Analysis
- max time kernel
149s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
14/02/2022, 04:48
Static task
static1
Behavioral task
behavioral1
Sample
44ba5f629c731604580c863afa7e84c87e0ebf431294fa4646c83f8820d2ffa5.dll
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
44ba5f629c731604580c863afa7e84c87e0ebf431294fa4646c83f8820d2ffa5.dll
Resource
win10v2004-en-20220113
windows10-2004_x64
0 signatures
0 seconds
General
- Target 44ba5f629c731604580c863afa7e84c87e0ebf431294fa4646c83f8820d2ffa5.dll
- Size 480KB
- Sample220214-ffc61sgfal
- SHA256 44ba5f629c731604580c863afa7e84c87e0ebf431294fa4646c83f8820d2ffa5
- MD5 46ff7a914be72003199e051cab2b2c0d
- SHA1 6b1785ae3d2415cd12eedbe4d232a2887d5aa7fb
- SHA512 3c7ce281805ded31fbdd74f66f8daefb534e7b87d03014580446416c962651fa292b44c75518841eb478b90656f8242f1f01c3779f164e38f87c11d692029fea
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
description pid Process procid_target PID 1888 created 3364 1888 WerFault.exe 82 - Drops file in Windows directory 8 IoCs
description ioc Process 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 File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe File opened for modification C:\Windows\WindowsUpdate.log svchost.exe - Program crash 1 IoCs
pid pid_target Process procid_target 1992 3364 WerFault.exe 82 - 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WerFault.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WerFault.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1992 WerFault.exe 1992 WerFault.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeRestorePrivilege 1992 WerFault.exe Token: SeBackupPrivilege 1992 WerFault.exe Token: SeShutdownPrivilege 2196 svchost.exe Token: SeCreatePagefilePrivilege 2196 svchost.exe Token: SeShutdownPrivilege 2196 svchost.exe Token: SeCreatePagefilePrivilege 2196 svchost.exe Token: SeShutdownPrivilege 2196 svchost.exe Token: SeCreatePagefilePrivilege 2196 svchost.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe Token: SeSecurityPrivilege 4308 TiWorker.exe Token: SeBackupPrivilege 4308 TiWorker.exe Token: SeRestorePrivilege 4308 TiWorker.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 3832 wrote to memory of 3364 3832 rundll32.exe 82 PID 3832 wrote to memory of 3364 3832 rundll32.exe 82 PID 3832 wrote to memory of 3364 3832 rundll32.exe 82 PID 1888 wrote to memory of 3364 1888 WerFault.exe 82 PID 1888 wrote to memory of 3364 1888 WerFault.exe 82
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\44ba5f629c731604580c863afa7e84c87e0ebf431294fa4646c83f8820d2ffa5.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3832 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\44ba5f629c731604580c863afa7e84c87e0ebf431294fa4646c83f8820d2ffa5.dll,#12⤵PID:3364
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 5603⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1992
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3364 -ip 33641⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:1888
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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:2196
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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:4308