Analysis
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max time kernel
154s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
21-02-2022 23:04
Static task
static1
Behavioral task
behavioral1
Sample
DOCUMENT FILE.exe
Resource
win7-en-20211208
0 signatures
0 seconds
General
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Target
DOCUMENT FILE.exe
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Size
360KB
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MD5
fbe426a8d46b433667c3a30f38c703ab
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SHA1
bed53dc755559ecc8ed6a84f7efbe877937324de
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SHA256
847fa8413751c698b7cb1f258a4365d8e50915e4811fa916308f6b0e18cbc17d
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SHA512
8c22771d773da05bb36d0f4285c25b61157ad42c044d6029f98103b755b5567b2964d225fd18d9d0295bb25a002ba8c9dec9a9567862822ced0ea108f26c8956
Malware Config
Signatures
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Taurus Stealer Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/2020-131-0x00000000048B0000-0x00000000048E9000-memory.dmp family_taurus_stealer behavioral2/memory/3080-132-0x0000000000400000-0x000000000043A000-memory.dmp family_taurus_stealer behavioral2/memory/3080-133-0x0000000000400000-0x000000000043A000-memory.dmp family_taurus_stealer -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
DOCUMENT FILE.exedescription pid process target process PID 2020 set thread context of 3080 2020 DOCUMENT FILE.exe DOCUMENT FILE.exe -
Drops file in Windows directory 3 IoCs
Processes:
svchost.exeTiWorker.exedescription ioc process File opened for modification C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat svchost.exe File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3800 timeout.exe -
Modifies data under HKEY_USERS 54 IoCs
Processes:
svchost.exedescription ioc process 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\DownloadMonthlyRateFrBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "4" 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\DownloadMonthlyRateBkBps = "1157726" 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\PeerInfoCount = "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\LANConnectionCount = "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\UploadMonthlyInternetBytes = "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\InternetConnectionCount = "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 = "4276" 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 (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\DownlinkUsageBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings 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\NormalDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4096" 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\DownloadMonthlyCdnBytes = "90228624" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "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\Usage\PriorityDownloadPendingCount = "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\MonthID = "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\BkDownloadRatePct = "45" 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\Config\KVFileExpirationTime = "132901347342714537" 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 = "18.750960" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config 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\DownloadMonthlyRateFrCnt = "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\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\UplinkBps = "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\DownloadMonthlyLanBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4260" 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\DownloadMonthlyRateBkBps = "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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "17.856249" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000" svchost.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exedescription pid process Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe Token: SeRestorePrivilege 3768 TiWorker.exe Token: SeSecurityPrivilege 3768 TiWorker.exe Token: SeBackupPrivilege 3768 TiWorker.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
DOCUMENT FILE.exeDOCUMENT FILE.execmd.exedescription pid process target process PID 2020 wrote to memory of 3080 2020 DOCUMENT FILE.exe DOCUMENT FILE.exe PID 2020 wrote to memory of 3080 2020 DOCUMENT FILE.exe DOCUMENT FILE.exe PID 2020 wrote to memory of 3080 2020 DOCUMENT FILE.exe DOCUMENT FILE.exe PID 2020 wrote to memory of 3080 2020 DOCUMENT FILE.exe DOCUMENT FILE.exe PID 2020 wrote to memory of 3080 2020 DOCUMENT FILE.exe DOCUMENT FILE.exe PID 2020 wrote to memory of 3080 2020 DOCUMENT FILE.exe DOCUMENT FILE.exe PID 2020 wrote to memory of 3080 2020 DOCUMENT FILE.exe DOCUMENT FILE.exe PID 2020 wrote to memory of 3080 2020 DOCUMENT FILE.exe DOCUMENT FILE.exe PID 2020 wrote to memory of 3080 2020 DOCUMENT FILE.exe DOCUMENT FILE.exe PID 3080 wrote to memory of 3036 3080 DOCUMENT FILE.exe cmd.exe PID 3080 wrote to memory of 3036 3080 DOCUMENT FILE.exe cmd.exe PID 3080 wrote to memory of 3036 3080 DOCUMENT FILE.exe cmd.exe PID 3036 wrote to memory of 3800 3036 cmd.exe timeout.exe PID 3036 wrote to memory of 3800 3036 cmd.exe timeout.exe PID 3036 wrote to memory of 3800 3036 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\DOCUMENT FILE.exe"C:\Users\Admin\AppData\Local\Temp\DOCUMENT FILE.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Users\Admin\AppData\Local\Temp\DOCUMENT FILE.exe"C:\Users\Admin\AppData\Local\Temp\DOCUMENT FILE.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3080 -
C:\Windows\SysWOW64\cmd.exe/c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\DOCUMENT FILE.exe3⤵
- Suspicious use of WriteProcessMemory
PID:3036 -
C:\Windows\SysWOW64\timeout.exetimeout /t 34⤵
- Delays execution with timeout.exe
PID:3800
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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:452
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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:3768