Analysis Overview
SHA256
ebc504716f1b01b052d09077c369b95386ba0ef1a5c6f4c552717412a41460f1
Threat Level: Likely malicious
The file yutian.apk was found to be: Likely malicious.
Malicious Activity Summary
Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)
Checks memory information
Queries information about the current Wi-Fi connection
Registers a broadcast receiver at runtime (usually for listening for system events)
Checks CPU information
Obtains sensitive information copied to the device clipboard
Queries the mobile country code (MCC)
Requests dangerous framework permissions
Queries the unique device ID (IMEI, MEID, IMSI)
Checks if the internet connection is available
Reads information about phone network operator.
Uses Crypto APIs (Might try to encrypt user data)
MITRE ATT&CK
Mobile Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-23 12:13
Signatures
Requests dangerous framework permissions
| Description | Indicator | Process | Target |
| Allows an application to write to external storage. | android.permission.WRITE_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 |
| 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 |
| Required to be able to access the camera device. | android.permission.CAMERA | N/A | N/A |
| Allows an application to record audio. | android.permission.RECORD_AUDIO | N/A | N/A |
| Allows access to the list of accounts in the Accounts Service. | android.permission.GET_ACCOUNTS | 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 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 application to read or write the system settings. | android.permission.WRITE_SETTINGS | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-23 12:12
Reported
2024-05-23 12:33
Platform
android-x64-arm64-20240514-en
Max time kernel
113s
Max time network
148s
Command Line
Signatures
Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)
Checks CPU information
| Description | Indicator | Process | Target |
| File opened for read | /proc/cpuinfo | N/A | N/A |
Checks memory information
| Description | Indicator | Process | Target |
| File opened for read | /proc/meminfo | N/A | N/A |
Obtains sensitive information copied to the device clipboard
| Description | Indicator | Process | Target |
| Framework service call | android.content.IClipboard.addPrimaryClipChangedListener | N/A | N/A |
Queries information about the current Wi-Fi connection
| Description | Indicator | Process | Target |
| Framework service call | android.net.wifi.IWifiManager.getConnectionInfo | N/A | N/A |
Checks if the internet connection is available
| Description | Indicator | Process | Target |
| Framework service call | android.net.IConnectivityManager.getActiveNetworkInfo | N/A | N/A |
Queries the unique device ID (IMEI, MEID, IMSI)
Reads information about phone network operator.
Uses Crypto APIs (Might try to encrypt user data)
| Description | Indicator | Process | Target |
| Framework API call | javax.crypto.Cipher.doFinal | N/A | N/A |
Processes
io.dcloud.H5A305F922222
Network
| Country | Destination | Domain | Proto |
| N/A | 224.0.0.251:5353 | udp | |
| GB | 142.250.178.14:443 | tcp | |
| 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 |
| US | 1.1.1.1:53 | stream.dcloud.net.cn | udp |
| CN | 49.234.42.40:80 | stream.dcloud.net.cn | tcp |
| US | 1.1.1.1:53 | ssl.google-analytics.com | udp |
| GB | 142.250.178.8:443 | ssl.google-analytics.com | tcp |
| US | 1.1.1.1:53 | service.dcloud.net.cn | udp |
| CN | 115.159.204.155:443 | service.dcloud.net.cn | tcp |
