Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'RuntimeBroker' = '"<Full path to file>"'
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\runtimebroker.exe
Sets the following service settings
- [HKLM\SYSTEM\CurrentControlSet\Services\IKEEXT] 'Start' = '00000002'
Malicious functions
To bypass firewall, removes or modifies the following registry keys
- [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile] 'EnableFirewall' = '00000000'
- [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
adds antivirus exclusion:
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -NoProfile -ExecutionPolicy Bypass -Command "Set-MpPreference -DisableRealtimeMonitoring $true;Set-MpPreference -DisableBehaviorMonitoring $true;Set-MpPreference -DisableOnAccessProtection $tru...
Executes the following
- '<SYSTEM32>\netsh.exe' advfirewall set allprofiles state off
Modifies file system
Creates the following files
- %TEMP%\_mei00000de02\msvcp140.dll
- %TEMP%\_mei00000de02\pil\_avif.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\pil\_imaging.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\pil\_imagingcms.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\pil\_imagingmath.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\pil\_imagingtk.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\pil\_webp.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\vcruntime140.dll
- %TEMP%\_mei00000de02\vcruntime140_1.dll
- %TEMP%\_mei00000de02\_asyncio.pyd
- %TEMP%\_mei00000de02\_baked_config.py
- %TEMP%\_mei00000de02\_bz2.pyd
- %TEMP%\_mei00000de02\_ctypes.pyd
- %TEMP%\_mei00000de02\_decimal.pyd
- %TEMP%\_mei00000de02\_elementtree.pyd
- %TEMP%\_mei00000de02\_hashlib.pyd
- %TEMP%\_mei00000de02\_lzma.pyd
- %TEMP%\_mei00000de02\_multiprocessing.pyd
- %TEMP%\_mei00000de02\_overlapped.pyd
- %TEMP%\_mei00000de02\_queue.pyd
- %TEMP%\_mei00000de02\_socket.pyd
- %TEMP%\_mei00000de02\_sqlite3.pyd
- %TEMP%\_mei00000de02\_ssl.pyd
- %TEMP%\_mei00000de02\_uuid.pyd
- %TEMP%\_mei00000de02\_wmi.pyd
- %TEMP%\_mei00000de02\_zstd.pyd
- %TEMP%\_mei00000de02\api-ms-win-core-console-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-datetime-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-debug-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-errorhandling-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-fibers-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-file-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-file-l1-2-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-file-l2-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-handle-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-heap-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-interlocked-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-libraryloader-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-localization-l1-2-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-memory-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-namedpipe-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-processenvironment-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-processthreads-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-processthreads-l1-1-1.dll
- %TEMP%\_mei00000de02\api-ms-win-core-profile-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-rtlsupport-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-string-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-synch-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-synch-l1-2-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-sysinfo-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-timezone-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-core-util-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-conio-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-convert-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-environment-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-filesystem-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-heap-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-locale-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-math-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-process-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-runtime-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-stdio-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-string-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-time-l1-1-0.dll
