Analysis
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max time kernel
164s -
max time network
174s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
21-02-2022 09:19
Static task
static1
Behavioral task
behavioral1
Sample
Code.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Code.exe
Resource
win10v2004-en-20220112
windows10-2004_x64
0 signatures
0 seconds
General
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Target
Code.exe
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Size
1.1MB
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MD5
149fdf05fd2659a44f84b7bea4ef1a8e
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SHA1
84d65206243408b367ad0fd3234b8d26fc6e4314
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SHA256
2c2b9e423c5ae9ef99565d76a6d7d4b6d5e394f523539b447a633c803e9372a3
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SHA512
2d774b98d39c9571b6550c0de05c16991115199c639b5ca76b04477c420b4ade9c89b1c6c6eb4781012af36edb2dcaf3cc8c4d72c8c480d4e5472b4e8ab182d2
Score
10/10
Malware Config
Extracted
Family
webmonitor
C2
ericpt.wm01.to:443
Attributes
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config_key
YmefzPZ4jwVJTOIYtP2HBKACzugd2Vme
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private_key
Bs4pqL3pA
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url_path
/recv5.php
Signatures
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RevcodeRat, WebMonitorRat
WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.
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WebMonitor Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/1964-133-0x0000000000400000-0x00000000004F6000-memory.dmp family_webmonitor behavioral2/memory/1964-134-0x0000000000400000-0x00000000004F6000-memory.dmp family_webmonitor -
Processes:
resource yara_rule behavioral2/memory/1964-132-0x0000000000400000-0x00000000004F6000-memory.dmp upx behavioral2/memory/1964-133-0x0000000000400000-0x00000000004F6000-memory.dmp upx behavioral2/memory/1964-134-0x0000000000400000-0x00000000004F6000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Code.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Windows\CurrentVersion\Run Code.exe Set value (str) \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ProPlayer = "C:\\Users\\Admin\\AppData\\Roaming\\ProPlayer\\Player.exe.exe" Code.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Code.exedescription pid Process procid_target PID 208 set thread context of 1964 208 Code.exe 59 -
Drops file in Windows directory 3 IoCs
Processes:
TiWorker.exesvchost.exedescription ioc Process File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe File opened for modification C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat svchost.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MusNotifyIcon.exedescription ioc Process Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MusNotifyIcon.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz MusNotifyIcon.exe -
Modifies data under HKEY_USERS 47 IoCs
Processes:
svchost.exedescription ioc Process Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132900854554273939" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.211863" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\GeoVersion_EndpointFullUri = "https://geover.prod.do.dsp.mp.microsoft.com/geoversion" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.378793" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4176" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4292" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0" svchost.exe -
Suspicious use of AdjustPrivilegeToken 33 IoCs
Processes:
TiWorker.exedescription pid Process Token: SeSecurityPrivilege 2472 TiWorker.exe Token: SeRestorePrivilege 2472 TiWorker.exe Token: SeBackupPrivilege 2472 TiWorker.exe Token: SeBackupPrivilege 2472 TiWorker.exe Token: SeRestorePrivilege 2472 TiWorker.exe Token: SeSecurityPrivilege 2472 TiWorker.exe Token: SeBackupPrivilege 2472 TiWorker.exe Token: SeRestorePrivilege 2472 TiWorker.exe Token: SeSecurityPrivilege 2472 TiWorker.exe Token: SeBackupPrivilege 2472 TiWorker.exe Token: SeRestorePrivilege 2472 TiWorker.exe Token: SeSecurityPrivilege 2472 TiWorker.exe Token: SeBackupPrivilege 2472 TiWorker.exe Token: SeRestorePrivilege 2472 TiWorker.exe Token: SeSecurityPrivilege 2472 TiWorker.exe Token: SeBackupPrivilege 2472 TiWorker.exe Token: SeRestorePrivilege 2472 TiWorker.exe Token: SeSecurityPrivilege 2472 TiWorker.exe Token: SeBackupPrivilege 2472 TiWorker.exe Token: SeRestorePrivilege 2472 TiWorker.exe Token: SeSecurityPrivilege 2472 TiWorker.exe Token: SeBackupPrivilege 2472 TiWorker.exe Token: SeRestorePrivilege 2472 TiWorker.exe Token: SeSecurityPrivilege 2472 TiWorker.exe Token: SeBackupPrivilege 2472 TiWorker.exe Token: SeRestorePrivilege 2472 TiWorker.exe Token: SeSecurityPrivilege 2472 TiWorker.exe Token: SeBackupPrivilege 2472 TiWorker.exe Token: SeRestorePrivilege 2472 TiWorker.exe Token: SeSecurityPrivilege 2472 TiWorker.exe Token: SeBackupPrivilege 2472 TiWorker.exe Token: SeRestorePrivilege 2472 TiWorker.exe Token: SeSecurityPrivilege 2472 TiWorker.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Code.exepid Process 208 Code.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Code.exedescription pid Process procid_target PID 208 wrote to memory of 1964 208 Code.exe 59 PID 208 wrote to memory of 1964 208 Code.exe 59 PID 208 wrote to memory of 1964 208 Code.exe 59 PID 208 wrote to memory of 1964 208 Code.exe 59 PID 208 wrote to memory of 1964 208 Code.exe 59 PID 208 wrote to memory of 1964 208 Code.exe 59 PID 208 wrote to memory of 1964 208 Code.exe 59 PID 208 wrote to memory of 1964 208 Code.exe 59
Processes
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C:\Users\Admin\AppData\Local\Temp\Code.exe"C:\Users\Admin\AppData\Local\Temp\Code.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:208 -
C:\Users\Admin\AppData\Local\Temp\Code.EXE"C:\Users\Admin\AppData\Local\Temp\Code.EXE"2⤵PID:1964
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:4016
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:516
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C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2472