Analysis
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max time kernel
165s -
max time network
178s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 08:09
Static task
static1
Behavioral task
behavioral1
Sample
0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe
Resource
win10v2004-en-20220112
General
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Target
0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe
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Size
216KB
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MD5
ea091972880f973a8020ff451784c27e
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SHA1
b963fabfca997772505f5d0dff1465d63d34b6af
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SHA256
0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4
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SHA512
d4c98836bfd6ae2041c575952694b4e4b56e1d59578047e40f8e753eb31e0a60ed389b004dc51680b8d0517a4689d09368f610ea730ed54644b605e129db2a24
Malware Config
Signatures
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Sakula Payload 4 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 behavioral2/memory/1796-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula behavioral2/memory/2488-133-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula -
suricata: ET MALWARE SUSPICIOUS UA (iexplore)
suricata: ET MALWARE SUSPICIOUS UA (iexplore)
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suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1
suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1
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Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 2488 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.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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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\DownloadMonthlyLinkLocalBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "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 (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\UplinkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4120" 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\CDNConnectionCount = "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\FrDownloadRatePct = "90" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.094304" 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\DownloadMonthlyLanBytes = "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\InternetConnectionCount = "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\DownloadMonthlyGroupBytes = "0" 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\DownlinkUsageBps = "0" 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\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\NormalDownloadPendingCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.154561" 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\PriorityDownloadPendingCount = "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\UploadMonthlyInternetBytes = "0" 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\GroupConnectionCount = "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\NormalDownloadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.424518" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4316" 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\DownloadMonthlyCacheHostBytes = "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\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\SwarmCount = "0" 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\Config\KVFileExpirationTime = "132893036155978103" 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\LANConnectionCount = "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\PriorityDownloadCount = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 1796 0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe Token: SeBackupPrivilege 3196 TiWorker.exe Token: SeRestorePrivilege 3196 TiWorker.exe Token: SeSecurityPrivilege 3196 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.execmd.exedescription pid process target process PID 1796 wrote to memory of 2488 1796 0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe MediaCenter.exe PID 1796 wrote to memory of 2488 1796 0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe MediaCenter.exe PID 1796 wrote to memory of 2488 1796 0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe MediaCenter.exe PID 1796 wrote to memory of 2576 1796 0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe cmd.exe PID 1796 wrote to memory of 2576 1796 0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe cmd.exe PID 1796 wrote to memory of 2576 1796 0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe cmd.exe PID 2576 wrote to memory of 640 2576 cmd.exe PING.EXE PID 2576 wrote to memory of 640 2576 cmd.exe PING.EXE PID 2576 wrote to memory of 640 2576 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe"C:\Users\Admin\AppData\Local\Temp\0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1796 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2488 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0b9b5cb838229943d3de67dff7006ba6d688634882c97620efe0106e31b443d4.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2576 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:640
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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:2652
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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:3196
Network
MITRE ATT&CK Enterprise v6
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Downloads
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MD5
514d839c374d3e9c466da42581c064c5
SHA1575660d0a90bb9cf6a69b9943dd0909c54fc5b7d
SHA256d464e49192b3c5e1df7ded6721851cb60135007fff85626cab6d23b5211cfd9b
SHA512003859fc9d3c59ff0d402c2354ebae9bdd7f7ebe40da14cfb369cd1e9e31f4d563deb472d16c42152102d470a748737be8063a4c7f92d39874509586ae8415e3
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MD5
514d839c374d3e9c466da42581c064c5
SHA1575660d0a90bb9cf6a69b9943dd0909c54fc5b7d
SHA256d464e49192b3c5e1df7ded6721851cb60135007fff85626cab6d23b5211cfd9b
SHA512003859fc9d3c59ff0d402c2354ebae9bdd7f7ebe40da14cfb369cd1e9e31f4d563deb472d16c42152102d470a748737be8063a4c7f92d39874509586ae8415e3