Analysis
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max time kernel
153s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 09:32
Static task
static1
Behavioral task
behavioral1
Sample
09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe
Resource
win10v2004-en-20220112
General
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Target
09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe
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Size
192KB
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MD5
3da4fa0fb356222d7f5fdb05414b44e5
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SHA1
423b8d77336b4d152dee6b2da0f999cfbf38b84f
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SHA256
09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca
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SHA512
d7ea50d3910b1985bd829517760dc40663fc3a4b1b2b9c5abe5468d8f94e5d81b307a087b1da53d7e246bc69deabfcae77a9464fd4df860c78eb5de49089650f
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 -
Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 1884 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.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 52 IoCs
Processes:
svchost.exedescription ioc process 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\DownloadMonthlyRateFrCnt = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.201126" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0" 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\Usage 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\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\DownloadMonthlyRateBkBps = "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\PriorityDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4120" 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\DownlinkBps = "0" 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\Usage\PriorityDownloadPendingCount = "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 = "4340" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "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\DODownloadMode = "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\DownloadMonthlyCacheHostBytes = "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\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\LANConnectionCount = "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\BkDownloadRatePct = "45" 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\KVFileExpirationTime = "132893084632234072" 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\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\MemoryUsageKB = "3964" 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 (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\UploadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4344" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.015581" 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\MonthID = "2" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "8.696608" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "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.exedescription pid process Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe Token: SeRestorePrivilege 3660 TiWorker.exe Token: SeSecurityPrivilege 3660 TiWorker.exe Token: SeBackupPrivilege 3660 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.execmd.exedescription pid process target process PID 4056 wrote to memory of 1884 4056 09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe MediaCenter.exe PID 4056 wrote to memory of 1884 4056 09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe MediaCenter.exe PID 4056 wrote to memory of 1884 4056 09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe MediaCenter.exe PID 4056 wrote to memory of 1964 4056 09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe cmd.exe PID 4056 wrote to memory of 1964 4056 09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe cmd.exe PID 4056 wrote to memory of 1964 4056 09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe cmd.exe PID 1964 wrote to memory of 2040 1964 cmd.exe PING.EXE PID 1964 wrote to memory of 2040 1964 cmd.exe PING.EXE PID 1964 wrote to memory of 2040 1964 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe"C:\Users\Admin\AppData\Local\Temp\09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4056 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:1884 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\09c3a4fa4b1a3ae3687f3ea6d23e9e15032569fb87288f784c7cfabcc60bd1ca.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1964 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:2040
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3872
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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:2884
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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:3660
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k wusvcs -p1⤵PID:3596
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
969abe0d81d5af5a8930146c5fd5a209
SHA1826d289ab309d9ca71f2d1a0c15244355298e38d
SHA256fd37b12518ce47d531fd9962f1604baa99784dd013f6d2a9a51f4ab4e8bf16e8
SHA51209c43b8aea4fcb955c8326fa69435557af84c5d54f4f483f5e82317d890a45bd4963ade46043d6c6e9daa998716e4313616e816bb7fb07ff6100c6d3e8d8ae93
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
969abe0d81d5af5a8930146c5fd5a209
SHA1826d289ab309d9ca71f2d1a0c15244355298e38d
SHA256fd37b12518ce47d531fd9962f1604baa99784dd013f6d2a9a51f4ab4e8bf16e8
SHA51209c43b8aea4fcb955c8326fa69435557af84c5d54f4f483f5e82317d890a45bd4963ade46043d6c6e9daa998716e4313616e816bb7fb07ff6100c6d3e8d8ae93