Analysis
- max time kernel
140s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
15/02/2022, 17:16
Static task
static1
Behavioral task
behavioral1
Sample
19533b7955e73932189ec0e80e465a58.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
19533b7955e73932189ec0e80e465a58.exe
Resource
win10v2004-en-20220113
windows10-2004_x64
0 signatures
0 seconds
General
- Target 19533b7955e73932189ec0e80e465a58.exe
- Size 4.6MB
- Sample220215-vs5t5aaefr
- SHA256 f4036a8affaa6f227d3fce3a98b5b9bb752cd434f04587ea4105c58fc96404e2
- MD5 19533b7955e73932189ec0e80e465a58
- SHA1 088347c8a95c35c42f167f01e958fba74ab08f78
- SHA512 f5f8c2224c77397abb8ba6dd8e5bd665315760b4d8421da54efb9b1bc14c66ae27594cd9d53056a394f5e41ab996bec6aa03ce3403fa31e00409c9542147f1ed
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Suspicious use of NtCreateProcessExOtherParentProcess 2 IoCs
description pid Process procid_target PID 4912 created 2024 4912 WerFault.exe 80 PID 4628 created 2024 4628 WerFault.exe 80 - Drops file in Windows directory 8 IoCs
description ioc Process File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe - Program crash 2 IoCs
pid pid_target Process procid_target 5048 2024 WerFault.exe 80 3432 2024 WerFault.exe 80 - Checks processor information in registry 2 TTPs 6 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process 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 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 WerFault.exe - Enumerates system info in registry 2 TTPs 4 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WerFault.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WerFault.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WerFault.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 5048 WerFault.exe 5048 WerFault.exe 3432 WerFault.exe 3432 WerFault.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeRestorePrivilege 5048 WerFault.exe Token: SeBackupPrivilege 5048 WerFault.exe Token: SeShutdownPrivilege 4536 svchost.exe Token: SeCreatePagefilePrivilege 4536 svchost.exe Token: SeShutdownPrivilege 4536 svchost.exe Token: SeCreatePagefilePrivilege 4536 svchost.exe Token: SeShutdownPrivilege 4536 svchost.exe Token: SeCreatePagefilePrivilege 4536 svchost.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe Token: SeSecurityPrivilege 1904 TiWorker.exe Token: SeBackupPrivilege 1904 TiWorker.exe Token: SeRestorePrivilege 1904 TiWorker.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4912 wrote to memory of 2024 4912 WerFault.exe 80 PID 4912 wrote to memory of 2024 4912 WerFault.exe 80 PID 4628 wrote to memory of 2024 4628 WerFault.exe 80 PID 4628 wrote to memory of 2024 4628 WerFault.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\19533b7955e73932189ec0e80e465a58.exe"C:\Users\Admin\AppData\Local\Temp\19533b7955e73932189ec0e80e465a58.exe"1⤵PID:2024
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2024 -s 4602⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5048
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2024 -s 4362⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
PID:3432
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2024 -ip 20241⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:4912
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 2024 -ip 20241⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:4628
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4536
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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:1904