Analysis
- max time kernel
150s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20250619-en - resource tags
- submitted
08/05/2026, 12:21
General
- Target rustdeskx86_64.exe
- Size 23.1MB
- Sample260508-pjct4act4n
- SHA256 422ce31131e6537ea4f611ebf4a4d1804f28a6f58c83aa05065071c5958f1551
Malware Config
Signatures
- Executes dropped EXE 4 IoCs
- Loads dropped DLL 56 IoCs
- Modifies file permissions 1 TTPs 2 IoCs
- RustDesk remote access tool
RustDesk is an open-source remote admin tool.
- Drops file in Windows directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Kills process with taskkill 2 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\rustdeskx86_64.exe"C:\Users\Admin\AppData\Local\Temp\rustdeskx86_64.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\taskkill.exe"taskkill" /F /IM RuntimeBroker_rustdesk.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\rustdesk\rustdesk.exe"C:\Users\Admin\AppData\Local\rustdesk\.\rustdesk.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\icacls.exe"icacls" C:\ProgramData\RustDesk /grant *S-1-1-0:(OI)(CI)F /T3⤵
- Modifies file permissions
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C:\Windows\system32\icacls.exe"icacls" C:\ProgramData\RustDesk\shared_memory_portable_service /grant *S-1-1-0:(OI)(CI)F /T3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\rustdesk\rustdesk.exe"C:\Users\Admin\AppData\Local\rustdesk\rustdesk.exe" --portable-service3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\rustdesk\rustdesk.exe"C:\Users\Admin\AppData\Local\rustdesk\rustdesk.exe" --run-as-system4⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Windows directory
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C:\Windows\system32\cmd.exe"cmd" /c "taskkill /F /IM RuntimeBroker_rustdesk.exe"3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\taskkill.exetaskkill /F /IM RuntimeBroker_rustdesk.exe4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\rustdesk\rustdesk.exe"C:\Users\Admin\AppData\Local\rustdesk\.\rustdesk.exe" --check-hwcodec-config3⤵
- Executes dropped EXE
- Loads dropped DLL
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
shared_memory_portable_service
app.so
icudtl.dat
desktop_drop_plugin.dll
desktop_multi_window_plugin.dll
file_selector_windows_plugin.dll
flutter_custom_cursor_plugin.dll
flutter_gpu_texture_renderer_plugin.dll
flutter_windows.dll
librustdesk.dll
printer_driver_adapter.dll
rustdesk.exe
screen_retriever_plugin.dll
texture_rgba_renderer_plugin.dll
uni_links_desktop_plugin.dll
url_launcher_windows_plugin.dll
window_manager_plugin.dll
window_size_plugin.dll
memory/1840-109-0x0000025616EF0000-0x0000025616F4D000-memory.dmp
memory/3324-245-0x0000021C78790000-0x0000021C787ED000-memory.dmp
memory/3336-202-0x000002597C810000-0x000002597C86D000-memory.dmp
memory/3864-201-0x0000022702130000-0x000002270218D000-memory.dmp
memory/4076-207-0x000001B5420C0000-0x000001B54211D000-memory.dmp
memory/4800-105-0x0000016164B40000-0x0000016164B9D000-memory.dmp
memory/5044-148-0x0000022BC0FE0000-0x0000022BC0FE1000-memory.dmp
memory/5044-152-0x0000022BC0FD0000-0x0000022BC0FD1000-memory.dmp
memory/5044-151-0x0000022BC3530000-0x0000022BC41D5000-memory.dmp
memory/5044-150-0x0000022BC3530000-0x0000022BC41D5000-memory.dmp
memory/5044-238-0x0000022BBE0E0000-0x0000022BBE13D000-memory.dmp
memory/5044-149-0x0000022BC3530000-0x0000022BC41D5000-memory.dmp