Analysis
-
max time kernel
169s -
max time network
179s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
15-02-2022 13:30
Static task
static1
Behavioral task
behavioral1
Sample
4ed7609cbb86ea0b7607b8a002e7f85b316903c3b6801240c9576aae8b3052ff.exe
Resource
win7-en-20211208
General
-
Target
4ed7609cbb86ea0b7607b8a002e7f85b316903c3b6801240c9576aae8b3052ff.exe
-
Size
618KB
-
MD5
353a21b3835ac7c17a82af79302d23cc
-
SHA1
03e96fc686cc15a0bb26186ecb4fe63e6b841c4b
-
SHA256
4ed7609cbb86ea0b7607b8a002e7f85b316903c3b6801240c9576aae8b3052ff
-
SHA512
fccacf9a70f9151f081caa6c2d32c2cee3fb3e3c95ce10ee5c632f3007f54c5513b024fc10c9abc9eb9c7703e197360d569040ec3e47d182a123079cba0743dc
Malware Config
Extracted
| Family |
vidar |
| Version |
41.7 |
| Botnet |
937 |
| C2 |
https://mas.to/@lenka51 |
| Attributes |
profile_id 937 |
Signatures
-
Suspicious use of NtCreateProcessExOtherParentProcess ⋅ 1 IoCs
Processes:
WerFault.exedescription pid process target process PID 1576 created 3408 1576 WerFault.exe 4ed7609cbb86ea0b7607b8a002e7f85b316903c3b6801240c9576aae8b3052ff.exe -
Vidar Stealer ⋅ 2 IoCs
Processes:
resource yara_rule behavioral2/memory/3408-131-0x00000000022A0000-0x0000000002376000-memory.dmp family_vidar behavioral2/memory/3408-132-0x0000000000400000-0x00000000004D9000-memory.dmp family_vidar -
Drops file in Windows directory ⋅ 4 IoCs
Processes:
svchost.exeTiWorker.exeWerFault.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 File created C:\Windows\AppCompat\Programs\Amcache.hve.tmp WerFault.exe -
Program crash ⋅ 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3544 3408 WerFault.exe 4ed7609cbb86ea0b7607b8a002e7f85b316903c3b6801240c9576aae8b3052ff.exe -
Checks processor information in registry ⋅ 2 TTPs 5 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
WerFault.exeMusNotifyIcon.exedescription ioc process 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 Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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 ⋅ 49 IoCs
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1" 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\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\DownloadMonthlyLanBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "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\UplinkBps = "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\NormalDownloadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.189752" 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\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\PeerInfoCount = "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 (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132895819226375028" 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\MonthlyUploadRestriction = "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 = "4408" 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\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\CacheSizeBytes = "0" 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\Usage svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "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\DownlinkUsageBps = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "14.279350" 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\BkDownloadRatePct = "45" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4184" 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\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\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\DownloadMonthlyRateBkCnt = "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\NormalDownloadPendingCount = "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\DownlinkBps = "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\PriorityDownloadPendingCount = "0" svchost.exe -
Suspicious behavior: EnumeratesProcesses ⋅ 2 IoCs
Processes:
WerFault.exepid process 3544 WerFault.exe 3544 WerFault.exe -
Suspicious use of AdjustPrivilegeToken ⋅ 64 IoCs
Processes:
TiWorker.exedescription pid process Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe Token: SeRestorePrivilege 3516 TiWorker.exe Token: SeSecurityPrivilege 3516 TiWorker.exe Token: SeBackupPrivilege 3516 TiWorker.exe -
Suspicious use of WriteProcessMemory ⋅ 2 IoCs
Processes:
WerFault.exedescription pid process target process PID 1576 wrote to memory of 3408 1576 WerFault.exe 4ed7609cbb86ea0b7607b8a002e7f85b316903c3b6801240c9576aae8b3052ff.exe PID 1576 wrote to memory of 3408 1576 WerFault.exe 4ed7609cbb86ea0b7607b8a002e7f85b316903c3b6801240c9576aae8b3052ff.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\4ed7609cbb86ea0b7607b8a002e7f85b316903c3b6801240c9576aae8b3052ff.exePID:3408"C:\Users\Admin\AppData\Local\Temp\4ed7609cbb86ea0b7607b8a002e7f85b316903c3b6801240c9576aae8b3052ff.exe"
-
C:\Windows\SysWOW64\WerFault.exePID:3544C:\Windows\SysWOW64\WerFault.exe -u -p 3408 -s 1040Drops file in Windows directoryProgram crashChecks processor information in registryEnumerates system info in registrySuspicious behavior: EnumeratesProcesses
-
C:\Windows\system32\MusNotifyIcon.exePID:364%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13Checks processor information in registry
-
C:\Windows\System32\svchost.exePID:3244C:\Windows\System32\svchost.exe -k NetworkService -pDrops file in Windows directoryModifies data under HKEY_USERS
-
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exePID:3516C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -EmbeddingDrops file in Windows directorySuspicious use of AdjustPrivilegeToken
-
C:\Windows\SysWOW64\WerFault.exePID:1576C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3408 -ip 3408Suspicious use of NtCreateProcessExOtherParentProcessSuspicious use of WriteProcessMemory
Network
MITRE ATT&CK Matrix
Collection
Command and Control
Credential Access
Defense Evasion
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Replay Monitor
00:00
00:00
Loading data