Malware Analysis Report

2024-09-09 14:00

Sample ID 240502-cmm31seb5x
Target d5ca7ba75cfb8fd76929c1b8f6547780d8305a6654b6423124d380ff59b0d1c9.zip
SHA256 d5ca7ba75cfb8fd76929c1b8f6547780d8305a6654b6423124d380ff59b0d1c9
Tags
ermac evasion stealth trojan discovery persistence collection credential_access impact
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

d5ca7ba75cfb8fd76929c1b8f6547780d8305a6654b6423124d380ff59b0d1c9

Threat Level: Known bad

The file d5ca7ba75cfb8fd76929c1b8f6547780d8305a6654b6423124d380ff59b0d1c9.zip was found to be: Known bad.

Malicious Activity Summary

ermac evasion stealth trojan discovery persistence collection credential_access impact

Ermac family

Ermac2 payload

Makes use of the framework's Accessibility service

Removes its main activity from the application launcher

Makes use of the framework's foreground persistence service

Queries the phone number (MSISDN for GSM devices)

Queries the mobile country code (MCC)

Requests enabling of the accessibility settings.

Loads dropped Dex/Jar

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

Queries information about the current Wi-Fi connection

Acquires the wake lock

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

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-02 02:11

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

2024-05-02 02:11

Reported

2024-05-02 02:14

Platform

android-x86-arm-20240221-en

Max time kernel

4s

Max time network

142s

Command Line

com.camavoyaxiwokocu.huvusuwi

Signatures

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Processes

com.camavoyaxiwokocu.huvusuwi

Network

Country Destination Domain Proto
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 142.250.200.42:443 semanticlocation-pa.googleapis.com tcp
GB 142.250.179.238:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 172.217.16.238:443 android.apis.google.com tcp

Files

/data/data/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-journal

MD5 f3cc92809aadedcbcdb15bda4c23e681
SHA1 08387b66b7a4845926f433111e6664e67992fffb
SHA256 3c7b2a7fa07511c81da42f094b4064903e3c1adf3fc8db6bd0c2c1ac1c148e5b
SHA512 056fe0e32ff1a43bce8a27596ea4b63174f16a968e10edb60fdd0b5e7e7e0c05fbce3f8ddbfdbd6902d39b2c07b801c6323549a0491a224dcbdf75c495078e79

/data/data/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-shm

MD5 cf845a781c107ec1346e849c9dd1b7e8
SHA1 b44ccc7f7d519352422e59ee8b0bdbac881768a7
SHA256 18619b678a5c207a971a0aa931604f48162e307c57ecdec450d5f095fe9f32c7
SHA512 4802861ea06dc7fb85229a3c8f04e707a084f1ba516510c6f269821b33c8ee4ebf495258fe5bee4850668a5aac1a45f0edf51580da13b7ee160a29d067c67612

/data/data/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-wal

MD5 e529dc9cbb97606004a92d30ad4024eb
SHA1 649b7f0add7040122d7d1eaf2599399a48fe378c
SHA256 b3fb08744eab0f48cea67a30c2ced13652a105770f95eb5e0d2efe840aaf8ee1
SHA512 ff95ed81b926bf3cbaedff8fc39edb0ed25eab47de1a36ac3a750ae5805ec6bf6f386d87cd6ef172d5fe31b20d09f6d2d0b28cf05ad448d7b251fc7b9397b31a

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-02 02:11

Reported

2024-05-02 02:14

Platform

android-x64-20240221-en

Max time kernel

6s

Max time network

153s

Command Line

com.camavoyaxiwokocu.huvusuwi

Signatures

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 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

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Processes

com.camavoyaxiwokocu.huvusuwi

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 142.250.180.8:443 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 172.217.16.238:443 android.apis.google.com tcp
GB 216.58.204.68:443 tcp
US 1.1.1.1:53 www.google.com udp
GB 216.58.204.68:443 www.google.com tcp
GB 142.250.187.238:443 tcp
GB 142.250.200.2:443 tcp

Files

/data/data/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-journal

MD5 0ef9d81637895131c7198ac9b2bbb91c
SHA1 dfb30dc6335e7e837b78c59ecce7d1ce06417562
SHA256 6b742d6d712f6e353c4cfea610c1e7915408e15ed024ebbcb293baa20ecff7a2
SHA512 1fcd075680aa4ba96985c719fbcf3f0b64b539d25943b5bc5f0ac9fd694d9f19c7ecf28b4042f95cf97f9b25f0595489c00bcd584fe7adf02421c86dcabd44d6

/data/data/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb

MD5 f2b4b0190b9f384ca885f0c8c9b14700
SHA1 934ff2646757b5b6e7f20f6a0aa76c7f995d9361
SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
SHA512 ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

/data/data/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/data/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-wal

MD5 a4b9c94c04e4253b291c24973fd1376c
SHA1 76d1c1896a55c6a24bc90a2e93d898c2694e6f25
SHA256 1fa2d0adbc229a914e0ee6edcbc1f8cb36105850b4a0de59dbbf1ab5cc726424
SHA512 76523f210dc47b7feba4bc744a48d2e5ae99c3d2fd740bb44e3bebfdf4b2bd43f15900f65c623343fe8cf31fba3e7e1db9ea8a2589325b9abc911ab6fb3da241

