Analysis
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max time kernel
146s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 09:27
Static task
static1
Behavioral task
behavioral1
Sample
0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe
Resource
win10v2004-en-20220112
General
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Target
0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe
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Size
216KB
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MD5
a18c204062821f34000e17b09b8f2810
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SHA1
bdce1a00d1fefc55591a3783e5c087d53b248577
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SHA256
0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f
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SHA512
4a70ebb4ad1144c14596369536f6f16937b43f84277208572f5e07aadf5c444606b9ef578700a17a7bfd892ebb24f5fa0ecc6be929804f5e9b025b134cd8e8d1
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/1264-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula behavioral2/memory/1840-133-0x0000000000400000-0x0000000000420000-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 1840 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.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\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\UploadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "6.895937" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4260" 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\DownloadMonthlyGroupBytes = "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\Config\KVFileExpirationTime = "132893081197554038" 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\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\NormalDownloadCount = "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\InternetConnectionCount = "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\MonthID = "2" 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\DownloadMonthlyRateFrCnt = "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\BkDownloadRatePct = "45" 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 = "2.941890" 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\DownloadMonthlyRateFrBps = "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\DownlinkUsageBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4056" 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 (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\PeerInfoCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "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\Config\DownloadMode_BackCompat = "1" 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\DownloadMonthlyCdnBytes = "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\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\FrDownloadRatePct = "90" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1" 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\UploadRatePct = "100" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "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\Usage\UploadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 1264 0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe Token: SeBackupPrivilege 216 TiWorker.exe Token: SeRestorePrivilege 216 TiWorker.exe Token: SeSecurityPrivilege 216 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.execmd.exedescription pid process target process PID 1264 wrote to memory of 1840 1264 0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe MediaCenter.exe PID 1264 wrote to memory of 1840 1264 0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe MediaCenter.exe PID 1264 wrote to memory of 1840 1264 0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe MediaCenter.exe PID 1264 wrote to memory of 4092 1264 0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe cmd.exe PID 1264 wrote to memory of 4092 1264 0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe cmd.exe PID 1264 wrote to memory of 4092 1264 0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe cmd.exe PID 4092 wrote to memory of 3356 4092 cmd.exe PING.EXE PID 4092 wrote to memory of 3356 4092 cmd.exe PING.EXE PID 4092 wrote to memory of 3356 4092 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe"C:\Users\Admin\AppData\Local\Temp\0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1264 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:1840 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0a0f8cd645d0466a10955740a7bb0d1b3b591e632b6a9422e32884e1bf0dea1f.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:4092 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3356
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3744
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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:3416
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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:216
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
77184ba01d64f86773bec53f29f107e2
SHA119edf171a4398b93e17a95db426fdab1256e7e09
SHA25660e574c2451d20bf8bca094bd6a17a12dd65639e70a02468a6bf0ea7d669b216
SHA512ba5941bf2f40831447d519df8fc1ffeae6eb926330c4656e5e30085d02a810a459e1d62c5a8023260ca059a6bfdecb1bf565786bfad849f02fca3be34bafd646
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
77184ba01d64f86773bec53f29f107e2
SHA119edf171a4398b93e17a95db426fdab1256e7e09
SHA25660e574c2451d20bf8bca094bd6a17a12dd65639e70a02468a6bf0ea7d669b216
SHA512ba5941bf2f40831447d519df8fc1ffeae6eb926330c4656e5e30085d02a810a459e1d62c5a8023260ca059a6bfdecb1bf565786bfad849f02fca3be34bafd646
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memory/1264-132-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/1840-133-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB