Analysis
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max time kernel
132s -
max time network
187s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
30-03-2023 23:40
Static task
static1
Behavioral task
behavioral1
Sample
3CXDesktopApp-18.12.416.msi
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
3CXDesktopApp-18.12.416.msi
Resource
win10v2004-20230220-en
General
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Target
3CXDesktopApp-18.12.416.msi
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Size
97.8MB
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MD5
0eeb1c0133eb4d571178b2d9d14ce3e9
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SHA1
bfecb8ce89a312d2ef4afc64a63847ae11c6f69e
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SHA256
59e1edf4d82fae4978e97512b0331b7eb21dd4b838b850ba46794d9c7a2c0983
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SHA512
85923f35da3638c9aefa152a0a6b7e8f2b8ec6aa6791b4d4a758c8899d04be25fb480253a9fbf27d9c108c6635347af2705d97d962faea497a6649f8b63ec2fc
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SSDEEP
3145728:Ujlq80AfkRGgGGo4yrtD1PQLzth2TBcMa8uGj2A:8lqmijypD1YPthSkS
Malware Config
Signatures
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Blocklisted process makes network request 5 IoCs
flow pid Process 15 1164 msiexec.exe 17 1164 msiexec.exe 21 1164 msiexec.exe 23 1164 msiexec.exe 25 1164 msiexec.exe -
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) \??\I: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\F: msiexec.exe File opened (read-only) \??\G: msiexec.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 opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Device Parameters vssvc.exe 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 -
Suspicious use of AdjustPrivilegeToken 37 IoCs
description pid Process Token: SeShutdownPrivilege 1164 msiexec.exe Token: SeIncreaseQuotaPrivilege 1164 msiexec.exe Token: SeSecurityPrivilege 4552 msiexec.exe Token: SeCreateTokenPrivilege 1164 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 1164 msiexec.exe Token: SeLockMemoryPrivilege 1164 msiexec.exe Token: SeIncreaseQuotaPrivilege 1164 msiexec.exe Token: SeMachineAccountPrivilege 1164 msiexec.exe Token: SeTcbPrivilege 1164 msiexec.exe Token: SeSecurityPrivilege 1164 msiexec.exe Token: SeTakeOwnershipPrivilege 1164 msiexec.exe Token: SeLoadDriverPrivilege 1164 msiexec.exe Token: SeSystemProfilePrivilege 1164 msiexec.exe Token: SeSystemtimePrivilege 1164 msiexec.exe Token: SeProfSingleProcessPrivilege 1164 msiexec.exe Token: SeIncBasePriorityPrivilege 1164 msiexec.exe Token: SeCreatePagefilePrivilege 1164 msiexec.exe Token: SeCreatePermanentPrivilege 1164 msiexec.exe Token: SeBackupPrivilege 1164 msiexec.exe Token: SeRestorePrivilege 1164 msiexec.exe Token: SeShutdownPrivilege 1164 msiexec.exe Token: SeDebugPrivilege 1164 msiexec.exe Token: SeAuditPrivilege 1164 msiexec.exe Token: SeSystemEnvironmentPrivilege 1164 msiexec.exe Token: SeChangeNotifyPrivilege 1164 msiexec.exe Token: SeRemoteShutdownPrivilege 1164 msiexec.exe Token: SeUndockPrivilege 1164 msiexec.exe Token: SeSyncAgentPrivilege 1164 msiexec.exe Token: SeEnableDelegationPrivilege 1164 msiexec.exe Token: SeManageVolumePrivilege 1164 msiexec.exe Token: SeImpersonatePrivilege 1164 msiexec.exe Token: SeCreateGlobalPrivilege 1164 msiexec.exe Token: SeBackupPrivilege 4476 vssvc.exe Token: SeRestorePrivilege 4476 vssvc.exe Token: SeAuditPrivilege 4476 vssvc.exe Token: SeBackupPrivilege 4552 msiexec.exe Token: SeRestorePrivilege 4552 msiexec.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1164 msiexec.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\3CXDesktopApp-18.12.416.msi1⤵
- Blocklisted process makes network request
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1164
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4552
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:4476