Analysis
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max time kernel
169s -
max time network
183s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 11:40
Static task
static1
Behavioral task
behavioral1
Sample
03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe
Resource
win10v2004-en-20220112
General
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Target
03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe
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Size
92KB
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MD5
f65a9dbb91cde08281eb70f21e3837e5
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SHA1
3acc6d173b41ee7675a629074c0a2b68fff8d698
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SHA256
03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b
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SHA512
2471cac4d951de90f892d32279029cb6a16da16cbda3b9e8b0a645cd94c9682b07f9fcf1ac5c4b51f52bfd62105618868d7f6157c6fc631f5465d591e8dfdb41
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 3984 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.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 (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\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 (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\SwarmCount = "0" 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\DownloadMonthlyLinkLocalBytes = "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\FrDownloadRatePct = "90" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "3.278683" 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 = "1" 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 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\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 (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\DownloadMonthlyLanBytes = "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\CDNConnectionCount = "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 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\DownloadMonthlyCacheHostBytes = "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 = "132893175882028052" 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\GroupConnectionCount = "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 = "4372" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "4.216812" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4160" 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\UploadMonthlyInternetBytes = "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\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\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 (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\NormalDownloadPendingCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exedescription pid process Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeIncBasePriorityPrivilege 208 03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe Token: SeBackupPrivilege 3572 TiWorker.exe Token: SeRestorePrivilege 3572 TiWorker.exe Token: SeSecurityPrivilege 3572 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.execmd.exedescription pid process target process PID 208 wrote to memory of 3984 208 03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe MediaCenter.exe PID 208 wrote to memory of 3984 208 03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe MediaCenter.exe PID 208 wrote to memory of 3984 208 03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe MediaCenter.exe PID 208 wrote to memory of 3732 208 03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe cmd.exe PID 208 wrote to memory of 3732 208 03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe cmd.exe PID 208 wrote to memory of 3732 208 03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe cmd.exe PID 3732 wrote to memory of 2488 3732 cmd.exe PING.EXE PID 3732 wrote to memory of 2488 3732 cmd.exe PING.EXE PID 3732 wrote to memory of 2488 3732 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe"C:\Users\Admin\AppData\Local\Temp\03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.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:3984 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\03b89ef02761880fb7b240b8d358c86ad1fab1fc6ebd6c0959509c7a5efdbd0b.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3732 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:2488
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:624
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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:2564
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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:3572
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
652d6e387ca7f366412d75174a0f56e8
SHA1fb18f80e55761e8ac78d1f80672b2bbf007d0042
SHA256c0683da2bb03921544a389191dfc962524799d4c77b68b7e5589ab8dadb499e6
SHA5125ac4d194e2bd9c524fbaec0943d8f2fbbb9f45c6eecc3b1d4a80934d0d79ba6d36668acb7bdea28fbe09fbb42946d6dfbb65d0a8ddf11cd0e2d066ef9dd28e61
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
652d6e387ca7f366412d75174a0f56e8
SHA1fb18f80e55761e8ac78d1f80672b2bbf007d0042
SHA256c0683da2bb03921544a389191dfc962524799d4c77b68b7e5589ab8dadb499e6
SHA5125ac4d194e2bd9c524fbaec0943d8f2fbbb9f45c6eecc3b1d4a80934d0d79ba6d36668acb7bdea28fbe09fbb42946d6dfbb65d0a8ddf11cd0e2d066ef9dd28e61