| CN | 115.159.204.155:443 | service.dcloud.net.cn | tcp |
| CN | 47.100.61.181:8001 | tcp | |
| CN | 49.234.44.193:80 | stream.dcloud.net.cn | tcp |
| CN | 47.100.61.181:8001 | tcp | |
| CN | 124.220.57.196:443 | service.dcloud.net.cn | tcp |
| CN | 124.220.57.196:443 | service.dcloud.net.cn | tcp |
| CN | 115.159.41.92:80 | stream.dcloud.net.cn | tcp |
| CN | 110.40.169.99:443 | service.dcloud.net.cn | tcp |
| CN | 110.40.169.99:443 | service.dcloud.net.cn | tcp |
| CN | 124.220.154.50:80 | stream.dcloud.net.cn | tcp |
| CN | 110.40.181.119:443 | service.dcloud.net.cn | tcp |
| CN | 110.40.181.119:443 | service.dcloud.net.cn | tcp |
| CN | 150.158.157.83:80 | stream.dcloud.net.cn | tcp |
| CN | 111.229.199.57:443 | service.dcloud.net.cn | tcp |
| CN | 111.229.199.57:443 | service.dcloud.net.cn | tcp |
| CN | 43.142.22.58:80 | stream.dcloud.net.cn | tcp |
| CN | 43.142.67.81:80 | stream.dcloud.net.cn | tcp |
| GB | 142.250.187.196:443 | tcp | |
| GB | 142.250.187.196:443 | tcp | |
| CN | 43.142.150.110:80 | stream.dcloud.net.cn | tcp |
| CN | 43.142.166.20:80 | stream.dcloud.net.cn | tcp |
| US | 1.1.1.1:53 | stream.mobihtml5.com | udp |
| US | 23.27.132.60:80 | stream.mobihtml5.com | tcp |
Files
/storage/emulated/0/.imei.txt
| MD5 | c12ff89dfabd8995c6e05bbc0cfbe652 |
| SHA1 | dc11e7e0a809c87649022626f60d6b532015f790 |
| SHA256 | 286f5c151fda257dfb6b300515b424625b3de60f21994ee2c9d271a2032fba8b |
| SHA512 | 4fa0c2be677dd9cbce41a41e83ee8be1020b5ac3821b84921c5f65bde6a82834b0b72256b4002341d1bd3a9a289202b115ab76f9569bebd5290a063fd8e088d5 |
/data/data/io.dcloud.H5A305F922222/shared_prefs_ext/test_app
| MD5 | e56eb29ec6c970d5485d64a3f4bfca5a |
| SHA1 | 458de6c27fae98343c477bc1e9860341b9035911 |
| SHA256 | e2a97bdb1c89df1e7c6fc4fff7071fd6e1dedadccda55992cf1fafb015fb7e01 |
| SHA512 | fa42677d300f74ea18e8f9bc99a5004f434902566c9d741d5974bd31e0885e8030f18cd439bfa941ee11d52a072a2c08d62fc62f345865a8d66a181464a4923d |
/data/user/0/io.dcloud.H5A305F922222/files/cnc3ejE6/eje3cnc
| MD5 | 585839d66722cfd02e40cb740cccb633 |
| SHA1 | 374c19200fee201b26d0153487a281a934615884 |
| SHA256 | 86a9bb4985cca6c9636c4fd071bef4b70ba7b3a5eb51af869a1299dc2b1574a8 |
| SHA512 | 09bbe1bf1455861fd4732f2d1945c84bac34090906ac2fab75d144c22ffcf6bc585c8209e94a2b1919c8402df53966081a1af2993e12261ae4c4ac5568667d88 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-23 12:12
Reported
2024-05-23 12:49
Platform
android-x86-arm-20240514-en
Max time kernel
54s
Max time network
131s
Command Line
Signatures
Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)
Checks CPU information
| Description | Indicator | Process | Target |
| File opened for read | /proc/cpuinfo | N/A | N/A |
Checks memory information
| Description | Indicator | Process | Target |
| File opened for read | /proc/meminfo | N/A | N/A |
Queries information about the current Wi-Fi connection
| Description | Indicator | Process | Target |
| Framework service call | android.net.wifi.IWifiManager.getConnectionInfo | N/A | N/A |
Queries the mobile country code (MCC)
| 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)
| Description | Indicator | Process | Target |
| Framework service call | android.app.IActivityManager.registerReceiver | N/A | N/A |
Checks if the internet connection is available
| Description | Indicator | Process | Target |
| Framework service call | android.net.IConnectivityManager.getActiveNetworkInfo | N/A | N/A |
Queries the unique device ID (IMEI, MEID, IMSI)
Reads information about phone network operator.
