Analysis
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max time kernel
176s -
max time network
191s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 11:44
Static task
static1
Behavioral task
behavioral1
Sample
038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe
Resource
win10v2004-en-20220112
General
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Target
038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe
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Size
176KB
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MD5
592581c6d1fcb2f85842c7a0b809a51a
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SHA1
c632382723fa8c166db7fc0a94e1c222e73b56cf
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SHA256
038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b
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SHA512
a2e765375630af229d67013b730b2377f778ef7cf6518fdee78a81b6288dadb7d2eb7a02c2fab5b9f772278493e494fd94e305c190dae314165d2ed09b850ce0
Malware Config
Signatures
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Sakula Payload 3 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/3984-132-0x0000000000400000-0x0000000000420000-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 1780 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.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\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat svchost.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\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\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\MonthID = "2" 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\DownloadMonthlyRateBkBps = "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\Usage\CPUpct = "0.325635" 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\NormalDownloadPendingCount = "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\DownloadMonthlyCdnBytes = "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\DownlinkUsageBps = "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\LANConnectionCount = "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 = "1.953222" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config 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 (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\SwarmCount = "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\BkDownloadRatePct = "45" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "14.285166" 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\DownloadMonthlyLinkLocalBytes = "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\PriorityDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4088" 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\DODownloadMode = "1" 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\UploadRatePct = "100" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4284" 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\FrDownloadRatePct = "90" 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\UplinkBps = "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\NormalDownloadCount = "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 = "132893178952308142" 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\CDNConnectionCount = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exedescription pid process Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeIncBasePriorityPrivilege 3984 038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe Token: SeBackupPrivilege 2064 TiWorker.exe Token: SeRestorePrivilege 2064 TiWorker.exe Token: SeSecurityPrivilege 2064 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.execmd.exedescription pid process target process PID 3984 wrote to memory of 1780 3984 038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe MediaCenter.exe PID 3984 wrote to memory of 1780 3984 038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe MediaCenter.exe PID 3984 wrote to memory of 1780 3984 038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe MediaCenter.exe PID 3984 wrote to memory of 4000 3984 038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe cmd.exe PID 3984 wrote to memory of 4000 3984 038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe cmd.exe PID 3984 wrote to memory of 4000 3984 038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe cmd.exe PID 4000 wrote to memory of 3488 4000 cmd.exe PING.EXE PID 4000 wrote to memory of 3488 4000 cmd.exe PING.EXE PID 4000 wrote to memory of 3488 4000 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe"C:\Users\Admin\AppData\Local\Temp\038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3984 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:1780
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\038857909506645d92f226f91c2f3f844fd65cdfdf4ed14cd0c3ad08dcf9478b.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:4000 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3488
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:2932
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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:3764
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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:2064
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
6f9f0e44430e04df4468654fe575920a
SHA157b87fc8815719224e3d1b8571f3aefacae47850
SHA2563bcef83b0c59e4bcc5e38c79da416a15e191106d42a33593260e4ea3657bcb8e
SHA5121c03284396ff5b35b03eeb9b57449f8af95bc4010ecace410f21a7816cda407b59934a6cb85f78cd54efa258e2ea39670400a555f13565dafcf4f99b01bf087d
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MD5
6f9f0e44430e04df4468654fe575920a
SHA157b87fc8815719224e3d1b8571f3aefacae47850
SHA2563bcef83b0c59e4bcc5e38c79da416a15e191106d42a33593260e4ea3657bcb8e
SHA5121c03284396ff5b35b03eeb9b57449f8af95bc4010ecace410f21a7816cda407b59934a6cb85f78cd54efa258e2ea39670400a555f13565dafcf4f99b01bf087d