Analysis
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max time kernel
152s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 03:49
Static task
static1
Behavioral task
behavioral1
Sample
16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe
Resource
win10v2004-en-20220112
General
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Target
16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe
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Size
99KB
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MD5
f4d18e0e1552182baaaaa032e247bf68
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SHA1
61bc650c3db23543518eff5fd3548013f3445035
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SHA256
16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0
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SHA512
8bde9d27fe31068ac763610f80ff038a2f48859b56a96c2b3ae94ee51bcfa8c63279744e386c436ab4ba69b9007b97e73a2576750df6c1d4aa05cae5de067883
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 528 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.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 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\NormalDownloadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.342466" 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\DODownloadMode = "1" 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\MonthID = "2" 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\DownlinkBps = "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\UplinkUsageBps = "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\Usage\DownloadMonthlyGroupBytes = "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\UploadRatePct = "100" 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\LANConnectionCount = "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 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\DownloadMonthlyRateBkCnt = "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\Config\DownloadMode_BackCompat = "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\Config\KVFileExpirationTime = "132892878771982838" 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\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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.086931" 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\DownloadMonthlyLinkLocalBytes = "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\MemoryUsageKB = "4144" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.037147" 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\SwarmCount = "1" 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 = "4228" 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\DownloadMonthlyRateFrCnt = "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\InternetConnectionCount = "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\PriorityDownloadPendingCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "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\GroupConnectionCount = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 208 16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe Token: SeBackupPrivilege 3316 TiWorker.exe Token: SeRestorePrivilege 3316 TiWorker.exe Token: SeSecurityPrivilege 3316 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.execmd.exedescription pid process target process PID 208 wrote to memory of 528 208 16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe MediaCenter.exe PID 208 wrote to memory of 528 208 16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe MediaCenter.exe PID 208 wrote to memory of 528 208 16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe MediaCenter.exe PID 208 wrote to memory of 3628 208 16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe cmd.exe PID 208 wrote to memory of 3628 208 16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe cmd.exe PID 208 wrote to memory of 3628 208 16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe cmd.exe PID 3628 wrote to memory of 3124 3628 cmd.exe PING.EXE PID 3628 wrote to memory of 3124 3628 cmd.exe PING.EXE PID 3628 wrote to memory of 3124 3628 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe"C:\Users\Admin\AppData\Local\Temp\16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:208 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:528 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\16b8c2d1ef1b3419c475712f6eb3c0f5eb65b79d79932e78ed3229f71f3e4ef0.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3628 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3124
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:2876
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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:3316
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
3029c96dd5410433916e4d42b1a9e44d
SHA1aadee133b709eef87d65c8eda509c1383722369c
SHA25600782b6d84c9e65dd1be6ef8d379d3c8c0d727b3d313cba316ec306d5dbbad6b
SHA512c8702a3575fd6d68514409431a6342c2071bb56df80b815de0bc82776a462a427495c41748af1c2ee9030610619fef43d0ae747eb423289116ab5d4ecf1161cf
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MD5
3029c96dd5410433916e4d42b1a9e44d
SHA1aadee133b709eef87d65c8eda509c1383722369c
SHA25600782b6d84c9e65dd1be6ef8d379d3c8c0d727b3d313cba316ec306d5dbbad6b
SHA512c8702a3575fd6d68514409431a6342c2071bb56df80b815de0bc82776a462a427495c41748af1c2ee9030610619fef43d0ae747eb423289116ab5d4ecf1161cf