Analysis
- max time kernel
150s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
09/08/2026, 18:40
General
- Target 2026-08-09_3d4c1cf5e7187986674563996cb85fff_elex_stealc_stop_swisyn_tofsee.exe
- Size 1.3MB
- Sample260809-xbbwtsteke
- SHA256 43e48d8a192e1a0fa60af7bcbc7b3f4ff48f3738832e55f6bae6743f3e5db667
Malware Config
Signatures
- Modifies visibility of hidden/system files in Explorer 2 TTPs 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 9 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- Drops file in System32 directory 2 IoCs
- Drops file in Windows directory 5 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 9 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 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2026-08-09_3d4c1cf5e7187986674563996cb85fff_elex_stealc_stop_swisyn_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_3d4c1cf5e7187986674563996cb85fff_elex_stealc_stop_swisyn_tofsee.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\2026-08-09_3d4c1cf5e7187986674563996cb85fff_elex_stealc_stop_swisyn_tofsee.exec:\users\admin\appdata\local\temp\2026-08-09_3d4c1cf5e7187986674563996cb85fff_elex_stealc_stop_swisyn_tofsee.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\7zSC62DA118\BlueStacksInstaller.exe"C:\Users\Admin\AppData\Local\Temp\7zSC62DA118\BlueStacksInstaller.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\7zSC62DA118\HD-CheckCpu.exe"C:\Users\Admin\AppData\Local\Temp\7zSC62DA118\HD-CheckCpu.exe" --cmd checkHypervEnabled4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Local\Temp\7zSC62DA118\HD-CheckCpu.exe"C:\Users\Admin\AppData\Local\Temp\7zSC62DA118\HD-CheckCpu.exe" --cmd checkSSE44⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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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
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2Replay Monitor
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Downloads
2026-08-09_3d4c1cf5e7187986674563996cb85fff_elex_stealc_stop_swisyn_tofsee.exe
backicon.png
change_hover.png
close_red.png
custom.png
discord_icon.png
installer_bg.jpg
installer_logo.png
installer_minimize.png
loader.png
setpath.png
BlueStacksInstaller.exe
BlueStacksInstaller.exe.config
HD-CheckCpu.exe
JSON.dll
i18n.en-US.txt
ThemeFile
explorer.exe
icsys.icn.exe
spoolsv.exe
svchost.exe
memory/364-179-0x0000000000400000-0x000000000041F000-memory.dmp
memory/988-204-0x0000000000400000-0x000000000041F000-memory.dmp
memory/988-148-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2000-155-0x00000000007F0000-0x0000000000892000-memory.dmp
memory/2000-192-0x0000000020F00000-0x0000000020F0E000-memory.dmp
memory/2000-191-0x0000000020F30000-0x0000000020F68000-memory.dmp
memory/2000-187-0x000000001E900000-0x000000001EE28000-memory.dmp
memory/2000-202-0x00000000226B0000-0x00000000226B8000-memory.dmp
memory/2000-174-0x00000000029D0000-0x0000000002A38000-memory.dmp
memory/4124-178-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4456-180-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4744-181-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4744-0-0x0000000000400000-0x000000000041F000-memory.dmp
memory/5700-205-0x0000000000400000-0x000000000041F000-memory.dmp