Analysis
- user interaction
yes - max time kernel
63s - max time network
64s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
18/08/2026, 00:41
Errors
General
- Target 6666.exe
- Size 149KB
- Sample260818-a1vc5sshmb
- SHA256 d2278ae5a1d867e5e87ea9925bec27117390b08bd59adf10e7628a464e34ae71
Malware Config
Signatures
- 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
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- Drops file in System32 directory 2 IoCs
- Drops file in Windows directory 5 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 7 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 AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 12 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\6666.exe"C:\Users\Admin\AppData\Local\Temp\6666.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\6666.exec:\users\admin\appdata\local\temp\6666.exe2⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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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
-
\??\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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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x38c 0x2c81⤵
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
6666.exe
explorer.exe
icsys.icn.exe
spoolsv.exe
svchost.exe
memory/412-51-0x0000000000400000-0x000000000041F000-memory.dmp
memory/412-0-0x0000000000400000-0x000000000041F000-memory.dmp
memory/1472-50-0x0000000000400000-0x000000000041F000-memory.dmp
memory/1472-16-0x0000000000400000-0x000000000041F000-memory.dmp
memory/3008-49-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4384-48-0x0000000000400000-0x000000000041F000-memory.dmp
memory/5004-12-0x0000000005A10000-0x0000000005A20000-memory.dmp
memory/5004-11-0x0000000005E10000-0x00000000063B4000-memory.dmp
memory/5004-10-0x0000000005710000-0x00000000057A2000-memory.dmp
memory/5004-9-0x0000000000D90000-0x0000000000D9A000-memory.dmp
memory/5004-52-0x0000000005A10000-0x0000000005A20000-memory.dmp