Analysis
- max time kernel
148s - max time network
155s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260617-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
25/06/2026, 12:23
Static task
static1
Behavioral task
behavioral1
Sample
tightvnc-2.8.87-gpl-setup-64bit.msi
Resource
win10v2004-20260513-en
windows10-2004-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
tightvnc-2.8.87-gpl-setup-64bit.msi
Resource
win11ltsc2024-20260617-en
windows11-ltsc_2024-x64
9 signatures
150 seconds
General
- Target tightvnc-2.8.87-gpl-setup-64bit.msi
- Size 2.4MB
- Sample260625-pkg57sby2v
- SHA256 aa256612c5b8bb387355e9c4bce6068bf9ba77ef849f54efcf6087d86b86f52a
- MD5 d1131d002d9ba5cdd27cec2482261fd5
- SHA1 d156c2a4acf34896db5a2d376d9b2ae930d9fb00
- SHA512 fe58630d2d94d95b801a1e8b0692486b3e4e884adca5b159beab5690804aa2cf6f1c7b362be7f96c5999a4b170fe1260f1f592f7ddcfbda074937fd45ed6a469
- SSDEEP 49152:F8iT1ASLd4V0/yDtAN0H4kBpw2/OgyAt0W5tlBgypnUI4gFkdqXwdajy:F8iT6maCqYkBpJH/0W5xgymldd6A
- TLSH T1A4C5F1177E814036D5A60E3684778B61AB39BC205B61878F5344722DDEF36C0AF76BE2
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Loads dropped DLL 1 IoCs
pid Process 1840 MsiExec.exe - Badlisted process makes network request 1 IoCs
Network request originating from process or tool commonly abused by malware.
flow pid Process 4 5888 msiexec.exe - Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\D: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\D: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\B: 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) \??\Q: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\S: 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) \??\Z: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\Z: msiexec.exe - Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
pid Process 5888 msiexec.exe - System Location Discovery: System Language Discovery 1 TTPs 1 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 MsiExec.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 5888 msiexec.exe Token: SeIncreaseQuotaPrivilege 5888 msiexec.exe Token: SeSecurityPrivilege 5600 msiexec.exe Token: SeCreateTokenPrivilege 5888 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 5888 msiexec.exe Token: SeLockMemoryPrivilege 5888 msiexec.exe Token: SeIncreaseQuotaPrivilege 5888 msiexec.exe Token: SeMachineAccountPrivilege 5888 msiexec.exe Token: SeTcbPrivilege 5888 msiexec.exe Token: SeSecurityPrivilege 5888 msiexec.exe Token: SeTakeOwnershipPrivilege 5888 msiexec.exe Token: SeLoadDriverPrivilege 5888 msiexec.exe Token: SeSystemProfilePrivilege 5888 msiexec.exe Token: SeSystemtimePrivilege 5888 msiexec.exe Token: SeProfSingleProcessPrivilege 5888 msiexec.exe Token: SeIncBasePriorityPrivilege 5888 msiexec.exe Token: SeCreatePagefilePrivilege 5888 msiexec.exe Token: SeCreatePermanentPrivilege 5888 msiexec.exe Token: SeBackupPrivilege 5888 msiexec.exe Token: SeRestorePrivilege 5888 msiexec.exe Token: SeShutdownPrivilege 5888 msiexec.exe Token: SeDebugPrivilege 5888 msiexec.exe Token: SeAuditPrivilege 5888 msiexec.exe Token: SeSystemEnvironmentPrivilege 5888 msiexec.exe Token: SeChangeNotifyPrivilege 5888 msiexec.exe Token: SeRemoteShutdownPrivilege 5888 msiexec.exe Token: SeUndockPrivilege 5888 msiexec.exe Token: SeSyncAgentPrivilege 5888 msiexec.exe Token: SeEnableDelegationPrivilege 5888 msiexec.exe Token: SeManageVolumePrivilege 5888 msiexec.exe Token: SeImpersonatePrivilege 5888 msiexec.exe Token: SeCreateGlobalPrivilege 5888 msiexec.exe Token: SeCreateTokenPrivilege 5888 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 5888 msiexec.exe Token: SeLockMemoryPrivilege 5888 msiexec.exe Token: SeIncreaseQuotaPrivilege 5888 msiexec.exe Token: SeMachineAccountPrivilege 5888 msiexec.exe Token: SeTcbPrivilege 5888 msiexec.exe Token: SeSecurityPrivilege 5888 msiexec.exe Token: SeTakeOwnershipPrivilege 5888 msiexec.exe Token: SeLoadDriverPrivilege 5888 msiexec.exe Token: SeSystemProfilePrivilege 5888 msiexec.exe Token: SeSystemtimePrivilege 5888 msiexec.exe Token: SeProfSingleProcessPrivilege 5888 msiexec.exe Token: SeIncBasePriorityPrivilege 5888 msiexec.exe Token: SeCreatePagefilePrivilege 5888 msiexec.exe Token: SeCreatePermanentPrivilege 5888 msiexec.exe Token: SeBackupPrivilege 5888 msiexec.exe Token: SeRestorePrivilege 5888 msiexec.exe Token: SeShutdownPrivilege 5888 msiexec.exe Token: SeDebugPrivilege 5888 msiexec.exe Token: SeAuditPrivilege 5888 msiexec.exe Token: SeSystemEnvironmentPrivilege 5888 msiexec.exe Token: SeChangeNotifyPrivilege 5888 msiexec.exe Token: SeRemoteShutdownPrivilege 5888 msiexec.exe Token: SeUndockPrivilege 5888 msiexec.exe Token: SeSyncAgentPrivilege 5888 msiexec.exe Token: SeEnableDelegationPrivilege 5888 msiexec.exe Token: SeManageVolumePrivilege 5888 msiexec.exe Token: SeImpersonatePrivilege 5888 msiexec.exe Token: SeCreateGlobalPrivilege 5888 msiexec.exe Token: SeCreateTokenPrivilege 5888 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 5888 msiexec.exe Token: SeLockMemoryPrivilege 5888 msiexec.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 5888 msiexec.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 5888 msiexec.exe 5600 msiexec.exe 1840 MsiExec.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5600 wrote to memory of 1840 5600 msiexec.exe 90
Processes
-
C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\tightvnc-2.8.87-gpl-setup-64bit.msi1⤵
- Badlisted process makes network request
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:5888
-
C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5600 -
C:\Windows\syswow64\MsiExec.exeC:\Windows\syswow64\MsiExec.exe -Embedding AF7E4A8C3BFC856ABB8DB3FABD6B3195 C2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:1840
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\MSI8CB6.tmp
- Size 211KB
- SHA256 c8d190d5be1efd2d52f72a72ae9dfa3940ab3faceb626405959349654fe18b74
- MD5 a3ae5d86ecf38db9427359ea37a5f646
- SHA1 eb4cb5ff520717038adadcc5e1ef8f7c24b27a90
- SHA512 96ecb3bc00848eeb2836e289ef7b7b2607d30790ffd1ae0e0acfc2e14f26a991c6e728b8dc67280426e478c70231f9e13f514e52c8ce7d956c1fad0e322d98e0
- SSDEEP 3072:/Jz/kyKA1X1dxbOZU32KndB4GLvyui2lhQtEaY4IDflQn0xHuudQ+cxEHSiZxaQ:/t/kE1jOZy2KL4GBiwQtEa4L2sV
- TLSH T1ED249D316094943EE7FA0936997ED671AE3DF2341760C9AEC3848C0E6D644C16BB7B27
- MD5 SHA1 SHA512 SSDEEP TLSH