Analysis
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max time kernel
147s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 03:04
Static task
static1
Behavioral task
behavioral1
Sample
18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe
Resource
win10v2004-en-20220112
General
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Target
18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe
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Size
89KB
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MD5
1b876e836dcfc62e153162d081c8c2ca
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SHA1
7aab00368ee009729625c03caa234ce88a2d9627
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SHA256
18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090
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SHA512
3a2d24689fe20227c1c71c63e810de29995dcdadb7949b8ae463cc10edb9e21db2286538ff13a3babfd3c6ddc63d5fe6d900b970566c962ec47d7a1dd827e3dd
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 -
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 2640 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.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 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 51 IoCs
Processes:
svchost.exedescription ioc process 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\PriorityDownloadCount = "0" 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\UploadMonthlyInternetBytes = "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\LANConnectionCount = "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\DownlinkBps = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "6.265695" 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 = "0.046159" 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\BkDownloadRatePct = "45" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "7.449401" 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\DownloadMonthlyLinkLocalBytes = "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\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 = "3920" 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\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\Config\DODownloadMode = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "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\CacheSizeBytes = "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\MemoryUsageKB = "4332" 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\Config\KVFileExpirationTime = "132892850777608276" 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\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\DownloadMonthlyCdnBytes = "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\NormalDownloadPendingCount = "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\UploadCount = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings 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\DownloadMonthlyGroupBytes = "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\MonthID = "2" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "6.233173" 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\DownloadMonthlyInternetBytes = "0" 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\DownloadMonthlyRateFrCnt = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exedescription pid process Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeIncBasePriorityPrivilege 3316 18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe Token: SeBackupPrivilege 3640 TiWorker.exe Token: SeRestorePrivilege 3640 TiWorker.exe Token: SeSecurityPrivilege 3640 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.execmd.exedescription pid process target process PID 3316 wrote to memory of 2640 3316 18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe MediaCenter.exe PID 3316 wrote to memory of 2640 3316 18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe MediaCenter.exe PID 3316 wrote to memory of 2640 3316 18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe MediaCenter.exe PID 3316 wrote to memory of 3632 3316 18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe cmd.exe PID 3316 wrote to memory of 3632 3316 18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe cmd.exe PID 3316 wrote to memory of 3632 3316 18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe cmd.exe PID 3632 wrote to memory of 1020 3632 cmd.exe PING.EXE PID 3632 wrote to memory of 1020 3632 cmd.exe PING.EXE PID 3632 wrote to memory of 1020 3632 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe"C:\Users\Admin\AppData\Local\Temp\18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3316 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2640 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18aefbd7bef8c442d31093c063004cf1fb26eba01fe00d5ac964a703cd516090.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3632 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:1020
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:864
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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:1268
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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:3640
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
d8e589fa4d75032d3558628aa9345d7e
SHA167526bfb7c786cdf7492b4f1c4fbc779f20f2241
SHA256b9982890e4e51ad92897217e61b02af298105519df2cfba0c55edb30a5a3f6cb
SHA512cb3dd8165eda2f9838c34020c6e32ba6d77189fdcf872355359af07a1ecb710e0332bcb9756fb1287d27e100cf1b834c30b5519ea02f67027585a9826a41c4b8
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MD5
d8e589fa4d75032d3558628aa9345d7e
SHA167526bfb7c786cdf7492b4f1c4fbc779f20f2241
SHA256b9982890e4e51ad92897217e61b02af298105519df2cfba0c55edb30a5a3f6cb
SHA512cb3dd8165eda2f9838c34020c6e32ba6d77189fdcf872355359af07a1ecb710e0332bcb9756fb1287d27e100cf1b834c30b5519ea02f67027585a9826a41c4b8