Analysis
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max time kernel
163s -
max time network
171s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 09:56
Static task
static1
Behavioral task
behavioral1
Sample
088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe
Resource
win10v2004-en-20220112
General
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Target
088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe
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Size
188KB
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MD5
d7be0f23da1dcc36b16b390de4629e1d
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SHA1
d5364272570001e25d3cb5c817150c9ac1a10bca
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SHA256
088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2
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SHA512
63330a8b0a77dd191ff1ff3b5274b9c3521760cafdb01e85622b642d364cd39b52ea5e68738dfa703464e312afe2a9d42bfb89674066491245f69fbc56c6e284
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/3524-132-0x0000000000400000-0x0000000000420000-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 228 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.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 50 IoCs
Processes:
svchost.exedescription ioc process 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\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\SwarmCount = "1" 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\LinkLocalConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100" 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\DownloadMonthlyLinkLocalBytes = "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\UplinkBps = "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\NormalDownloadPendingCount = "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\DownlinkUsageBps = "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\MemoryUsageKB = "4244" 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\MonthlyUploadRestriction = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "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\DownloadMonthlyCdnBytes = "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\PeerInfoCount = "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\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 (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\DownloadMonthlyRateBkBps = "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\MonthID = "2" 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\MemoryUsageKB = "4128" 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\DODownloadMode = "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\Usage\DownloadMonthlyLanBytes = "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\CDNConnectionCount = "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 = "0.033356" 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\DownloadMode_BackCompat = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132893106027066984" 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\PriorityDownloadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.301004" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exedescription pid process Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeIncBasePriorityPrivilege 3524 088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe Token: SeBackupPrivilege 2552 TiWorker.exe Token: SeRestorePrivilege 2552 TiWorker.exe Token: SeSecurityPrivilege 2552 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.execmd.exedescription pid process target process PID 3524 wrote to memory of 228 3524 088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe MediaCenter.exe PID 3524 wrote to memory of 228 3524 088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe MediaCenter.exe PID 3524 wrote to memory of 228 3524 088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe MediaCenter.exe PID 3524 wrote to memory of 612 3524 088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe cmd.exe PID 3524 wrote to memory of 612 3524 088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe cmd.exe PID 3524 wrote to memory of 612 3524 088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe cmd.exe PID 612 wrote to memory of 2512 612 cmd.exe PING.EXE PID 612 wrote to memory of 2512 612 cmd.exe PING.EXE PID 612 wrote to memory of 2512 612 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe"C:\Users\Admin\AppData\Local\Temp\088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3524 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:228 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:612 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:2512
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:464
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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:8
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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:2552
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
cf07c3c3eb4d5464b2ac813bdd42bb82
SHA1e7cfa6ded9c975eacb3f4bff69427fbdfe98cf2d
SHA256d21271f2513ffa17f069bd44735b5e2913d35e84ffa897ef33b90ab2215ea740
SHA51220ab64eeadf0aedf815fb8dd751c2004e0386094f6c934167910762f848ad963f38879fe8670310264095b600550f40989d2cf50b105a23b49b2f3b92ce14926
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
cf07c3c3eb4d5464b2ac813bdd42bb82
SHA1e7cfa6ded9c975eacb3f4bff69427fbdfe98cf2d
SHA256d21271f2513ffa17f069bd44735b5e2913d35e84ffa897ef33b90ab2215ea740
SHA51220ab64eeadf0aedf815fb8dd751c2004e0386094f6c934167910762f848ad963f38879fe8670310264095b600550f40989d2cf50b105a23b49b2f3b92ce14926
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memory/3524-132-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB