005af1388314252975611b7ef88c181f
SHA1 69b7df046011016c7fc493a0d3efeca0728e1102
SHA256 8e4587c88624ce0ae982ca0fde35f675580c38999a3e2e1e939b4298f46011af
SHA512 b7e3e6d77cefcdd9674d2b0c3b65fd485da5b93734774054a888d2d308cdc77342eeba9b91bf6dc7b6d6aa1c7f758c71632e864344b676181a3786aa3ae1cadf

/data/data/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-wal

MD5 f9a839ebf24ceda1a805d5e319929449
SHA1 68fb138aa58fdb6d68d68ddfaf2deb87d4f4137d
SHA256 60f4c1ff2bc5f05ac9aef7d41806ab6cf77042a19c888a5ab82714610a6b8cb8
SHA512 6f080cacd7335621e6483eb64cc4bb41a8f510f94de96c926f4c8c2f8c55b01db8c4160bb01847fbdc215554a137a1ff3f309280dc727f9e2fb66a760ab9d48f

/data/data/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-wal

MD5 54c49e03beebd661a283f21a9fd8e296
SHA1 d5776a6df894673def977556db784ab397782a78
SHA256 9c2925634fc0c209f363657aed51077906c093a9918bf331c13a5e097708f277
SHA512 3674269876038dab8a43133c8acd5233cae9193af9c3dcf772cc63642c9086c2310357f685a24b4ca1a7d09fa75d9b82caec1d5bf1784e7a326d0860427f718c

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-02 00:40

Reported

2024-05-02 00:42

Platform

android-x64-20240221-en

Max time kernel

50s

Max time network

156s

Command Line

com.weruzepufalo.mavimibe

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.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

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

Processes

com.weruzepufalo.mavimibe

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 142.250.200.8:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 null udp
GB 142.250.180.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.200.14:443 android.apis.google.com tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 172.217.16.234:443 semanticlocation-pa.googleapis.com tcp
GB 142.250.187.195:443 tcp
GB 142.250.187.234:443 semanticlocation-pa.googleapis.com tcp
GB 142.250.200.36:443 tcp
GB 142.250.200.36:443 tcp
DE 54.36.113.159:3434 tcp
DE 54.36.113.159:3434 tcp
DE 54.36.113.159:3434 tcp
DE 54.36.113.159:3434 tcp

Files

/data/data/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-journal

MD5 e51aa3b44a80e9807326103aa39ade11
SHA1 ec5f4a0d7834b55abdbceef881a83509a996e92f
SHA256 fc65c37b293c28e51b4ab5f8a7c9ce0677ff8ac3627302e6abe6f13bbacf2c27
SHA512 451403238e9429e29b6a71a2df613d4470cc56bdaf205f09536782e2c8a62f04a52d2eab8bceb3f2add43f6122284aa72380c82794ed9b444b418b65772507b2

/data/data/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-wal

MD5 4cdc56aa44bb5f840f72e38c92e049b4
SHA1 1a357c3dc3c6373a80751f9ca7087bc1bbd8063d
SHA256 200732f660384534e8c107e029167e6393a52708cebffd7ca415d2221acfb479
SHA512 89faa039b00be8474f19d5a53fd9004505126473d010a201c307ab6029aa843618b9b6e9d28f0e509b06aff316dcdf252c13bbe5782a47b47c1734bde4f59172

/data/data/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-wal

MD5 f5cbb20496e5e797c186810cb081aab3
SHA1 4f95587490d273f78348aa3ef658c5c4ebb7c7fb
SHA256 cf1d7751d8c25e4196ceb0683b0468e053a9056a0a1a95fb949b2c937e154557
SHA512 0dc0551e5cf6b05e5c92db939958b3ddd1eb310bd8896a1bb22b7078df2d98b5584fcc9f3bd51a25a366752a81fe49f2de68162ae9cb1228e51ff1c418820a6a

/data/data/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-wal

MD5 c638599cb4284a0bf698c0992b5c7fef
SHA1 fad33c3905b4270608b1919fbed183ddea222c96
SHA256 945c5d0d8ed20580d4f02bc30344cb3019eedce108c26f8a257189fb8496e4b9
SHA512 8cd86e802ecf790e950186e5c756385b48c216b872c649e3b4114fb82305a4b352d61770092804cfcbc63ee4c9055afbe671ac966985fbccfab889ebf86a1138

Analysis: behavioral3

Detonation Overview

Submitted

2024-05-02 00:40

Reported

2024-05-02 00:42

Platform

android-x64-arm64-20240221-en

Max time kernel

150s

Max time network

160s

Command Line

com.weruzepufalo.mavimibe

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.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

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

Processes

com.weruzepufalo.mavimibe

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.200.10:443 udp
GB 142.250.200.14:443 udp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.201.110:443 android.apis.google.com 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 142.250.200.4:443 tcp
GB 142.250.200.4:443 tcp

Files

/data/user/0/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-journal

MD5 b86c26564ac0f01f707ba13f4cb5cacc
SHA1 a04220c98c42f87b21e9c2aa7f0cbac32bed3c8a
SHA256 15797754fa100196767a1e530d2cfffc9cf013cd7a718776d3b4d3ae94821f9a
SHA512 b9019103fedc3bf0bfed31c5c2f5f3d744b11ffb9b0835ba3791133de8eddba0defdd0a26f4beafd767b8e7d2623c059d5df236fb30044a4c07665bafd0c3bb6

/data/user/0/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb

MD5 7e858c4054eb00fcddc653a04e5cd1c6
SHA1 2e056bf31a8d78df136f02a62afeeca77f4faccf
SHA256 9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad
SHA512 d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

/data/user/0/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/user/0/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-wal

MD5 b9a00f0cd305f82ab6311049e44c6cf6
SHA1 846e47018a77e0694c4bcfa5fdfa675eabd31fe2
SHA256 a7eaa5838db7515a89debac5912cf38c03c9859067c24c98fc754055bc19c64a
SHA512 9c0ebd46775d17070457852e7f02249f07b51232d255745def4481cbe8f43757c46f9e1349a6f8586024f850bc0901c68de73be94978b5d493f211c798bd61d2

/data/user/0/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-wal

MD5 b37f8e153e203a1f19443c042ba75565
SHA1 9a28d942072a3967b97c6989cbd58541f88580cc
SHA256 db26574f3fec15d7426a35e2a321724a2604bc73acb02d5f644b8f51fc4d703f
SHA512 d8ac3950d4b4826eb365417ea682cecfd5b4aff678afbaa7b4777fe2460e1ffadfa785a301f799ea5046271d7c61dd6f4402f072e4c4281a00494c3fe5f57c63

/data/user/0/com.weruzepufalo.mavimibe/no_backup/androidx.work.workdb-wal

MD5 590263bdd3cf08ab2d12a54e83796a50
SHA1 923eb6e7f8e06406737674555f9092014c6d1dff
SHA256 efdb19a1afa093482242700a94e2cf82248f78058657b48e1802688aae039911
SHA512 4c78484d68d17aaf6e43a61e4b1cad228dc1efa65d5369b9699c3cfa49b44b40924152c1f8f1f7bd02c37d04ac7660deca4cfbe20e5c06ae94843907b373478f