Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'WindowsUpdateService' = '%APPDATA%\Microsoft\Windows\UpdateService\WindowsUpdateService.exe'
Malicious functions
Terminates or attempts to terminate
the following user processes:
- firefox.exe
Modifies file system
Creates the following files
- %TEMP%\_mei32762\crypto\cipher\aes.py
- %TEMP%\_mei32762\crypto\cipher\aes.pyi
- %TEMP%\_mei32762\crypto\cipher\arc2.py
- %TEMP%\_mei32762\crypto\cipher\arc2.pyi
- %TEMP%\_mei32762\crypto\cipher\arc4.py
- %TEMP%\_mei32762\crypto\cipher\arc4.pyi
- %TEMP%\_mei32762\crypto\cipher\blowfish.py
- %TEMP%\_mei32762\crypto\cipher\blowfish.pyi
- %TEMP%\_mei32762\crypto\cipher\cast.py
- %TEMP%\_mei32762\crypto\cipher\cast.pyi
- %TEMP%\_mei32762\crypto\cipher\chacha20.py
- %TEMP%\_mei32762\crypto\cipher\chacha20.pyi
- %TEMP%\_mei32762\crypto\cipher\chacha20_poly1305.py
- %TEMP%\_mei32762\crypto\cipher\chacha20_poly1305.pyi
- %TEMP%\_mei32762\crypto\cipher\des.py
- %TEMP%\_mei32762\crypto\cipher\des.pyi
- %TEMP%\_mei32762\crypto\cipher\des3.py
- %TEMP%\_mei32762\crypto\cipher\des3.pyi
- %TEMP%\_mei32762\crypto\cipher\pkcs1_oaep.py
- %TEMP%\_mei32762\crypto\cipher\pkcs1_oaep.pyi
- %TEMP%\_mei32762\crypto\cipher\pkcs1_v1_5.py
- %TEMP%\_mei32762\crypto\cipher\pkcs1_v1_5.pyi
- %TEMP%\_mei32762\crypto\cipher\salsa20.py
- %TEMP%\_mei32762\crypto\cipher\salsa20.pyi
- %TEMP%\_mei32762\crypto\cipher\_arc4.pyd
- %TEMP%\_mei32762\crypto\cipher\_eksblowfish.py
- %TEMP%\_mei32762\crypto\cipher\_eksblowfish.pyi
- %TEMP%\_mei32762\crypto\cipher\_salsa20.pyd
- %TEMP%\_mei32762\crypto\cipher\__init__.py
- %TEMP%\_mei32762\crypto\cipher\_chacha20.pyd
- %TEMP%\_mei32762\crypto\cipher\_mode_cbc.py
- %TEMP%\_mei32762\crypto\cipher\_mode_cbc.pyi
- %TEMP%\_mei32762\crypto\cipher\_mode_ccm.py
- %TEMP%\_mei32762\crypto\cipher\_mode_ccm.pyi
- %TEMP%\_mei32762\crypto\cipher\_mode_cfb.py
- %TEMP%\_mei32762\crypto\cipher\_mode_cfb.pyi
- %TEMP%\_mei32762\crypto\cipher\_mode_ctr.py
- %TEMP%\_mei32762\crypto\cipher\_mode_ctr.pyi
- %TEMP%\_mei32762\crypto\cipher\_mode_eax.py
- %TEMP%\_mei32762\crypto\cipher\_mode_eax.pyi
- %TEMP%\_mei32762\crypto\cipher\_mode_ecb.py
- %TEMP%\_mei32762\crypto\cipher\_mode_ecb.pyi
- %TEMP%\_mei32762\crypto\cipher\_mode_gcm.py
- %TEMP%\_mei32762\crypto\cipher\_mode_gcm.pyi
- %TEMP%\_mei32762\crypto\cipher\_mode_kw.py
- %TEMP%\_mei32762\crypto\cipher\_mode_kwp.py
- %TEMP%\_mei32762\crypto\cipher\_mode_ocb.py
- %TEMP%\_mei32762\crypto\cipher\_mode_ocb.pyi
- %TEMP%\_mei32762\crypto\cipher\_mode_ofb.py
- %TEMP%\_mei32762\crypto\cipher\_mode_ofb.pyi
- %TEMP%\_mei32762\crypto\cipher\_mode_openpgp.py
- %TEMP%\_mei32762\crypto\cipher\_mode_openpgp.pyi
- %TEMP%\_mei32762\crypto\cipher\_mode_siv.py
- %TEMP%\_mei32762\crypto\cipher\_mode_siv.pyi
- %TEMP%\_mei32762\crypto\cipher\_pkcs1_decode.pyd
- %TEMP%\_mei32762\crypto\cipher\_pkcs1_oaep_decode.py
- %TEMP%\_mei32762\crypto\cipher\_raw_aes.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_aesni.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_arc2.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_blowfish.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_cast.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_cbc.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_cfb.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_ctr.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_des.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_des3.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_ecb.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_eksblowfish.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_ocb.pyd
