Analysis
- max time kernel
118s - max time network
120s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
29/06/2026, 22:54
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
utau0419cInstaller.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
15 signatures
150 seconds
Behavioral task
behavioral2
Sample
utau0419cInstaller.exe
Resource
win11ltsc2024-20260629-en
windows11-ltsc_2024-x64
8 signatures
150 seconds
General
- Target utau0419cInstaller.exe
- Size 6.5MB
- Sample260629-2vrhvahs2w
- SHA256 144b853bd7066a736ef8347118cf82c18b7a5be313f7edf66571e5d9816828ad
- MD5 b3fbd653a84017e567d7cfc7c9d14456
- SHA1 a39e627f0d243b21b7f14764f99f8898b2c13f5b
- SHA512 76ac4e098dbf36c6dbf217621bfa66e359a21af23ddaaa9c9bde1addcfc7268e2a350f9d27ea63d0dd961eac0d64d589cc88c1ce5ab3503ced465849ae593bb2
- SSDEEP 196608:oLq1m36iIMa4PU+9zz+9HIedVRMrzwK5TPRga:owC6i7akFiqMVarz5T
- TLSH T14A66338BD5C16AABE294E73C80E62BD771F8B4D428487EE667949149894E3D0F33730D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1020 setup.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" utau0419cInstaller.exe - 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) \??\D: setup.exe File opened (read-only) \??\I: setup.exe File opened (read-only) \??\K: setup.exe File opened (read-only) \??\R: setup.exe File opened (read-only) \??\S: setup.exe File opened (read-only) \??\T: setup.exe File opened (read-only) \??\U: setup.exe File opened (read-only) \??\J: setup.exe File opened (read-only) \??\L: setup.exe File opened (read-only) \??\O: setup.exe File opened (read-only) \??\P: setup.exe File opened (read-only) \??\Q: setup.exe File opened (read-only) \??\X: setup.exe File opened (read-only) \??\Y: setup.exe File opened (read-only) \??\M: setup.exe File opened (read-only) \??\W: setup.exe File opened (read-only) \??\Z: setup.exe File opened (read-only) \??\B: setup.exe File opened (read-only) \??\G: setup.exe File opened (read-only) \??\H: setup.exe File opened (read-only) \??\N: setup.exe File opened (read-only) \??\V: setup.exe File opened (read-only) \??\A: setup.exe - System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language utau0419cInstaller.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language setup.exe - Suspicious use of AdjustPrivilegeToken 32 IoCs
description pid Process Token: SeShutdownPrivilege 1020 setup.exe Token: SeIncreaseQuotaPrivilege 1020 setup.exe Token: SeSecurityPrivilege 756 msiexec.exe Token: SeCreateTokenPrivilege 1020 setup.exe Token: SeAssignPrimaryTokenPrivilege 1020 setup.exe Token: SeLockMemoryPrivilege 1020 setup.exe Token: SeIncreaseQuotaPrivilege 1020 setup.exe Token: SeMachineAccountPrivilege 1020 setup.exe Token: SeTcbPrivilege 1020 setup.exe Token: SeSecurityPrivilege 1020 setup.exe Token: SeTakeOwnershipPrivilege 1020 setup.exe Token: SeLoadDriverPrivilege 1020 setup.exe Token: SeSystemProfilePrivilege 1020 setup.exe Token: SeSystemtimePrivilege 1020 setup.exe Token: SeProfSingleProcessPrivilege 1020 setup.exe Token: SeIncBasePriorityPrivilege 1020 setup.exe Token: SeCreatePagefilePrivilege 1020 setup.exe Token: SeCreatePermanentPrivilege 1020 setup.exe Token: SeBackupPrivilege 1020 setup.exe Token: SeRestorePrivilege 1020 setup.exe Token: SeShutdownPrivilege 1020 setup.exe Token: SeDebugPrivilege 1020 setup.exe Token: SeAuditPrivilege 1020 setup.exe Token: SeSystemEnvironmentPrivilege 1020 setup.exe Token: SeChangeNotifyPrivilege 1020 setup.exe Token: SeRemoteShutdownPrivilege 1020 setup.exe Token: SeUndockPrivilege 1020 setup.exe Token: SeSyncAgentPrivilege 1020 setup.exe Token: SeEnableDelegationPrivilege 1020 setup.exe Token: SeManageVolumePrivilege 1020 setup.exe Token: SeImpersonatePrivilege 1020 setup.exe Token: SeCreateGlobalPrivilege 1020 setup.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1020 setup.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 756 msiexec.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3524 wrote to memory of 1020 3524 utau0419cInstaller.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\utau0419cInstaller.exe"C:\Users\Admin\AppData\Local\Temp\utau0419cInstaller.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3524 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\setup.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\setup.exe2⤵
- Executes dropped EXE
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1020
-
-
C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:756
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\setup.exe
- Size 345KB
- SHA256 8f1b93d05b2cd046f87f10ed5c11430bde70439caf34dc6bb81b12ae2d25eb9f
- MD5 d60900a7b0fff3bd9f109b3cc00f7804
- SHA1 556f234587b8012dacc898b597a210840e9b3543
- SHA512 e9e55339c0fe97ef539c033be4cfcfeadb603589c7c3b5dc467a45a324304d0296fc23b11722bbb978cf7b58c9de39aeb350f95963fff4b9146ab6c83c43392e
- SSDEEP 6144:wBcSdtUgfIk6GCBes2xMdLRmkw5HJZ5EAhsqFbJQojDuUl0/A:wDGgfIkXCBepCdLsZ5EWQeDuUlZ
- TLSH T10874AD137BE0E037E56301714A278734EBB9FC646C35490367C17B0EAEB1593EA29B5A
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\utaustup.msi
- Size 6.5MB
- SHA256 780c05bb901ca7aa0c1a33ee2c2de3ba33a67446cf8a6ff85565ba2821075be6
- MD5 49c48e56c022ca1a54cb36e015cdec58
- SHA1 cd3bbdbd3f427a92168059a9f6d039a269b287c8
- SHA512 33bf24ee4695a96d9e8e431124820e95c246f4e1d98bc2ca24932cf05e092f6574f7cf4a5872c6896cf1abc3e5b7ea3ef252e9060ef0754e1598e468c695b58e
- SSDEEP 196608:lkZqnNlWOI/qG4reQUHCJ0FLzOxj68f8NXgaU/L:lkKvWOqVGwdpzOd68E/o
- TLSH T12866334FEC822F37C2C98AB9801F2B6FF5605410060656E2BF38A60D5D7A7A563DB5CD
- MD5 SHA1 SHA512 SSDEEP TLSH