Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'WindowsSystemUpdate' = '%APPDATA%\Microsoft\Windows\UpdateService\winupdate.exe'
Modifies file system
Creates the following files
- %TEMP%\_mei51042\cryptodome\cipher\_arc4.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_salsa20.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_chacha20.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_pkcs1_decode.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_aes.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_aesni.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_arc2.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_blowfish.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_cast.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_cbc.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_cfb.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_ctr.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_des.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_des3.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_ecb.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_eksblowfish.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_ocb.pyd
- %TEMP%\_mei51042\cryptodome\cipher\_raw_ofb.pyd
- %TEMP%\_mei51042\cryptodome\hash\_blake2b.pyd
- %TEMP%\_mei51042\cryptodome\hash\_blake2s.pyd
- %TEMP%\_mei51042\cryptodome\hash\_md2.pyd
- %TEMP%\_mei51042\cryptodome\hash\_md4.pyd
- %TEMP%\_mei51042\cryptodome\hash\_md5.pyd
- %TEMP%\_mei51042\cryptodome\hash\_ripemd160.pyd
- %TEMP%\_mei51042\cryptodome\hash\_sha1.pyd
- %TEMP%\_mei51042\cryptodome\hash\_sha224.pyd
- %TEMP%\_mei51042\cryptodome\hash\_sha256.pyd
- %TEMP%\_mei51042\cryptodome\hash\_sha384.pyd
- %TEMP%\_mei51042\cryptodome\hash\_sha512.pyd
- %TEMP%\_mei51042\cryptodome\hash\_ghash_clmul.pyd
- %TEMP%\_mei51042\cryptodome\hash\_ghash_portable.pyd
- %TEMP%\_mei51042\cryptodome\hash\_keccak.pyd
- %TEMP%\_mei51042\cryptodome\hash\_poly1305.pyd
- %TEMP%\_mei51042\cryptodome\math\_modexp.pyd
- %TEMP%\_mei51042\cryptodome\protocol\_scrypt.pyd
- %TEMP%\_mei51042\cryptodome\publickey\_curve25519.pyd
- %TEMP%\_mei51042\cryptodome\publickey\_curve448.pyd
- %TEMP%\_mei51042\cryptodome\publickey\_ec_ws.pyd
- %TEMP%\_mei51042\cryptodome\publickey\_ed25519.pyd
- %TEMP%\_mei51042\cryptodome\publickey\_ed448.pyd
- %TEMP%\_mei51042\cryptodome\util\_cpuid_c.pyd
- %TEMP%\_mei51042\cryptodome\util\_strxor.pyd
- %TEMP%\_mei51042\pil\_avif.cp312-win_amd64.pyd
- %TEMP%\_mei51042\pil\_imaging.cp312-win_amd64.pyd
- %TEMP%\_mei51042\pil\_imagingcms.cp312-win_amd64.pyd
- %TEMP%\_mei51042\pil\_imagingmath.cp312-win_amd64.pyd
- %TEMP%\_mei51042\pil\_imagingtk.cp312-win_amd64.pyd
- %TEMP%\_mei51042\pil\_webp.cp312-win_amd64.pyd
- %TEMP%\_mei51042\pythonwin\mfc140u.dll
- %TEMP%\_mei51042\pythonwin\win32ui.pyd
- %TEMP%\_mei51042\vcruntime140.dll
- %TEMP%\_mei51042\vcruntime140_1.dll
- %TEMP%\_mei51042\_asyncio.pyd
- %TEMP%\_mei51042\_bz2.pyd
- %TEMP%\_mei51042\_ctypes.pyd
- %TEMP%\_mei51042\_decimal.pyd
- %TEMP%\_mei51042\_elementtree.pyd
- %TEMP%\_mei51042\_hashlib.pyd
- %TEMP%\_mei51042\_lzma.pyd
- %TEMP%\_mei51042\_multiprocessing.pyd
- %TEMP%\_mei51042\_overlapped.pyd
- %TEMP%\_mei51042\_queue.pyd
- %TEMP%\_mei51042\_socket.pyd
- %TEMP%\_mei51042\_sqlite3.pyd
- %TEMP%\_mei51042\_ssl.pyd
- %TEMP%\_mei51042\_uuid.pyd
- %TEMP%\_mei51042\_wmi.pyd
- %TEMP%\_mei51042\api-ms-win-core-console-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-datetime-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-debug-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-errorhandling-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-fibers-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-fibers-l1-1-1.dll
- %TEMP%\_mei51042\api-ms-win-core-file-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-file-l1-2-0.dll
