Malware Analysis Report

2024-09-09 14:36

Sample ID 240502-bme7qscf8z
Target 341c5b8d7fda09706c39fdb959897e9a983f25bb06cfa9b1a96fbfe54854086a.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 341c5b8d7fda09706c39fdb959897e9a983f25bb06cfa9b1a96fbfe54854086a.zip was found to be: Known bad.

Malicious Activity Summary

ermac hook collection credential_access discovery evasion infostealer persistence rat trojan

Hook

Ermac2 payload

Ermac family

Hook family

Makes use of the framework's Accessibility service

Queries the phone number (MSISDN for GSM devices)

Requests enabling of the accessibility settings.

Queries information about the current Wi-Fi connection

Makes use of the framework's foreground persistence service

Queries information about running processes on the device

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

Queries the mobile country code (MCC)

Requests dangerous framework permissions

Reads information about phone network operator.

Requests disabling of battery optimizations (often used to enable hiding in the background).

Declares broadcast receivers with permission to handle system events

Declares services with permission to bind to the system

Acquires the wake lock

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-02 01:15

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 01:15

Reported

2024-05-02 01:18

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.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

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
GB 216.58.212.234:443 semanticlocation-pa.googleapis.com tcp
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 142.250.200.14:443 android.apis.google.com tcp

Files

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

MD5 757ccbff83bc7922878afbd3e31fbbae
SHA1 b3a86826808bfc71af9c9d74bd939d45fca7902f
SHA256 42ea2057d5a23a3e64e525d391c155e9f04530de1aaff0f143ac73391a002932
SHA512 b596622e053b82f7f99b904a336a1aab8e8e8d7edbca60d5866a0a0b426754a2f8c220b37c05fa646259213bb8c2757905ee146476a8ca6a650fb8acc4b33fbb

/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 e588f2595eeaa037178ab450cd912766
SHA1 45ed7e65b9de75533a5e10d20fd9743ec63d0e88
SHA256 92b7c3f2d0ad79a1b2e928c1d5e0ab5a19f19ffd4462ab7758d45038fcd93138
SHA512 b65507633a777a09d9149b5d9ddf3cdb15e379fdec83aa4fbb971e302b59ac898ca7a2844737ad7e31c94387beaa183d61e58b1c74f480215df2ab19cd5afda7

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

MD5 c54c8ebd1debada387bf64c6aac67b62
SHA1 a507ae236ea391b4ac0567d7ce8516c7bf0c2b33
SHA256 f49d7d408c62005886dfa89f6e450f371b78ffe39badaba8f971150c66159576
SHA512 483fff934a0a5f6a5da4336838add1777cb98dae833c75ffda80f5869e4fef7b9e67cef7fee91f69d35abfddfb891344117f5a1f3469972527e215b8ebaaa70a

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

MD5 889263015ca1a4685a7266b0ac270fdb
SHA1 4b2eb37a3324a93193e35b3f694c369a8751ec13
SHA256 f1820d553d44cf69d1b1871a7f98ecd13965c81055d3a29b73cd5a0088647b1f
SHA512 48c2b7bbd091c654d0d58cb13e74d8f0203eda19fd31d0a00b81f91118a893c1d4db78d01cf4ebea2e58fb9c8f0f13e86dfca7582c1126beedec4cd388e89d2c

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-02 01:15

Reported

2024-05-02 01:18

Platform

android-x64-20240221-en

Max time kernel

150s

Max time network

135s

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.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

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 142.250.178.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 142.250.179.234:443 semanticlocation-pa.googleapis.com tcp
GB 142.250.187.202:443 semanticlocation-pa.googleapis.com tcp
GB 216.58.212.228:443 tcp
GB 216.58.212.228:443 tcp

Files

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

MD5 c4e0978900ec0e941dc1b4656620e6ee
SHA1 b6c01dd937a8e6f0129474dd685f7ced665c0b22
SHA256 9f8b72b6933d5269e505072896ff6893a21b9db8a4387d1185af3a9acb1be94c
SHA512 f02a2dcbc62be62d6e8158efd5f07f5cf27d6c160c78bc77b12792ee2d8dc937baffa7da885e56a06f53a1a168a4e8854acd4cdf25ea484047da061471c23be5

