Technical Information
Malicious functions
Creates and executes the following
- '' (downloaded from the Internet)
Modifies file system
Creates the following files
- <SYSTEM32>\cst.exe
- %TEMP%\_mei27642\api-ms-win-crt-heap-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-crt-filesystem-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-crt-environment-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-crt-convert-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-crt-conio-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-util-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-timezone-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-sysinfo-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-synch-l1-2-0.dll
- %TEMP%\_mei27642\api-ms-win-core-synch-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-string-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-rtlsupport-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-crt-locale-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-profile-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-processthreads-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-processenvironment-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-namedpipe-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-memory-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-localization-l1-2-0.dll
- %TEMP%\_mei27642\api-ms-win-core-libraryloader-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-interlocked-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-heap-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-handle-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-file-l2-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-file-l1-2-0.dll
- %TEMP%\_mei27642\api-ms-win-core-file-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-processthreads-l1-1-1.dll
- %TEMP%\_mei27642\api-ms-win-crt-math-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-crt-process-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-crt-runtime-l1-1-0.dll
- %TEMP%\_mei27642\ucrtbase.dll
- %TEMP%\_mei27642\sqlite3.dll
- %TEMP%\_mei27642\select.pyd
- %TEMP%\_mei27642\pywin32_system32\pywintypes312.dll
- %TEMP%\_mei27642\python312.dll
- %TEMP%\_mei27642\python3.dll
- %TEMP%\_mei27642\pyexpat.pyd
- %TEMP%\_mei27642\libssl-3.dll
- %TEMP%\_mei27642\libffi-8.dll
- %TEMP%\_mei27642\libcrypto-3.dll
- %TEMP%\_mei27642\cryptography\hazmat\bindings\_rust.pyd
- %TEMP%\_mei27642\cryptography-42.0.5.dist-info\top_level.txt
- %TEMP%\_mei27642\cryptography-42.0.5.dist-info\wheel
- %TEMP%\_mei27642\cryptography-42.0.5.dist-info\record
- %TEMP%\_mei27642\cryptography-42.0.5.dist-info\metadata
- %TEMP%\_mei27642\cryptography-42.0.5.dist-info\license.bsd
- %TEMP%\_mei27642\cryptography-42.0.5.dist-info\license.apache
- %TEMP%\_mei27642\cryptography-42.0.5.dist-info\license
- %TEMP%\_mei27642\cryptography-42.0.5.dist-info\installer
- %TEMP%\_mei27642\charset_normalizer\md__mypyc.cp312-win_amd64.pyd
- %TEMP%\_mei27642\charset_normalizer\md.cp312-win_amd64.pyd
- %TEMP%\_mei27642\certifi\cacert.pem
- %TEMP%\_mei27642\base_library.zip
- %TEMP%\_mei27642\api-ms-win-crt-utility-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-crt-time-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-crt-string-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-crt-stdio-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-errorhandling-l1-1-0.dll
- %TEMP%\_mei27642\unicodedata.pyd
- %TEMP%\_mei27642\api-ms-win-core-debug-l1-1-0.dll
- %TEMP%\_mei27642\api-ms-win-core-console-l1-1-0.dll
- %TEMP%\_mei27642\crypto\hash\_sha224.pyd
- %TEMP%\_mei27642\crypto\hash\_sha1.pyd
- %TEMP%\_mei27642\crypto\hash\_ripemd160.pyd
- %TEMP%\_mei27642\crypto\hash\_md5.pyd
- %TEMP%\_mei27642\crypto\hash\_md4.pyd
- %TEMP%\_mei27642\crypto\hash\_md2.pyd
- %TEMP%\_mei27642\crypto\hash\_blake2s.pyd
- %TEMP%\_mei27642\crypto\hash\_blake2b.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_ofb.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_ocb.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_eksblowfish.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_ecb.pyd
- %TEMP%\_mei27642\crypto\hash\_sha256.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_des3.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_ctr.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_cfb.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_cbc.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_cast.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_blowfish.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_arc2.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_aesni.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_aes.pyd
- %TEMP%\_mei27642\crypto\cipher\_pkcs1_decode.pyd
- %TEMP%\_mei27642\crypto\cipher\_chacha20.pyd
- %TEMP%\_mei27642\crypto\cipher\_salsa20.pyd
- %TEMP%\_mei27642\crypto\cipher\_arc4.pyd
- %TEMP%\_mei27642\crypto\cipher\_raw_des.pyd
- %TEMP%\_mei27642\crypto\hash\_sha384.pyd
- %TEMP%\_mei27642\crypto\hash\_sha512.pyd
- %TEMP%\_mei27642\crypto\hash\_ghash_clmul.pyd
- %TEMP%\_mei27642\_wmi.pyd
- %TEMP%\_mei27642\_ssl.pyd
- %TEMP%\_mei27642\_sqlite3.pyd
- %TEMP%\_mei27642\_socket.pyd
- %TEMP%\_mei27642\_queue.pyd
- %TEMP%\_mei27642\_overlapped.pyd
- %TEMP%\_mei27642\_multiprocessing.pyd
- %TEMP%\_mei27642\_lzma.pyd
- %TEMP%\_mei27642\_hashlib.pyd
- %TEMP%\_mei27642\_decimal.pyd
- %TEMP%\_mei27642\_ctypes.pyd
- %TEMP%\_mei27642\_cffi_backend.cp312-win_amd64.pyd
- %TEMP%\_mei27642\_bz2.pyd
- %TEMP%\_mei27642\_asyncio.pyd
- %TEMP%\_mei27642\vcruntime140_1.dll
- %TEMP%\_mei27642\vcruntime140.dll
- %TEMP%\_mei27642\crypto\util\_strxor.pyd
- %TEMP%\_mei27642\crypto\util\_cpuid_c.pyd
- %TEMP%\_mei27642\crypto\publickey\_x25519.pyd
- %TEMP%\_mei27642\crypto\publickey\_ed448.pyd
- %TEMP%\_mei27642\crypto\publickey\_ed25519.pyd
- %TEMP%\_mei27642\crypto\publickey\_ec_ws.pyd
- %TEMP%\_mei27642\crypto\protocol\_scrypt.pyd
- %TEMP%\_mei27642\crypto\math\_modexp.pyd
- %TEMP%\_mei27642\crypto\hash\_poly1305.pyd
- %TEMP%\_mei27642\crypto\hash\_keccak.pyd
- %TEMP%\_mei27642\crypto\hash\_ghash_portable.pyd
- %TEMP%\_mei27642\api-ms-win-core-datetime-l1-1-0.dll
- %TEMP%\_mei27642\win32\win32api.pyd
Network activity
Connects to
- '14#.#0.240.224':80
TCP
HTTP GET requests
- http://14#.#0.240.224/cst.exe
Miscellaneous
Creates and executes the following
- '<SYSTEM32>\cst.exe'
