Resubmissions
06-07-2022 08:34
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220130-pkf8xabfc3 3Analysis
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max time kernel
183s -
max time network
190s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
07-02-2022 17:48
Static task
static1
Behavioral task
behavioral1
Sample
smphost.dll
Resource
win10-en-20211208
windows10_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
smphost.dll
Resource
win10v2004-en-20220113
windows10-2004_x64
0 signatures
0 seconds
General
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Target
smphost.dll
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Size
144KB
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MD5
fc484855692f2a7d1eae090086a1eb72
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SHA1
2e9103747750b40835f58d9e57c2ab75eeaf25f6
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SHA256
e58b9bbb7bcdf3e901453b7b9c9e514fed1e53565e3280353dccc77cde26a98e
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SHA512
2f6b6e8aa82dc4aa61a540bae1d98682ec79e73ccfeaf9c273b053c2162f35207842f7ab2f1bc06e927d706ec88ecf209d2c57e86323c38fb43e9d694e624311
Score
4/10
Malware Config
Signatures
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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 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1572 regsvr32.exe 1572 regsvr32.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 1616 svchost.exe Token: SeCreatePagefilePrivilege 1616 svchost.exe Token: SeShutdownPrivilege 1616 svchost.exe Token: SeCreatePagefilePrivilege 1616 svchost.exe Token: SeShutdownPrivilege 1616 svchost.exe Token: SeCreatePagefilePrivilege 1616 svchost.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe Token: SeRestorePrivilege 4580 TiWorker.exe Token: SeSecurityPrivilege 4580 TiWorker.exe Token: SeBackupPrivilege 4580 TiWorker.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2284 wrote to memory of 1572 2284 regsvr32.exe 84 PID 2284 wrote to memory of 1572 2284 regsvr32.exe 84 PID 2284 wrote to memory of 1572 2284 regsvr32.exe 84
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\smphost.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2284 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\smphost.dll2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1572
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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:1616
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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:4580