/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 228df49a02444621008d833a54f53acd
SHA1 66164fef1b2297dc0813916dde1772ca33139a3b
SHA256 0bdde56d52cfedad6638de3001b9c8e95a010b4d21346e0fe473b5b2162e8d6a
SHA512 fcde851d9751ad4ce8df8a97c3ef91656377ee6283abe04cd835088b626fb33114106df2d34e232db3c9dd824a8b6a16917058adca7fe95907c681e07f27bda9

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

MD5 1d2e87764dbc9c5570972ab93465f8cf
SHA1 5805c216a6525d99666073a357b311e2c5c1a066
SHA256 b655bb815ca796be5442f0540335fab794f643c5062b3c6f1295e5c88193e3b5
SHA512 6597fba5d66b4ef42fe6bde9c05d2f5863fde50dcf60a9223c45d317ae626ba0790b9a2c232b0757fe179ff545d41443f848e61c1c943ac0e4de0ee47ff38bcf

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

MD5 4259a5a12e6585af7d836b2c43143acb
SHA1 16f406573e04021ecabed2d78a98a393412fd5cf
SHA256 43111e1097e8ffdd0c848db5c8ae415e0b62031e25612b7f9d7e124348a32238
SHA512 3557dcd3a3fe4cb17017f674d621e370a758487a536e4d5613138785f7a617f48381752e695c5e8c35971c3753b25b12b30ebe9820140e8659135b6ac66aae67

Analysis: behavioral3

Detonation Overview

Submitted

2024-05-02 01:15

Reported

2024-05-02 01:18

Platform

android-x64-arm64-20240221-en

Max time kernel

156s

Max time network

148s

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

Requests disabling of battery optimizations (often used to enable hiding in the background).

evasion
Description Indicator Process Target
Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS N/A N/A

Processes

com.weruzepufalo.mavimibe

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.200.42:443 udp
GB 142.250.178.14:443 udp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.204.78:443 android.apis.google.com tcp
GB 216.58.204.78:443 android.apis.google.com tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
US 1.1.1.1:53 null udp
GB 142.250.200.36:443 tcp
GB 142.250.200.36:443 tcp

Files

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

MD5 9dcf1be560b817ee41effafa8653344a
SHA1 7e784973e196eb805f28f047d3fda6210dad3d6a
SHA256 ee51c2ab9f04ad4d672bfb879c8de1013ab3d53f49ba295ada203c4b8d7bca80
SHA512 880b96c434c66a0ded08267285d64c5b6bd6bc753ba65697dc7105200d1cbb8a8ecc729610d185e0265345454d186bb14abe06b7cb4cf010e72ed823c28e3bac

/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 39150dadb33aa2153be9321cf87bca24
SHA1 e49b4acaf9c6ee3d02187624c18af1d22c1c8a0d
SHA256 97a60f64fe2cc996cf20503f85aa27aa6549a2d89fab81017bc29db37a634ba6
SHA512 0341a0b68c2fcc998752260c12209c1fec23e76dd8bb459fddf41657df07a34b33f7a45b7b1f9f80017cd832476673f491a1bda625204a91594aa216ce4255db

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

MD5 f8d88b69c695cd371b1d71af81ef6b2f
SHA1 ff1f17171eacbac48c64f0d16b3b4795bcb61339
SHA256 3998c8992e30b42f75d27f1e0d9693950d8f1c6e8e53398e93cdfaaeeea1351d
SHA512 8a6b007d0632ea0eef9c941dd99808a2753ae3c7156adad30aca873817306901413a1bdd1a9c5c7ae6133307091c543801070bec40d22209dfbf90254c57d500

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

MD5 32710917634a73f9d757fde8ff817724
SHA1 234821aa0228abf1ed0cdca53f17bd10779673b9
SHA256 93f8479e3de1ae549c083ee2bf0f756bdea6557bb85fd4bbe14570da7cc1ebf7
SHA512 805ede0cabe91df51f4f87dd020d0a558b3810a20a582364d523e109cad6ee49786bdc0e94a0074e9fc18f9bb4201f1a35f1a2300bd6bf69d022e6958f0476f6