Analysis
- max time kernel
134s - max time network
160s - platform
windows10-2004_x64 - resource
win10v2004-20231023-en - resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system - submitted
26/10/2023, 20:02
Static task
static1
Behavioral task
behavioral1
Sample
hyreszxc.msi
Resource
win7-20231023-en
windows7-x64
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
hyreszxc.msi
Resource
win10v2004-20231023-en
windows10-2004-x64
5 signatures
150 seconds
General
- Target hyreszxc.msi
- Size 8.6MB
- Sample231026-yr4gfsha49
- SHA256 7a92489050089498d6ec05fb7bdfad37da13bb965023d126c41789c5756e4e02
- MD5 a0e0687c1f4e8f50243db910ebf2e623
- SHA1 72629d1d68dbfb601cc8390d642ad7a1289fb946
- SHA512 31f631b7ec686cab39b0d5edf7e2b62b43f22cb74479c56fefb6d226ba1b89162a41d7dcaa2f9d81c4633f46c782d3229805bf6a9b2336404066bd120e3cf721
- SSDEEP 196608:5kdAirk9zqV8GinTPMoGkd/ROfL0uUmN4in1VAnEVYxVSe3yt/:edAirAzqVAnTPMgd+0ogHnF3y
- MD5 SHA1 SHA512 SSDEEP
Score
6/10
Malware Config
Signatures
- Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\O: 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 1224 msiexec.exe Token: SeIncreaseQuotaPrivilege 1224 msiexec.exe Token: SeSecurityPrivilege 3776 msiexec.exe Token: SeCreateTokenPrivilege 1224 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 1224 msiexec.exe Token: SeLockMemoryPrivilege 1224 msiexec.exe Token: SeIncreaseQuotaPrivilege 1224 msiexec.exe Token: SeMachineAccountPrivilege 1224 msiexec.exe Token: SeTcbPrivilege 1224 msiexec.exe Token: SeSecurityPrivilege 1224 msiexec.exe Token: SeTakeOwnershipPrivilege 1224 msiexec.exe Token: SeLoadDriverPrivilege 1224 msiexec.exe Token: SeSystemProfilePrivilege 1224 msiexec.exe Token: SeSystemtimePrivilege 1224 msiexec.exe Token: SeProfSingleProcessPrivilege 1224 msiexec.exe Token: SeIncBasePriorityPrivilege 1224 msiexec.exe Token: SeCreatePagefilePrivilege 1224 msiexec.exe Token: SeCreatePermanentPrivilege 1224 msiexec.exe Token: SeBackupPrivilege 1224 msiexec.exe Token: SeRestorePrivilege 1224 msiexec.exe Token: SeShutdownPrivilege 1224 msiexec.exe Token: SeDebugPrivilege 1224 msiexec.exe Token: SeAuditPrivilege 1224 msiexec.exe Token: SeSystemEnvironmentPrivilege 1224 msiexec.exe Token: SeChangeNotifyPrivilege 1224 msiexec.exe Token: SeRemoteShutdownPrivilege 1224 msiexec.exe Token: SeUndockPrivilege 1224 msiexec.exe Token: SeSyncAgentPrivilege 1224 msiexec.exe Token: SeEnableDelegationPrivilege 1224 msiexec.exe Token: SeManageVolumePrivilege 1224 msiexec.exe Token: SeImpersonatePrivilege 1224 msiexec.exe Token: SeCreateGlobalPrivilege 1224 msiexec.exe Token: SeBackupPrivilege 4896 vssvc.exe Token: SeRestorePrivilege 4896 vssvc.exe Token: SeAuditPrivilege 4896 vssvc.exe Token: SeBackupPrivilege 3776 msiexec.exe Token: SeRestorePrivilege 3776 msiexec.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1224 msiexec.exe - Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\hyreszxc.msi1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1224
-
C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3776
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
PID:4896