Analysis
- max time kernel
153s - max time network
179s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
16/02/2022, 22:52
Static task
static1
Behavioral task
behavioral1
Sample
d18fcd892cfdce30de3d7ff4f594ffac1e28867905f94.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
d18fcd892cfdce30de3d7ff4f594ffac1e28867905f94.exe
Resource
win10v2004-en-20220113
windows10-2004_x64
0 signatures
0 seconds
General
- Target d18fcd892cfdce30de3d7ff4f594ffac1e28867905f94.exe
- Size 4.7MB
- Sample220216-2td65aeac5
- SHA256 d18fcd892cfdce30de3d7ff4f594ffac1e28867905f94afd586c6fff83b63457
- MD5 77a7d81463b497540b9b10658d25c19a
- SHA1 e8f972ad175df15313f5746af657bc6b4d2f7f8f
- SHA512 be009c01b9348d7575975d0f7470ad03d29e0ebb55ad6bdd317763fed574cead114bd060d618a9df9aa34bbb0e74eabbbcb302255b872c58bf68078866cfb5f1
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Suspicious use of NtCreateProcessExOtherParentProcess 2 IoCs
description pid Process procid_target PID 1352 created 4060 1352 WerFault.exe 81 PID 3816 created 4060 3816 WerFault.exe 81 - Drops file in Windows directory 8 IoCs
description ioc Process 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 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 - Program crash 2 IoCs
pid pid_target Process procid_target 2368 4060 WerFault.exe 81 3036 4060 WerFault.exe 81 - 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 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 Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WerFault.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2368 WerFault.exe 2368 WerFault.exe 3036 WerFault.exe 3036 WerFault.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeRestorePrivilege 2368 WerFault.exe Token: SeBackupPrivilege 2368 WerFault.exe Token: SeShutdownPrivilege 2588 svchost.exe Token: SeCreatePagefilePrivilege 2588 svchost.exe Token: SeShutdownPrivilege 2588 svchost.exe Token: SeCreatePagefilePrivilege 2588 svchost.exe Token: SeShutdownPrivilege 2588 svchost.exe Token: SeCreatePagefilePrivilege 2588 svchost.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe Token: SeSecurityPrivilege 3168 TiWorker.exe Token: SeBackupPrivilege 3168 TiWorker.exe Token: SeRestorePrivilege 3168 TiWorker.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1352 wrote to memory of 4060 1352 WerFault.exe 81 PID 1352 wrote to memory of 4060 1352 WerFault.exe 81 PID 3816 wrote to memory of 4060 3816 WerFault.exe 81 PID 3816 wrote to memory of 4060 3816 WerFault.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\d18fcd892cfdce30de3d7ff4f594ffac1e28867905f94.exe"C:\Users\Admin\AppData\Local\Temp\d18fcd892cfdce30de3d7ff4f594ffac1e28867905f94.exe"1⤵PID:4060
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4060 -s 4642⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2368
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4060 -s 4722⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
PID:3036
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4060 -ip 40601⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:1352
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 4060 -ip 40601⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:3816
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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:2588
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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:3168