- %TEMP%\_mei00000de02\api-ms-win-crt-utility-l1-1-0.dll
- %TEMP%\_mei00000de02\base_library.zip
- %TEMP%\_mei00000de02\charset_normalizer\md.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\charset_normalizer\md__mypyc.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\cv2\__init__.py
- %TEMP%\_mei00000de02\cv2\config-3.py
- %TEMP%\_mei00000de02\cv2\config.py
- %TEMP%\_mei00000de02\cv2\cv2.pyd
- %TEMP%\_mei00000de02\cv2\data\__init__.py
- %TEMP%\_mei00000de02\cv2\load_config_py3.py
- %TEMP%\_mei00000de02\cv2\mat_wrapper\__init__.py
- %TEMP%\_mei00000de02\cv2\misc\__init__.py
- %TEMP%\_mei00000de02\cv2\misc\version.py
- %TEMP%\_mei00000de02\cv2\opencv_videoio_ffmpeg500_64.dll
- %TEMP%\_mei00000de02\cv2\typing\__init__.py
- %TEMP%\_mei00000de02\cv2\utils\__init__.py
- %TEMP%\_mei00000de02\cv2\version.py
- %TEMP%\_mei00000de02\libcrypto-3.dll
- %TEMP%\_mei00000de02\libffi-8.dll
- %TEMP%\_mei00000de02\libssl-3.dll
- %TEMP%\_mei00000de02\numpy-2.2.6.dist-info\installer
- %TEMP%\_mei00000de02\numpy-2.2.6.dist-info\license.txt
- %TEMP%\_mei00000de02\numpy-2.2.6.dist-info\metadata
- %TEMP%\_mei00000de02\numpy-2.2.6.dist-info\record
- %TEMP%\_mei00000de02\numpy-2.2.6.dist-info\wheel
- %TEMP%\_mei00000de02\numpy-2.2.6.dist-info\entry_points.txt
- %TEMP%\_mei00000de02\numpy\_core\_multiarray_tests.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\numpy\_core\_multiarray_umath.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\numpy\fft\_pocketfft_umath.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\numpy\linalg\_umath_linalg.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\numpy\random\_bounded_integers.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\numpy\random\_common.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\numpy\random\_generator.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\numpy\random\_mt19937.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\numpy\random\_pcg64.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\numpy\random\_philox.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\numpy\random\_sfc64.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\numpy\random\bit_generator.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\numpy\random\mtrand.cp314-win_amd64.pyd
- %TEMP%\_mei00000de02\psutil\_psutil_windows.pyd
- %TEMP%\_mei00000de02\pyexpat.pyd
- %TEMP%\_mei00000de02\python3.dll
- %TEMP%\_mei00000de02\python314.dll
- %TEMP%\_mei00000de02\pywin32_system32\pywintypes314.dll
- %TEMP%\_mei00000de02\select.pyd
- %TEMP%\_mei00000de02\sqlite3.dll
- %TEMP%\_mei00000de02\ucrtbase.dll
- %TEMP%\_mei00000de02\unicodedata.pyd
- %TEMP%\_mei00000de02\win32\win32pdh.pyd
- %TEMP%\_mei00000de02\yaml\_yaml.cp314-win_amd64.pyd
- <Current directory>\.ratsetup
Sets the 'hidden' attribute to the following files
- <Full path to file>
- %APPDATA%\microsoft\windows\start menu\programs\startup\runtimebroker.exe
Network activity
Connects to
- 'ap#.##legram.org':443
- 'ap#.#pify.org':443
- 'if##nfig.me':443
- 'ic###azip.com':443
TCP
Other
- 'ap#.#pify.org':443
- 'if##nfig.me':443
- 'ic###azip.com':443
UDP
- DNS ASK ap#.##legram.org
- DNS ASK ap#.#pify.org
- DNS ASK if##nfig.me
- DNS ASK ic###azip.com
Miscellaneous
Restarts the analyzed sample
Executes the following
- '<SYSTEM32>\cmd.exe' /c "powershell -NoProfile -ExecutionPolicy Bypass -Command "Set-MpPreference -DisableRealtimeMonitoring $true;Set-MpPreference -DisableBehaviorMonitoring $true;Set-MpPreference -DisableOnAccess...
- '<SYSTEM32>\cmd.exe' /c "powershell -NoProfile -ExecutionPolicy Bypass -Command "Set-MpPreference -DisableTamperProtection $true""
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -NoProfile -ExecutionPolicy Bypass -Command "Set-MpPreference -DisableTamperProtection $true"
- '<SYSTEM32>\cmd.exe' /c "netsh advfirewall set allprofiles state off"
- '<SYSTEM32>\cmd.exe' /c "powershell -NoProfile -ExecutionPolicy Bypass -Command "Set-MpPreference -DisableRealtimeMonitoring $true;Set-MpPreference -DisableBehaviorMonitoring $true;Set-MpPreference -DisableOnAccess...' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "powershell -NoProfile -ExecutionPolicy Bypass -Command "Set-MpPreference -DisableTamperProtection $true""' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "netsh advfirewall set allprofiles state off"' (with hidden window)