- %TEMP%\_mei51042\api-ms-win-core-file-l2-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-handle-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-heap-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-interlocked-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-kernel32-legacy-l1-1-1.dll
- %TEMP%\_mei51042\api-ms-win-core-libraryloader-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-localization-l1-2-0.dll
- %TEMP%\_mei51042\api-ms-win-core-memory-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-namedpipe-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-processenvironment-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-processthreads-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-processthreads-l1-1-1.dll
- %TEMP%\_mei51042\api-ms-win-core-profile-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-rtlsupport-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-string-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-synch-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-synch-l1-2-0.dll
- %TEMP%\_mei51042\api-ms-win-core-sysinfo-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-sysinfo-l1-2-0.dll
- %TEMP%\_mei51042\api-ms-win-core-timezone-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-core-util-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-conio-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-convert-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-environment-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-filesystem-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-heap-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-locale-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-math-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-multibyte-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-process-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-runtime-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-stdio-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-string-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-time-l1-1-0.dll
- %TEMP%\_mei51042\api-ms-win-crt-utility-l1-1-0.dll
- %TEMP%\_mei51042\base_library.zip
- %TEMP%\_mei51042\certifi\cacert.pem
- %TEMP%\_mei51042\charset_normalizer\md.cp312-win_amd64.pyd
- %TEMP%\_mei51042\charset_normalizer\md__mypyc.cp312-win_amd64.pyd
- %TEMP%\_mei51042\libcrypto-3.dll
- %TEMP%\_mei51042\libffi-8.dll
- %TEMP%\_mei51042\libssl-3.dll
- %TEMP%\_mei51042\lz4-4.4.4.dist-info\installer
- %TEMP%\_mei51042\lz4-4.4.4.dist-info\metadata
- %TEMP%\_mei51042\lz4-4.4.4.dist-info\record
- %TEMP%\_mei51042\lz4-4.4.4.dist-info\wheel
- %TEMP%\_mei51042\lz4-4.4.4.dist-info\licenses\license
- %TEMP%\_mei51042\lz4-4.4.4.dist-info\top_level.txt
- %TEMP%\_mei51042\lz4\_version.cp312-win_amd64.pyd
- %TEMP%\_mei51042\lz4\block\_block.cp312-win_amd64.pyd
- %TEMP%\_mei51042\psutil\_psutil_windows.pyd
- %TEMP%\_mei51042\pyexpat.pyd
- %TEMP%\_mei51042\python3.dll
- %TEMP%\_mei51042\python312.dll
- %TEMP%\_mei51042\pywin32_system32\pythoncom312.dll
- %TEMP%\_mei51042\pywin32_system32\pywintypes312.dll
- %TEMP%\_mei51042\select.pyd
- %TEMP%\_mei51042\sqlite3.dll
- %TEMP%\_mei51042\ucrtbase.dll
- %TEMP%\_mei51042\unicodedata.pyd
- %TEMP%\_mei51042\win32\_win32sysloader.pyd
- %TEMP%\_mei51042\win32\win32api.pyd
- %TEMP%\_mei51042\win32\win32crypt.pyd
- %TEMP%\_mei51042\win32\win32event.pyd
- %TEMP%\_mei51042\win32\win32gui.pyd
- %TEMP%\_mei51042\win32\win32trace.pyd
- %TEMP%\_mei51042\zstandard\_cffi.cp312-win_amd64.pyd
- %TEMP%\_mei51042\zstandard\backend_c.cp312-win_amd64.pyd
- %TEMP%\gen_py\3.12\__init__.py
- %TEMP%\gen_py\3.12\dicts.dat
- %APPDATA%\microsoft\windows\updateservice\winupdate.exe