/data/data/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-wal

MD5 accd9ee74ee87e8a112c305db774e5b7
SHA1 dd307cce413c101edd937b7555650510c6e290d8
SHA256 85fbd1e59a39d7db093d6c8993aee51f076bdbbe00b7f98c7e899bcb52137101
SHA512 efbdbaa6a93c49fc3af6d29a0c70bf4609c47d29a5d29dfe2e5add23d8b42ab99061e5e7c5aca30ccc140631d49337df758929c5b818c0d057e621929b6a2b8e

/data/data/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-wal

MD5 73f9e1c02a7b68436c9065e52f5ccd06
SHA1 06be2dd7e5b9ccea1dce37df8558bc4ba433cdca
SHA256 8821f3797ce4495e0dc636e444142f11b53d1d401d9d219fb7fe20b8609a0c18
SHA512 a370163bd77c3a5057e1fb74eaba8821bf960929d995a294e5c60321f0ea9537818d934c02becf10dbda357e23586381fc3ef94d581506494b8acde35be1aa8a

Analysis: behavioral3

Detonation Overview

Submitted

2024-05-02 02:11

Reported

2024-05-02 02:14

Platform

android-x64-arm64-20240221-en

Max time kernel

54s

Max time network

131s

Command Line

com.camavoyaxiwokocu.huvusuwi

Signatures

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

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /system_ext/framework/androidx.window.sidecar.jar N/A N/A
N/A /system_ext/framework/androidx.window.sidecar.jar 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

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

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.camavoyaxiwokocu.huvusuwi

Network

Country Destination Domain Proto
GB 216.58.201.110:443 tcp
GB 216.58.201.110:443 tcp
N/A 224.0.0.251:5353 udp
GB 142.250.200.10:443 udp
GB 142.250.200.14:443 udp
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 142.250.187.232:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 null udp
GB 172.217.16.228:443 tcp
US 1.1.1.1:53 www.google.com udp
GB 142.250.180.4:443 www.google.com tcp

Files

/system_ext/framework/androidx.window.sidecar.jar

MD5 bdf3529e80318eb14e53a5bf3720c10d
SHA1 25c9ace4b1af6e80ebb2572345972c56505969ba
SHA256 bbc8300dd1e9cd08de8f66560c1ac2c928615b72b51cef9649f88974f586d64b
SHA512 48b9c2d01171bb651b9b54826baa51f4add48431a3efd8ceb5f7cc3bcd6f8f37edf47fabb24349dd15b3a02329cd450f90a8d164bf4f8dfae554bf3b35a8a55b

/data/user/0/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-journal

MD5 288a883fa6e4a12171a68e0a737f4a3b
SHA1 d47fdc93237cbe95102107832bfb215ca7cfe25d
SHA256 334d46ebc0465d144100de97dbb04854a72ef9cf1cf9cc92557e0d0827662d2a
SHA512 422fcc1b44a61ca3c7af976063e2f0295945fbc42c036ec7b2c7e4fab7a8ac8ac1ea30513b4a1f04ebb8e896ed753172889b27ce380f6fe0a3d7736407a19bbc

/data/user/0/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb

MD5 7e858c4054eb00fcddc653a04e5cd1c6
SHA1 2e056bf31a8d78df136f02a62afeeca77f4faccf
SHA256 9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad
SHA512 d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

/data/user/0/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-shm

MD5 bb7df04e1b0a2570657527a7e108ae23
SHA1 5188431849b4613152fd7bdba6a3ff0a4fd6424b
SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
SHA512 768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

/data/user/0/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-wal

MD5 df52e5b9bc91c93d209bdd805ad877f0
SHA1 51f1b1769ed4dd78e6d1189886c45f8dc0e7a8ee
SHA256 cd0c1513554ee9e912771dfdb623a2329392a56a3018a189445b09cd3147396a
SHA512 d82bcf71f888dfe1798e90842c3a7373aa4790f3085e889bfbe4db7cb2361b0a32d2c251b98fbb11c2e6d7993b7cd6813652badf7a6dae6dde1dcfc5f15bc337

/data/user/0/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-wal

MD5 5dcc588a7f90b62f840a7bbf40ba29bb
SHA1 84129862b09aa8f4b2f7a51fa4e3b35a3d70f89b
SHA256 9b285156a89d97b7a45535ce97110e5f6da5e9ad48baafa3aeaaa2b2d36f5e4c
SHA512 de114e26373e11cdf9bc2fc3d69c699ac2642faf7aaec6affe7e7f01e03926d1fdfc891c4931ea587892776f96c3b35cc3501895c1ead3ddc325a79c2db0db9a

/data/user/0/com.camavoyaxiwokocu.huvusuwi/no_backup/androidx.work.workdb-wal

MD5 ac84b5941f0c7da4e374d752db4ca552
SHA1 7c9bf6696f4c98c867df01c8bea967f964b33892
SHA256 797b0c40d942297ba1c200dedee5034149c111360a0a19d971be5ce385e591b6
SHA512 2569c368f77acfcde6026346520070c3d05804b782957f2d0e6afa81b34cb989eb402c39efb0da0af10559b95b65b054d953fcf8ce6e3c397fe11af5c594500c