Analysis
- max time kernel
150s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
16/05/2026, 20:23
General
- Target 2026-05-16_2fddc7029d8134b6937b4a3e0652af02_elex_stealc_stop_swisyn_tofsee.exe
- Size 1.0MB
- Sample260516-y58ckaht21
- SHA256 9a16dc316986e486d696d3dd38bbc754a99e1f8f1ae3d83daea43a17794e4729
Malware Config
Signatures
- Modifies visibility of hidden/system files in Explorer 2 TTPs 2 IoCs
- 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 8 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\2026-05-16_2fddc7029d8134b6937b4a3e0652af02_elex_stealc_stop_swisyn_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-16_2fddc7029d8134b6937b4a3e0652af02_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\2026-05-16_2fddc7029d8134b6937b4a3e0652af02_elex_stealc_stop_swisyn_tofsee.exec:\users\admin\appdata\local\temp\2026-05-16_2fddc7029d8134b6937b4a3e0652af02_elex_stealc_stop_swisyn_tofsee.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\7zS4D2F19A8\BlueStacksInstaller.exe"C:\Users\Admin\AppData\Local\Temp\7zS4D2F19A8\BlueStacksInstaller.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\7zS4D2F19A8\HD-CheckCpu.exe"C:\Users\Admin\AppData\Local\Temp\7zS4D2F19A8\HD-CheckCpu.exe" --cmd checkHypervEnabled4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Users\Admin\AppData\Local\Temp\7zS4D2F19A8\HD-CheckCpu.exe"C:\Users\Admin\AppData\Local\Temp\7zS4D2F19A8\HD-CheckCpu.exe" --cmd checkSSE44⤵
- Executes dropped EXE
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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
2026-05-16_2fddc7029d8134b6937b4a3e0652af02_elex_stealc_stop_swisyn_tofsee.exe
backicon.png
change_hover.png
close_red.png
custom.png
discord_icon.png
folder.png
help_icon.png
info_icon.png
installer_bg.jpg
installer_logo.png
installer_minimize.png
loader.png
logo_text.png
setpath.png
BlueStacksInstaller.exe
BlueStacksInstaller.exe.config
HD-CheckCpu.exe
JSON.dll
i18n.en-US.txt
ThemeFile
installer_bg_1.jpg
explorer.exe
icsys.icn.exe
spoolsv.exe
svchost.exe
memory/1332-189-0x0000000000400000-0x000000000041F000-memory.dmp
memory/1468-231-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2248-0-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2248-188-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2328-230-0x0000000000400000-0x000000000041F000-memory.dmp
memory/3380-187-0x0000000000400000-0x000000000041F000-memory.dmp
memory/3380-168-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4028-165-0x0000000000210000-0x00000000002B4000-memory.dmp
memory/4028-194-0x000000001E690000-0x000000001EBB8000-memory.dmp
memory/4028-213-0x00000000224F0000-0x00000000224F8000-memory.dmp
memory/4028-185-0x000000001D530000-0x000000001D598000-memory.dmp
memory/4028-199-0x000000001DD40000-0x000000001DD4E000-memory.dmp
memory/4028-198-0x000000001DD70000-0x000000001DDA8000-memory.dmp
memory/4920-186-0x0000000000400000-0x000000000041F000-memory.dmp