- %TEMP%\_mei20162\cryptodome\cipher\_arc4.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_salsa20.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_chacha20.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_pkcs1_decode.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_aes.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_aesni.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_arc2.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_blowfish.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_cast.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_cbc.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_cfb.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_ctr.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_des.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_des3.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_ecb.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_eksblowfish.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_ocb.pyd
- %TEMP%\_mei20162\cryptodome\cipher\_raw_ofb.pyd
- %TEMP%\_mei20162\cryptodome\hash\_blake2b.pyd
- %TEMP%\_mei20162\cryptodome\hash\_blake2s.pyd
- %TEMP%\_mei20162\cryptodome\hash\_md2.pyd
- %TEMP%\_mei20162\cryptodome\hash\_md4.pyd
- %TEMP%\_mei20162\cryptodome\hash\_md5.pyd
- %TEMP%\_mei20162\cryptodome\hash\_ripemd160.pyd
- %TEMP%\_mei20162\cryptodome\hash\_sha1.pyd
- %TEMP%\_mei20162\cryptodome\hash\_sha224.pyd
- %TEMP%\_mei20162\cryptodome\hash\_sha256.pyd
- %TEMP%\_mei20162\cryptodome\hash\_sha384.pyd
- %TEMP%\_mei20162\cryptodome\hash\_sha512.pyd
- %TEMP%\_mei20162\cryptodome\hash\_ghash_clmul.pyd
- %TEMP%\_mei20162\cryptodome\hash\_ghash_portable.pyd
- %TEMP%\_mei20162\cryptodome\hash\_keccak.pyd
- %TEMP%\_mei20162\cryptodome\hash\_poly1305.pyd
- %TEMP%\_mei20162\cryptodome\math\_modexp.pyd
- %TEMP%\_mei20162\cryptodome\protocol\_scrypt.pyd
- %TEMP%\_mei20162\cryptodome\publickey\_curve25519.pyd
- %TEMP%\_mei20162\cryptodome\publickey\_curve448.pyd
- %TEMP%\_mei20162\cryptodome\publickey\_ec_ws.pyd
- %TEMP%\_mei20162\cryptodome\publickey\_ed25519.pyd
- %TEMP%\_mei20162\cryptodome\publickey\_ed448.pyd
- %TEMP%\_mei20162\cryptodome\util\_cpuid_c.pyd
- %TEMP%\_mei20162\cryptodome\util\_strxor.pyd
- %TEMP%\_mei20162\pil\_avif.cp312-win_amd64.pyd
- %TEMP%\_mei20162\pil\_imaging.cp312-win_amd64.pyd
- %TEMP%\_mei20162\pil\_imagingcms.cp312-win_amd64.pyd
- %TEMP%\_mei20162\pil\_imagingmath.cp312-win_amd64.pyd
- %TEMP%\_mei20162\pil\_imagingtk.cp312-win_amd64.pyd
- %TEMP%\_mei20162\pil\_webp.cp312-win_amd64.pyd
- %TEMP%\_mei20162\pythonwin\mfc140u.dll
- %TEMP%\_mei20162\pythonwin\win32ui.pyd
- %TEMP%\_mei20162\vcruntime140.dll
- %TEMP%\_mei20162\vcruntime140_1.dll
- %TEMP%\_mei20162\_asyncio.pyd
- %TEMP%\_mei20162\_bz2.pyd
- %TEMP%\_mei20162\_ctypes.pyd
- %TEMP%\_mei20162\_decimal.pyd
- %TEMP%\_mei20162\_elementtree.pyd
- %TEMP%\_mei20162\_hashlib.pyd
- %TEMP%\_mei20162\_lzma.pyd
- %TEMP%\_mei20162\_multiprocessing.pyd
- %TEMP%\_mei20162\_overlapped.pyd
- %TEMP%\_mei20162\_queue.pyd
- %TEMP%\_mei20162\_socket.pyd
- %TEMP%\_mei20162\_sqlite3.pyd
- %TEMP%\_mei20162\_ssl.pyd
- %TEMP%\_mei20162\_uuid.pyd
- %TEMP%\_mei20162\_wmi.pyd
- %TEMP%\_mei20162\api-ms-win-core-console-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-datetime-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-debug-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-errorhandling-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-fibers-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-fibers-l1-1-1.dll
- %TEMP%\_mei20162\api-ms-win-core-file-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-file-l1-2-0.dll
- %TEMP%\_mei20162\api-ms-win-core-file-l2-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-handle-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-heap-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-interlocked-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-kernel32-legacy-l1-1-1.dll
- %TEMP%\_mei20162\api-ms-win-core-libraryloader-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-localization-l1-2-0.dll
