Analysis
- max time kernel
119s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
17/02/2022, 00:01
Static task
static1
Behavioral task
behavioral1
Sample
85f2132d070df7e82193663b26d0bc0bc0a1b3d0d7f799beadf22ca845f771df.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
85f2132d070df7e82193663b26d0bc0bc0a1b3d0d7f799beadf22ca845f771df.exe
Resource
win10v2004-en-20220113
windows10-2004_x64
0 signatures
0 seconds
General
- Target 85f2132d070df7e82193663b26d0bc0bc0a1b3d0d7f799beadf22ca845f771df.exe
- Size 204KB
- Sample220217-abbvhaefe2
- SHA256 85f2132d070df7e82193663b26d0bc0bc0a1b3d0d7f799beadf22ca845f771df
- MD5 5f48f6b8ce75117ee330197617143120
- SHA1 1eb89c84a8dab8f8d5a72878e3dc6a78cdd727ee
- SHA512 e945e390973f184c871b945868b1a64ee82cd043e2ee942319a488ad2813a96dc1e9a50b50dc57d5dbdac2d17ff76617626418946238818601b8b43398f1d7e8
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
description pid Process procid_target PID 4476 created 4032 4476 WerFault.exe 81 - Drops file in Windows directory 8 IoCs
description ioc Process 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 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 - Program crash 1 IoCs
pid pid_target Process procid_target 4536 4032 WerFault.exe 81 - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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 - Enumerates system info in registry 2 TTPs 2 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 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4536 WerFault.exe 4536 WerFault.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeRestorePrivilege 4536 WerFault.exe Token: SeBackupPrivilege 4536 WerFault.exe Token: SeShutdownPrivilege 2620 svchost.exe Token: SeCreatePagefilePrivilege 2620 svchost.exe Token: SeShutdownPrivilege 2620 svchost.exe Token: SeCreatePagefilePrivilege 2620 svchost.exe Token: SeShutdownPrivilege 2620 svchost.exe Token: SeCreatePagefilePrivilege 2620 svchost.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe Token: SeSecurityPrivilege 3656 TiWorker.exe Token: SeBackupPrivilege 3656 TiWorker.exe Token: SeRestorePrivilege 3656 TiWorker.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4476 wrote to memory of 4032 4476 WerFault.exe 81 PID 4476 wrote to memory of 4032 4476 WerFault.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\85f2132d070df7e82193663b26d0bc0bc0a1b3d0d7f799beadf22ca845f771df.exe"C:\Users\Admin\AppData\Local\Temp\85f2132d070df7e82193663b26d0bc0bc0a1b3d0d7f799beadf22ca845f771df.exe"1⤵PID:4032
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4032 -s 2042⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4536
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4032 -ip 40321⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:4476
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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:2620
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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:3656