Analysis
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max time kernel
161s -
max time network
164s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 03:41
Static task
static1
Behavioral task
behavioral1
Sample
16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe
Resource
win10v2004-en-20220112
General
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Target
16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe
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Size
89KB
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MD5
b5452054b6b5f26621ea99e10e533195
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SHA1
bf782782e633d2a4ca8c4ad928f0961e52bd677b
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SHA256
16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a
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SHA512
773697d09538c5e40f8973806ceaab30aed4e06370c6a6245887bb8da7168abb6d2975eb3227dcbf4771b3a10884da12062227a484ab653c29bbc0e88c152ed9
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/3464-132-0x0000000000400000-0x000000000041B000-memory.dmp family_sakula behavioral2/memory/2160-133-0x0000000000400000-0x000000000041B000-memory.dmp family_sakula -
Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 2160 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe -
Drops file in Windows directory 3 IoCs
Processes:
svchost.exeTiWorker.exedescription ioc process 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 File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.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 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
Processes:
svchost.exedescription ioc process 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\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\UploadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100" 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\DownloadMonthlyGroupBytes = "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\GroupConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "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\DownloadMonthlyLanBytes = "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\InternetConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4060" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.219519" 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 (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\NormalDownloadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.322752" 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\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 (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4200" 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\Config\KVFileExpirationTime = "132892873608741082" 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\UplinkBps = "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\NormalDownloadPendingCount = "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\UploadMonthlyLanBytes = "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\SwarmCount = "1" 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 (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\PriorityDownloadPendingCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.036279" 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
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 3464 16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe Token: SeBackupPrivilege 3536 TiWorker.exe Token: SeRestorePrivilege 3536 TiWorker.exe Token: SeSecurityPrivilege 3536 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.execmd.exedescription pid process target process PID 3464 wrote to memory of 2160 3464 16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe MediaCenter.exe PID 3464 wrote to memory of 2160 3464 16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe MediaCenter.exe PID 3464 wrote to memory of 2160 3464 16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe MediaCenter.exe PID 3464 wrote to memory of 3900 3464 16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe cmd.exe PID 3464 wrote to memory of 3900 3464 16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe cmd.exe PID 3464 wrote to memory of 3900 3464 16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe cmd.exe PID 3900 wrote to memory of 2320 3900 cmd.exe PING.EXE PID 3900 wrote to memory of 2320 3900 cmd.exe PING.EXE PID 3900 wrote to memory of 2320 3900 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe"C:\Users\Admin\AppData\Local\Temp\16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3464 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2160 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\16fbd6897296ce03cdd4230592e6dc8044a564ef26f2a1dd6028b00a40afaf2a.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3900 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:2320
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:2612
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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:3552
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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:3536
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
e8b0043433c3707f6377df6da6a01af1
SHA1d90ae1c7aadf017a8f13d6b0d5af1874205b56ec
SHA2562085a6a52584dd0dd6f6ad13831e80f4c4889f3cb572ac6ec2f5609fca56a4de
SHA512700263b1ef8dc3cb30d2a599251d20de478ee0fbedb13acb78278b56c0b302335fff88be52d8dc169f1fc0ced20c9b2d97f7f2f5dff39236e77e83abdbcc7a6f
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MD5
e8b0043433c3707f6377df6da6a01af1
SHA1d90ae1c7aadf017a8f13d6b0d5af1874205b56ec
SHA2562085a6a52584dd0dd6f6ad13831e80f4c4889f3cb572ac6ec2f5609fca56a4de
SHA512700263b1ef8dc3cb30d2a599251d20de478ee0fbedb13acb78278b56c0b302335fff88be52d8dc169f1fc0ced20c9b2d97f7f2f5dff39236e77e83abdbcc7a6f