Analysis
- max time kernel
151s - max time network
128s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
27/10/2026, 16:50
General
- Target MosaicVPN-Setup-x64-v0.3.73.exe
- Size 24.9MB
- Sample261027-vb93hsfv3r
- SHA256 49b56e1b98470f07c6442735dc0dfb589434ab7ce5f7a8edf8217019d13ae1dc
Malware Config
Signatures
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 11 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Inno Setup is an open-source installation builder for Windows applications. 3 IoCs
Inno Setup installer
- Modifies registry class 16 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\MosaicVPN-Setup-x64-v0.3.73.exe"C:\Users\Admin\AppData\Local\Temp\MosaicVPN-Setup-x64-v0.3.73.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-KONJWWYNHJ.tmp\MosaicVPN-Setup-x64-v0.3.73.tmp"C:\Users\Admin\AppData\Local\Temp\is-KONJWWYNHJ.tmp\MosaicVPN-Setup-x64-v0.3.73.tmp" /SL5="$400B4,24887956,887296,C:\Users\Admin\AppData\Local\Temp\MosaicVPN-Setup-x64-v0.3.73.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Programs\MosaicVPN\MosaicVPN.exe"C:\Users\Admin\AppData\Local\Programs\MosaicVPN\MosaicVPN.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
MosaicVPN.exe
app_links_plugin.dll
app.so
FontManifest.json
NativeAssetsManifest.json
is-WUA6IYHFGD.tmp
MaterialIcons-Regular.otf
icudtl.dat
flutter_secure_storage_windows_plugin.dll
flutter_windows.dll
screen_retriever_windows_plugin.dll
share_plus_plugin.dll
system_tray_plugin.dll
url_launcher_windows_plugin.dll
window_manager_plugin.dll
MosaicVPN-Setup-x64-v0.3.73.tmp
memory/1092-141-0x0000000000BA0000-0x0000000000FE1000-memory.dmp
memory/1092-64-0x0000000000BA0000-0x0000000000FE1000-memory.dmp
memory/1092-12-0x0000000000BA0000-0x0000000000FE1000-memory.dmp
memory/1092-6-0x0000000003140000-0x0000000003141000-memory.dmp
memory/1092-9-0x0000000000BA0000-0x0000000000FE1000-memory.dmp
memory/1092-10-0x0000000003140000-0x0000000003141000-memory.dmp
memory/2032-142-0x0000000000190000-0x0000000000277000-memory.dmp
memory/2032-0-0x0000000000190000-0x0000000000277000-memory.dmp
memory/2032-8-0x0000000000190000-0x0000000000277000-memory.dmp
memory/6008-136-0x0000022CB4BF0000-0x0000022CB5875000-memory.dmp
memory/6008-135-0x0000022CB4BF0000-0x0000022CB5875000-memory.dmp
memory/6008-137-0x0000022CB4BF0000-0x0000022CB5875000-memory.dmp
memory/6008-134-0x0000022CB44F0000-0x0000022CB44F1000-memory.dmp
memory/6008-138-0x0000022CB4500000-0x0000022CB4501000-memory.dmp