Analysis
- user interaction
yes - max time kernel
150s - max time network
95s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
27/08/2026, 15:03
General
- Target NOVA UD EMULATOR VIP.exe
- Size 26.3MB
- Sample260827-sff9wsaa73
- SHA256 2f542f8f946ac8c5e7add21214a5909ed2d448ee84a560c4be489630f5c957ff
Malware Config
Signatures
- Family: Brute Ratel C4
A customized command and control framework for red teaming and adversary simulation.
- Modifies visibility of hidden/system files in Explorer 2 TTPs 2 IoCs
- Executes dropped EXE 6 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- Drops file in System32 directory 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Drops file in Windows directory 5 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 2 IoCs
- Suspicious use of SetWindowsHookEx 12 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\NOVA UD EMULATOR VIP.exe"C:\Users\Admin\AppData\Local\Temp\NOVA UD EMULATOR VIP.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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\??\c:\users\admin\appdata\local\temp\nova ud emulator vip.exe"c:\users\admin\appdata\local\temp\nova ud emulator vip.exe "2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
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C:\Windows\Resources\Themes\icsys.icn.exeC:\Windows\Resources\Themes\icsys.icn.exe2⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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\??\c:\windows\resources\themes\explorer.exec:\windows\resources\themes\explorer.exe3⤵
- Modifies visibility of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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\??\c:\windows\resources\spoolsv.exec:\windows\resources\spoolsv.exe SE4⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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\??\c:\windows\resources\svchost.exec:\windows\resources\svchost.exe5⤵
- Modifies visibility of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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\??\c:\windows\resources\spoolsv.exec:\windows\resources\spoolsv.exe PR6⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
icsys.icn.exe
spoolsv.exe
svchost.exe
nova ud emulator vip.exe
explorer.exe
memory/2236-49-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2824-46-0x0000000000400000-0x000000000041F000-memory.dmp
memory/3076-50-0x0000000000400000-0x000000000041F000-memory.dmp
memory/3112-0-0x0000000000400000-0x000000000041F000-memory.dmp
memory/3112-48-0x0000000000400000-0x000000000041F000-memory.dmp
memory/3260-45-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4344-9-0x0000000140119000-0x000000014116A000-memory.dmp
memory/5060-13-0x0000000000400000-0x000000000041F000-memory.dmp
memory/5060-47-0x0000000000400000-0x000000000041F000-memory.dmp