Analysis
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max time kernel
169s -
max time network
176s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 04:05
Static task
static1
Behavioral task
behavioral1
Sample
16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe
Resource
win10v2004-en-20220112
General
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Target
16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe
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Size
176KB
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MD5
be847c4f0e08bc0234d811067d9b4acf
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SHA1
9cee84ae3e961dd7e7b8fe0b2a02d0154b447b77
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SHA256
16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7
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SHA512
782c653b15cbfa665fc684493acb8b30fbcb0a254acc415d7e3b5a7d628b04c52d392617ddfda82ff435373e5c6ad973b200af7d61b567dcfbfa736c2b0acfa3
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/3264-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula behavioral2/memory/2436-133-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula -
Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 2436 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.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\Usage\UploadMonthlyInternetBytes = "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\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\InternetConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "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\DownloadMode_BackCompat = "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\GroupConnectionCount = "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\DownloadMonthlyRateBkBps = "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\PeerInfoCount = "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\UploadCount = "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 = "0.000000" 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\DownloadMonthlyRateBkCnt = "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\UploadRatePct = "100" 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 (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\UplinkUsageBps = "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\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\MonthlyUploadRestriction = "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\Config\KVFileExpirationTime = "132892888411156840" 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\NormalDownloadPendingCount = "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\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\DownloadMonthlyLinkLocalBytes = "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\DownlinkUsageBps = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.948075" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4296" 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\DownloadMonthlyLanBytes = "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\MemoryUsageKB = "4068" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "5.263594" 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\DownloadMonthlyInternetBytes = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 3264 16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe Token: SeBackupPrivilege 2304 TiWorker.exe Token: SeRestorePrivilege 2304 TiWorker.exe Token: SeSecurityPrivilege 2304 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.execmd.exedescription pid process target process PID 3264 wrote to memory of 2436 3264 16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe MediaCenter.exe PID 3264 wrote to memory of 2436 3264 16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe MediaCenter.exe PID 3264 wrote to memory of 2436 3264 16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe MediaCenter.exe PID 3264 wrote to memory of 2188 3264 16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe cmd.exe PID 3264 wrote to memory of 2188 3264 16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe cmd.exe PID 3264 wrote to memory of 2188 3264 16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe cmd.exe PID 2188 wrote to memory of 1832 2188 cmd.exe PING.EXE PID 2188 wrote to memory of 1832 2188 cmd.exe PING.EXE PID 2188 wrote to memory of 1832 2188 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe"C:\Users\Admin\AppData\Local\Temp\16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3264 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2436 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\16141cd93e91c9af06e72451bb376d3ae5fb63c0639bbc9fcbdbed930a6837e7.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2188 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:1832
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3408
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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:3512
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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:2304
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
c4ad15192c2fa93e60e55afb70047c86
SHA15a80f7b97ef1e72763b9d0311e60a9cb07836333
SHA256525f076545df084c7564621aa1759a541b9da08d9ac895f833bdea12f926d474
SHA5121ed0b3b6863334e22b97c36c1cd9a4640b05813575614497d326a2ab390183561db2ad41567b13023cf96fc238ec4358fd6096e21f2bfe60318d8c9e3d762d64
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MD5
c4ad15192c2fa93e60e55afb70047c86
SHA15a80f7b97ef1e72763b9d0311e60a9cb07836333
SHA256525f076545df084c7564621aa1759a541b9da08d9ac895f833bdea12f926d474
SHA5121ed0b3b6863334e22b97c36c1cd9a4640b05813575614497d326a2ab390183561db2ad41567b13023cf96fc238ec4358fd6096e21f2bfe60318d8c9e3d762d64