Uses Crypto APIs (Might try to encrypt user data)
| Description | Indicator | Process | Target |
| Framework API call | javax.crypto.Cipher.doFinal | N/A | N/A |
Processes
io.dcloud.H5A305F922222
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 | stream.dcloud.net.cn | udp |
| CN | 124.220.154.50:80 | stream.dcloud.net.cn | tcp |
| US | 1.1.1.1:53 | service.dcloud.net.cn | udp |
| CN | 115.159.204.155:443 | service.dcloud.net.cn | tcp |
| CN | 115.159.204.155:443 | service.dcloud.net.cn | tcp |
| CN | 150.158.157.83:80 | stream.dcloud.net.cn | tcp |
| CN | 47.100.61.181:8001 | tcp | |
| CN | 47.100.61.181:8001 | tcp | |
| CN | 124.220.57.196:443 | service.dcloud.net.cn | tcp |
| GB | 142.250.180.14:443 | tcp | |
| US | 1.1.1.1:53 | android.apis.google.com | udp |
| GB | 142.250.187.238:443 | android.apis.google.com | tcp |
| CN | 124.220.57.196:443 | service.dcloud.net.cn | tcp |
| CN | 43.142.22.58:80 | stream.dcloud.net.cn | tcp |
| CN | 110.40.169.99:443 | service.dcloud.net.cn | tcp |
| CN | 110.40.169.99:443 | service.dcloud.net.cn | tcp |
| CN | 43.142.67.81:80 | stream.dcloud.net.cn | tcp |
| CN | 110.40.181.119:443 | service.dcloud.net.cn | tcp |
| CN | 110.40.181.119:443 | service.dcloud.net.cn | tcp |
| CN | 43.142.150.110:80 | stream.dcloud.net.cn | tcp |
| CN | 111.229.199.57:443 | service.dcloud.net.cn | tcp |
| CN | 111.229.199.57:443 | service.dcloud.net.cn | tcp |
| CN | 43.142.166.20:80 | stream.dcloud.net.cn | tcp |
| CN | 49.234.42.40:80 | stream.dcloud.net.cn | tcp |
| CN | 49.234.44.193:80 | stream.dcloud.net.cn | tcp |
| CN | 115.159.41.92:80 | stream.dcloud.net.cn | tcp |
| US | 1.1.1.1:53 | stream.mobihtml5.com | udp |
| US | 23.27.132.60:80 | stream.mobihtml5.com | tcp |
Files
/storage/emulated/0/.imei.txt
| MD5 | 273de349e814baef6d7f0dca20f90c8b |
| SHA1 | 7fcbeaa9683f383a193624d9d1169ac19b2bd7c7 |
| SHA256 | 47a168337993e8075951269af6f5bca1dc38e6d97a9c667f1bc861f05683d618 |
| SHA512 | ad304c10505104f63fc22460cb2ff6be477498902f77473396dcdeee77afb30f3c36d5ef932c90bdaad9ccf0ba00c2d47ce310e18edb2cbcdaebbe97e684adfe |
/data/data/io.dcloud.H5A305F922222/shared_prefs_ext/test_app
| MD5 | e56eb29ec6c970d5485d64a3f4bfca5a |
| SHA1 | 458de6c27fae98343c477bc1e9860341b9035911 |
| SHA256 | e2a97bdb1c89df1e7c6fc4fff7071fd6e1dedadccda55992cf1fafb015fb7e01 |
| SHA512 | fa42677d300f74ea18e8f9bc99a5004f434902566c9d741d5974bd31e0885e8030f18cd439bfa941ee11d52a072a2c08d62fc62f345865a8d66a181464a4923d |
/data/data/io.dcloud.H5A305F922222/files/cnc3ejE6/eje3cnc
| MD5 | 585839d66722cfd02e40cb740cccb633 |
| SHA1 | 374c19200fee201b26d0153487a281a934615884 |
| SHA256 | 86a9bb4985cca6c9636c4fd071bef4b70ba7b3a5eb51af869a1299dc2b1574a8 |
| SHA512 | 09bbe1bf1455861fd4732f2d1945c84bac34090906ac2fab75d144c22ffcf6bc585c8209e94a2b1919c8402df53966081a1af2993e12261ae4c4ac5568667d88 |