Analysis
-
max time kernel
153s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
15-02-2022 13:54
Static task
static1
Behavioral task
behavioral1
Sample
4401cc5459665a04cab4be3e7930ab187e86908b056ad321e19b3b0e8fc255ac.exe
Resource
win7-en-20211208
General
-
Target
4401cc5459665a04cab4be3e7930ab187e86908b056ad321e19b3b0e8fc255ac.exe
-
Size
602KB
-
MD5
21bb6f6da4d85a40fea01d98c2132b50
-
SHA1
eebad8256656b3113eba7321bcce467a61a98322
-
SHA256
4401cc5459665a04cab4be3e7930ab187e86908b056ad321e19b3b0e8fc255ac
-
SHA512
3b1b4c91181d5b286e795afc5ef3549f1473595aa5a69cb51d6d9b31dcda284003d682f1bf3f24d663f4b552ac991996169107c9ac1707901c0fe0ba57f61d9f
Malware Config
Extracted
vidar
47.9
937
https://mas.to/@kirpich
-
profile_id
937
Signatures
-
Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
Processes:
WerFault.exedescription pid process target process PID 3208 created 2720 3208 WerFault.exe 4401cc5459665a04cab4be3e7930ab187e86908b056ad321e19b3b0e8fc255ac.exe -
Vidar Stealer 2 IoCs
Processes:
resource yara_rule behavioral2/memory/2720-131-0x0000000002360000-0x0000000002436000-memory.dmp family_vidar behavioral2/memory/2720-132-0x0000000000400000-0x00000000004D9000-memory.dmp family_vidar -
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 -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3628 2720 WerFault.exe 4401cc5459665a04cab4be3e7930ab187e86908b056ad321e19b3b0e8fc255ac.exe -
Checks processor information in registry 2 TTPs 5 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MusNotifyIcon.exeWerFault.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz MusNotifyIcon.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WerFault.exe Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MusNotifyIcon.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
WerFault.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WerFault.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\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\DownloadMonthlyRateFrCnt = "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\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\MemoryUsageKB = "4096" 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\UploadMonthlyLanBytes = "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\MonthID = "2" 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\BkDownloadRatePct = "45" 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\NormalDownloadCount = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization 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\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\CacheSizeBytes = "0" 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 = "0.383436" 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\UploadCount = "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\DownloadMonthlyRateFrBps = "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\SwarmCount = "1" 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\MonthlyUploadRestriction = "0" 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 (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 = "4196" 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\Config\DownloadMode_BackCompat = "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\DownloadMonthlyGroupBytes = "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\DownlinkBps = "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\DownlinkUsageBps = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.769215" 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\Config\KVFileExpirationTime = "132895833497662765" 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 = "3888" svchost.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
WerFault.exepid process 3628 WerFault.exe 3628 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exeWerFault.exedescription pid process Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 3628 WerFault.exe Token: SeBackupPrivilege 3628 WerFault.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe Token: SeSecurityPrivilege 4032 TiWorker.exe Token: SeBackupPrivilege 4032 TiWorker.exe Token: SeRestorePrivilege 4032 TiWorker.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
WerFault.exedescription pid process target process PID 3208 wrote to memory of 2720 3208 WerFault.exe 4401cc5459665a04cab4be3e7930ab187e86908b056ad321e19b3b0e8fc255ac.exe PID 3208 wrote to memory of 2720 3208 WerFault.exe 4401cc5459665a04cab4be3e7930ab187e86908b056ad321e19b3b0e8fc255ac.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\4401cc5459665a04cab4be3e7930ab187e86908b056ad321e19b3b0e8fc255ac.exe"C:\Users\Admin\AppData\Local\Temp\4401cc5459665a04cab4be3e7930ab187e86908b056ad321e19b3b0e8fc255ac.exe"1⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2720 -s 17362⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2720 -ip 27201⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
-
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