Technical Information
Malicious functions
Executes the following
- '<SYSTEM32>\taskkill.exe' /F /IM chrome.exe /FI "SERVICES eq network.mojom.NetworkService"
- '<SYSTEM32>\taskkill.exe' /F /IM msedge.exe /FI "SERVICES eq network.mojom.NetworkService"
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\cmd.exe
Modifies file system
Creates the following files
- %TEMP%\_mei42282\vcruntime140.dll
- %TEMP%\_mei42282\_bz2.pyd
- %TEMP%\_mei42282\_decimal.pyd
- %TEMP%\_mei42282\_hashlib.pyd
- %TEMP%\_mei42282\_lzma.pyd
- %TEMP%\_mei42282\_socket.pyd
- %TEMP%\_mei42282\api-ms-win-core-console-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-datetime-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-debug-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-errorhandling-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-fibers-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-file-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-file-l1-2-0.dll
- %TEMP%\_mei42282\api-ms-win-core-file-l2-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-handle-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-heap-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-interlocked-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-libraryloader-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-localization-l1-2-0.dll
- %TEMP%\_mei42282\api-ms-win-core-memory-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-namedpipe-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-processenvironment-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-processthreads-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-processthreads-l1-1-1.dll
- %TEMP%\_mei42282\api-ms-win-core-profile-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-rtlsupport-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-string-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-synch-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-synch-l1-2-0.dll
- %TEMP%\_mei42282\api-ms-win-core-sysinfo-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-timezone-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-util-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-conio-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-convert-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-environment-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-filesystem-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-heap-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-locale-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-math-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-process-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-runtime-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-stdio-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-string-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-time-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-utility-l1-1-0.dll
- %TEMP%\_mei42282\base_library.zip
- %TEMP%\_mei42282\libcrypto-3.dll
- %TEMP%\_mei42282\python312.dll
- %TEMP%\_mei42282\select.pyd
- %TEMP%\_mei42282\ucrtbase.dll
- %TEMP%\_mei42282\unicodedata.pyd
- %TEMP%\lmpr_t12
- %TEMP%\s31334.exe
- %TEMP%\_mei16762\crypto\cipher\_arc4.pyd
- %TEMP%\_mei16762\crypto\cipher\_salsa20.pyd
- %TEMP%\_mei16762\crypto\cipher\_chacha20.pyd
- %TEMP%\_mei16762\crypto\cipher\_pkcs1_decode.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_aes.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_aesni.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_arc2.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_blowfish.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_cast.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_cbc.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_cfb.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_ctr.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_des.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_des3.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_ecb.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_eksblowfish.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_ocb.pyd
- %TEMP%\_mei16762\crypto\cipher\_raw_ofb.pyd
- %TEMP%\_mei16762\crypto\hash\_blake2b.pyd
- %TEMP%\_mei16762\crypto\hash\_blake2s.pyd
- %TEMP%\_mei16762\crypto\hash\_md2.pyd
- %TEMP%\_mei16762\crypto\hash\_md4.pyd
- %TEMP%\_mei16762\crypto\hash\_md5.pyd
- %TEMP%\_mei16762\crypto\hash\_ripemd160.pyd
- %TEMP%\_mei16762\crypto\hash\_sha1.pyd
- %TEMP%\_mei16762\crypto\hash\_sha224.pyd
- %TEMP%\_mei16762\crypto\hash\_sha256.pyd
- %TEMP%\_mei16762\crypto\hash\_sha384.pyd
- %TEMP%\_mei16762\crypto\hash\_sha512.pyd
- %TEMP%\_mei16762\crypto\hash\_ghash_clmul.pyd