- %TEMP%\_mei32762\crypto\cipher\_raw_ofb.pyd
- %TEMP%\_mei32762\crypto\hash\_blake2b.pyd
- %TEMP%\_mei32762\crypto\hash\_blake2s.pyd
- %TEMP%\_mei32762\crypto\hash\_md2.pyd
- %TEMP%\_mei32762\crypto\hash\_md4.pyd
- %TEMP%\_mei32762\crypto\hash\_md5.pyd
- %TEMP%\_mei32762\crypto\hash\_ripemd160.pyd
- %TEMP%\_mei32762\crypto\hash\_sha1.pyd
- %TEMP%\_mei32762\crypto\hash\_sha224.pyd
- %TEMP%\_mei32762\crypto\hash\_sha256.pyd
- %TEMP%\_mei32762\crypto\hash\_sha384.pyd
- %TEMP%\_mei32762\crypto\hash\_sha512.pyd
- %TEMP%\_mei32762\crypto\hash\_ghash_clmul.pyd
- %TEMP%\_mei32762\crypto\hash\_ghash_portable.pyd
- %TEMP%\_mei32762\crypto\hash\_keccak.pyd
- %TEMP%\_mei32762\crypto\hash\_poly1305.pyd
- %TEMP%\_mei32762\crypto\math\_modexp.pyd
- %TEMP%\_mei32762\crypto\protocol\_scrypt.pyd
- %TEMP%\_mei32762\crypto\publickey\_curve25519.pyd
- %TEMP%\_mei32762\crypto\publickey\_curve448.pyd
- %TEMP%\_mei32762\crypto\publickey\_ec_ws.pyd
- %TEMP%\_mei32762\crypto\publickey\_ed25519.pyd
- %TEMP%\_mei32762\crypto\publickey\_ed448.pyd
- %TEMP%\_mei32762\crypto\util\_cpuid_c.pyd
- %TEMP%\_mei32762\crypto\util\_strxor.pyd
- %TEMP%\_mei32762\vcruntime140.dll
- %TEMP%\_mei32762\vcruntime140_1.dll
- %TEMP%\_mei32762\_asyncio.pyd
- %TEMP%\_mei32762\_bz2.pyd
- %TEMP%\_mei32762\_cffi_backend.cp314-win_amd64.pyd
- %TEMP%\_mei32762\_ctypes.pyd
- %TEMP%\_mei32762\_decimal.pyd
- %TEMP%\_mei32762\_hashlib.pyd
- %TEMP%\_mei32762\_lzma.pyd
- %TEMP%\_mei32762\_multiprocessing.pyd
- %TEMP%\_mei32762\_overlapped.pyd
- %TEMP%\_mei32762\_queue.pyd
- %TEMP%\_mei32762\_socket.pyd
- %TEMP%\_mei32762\_sqlite3.pyd
- %TEMP%\_mei32762\_ssl.pyd
- %TEMP%\_mei32762\_uuid.pyd
- %TEMP%\_mei32762\_wmi.pyd
- %TEMP%\_mei32762\_zstd.pyd
- %TEMP%\_mei32762\base_library.zip
- %TEMP%\_mei32762\certifi\cacert.pem
- %TEMP%\_mei32762\charset_normalizer\md.cp314-win_amd64.pyd
- %TEMP%\_mei32762\charset_normalizer\md__mypyc.cp314-win_amd64.pyd
- %TEMP%\_mei32762\libcrypto-3.dll
- %TEMP%\_mei32762\libffi-8.dll
- %TEMP%\_mei32762\libssl-3.dll
- %TEMP%\_mei32762\psutil\_psutil_windows.pyd
- %TEMP%\_mei32762\pyexpat.pyd
- %TEMP%\_mei32762\python3.dll
- %TEMP%\_mei32762\python314.dll
- %TEMP%\_mei32762\pywin32_system32\pywintypes314.dll
- %TEMP%\_mei32762\select.pyd
- %TEMP%\_mei32762\setuptools\_vendor\importlib_metadata-8.7.1.dist-info\installer
- %TEMP%\_mei32762\setuptools\_vendor\importlib_metadata-8.7.1.dist-info\metadata
- %TEMP%\_mei32762\setuptools\_vendor\importlib_metadata-8.7.1.dist-info\record
- %TEMP%\_mei32762\setuptools\_vendor\importlib_metadata-8.7.1.dist-info\wheel
- %TEMP%\_mei32762\setuptools\_vendor\importlib_metadata-8.7.1.dist-info\licenses\license
- %TEMP%\_mei32762\setuptools\_vendor\importlib_metadata-8.7.1.dist-info\top_level.txt
- %TEMP%\_mei32762\setuptools\_vendor\jaraco\text\lorem ipsum.txt
- %TEMP%\_mei32762\sqlite3.dll
- %TEMP%\_mei32762\unicodedata.pyd
- %TEMP%\_mei32762\win32\_win32sysloader.pyd
- %TEMP%\_mei32762\win32\win32api.pyd
- %TEMP%\_mei32762\win32\win32clipboard.pyd
- %TEMP%\_mei32762\win32\win32crypt.pyd
- %TEMP%\_mei32762\win32\win32file.pyd
- %TEMP%\e5id5zwf
- %APPDATA%\microsoft\windows\updateservice\windowsupdateservice.exe
Deletes following files that it created itself
- %TEMP%\e5id5zwf
Network activity
Connects to
- 'ap#.##legram.org':443
- 'ap#.#pify.org':443
TCP
Other
- 'ap#.#pify.org':443
UDP
- DNS ASK ap#.##legram.org
- DNS ASK ap#.#pify.org
Miscellaneous
Restarts the analyzed sample
