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Analysis
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max time kernel
176s -
max time network
167s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
11/02/2022, 07:11 UTC
Static task
static1
Behavioral task
behavioral1
Sample
PO_3421.msi
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
PO_3421.msi
Resource
win10v2004-en-20220113
windows10-2004_x64
0 signatures
0 seconds
General
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Target
PO_3421.msi
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Size
2.3MB
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MD5
30a04930a6888a2df882478fef4a7ade
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SHA1
c91b1b550c3a74840f3066e7a4b0fe08c37b7d2a
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SHA256
1f7830f0117f694b87ae81caed022c82174f9a8d158a0b8e127154e17d1600cc
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SHA512
b101b58533e61dd8fe8d27af36cb3c6300927286a51994bb7adbafac63ff20af61196660bc79f3f6ffef1e9975be8d06d9ed0c88891389abedcf823480565b49
Score
6/10
Malware Config
Signatures
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Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\F: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\Z: msiexec.exe -
Drops file in Windows directory 7 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\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe -
Checks SCSI registry key(s) 3 TTPs 5 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr vssvc.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr\PartitionTableCache = 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 vssvc.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters\Partmgr\SnapshotDataCache = 534e41505041525401000000700000008ec7416a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 vssvc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters vssvc.exe -
Suspicious use of AdjustPrivilegeToken 58 IoCs
description pid Process Token: SeShutdownPrivilege 1704 msiexec.exe Token: SeIncreaseQuotaPrivilege 1704 msiexec.exe Token: SeSecurityPrivilege 2160 msiexec.exe Token: SeCreateTokenPrivilege 1704 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 1704 msiexec.exe Token: SeLockMemoryPrivilege 1704 msiexec.exe Token: SeIncreaseQuotaPrivilege 1704 msiexec.exe Token: SeMachineAccountPrivilege 1704 msiexec.exe Token: SeTcbPrivilege 1704 msiexec.exe Token: SeSecurityPrivilege 1704 msiexec.exe Token: SeTakeOwnershipPrivilege 1704 msiexec.exe Token: SeLoadDriverPrivilege 1704 msiexec.exe Token: SeSystemProfilePrivilege 1704 msiexec.exe Token: SeSystemtimePrivilege 1704 msiexec.exe Token: SeProfSingleProcessPrivilege 1704 msiexec.exe Token: SeIncBasePriorityPrivilege 1704 msiexec.exe Token: SeCreatePagefilePrivilege 1704 msiexec.exe Token: SeCreatePermanentPrivilege 1704 msiexec.exe Token: SeBackupPrivilege 1704 msiexec.exe Token: SeRestorePrivilege 1704 msiexec.exe Token: SeShutdownPrivilege 1704 msiexec.exe Token: SeDebugPrivilege 1704 msiexec.exe Token: SeAuditPrivilege 1704 msiexec.exe Token: SeSystemEnvironmentPrivilege 1704 msiexec.exe Token: SeChangeNotifyPrivilege 1704 msiexec.exe Token: SeRemoteShutdownPrivilege 1704 msiexec.exe Token: SeUndockPrivilege 1704 msiexec.exe Token: SeSyncAgentPrivilege 1704 msiexec.exe Token: SeEnableDelegationPrivilege 1704 msiexec.exe Token: SeManageVolumePrivilege 1704 msiexec.exe Token: SeImpersonatePrivilege 1704 msiexec.exe Token: SeCreateGlobalPrivilege 1704 msiexec.exe Token: SeBackupPrivilege 2072 vssvc.exe Token: SeRestorePrivilege 2072 vssvc.exe Token: SeAuditPrivilege 2072 vssvc.exe Token: SeBackupPrivilege 2160 msiexec.exe Token: SeRestorePrivilege 2160 msiexec.exe Token: SeShutdownPrivilege 1344 svchost.exe Token: SeCreatePagefilePrivilege 1344 svchost.exe Token: SeShutdownPrivilege 1344 svchost.exe Token: SeCreatePagefilePrivilege 1344 svchost.exe Token: SeShutdownPrivilege 1344 svchost.exe Token: SeCreatePagefilePrivilege 1344 svchost.exe Token: SeSecurityPrivilege 4044 TiWorker.exe Token: SeRestorePrivilege 4044 TiWorker.exe Token: SeBackupPrivilege 4044 TiWorker.exe Token: SeBackupPrivilege 4044 TiWorker.exe Token: SeRestorePrivilege 4044 TiWorker.exe Token: SeSecurityPrivilege 4044 TiWorker.exe Token: SeBackupPrivilege 4044 TiWorker.exe Token: SeRestorePrivilege 4044 TiWorker.exe Token: SeSecurityPrivilege 4044 TiWorker.exe Token: SeBackupPrivilege 4044 TiWorker.exe Token: SeRestorePrivilege 4044 TiWorker.exe Token: SeSecurityPrivilege 4044 TiWorker.exe Token: SeBackupPrivilege 4044 TiWorker.exe Token: SeRestorePrivilege 4044 TiWorker.exe Token: SeSecurityPrivilege 4044 TiWorker.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1704 msiexec.exe
Processes
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C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\PO_3421.msi1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1704
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2160
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:2072
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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:1344
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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:4044