- %TEMP%\_mei16762\crypto\hash\_ghash_portable.pyd
- %TEMP%\_mei16762\crypto\hash\_keccak.pyd
- %TEMP%\_mei16762\crypto\hash\_poly1305.pyd
- %TEMP%\_mei16762\crypto\math\_modexp.pyd
- %TEMP%\_mei16762\crypto\protocol\_scrypt.pyd
- %TEMP%\_mei16762\crypto\publickey\_curve25519.pyd
- %TEMP%\_mei16762\crypto\publickey\_curve448.pyd
- %TEMP%\_mei16762\crypto\publickey\_ec_ws.pyd
- %TEMP%\_mei16762\crypto\publickey\_ed25519.pyd
- %TEMP%\_mei16762\crypto\publickey\_ed448.pyd
- %TEMP%\_mei16762\crypto\util\_cpuid_c.pyd
- %TEMP%\_mei16762\crypto\util\_strxor.pyd
- %TEMP%\_mei16762\vcruntime140.dll
- %TEMP%\_mei16762\vcruntime140_1.dll
- %TEMP%\_mei16762\_asyncio.pyd
- %TEMP%\_mei16762\_bz2.pyd
- %TEMP%\_mei16762\_cffi_backend.cp312-win_amd64.pyd
- %TEMP%\_mei16762\_ctypes.pyd
- %TEMP%\_mei16762\_decimal.pyd
- %TEMP%\_mei16762\_hashlib.pyd
- %TEMP%\_mei16762\_lzma.pyd
- %TEMP%\_mei16762\_multiprocessing.pyd
- %TEMP%\_mei16762\_overlapped.pyd
- %TEMP%\_mei16762\_queue.pyd
- %TEMP%\_mei16762\_socket.pyd
- %TEMP%\_mei16762\_sqlite3.pyd
- %TEMP%\_mei16762\_ssl.pyd
- %TEMP%\_mei16762\_wmi.pyd
- %TEMP%\_mei16762\api-ms-win-core-console-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-datetime-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-debug-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-errorhandling-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-fibers-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-file-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-file-l1-2-0.dll
- %TEMP%\_mei16762\api-ms-win-core-file-l2-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-handle-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-heap-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-interlocked-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-libraryloader-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-localization-l1-2-0.dll
- %TEMP%\_mei16762\api-ms-win-core-memory-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-namedpipe-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-processenvironment-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-processthreads-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-processthreads-l1-1-1.dll
- %TEMP%\_mei16762\api-ms-win-core-profile-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-rtlsupport-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-string-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-synch-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-synch-l1-2-0.dll
- %TEMP%\_mei16762\api-ms-win-core-sysinfo-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-timezone-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-core-util-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-conio-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-convert-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-environment-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-filesystem-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-heap-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-locale-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-math-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-process-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-runtime-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-stdio-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-string-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-time-l1-1-0.dll
- %TEMP%\_mei16762\api-ms-win-crt-utility-l1-1-0.dll
- %TEMP%\_mei16762\base_library.zip
- %TEMP%\_mei16762\certifi\cacert.pem
- %TEMP%\_mei16762\charset_normalizer\md.cp312-win_amd64.pyd
- %TEMP%\_mei16762\charset_normalizer\md__mypyc.cp312-win_amd64.pyd
- %TEMP%\_mei16762\cryptography-41.0.7.dist-info\installer
- %TEMP%\_mei16762\cryptography-41.0.7.dist-info\license
- %TEMP%\_mei16762\cryptography-41.0.7.dist-info\license.apache
- %TEMP%\_mei16762\cryptography-41.0.7.dist-info\license.bsd
- %TEMP%\_mei16762\cryptography-41.0.7.dist-info\metadata
- %TEMP%\_mei16762\cryptography-41.0.7.dist-info\record
- %TEMP%\_mei16762\cryptography-41.0.7.dist-info\wheel
- %TEMP%\_mei16762\cryptography-41.0.7.dist-info\top_level.txt
- %TEMP%\_mei16762\cryptography\hazmat\bindings\_rust.pyd
- %TEMP%\_mei16762\libcrypto-3.dll
- %TEMP%\_mei16762\libffi-8.dll
- %TEMP%\_mei16762\libssl-3.dll
- %TEMP%\_mei16762\psutil\_psutil_windows.pyd
- %TEMP%\_mei16762\pyexpat.pyd
- %TEMP%\_mei16762\python3.dll
- %TEMP%\_mei16762\python312.dll
- %TEMP%\_mei16762\pywin32_system32\pywintypes312.dll
- %TEMP%\_mei16762\select.pyd
- %TEMP%\_mei16762\setuptools\_vendor\importlib_metadata-8.0.0.dist-info\installer
