Analysis
- max time kernel
169s - max time network
185s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
12/02/2022, 04:12
Static task
static1
Behavioral task
behavioral1
Sample
15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe
Resource
win10v2004-en-20220112
windows10-2004_x64
0 signatures
0 seconds
General
- Target 15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe
- Size 99KB
- Sample220212-esls9afhb3
- SHA256 15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89
- MD5 e85fa7210bf5bb9576fdd9892f56482f
- SHA1 8495e1c07c44e50d828ceadb78e2d6fb312323d1
- SHA512 8ecea8e5a1f3969bf2a933699042fc16e7f5d6371bf49e83381d34e4cb9d78a611408d863716bb65c7b1c7b957f8748c334f39a7ddf88161046bbc32d62a6b2d
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Sakula Payload 2 IoCs
resource yara_rule behavioral2/files/0x0006000000022100-130.dat family_sakula behavioral2/files/0x0006000000022100-131.dat family_sakula - Executes dropped EXE 1 IoCs
pid Process 3188 MediaCenter.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe - Drops file in Windows directory 3 IoCs
description ioc Process 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 File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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 49 IoCs
description ioc Process 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\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\DownloadMonthlyRateBkBps = "0" 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\UplinkUsageBps = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "20.010732" 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\DownloadMonthlyLanBytes = "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\DownlinkUsageBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "4.999498" 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\DownloadMonthlyInternetBytes = "0" 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\Config\KVFileExpirationTime = "132892892399170168" 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\UploadMonthlyLanBytes = "0" 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\GroupConnectionCount = "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\BkDownloadRatePct = "45" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0" 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\MonthID = "2" 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\MemoryUsageKB = "4316" 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\CDNConnectionCount = "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\DownlinkBps = "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\Config\DownloadMode_BackCompat = "1" 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\DownloadMonthlyGroupBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4096" 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\UploadMonthlyInternetBytes = "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\InternetConnectionCount = "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 = "1.265821" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0" svchost.exe - Runs ping.exe 1 TTPs 1 IoCs
pid Process 3980 PING.EXE - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 3916 15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe Token: SeBackupPrivilege 2940 TiWorker.exe Token: SeRestorePrivilege 2940 TiWorker.exe Token: SeSecurityPrivilege 2940 TiWorker.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3916 wrote to memory of 3188 3916 15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe 65 PID 3916 wrote to memory of 3188 3916 15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe 65 PID 3916 wrote to memory of 3188 3916 15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe 65 PID 3916 wrote to memory of 2284 3916 15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe 72 PID 3916 wrote to memory of 2284 3916 15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe 72 PID 3916 wrote to memory of 2284 3916 15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe 72 PID 2284 wrote to memory of 3980 2284 cmd.exe 74 PID 2284 wrote to memory of 3980 2284 cmd.exe 74 PID 2284 wrote to memory of 3980 2284 cmd.exe 74
Processes
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C:\Users\Admin\AppData\Local\Temp\15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe"C:\Users\Admin\AppData\Local\Temp\15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3916 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:3188
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\15cfd372587277b69e599ae62f67fc115782751ae5b31a453679bd9b8b11fb89.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2284 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3980
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3248
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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:3164
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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:2940