Analysis
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max time kernel
173s -
max time network
185s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 03:32
Static task
static1
Behavioral task
behavioral1
Sample
176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe
Resource
win10v2004-en-20220112
General
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Target
176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe
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Size
80KB
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MD5
9041a568a72c6aad8398030b228696bd
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SHA1
1a1261ef4e98b31e88263b1118e76733d1ad5fa2
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SHA256
176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52
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SHA512
279af9cea13b21b42e7fccbb3622636b9520ba3934d1bf5f5e5d2c4ab33b300c02983111f7166181ff8b2900421aa92796ebe3090c3a46593b4d4902bd611bc3
Malware Config
Signatures
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Sakula Payload 2 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe family_sakula C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe family_sakula -
Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 3044 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe -
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 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz MusNotifyIcon.exe Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MusNotifyIcon.exe -
Modifies data under HKEY_USERS 49 IoCs
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4128" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "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\Usage\DownloadMonthlyInternetBytes = "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\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\UplinkUsageBps = "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\DownloadMonthlyLanBytes = "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\FrDownloadRatePct = "90" 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\DownloadMonthlyRateFrCnt = "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\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo" 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\BkDownloadRatePct = "45" 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\MemoryUsageKB = "4224" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "10.009494" 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\DownloadMonthlyRateFrBps = "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\Usage\SwarmCount = "1" 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\LinkLocalConnectionCount = "0" 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\UploadMonthlyInternetBytes = "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\CacheSizeBytes = "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\UploadCount = "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 = "1.365213" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization 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\DownloadMonthlyCacheHostBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892868620776421" 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\GroupConnectionCount = "0" 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\UploadMonthlyLanBytes = "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\NormalDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.714268" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 3860 176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe Token: SeBackupPrivilege 2380 TiWorker.exe Token: SeRestorePrivilege 2380 TiWorker.exe Token: SeSecurityPrivilege 2380 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.execmd.exedescription pid process target process PID 3860 wrote to memory of 3044 3860 176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe MediaCenter.exe PID 3860 wrote to memory of 3044 3860 176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe MediaCenter.exe PID 3860 wrote to memory of 3044 3860 176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe MediaCenter.exe PID 3860 wrote to memory of 2488 3860 176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe cmd.exe PID 3860 wrote to memory of 2488 3860 176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe cmd.exe PID 3860 wrote to memory of 2488 3860 176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe cmd.exe PID 2488 wrote to memory of 2564 2488 cmd.exe PING.EXE PID 2488 wrote to memory of 2564 2488 cmd.exe PING.EXE PID 2488 wrote to memory of 2564 2488 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe"C:\Users\Admin\AppData\Local\Temp\176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3860 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:3044 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\176917084fb51accecde70308b25bf21dd9c216cafd5518534acecaa9d31aa52.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2488 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:2564
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:4056
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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:3948
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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:2380
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
61d15257d2b6bc5a6be86a10f4a7664b
SHA1f5b5baab60f9f84573df9f6372435c6ef8078f28
SHA2563f4eeb933283691cf0efaf5a130878342d9840c3554c842f8edee11c9e655fe5
SHA5123f4a896c67f48736851a7d78e2f33caec66efdb6b92dcc89feaee9686a6a6ef5ab069c6b11f31806edd104748c09aa9cd0756eea20d0a61ea1c256bcca257bc1
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MD5
61d15257d2b6bc5a6be86a10f4a7664b
SHA1f5b5baab60f9f84573df9f6372435c6ef8078f28
SHA2563f4eeb933283691cf0efaf5a130878342d9840c3554c842f8edee11c9e655fe5
SHA5123f4a896c67f48736851a7d78e2f33caec66efdb6b92dcc89feaee9686a6a6ef5ab069c6b11f31806edd104748c09aa9cd0756eea20d0a61ea1c256bcca257bc1