- %TEMP%\_mei20162\api-ms-win-core-memory-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-namedpipe-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-processenvironment-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-processthreads-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-processthreads-l1-1-1.dll
- %TEMP%\_mei20162\api-ms-win-core-profile-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-rtlsupport-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-string-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-synch-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-synch-l1-2-0.dll
- %TEMP%\_mei20162\api-ms-win-core-sysinfo-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-sysinfo-l1-2-0.dll
- %TEMP%\_mei20162\api-ms-win-core-timezone-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-core-util-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-conio-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-convert-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-environment-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-filesystem-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-heap-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-locale-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-math-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-multibyte-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-process-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-runtime-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-stdio-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-string-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-time-l1-1-0.dll
- %TEMP%\_mei20162\api-ms-win-crt-utility-l1-1-0.dll
- %TEMP%\_mei20162\base_library.zip
- %TEMP%\_mei20162\certifi\cacert.pem
- %TEMP%\_mei20162\charset_normalizer\md.cp312-win_amd64.pyd
- %TEMP%\_mei20162\charset_normalizer\md__mypyc.cp312-win_amd64.pyd
- %TEMP%\_mei20162\libcrypto-3.dll
- %TEMP%\_mei20162\libffi-8.dll
- %TEMP%\_mei20162\libssl-3.dll
- %TEMP%\_mei20162\lz4-4.4.4.dist-info\installer
- %TEMP%\_mei20162\lz4-4.4.4.dist-info\metadata
- %TEMP%\_mei20162\lz4-4.4.4.dist-info\record
- %TEMP%\_mei20162\lz4-4.4.4.dist-info\wheel
- %TEMP%\_mei20162\lz4-4.4.4.dist-info\licenses\license
- %TEMP%\_mei20162\lz4-4.4.4.dist-info\top_level.txt
- %TEMP%\_mei20162\lz4\_version.cp312-win_amd64.pyd
- %TEMP%\_mei20162\lz4\block\_block.cp312-win_amd64.pyd
- %TEMP%\_mei20162\psutil\_psutil_windows.pyd
- %TEMP%\_mei20162\pyexpat.pyd
- %TEMP%\_mei20162\python3.dll
- %TEMP%\_mei20162\python312.dll
- %TEMP%\_mei20162\pywin32_system32\pythoncom312.dll
- %TEMP%\_mei20162\pywin32_system32\pywintypes312.dll
- %TEMP%\_mei20162\select.pyd
- %TEMP%\_mei20162\sqlite3.dll
- %TEMP%\_mei20162\ucrtbase.dll
- %TEMP%\_mei20162\unicodedata.pyd
- %TEMP%\_mei20162\win32\_win32sysloader.pyd
- %TEMP%\_mei20162\win32\win32api.pyd
- %TEMP%\_mei20162\win32\win32crypt.pyd
- %TEMP%\_mei20162\win32\win32event.pyd
- %TEMP%\_mei20162\win32\win32gui.pyd
- %TEMP%\_mei20162\win32\win32trace.pyd
- %TEMP%\_mei20162\zstandard\_cffi.cp312-win_amd64.pyd
- %TEMP%\_mei20162\zstandard\backend_c.cp312-win_amd64.pyd
Network activity
Connects to
- 'ap#.#pify.org':443
- 'pa####hxami.shop':443
TCP
Other
- 'ap#.#pify.org':443
UDP
- DNS ASK ap#.#pify.org
- DNS ASK pa####hxami.shop
Miscellaneous
Creates and executes the following
- '%APPDATA%\microsoft\windows\updateservice\winupdate.exe'
Restarts the analyzed sample
Executes the following
- '<SYSTEM32>\cmd.exe' /c "reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WindowsSystemUpdate /t REG_SZ /d "%APPDATA%\Microsoft\Windows\UpdateService\winupdate.exe" /f"
- '<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WindowsSystemUpdate /t REG_SZ /d "%APPDATA%\Microsoft\Windows\UpdateService\winupdate.exe" /f
- '<SYSTEM32>\cmd.exe' /c "reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WindowsSystemUpdate /t REG_SZ /d "%APPDATA%\Microsoft\Windows\UpdateService\winupdate.exe" /f"' (with hidden window)
