Analysis
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max time kernel
145s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
13-02-2022 11:12
Static task
static1
Behavioral task
behavioral1
Sample
b257911d5debbeced8ec162a06760ce49819001a02b5f508d4305f8ef9701df2.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
b257911d5debbeced8ec162a06760ce49819001a02b5f508d4305f8ef9701df2.exe
Resource
win10v2004-en-20220112
General
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Target
b257911d5debbeced8ec162a06760ce49819001a02b5f508d4305f8ef9701df2.exe
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Size
424KB
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MD5
afeac971ffe5bab0bf3da53291b523fe
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SHA1
f1686e5d05dfb82662cea2907b2e9685d6641755
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SHA256
b257911d5debbeced8ec162a06760ce49819001a02b5f508d4305f8ef9701df2
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SHA512
a065544135927cd13c547faf19e0135e7ad3f84b503f99ae4f82628643aadca6eabfa3ab7025bbc9f1efce854b6114db71d63cac8ff20b789d3385f238d1cd04
Malware Config
Signatures
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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 -
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\UploadMonthlyLanBytes = "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\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\MonthlyUploadRestriction = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "4.686941" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4384" 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\LinkLocalConnectionCount = "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\BkDownloadRatePct = "45" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132894008058704845" 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\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 (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\LANConnectionCount = "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 = "4192" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "16.699228" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "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 (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 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\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\NormalDownloadCount = "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\SwarmCount = "0" 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\SwarmCount = "1" 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\Usage\UploadCount = "0" 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\Settings 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\DownloadMonthlyGroupBytes = "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\InternetConnectionCount = "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\PriorityDownloadPendingCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "4.729525" svchost.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exedescription pid process Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe Token: SeRestorePrivilege 2868 TiWorker.exe Token: SeSecurityPrivilege 2868 TiWorker.exe Token: SeBackupPrivilege 2868 TiWorker.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
b257911d5debbeced8ec162a06760ce49819001a02b5f508d4305f8ef9701df2.exedescription pid process target process PID 2168 wrote to memory of 4020 2168 b257911d5debbeced8ec162a06760ce49819001a02b5f508d4305f8ef9701df2.exe fondue.exe PID 2168 wrote to memory of 4020 2168 b257911d5debbeced8ec162a06760ce49819001a02b5f508d4305f8ef9701df2.exe fondue.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b257911d5debbeced8ec162a06760ce49819001a02b5f508d4305f8ef9701df2.exe"C:\Users\Admin\AppData\Local\Temp\b257911d5debbeced8ec162a06760ce49819001a02b5f508d4305f8ef9701df2.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\fondue.exe"C:\Windows\system32\fondue.exe" /enable-feature:NetFx3 /caller-name:mscoreei.dll2⤵
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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
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
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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