Analysis
- max time kernel
155s - max time network
171s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
17/02/2022, 03:19
Static task
static1
Behavioral task
behavioral1
Sample
5ac429ab76d2f51927f6c8a37f51aad8738466bf3add60c18bb7085bb6ecd94b.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
5ac429ab76d2f51927f6c8a37f51aad8738466bf3add60c18bb7085bb6ecd94b.exe
Resource
win10v2004-en-20220113
windows10-2004_x64
0 signatures
0 seconds
General
- Target 5ac429ab76d2f51927f6c8a37f51aad8738466bf3add60c18bb7085bb6ecd94b.exe
- Size 128KB
- Sample220217-dvbkmahfcj
- SHA256 5ac429ab76d2f51927f6c8a37f51aad8738466bf3add60c18bb7085bb6ecd94b
- MD5 9feb45f583905d45260efa1346332989
- SHA1 a1ec991724005d4393d480b971bd4dd33706bfc5
- SHA512 bad7cb6bbad309e6414ae75589f2c68405a9a759628ae9003255c440901b2449340bc7ebcff19fa82bd34aba3066e146d6bd228ef594e4ed7eaef2647f492b3c
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
description pid Process procid_target PID 5020 created 784 5020 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 1 IoCs
pid pid_target Process procid_target 5112 784 WerFault.exe 80 - Checks processor information in registry 2 TTPs 3 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 - 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 5112 WerFault.exe 5112 WerFault.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeRestorePrivilege 5112 WerFault.exe Token: SeBackupPrivilege 5112 WerFault.exe Token: SeShutdownPrivilege 1004 svchost.exe Token: SeCreatePagefilePrivilege 1004 svchost.exe Token: SeShutdownPrivilege 1004 svchost.exe Token: SeCreatePagefilePrivilege 1004 svchost.exe Token: SeShutdownPrivilege 1004 svchost.exe Token: SeCreatePagefilePrivilege 1004 svchost.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe Token: SeSecurityPrivilege 2992 TiWorker.exe Token: SeBackupPrivilege 2992 TiWorker.exe Token: SeRestorePrivilege 2992 TiWorker.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 5020 wrote to memory of 784 5020 WerFault.exe 80 PID 5020 wrote to memory of 784 5020 WerFault.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\5ac429ab76d2f51927f6c8a37f51aad8738466bf3add60c18bb7085bb6ecd94b.exe"C:\Users\Admin\AppData\Local\Temp\5ac429ab76d2f51927f6c8a37f51aad8738466bf3add60c18bb7085bb6ecd94b.exe"1⤵PID:784
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 784 -s 2162⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5112
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 784 -ip 7841⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:5020
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1004
-
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:2992