- %TEMP%\_mei16762\setuptools\_vendor\importlib_metadata-8.0.0.dist-info\license
- %TEMP%\_mei16762\setuptools\_vendor\importlib_metadata-8.0.0.dist-info\metadata
- %TEMP%\_mei16762\setuptools\_vendor\importlib_metadata-8.0.0.dist-info\record
- %TEMP%\_mei16762\setuptools\_vendor\importlib_metadata-8.0.0.dist-info\wheel
- %TEMP%\_mei16762\setuptools\_vendor\importlib_metadata-8.0.0.dist-info\top_level.txt
- %TEMP%\_mei16762\setuptools\_vendor\jaraco\text\lorem ipsum.txt
- %TEMP%\_mei16762\sqlite3.dll
- %TEMP%\_mei16762\ucrtbase.dll
- %TEMP%\_mei16762\unicodedata.pyd
- %TEMP%\_mei16762\win32\win32crypt.pyd
- %TEMP%\522yhbno
- %TEMP%\pwd_85624.db
Deletes following files that it created itself
- %TEMP%\lmpr_t12
- %TEMP%\_mei42282\api-ms-win-core-console-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-datetime-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-debug-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-errorhandling-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-fibers-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-file-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-file-l1-2-0.dll
- %TEMP%\_mei42282\api-ms-win-core-file-l2-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-handle-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-heap-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-interlocked-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-libraryloader-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-localization-l1-2-0.dll
- %TEMP%\_mei42282\api-ms-win-core-memory-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-namedpipe-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-processenvironment-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-processthreads-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-processthreads-l1-1-1.dll
- %TEMP%\_mei42282\api-ms-win-core-profile-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-rtlsupport-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-string-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-synch-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-synch-l1-2-0.dll
- %TEMP%\_mei42282\api-ms-win-core-sysinfo-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-timezone-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-core-util-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-conio-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-convert-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-environment-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-filesystem-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-heap-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-locale-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-math-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-process-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-runtime-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-stdio-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-string-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-time-l1-1-0.dll
- %TEMP%\_mei42282\api-ms-win-crt-utility-l1-1-0.dll
- %TEMP%\_mei42282\base_library.zip
- %TEMP%\_mei42282\libcrypto-3.dll
- %TEMP%\_mei42282\python312.dll
- %TEMP%\_mei42282\select.pyd
- %TEMP%\_mei42282\ucrtbase.dll
- %TEMP%\_mei42282\unicodedata.pyd
- %TEMP%\_mei42282\vcruntime140.dll
- %TEMP%\_mei42282\_bz2.pyd
- %TEMP%\_mei42282\_decimal.pyd
- %TEMP%\_mei42282\_hashlib.pyd
- %TEMP%\_mei42282\_lzma.pyd
- %TEMP%\_mei42282\_socket.pyd
- %TEMP%\522yhbno
- %TEMP%\pwd_85624.db
Network activity
Connects to
- '94.##3.177.96':5000
UDP
- DNS ASK if##nfig.me
Miscellaneous
Searches for the following windows
- ClassName: '' WindowName: ''
Creates and executes the following
- '%TEMP%\s31334.exe'
Restarts the analyzed sample
Executes the following
- '<SYSTEM32>\cmd.exe' /c "%TEMP%\s31334.exe"
- '<SYSTEM32>\cmd.exe' /c "wmic csproduct get uuid"
- '<SYSTEM32>\wbem\wmic.exe' csproduct get uuid
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /IM chrome.exe /FI "SERVICES eq network.mojom.NetworkService""
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /IM msedge.exe /FI "SERVICES eq network.mojom.NetworkService""
- '<SYSTEM32>\cmd.exe' /c "curl -s ifconfig.me"
- '<SYSTEM32>\curl.exe' -s ifconfig.me
- '<SYSTEM32>\cmd.exe' /c "%TEMP%\s31334.exe"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "wmic csproduct get uuid"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /IM chrome.exe /FI "SERVICES eq network.mojom.NetworkService""' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /IM msedge.exe /FI "SERVICES eq network.mojom.NetworkService""' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "curl -s ifconfig.me"' (with hidden window)
