Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [\REGISTRY\USER\S-1-5-21-2377844457-1847597103-2569463324-1000\Software\Microsoft\Windows\CurrentVersion\Run] 'empyrean' = '%APPDATA%\empyrean\run.bat'
Modifies file system
Creates the following files
- %TEMP%\_mei9802\crypto\cipher\_arc4.pyd
- %TEMP%\_mei9802\win32crypt.pyd
- %TEMP%\_mei9802\win32com\shell\shell.pyd
- %TEMP%\_mei9802\win32api.pyd
- %TEMP%\_mei9802\unicodedata.pyd
- %TEMP%\_mei9802\sqlite3.dll
- %TEMP%\_mei9802\select.pyd
- %TEMP%\_mei9802\pywintypes310.dll
- %TEMP%\_mei9802\pythoncom310.dll
- %TEMP%\_mei9802\python310.dll
- %TEMP%\_mei9802\python3.dll
- %TEMP%\_mei9802\pyexpat.pyd
- %TEMP%\_mei9802\psutil\_psutil_windows.pyd
- %TEMP%\_mei9802\win32trace.pyd
- %TEMP%\_mei9802\multidict\_multidict.cp310-win_amd64.pyd
- %TEMP%\_mei9802\libssl-1_1.dll
- %TEMP%\_mei9802\libffi-7.dll
- %TEMP%\_mei9802\libcrypto-1_1.dll
- %TEMP%\_mei9802\frozenlist\_frozenlist.cp310-win_amd64.pyd
- %TEMP%\_mei9802\charset_normalizer\md__mypyc.cp310-win_amd64.pyd
- %TEMP%\_mei9802\charset_normalizer\md.cp310-win_amd64.pyd
- %TEMP%\_mei9802\aiohttp\_websocket.cp310-win_amd64.pyd
- %TEMP%\_mei9802\aiohttp\_http_writer.cp310-win_amd64.pyd
- %TEMP%\_mei9802\aiohttp\_http_parser.cp310-win_amd64.pyd
- %TEMP%\_mei9802\aiohttp\_helpers.cp310-win_amd64.pyd
- %TEMP%\_mei9802\_win32sysloader.pyd
- %TEMP%\_mei9802\_uuid.pyd
- %TEMP%\_mei9802\mfc140u.dll
- %TEMP%\_mei9802\certifi\cacert.pem
- %APPDATA%\empyrean\run.bat
- %TEMP%\_mei9802\altgraph-0.17.3.dist-info\installer
- %APPDATA%\empyrean\dat.txt
- <Current directory>\vault.zip
- %TEMP%\tmpnzjs92h2\gen_py\dicts.dat
- %TEMP%\tmpnzjs92h2\gen_py\__init__.py
- %TEMP%\z7xeg5i8
- %TEMP%\_mei9802\pyinstaller-5.1.dist-info\top_level.txt
- %TEMP%\_mei9802\pyinstaller-5.1.dist-info\entry_points.txt
- %TEMP%\_mei9802\pyinstaller-5.1.dist-info\direct_url.json
- %TEMP%\_mei9802\pyinstaller-5.1.dist-info\wheel
- %TEMP%\_mei9802\pyinstaller-5.1.dist-info\record
- %TEMP%\_mei9802\pyinstaller-5.1.dist-info\metadata
- %TEMP%\_mei9802\pyinstaller-5.1.dist-info\installer
- %TEMP%\_mei9802\_ssl.pyd
- %TEMP%\_mei9802\pyinstaller-5.1.dist-info\copying.txt
- %TEMP%\_mei9802\base_library.zip
- %TEMP%\_mei9802\attrs-23.1.0.dist-info\licenses\license
- %TEMP%\_mei9802\attrs-23.1.0.dist-info\wheel
- %TEMP%\_mei9802\attrs-23.1.0.dist-info\record
- %TEMP%\_mei9802\attrs-23.1.0.dist-info\metadata
- %TEMP%\_mei9802\attrs-23.1.0.dist-info\installer
- %TEMP%\_mei9802\altgraph-0.17.3.dist-info\zip-safe
- %TEMP%\_mei9802\altgraph-0.17.3.dist-info\top_level.txt
- %TEMP%\_mei9802\altgraph-0.17.3.dist-info\wheel
- %TEMP%\_mei9802\altgraph-0.17.3.dist-info\record
- %TEMP%\_mei9802\altgraph-0.17.3.dist-info\metadata
- %TEMP%\_mei9802\altgraph-0.17.3.dist-info\license
- %TEMP%\_mei9802\win32ui.pyd
- %TEMP%\_mei9802\yarl\_quoting_c.cp310-win_amd64.pyd
- %TEMP%\_mei9802\_sqlite3.pyd
- %TEMP%\_mei9802\crypto\hash\_ghash_clmul.pyd
- %TEMP%\_mei9802\crypto\hash\_sha256.pyd
- %TEMP%\_mei9802\crypto\hash\_sha224.pyd
- %TEMP%\_mei9802\crypto\hash\_sha1.pyd
- %TEMP%\_mei9802\crypto\hash\_ripemd160.pyd
- %TEMP%\_mei9802\crypto\hash\_md5.pyd
- %TEMP%\_mei9802\crypto\hash\_md4.pyd
- %TEMP%\_mei9802\crypto\hash\_md2.pyd
- %TEMP%\_mei9802\crypto\hash\_blake2s.pyd
- %TEMP%\_mei9802\crypto\hash\_blake2b.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_ofb.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_ocb.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_eksblowfish.pyd
- %TEMP%\_mei9802\crypto\hash\_sha384.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_ecb.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_des.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_ctr.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_cfb.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_cbc.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_cast.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_blowfish.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_arc2.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_aesni.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_aes.pyd
- %TEMP%\_mei9802\crypto\cipher\_pkcs1_decode.pyd
- %TEMP%\_mei9802\crypto\cipher\_chacha20.pyd
- %TEMP%\_mei9802\crypto\cipher\_salsa20.pyd
- %TEMP%\_mei9802\crypto\cipher\_raw_des3.pyd
- %TEMP%\_mei9802\pil\_imagingft.cp310-win_amd64.pyd
- %TEMP%\_mei9802\_queue.pyd
- %TEMP%\_mei9802\crypto\hash\_ghash_portable.pyd
- %TEMP%\_mei9802\_overlapped.pyd
- %TEMP%\_mei9802\_multiprocessing.pyd
- %TEMP%\_mei9802\_lzma.pyd
- %TEMP%\_mei9802\_hashlib.pyd
- %TEMP%\_mei9802\_elementtree.pyd
- %TEMP%\_mei9802\_decimal.pyd
- %TEMP%\_mei9802\_ctypes.pyd
- %TEMP%\_mei9802\_bz2.pyd
- %TEMP%\_mei9802\_asyncio.pyd
- %TEMP%\_mei9802\vcruntime140_1.dll
- %TEMP%\_mei9802\vcruntime140.dll
- %TEMP%\_mei9802\pil\_webp.cp310-win_amd64.pyd
- %TEMP%\_mei9802\_socket.pyd
- %TEMP%\_mei9802\pil\_imagingtk.cp310-win_amd64.pyd
- %TEMP%\_mei9802\pil\_imagingcms.cp310-win_amd64.pyd
- %TEMP%\_mei9802\pil\_imaging.cp310-win_amd64.pyd
- %TEMP%\_mei9802\crypto\util\_strxor.pyd
- %TEMP%\_mei9802\crypto\util\_cpuid_c.pyd
- %TEMP%\_mei9802\crypto\publickey\_x25519.pyd
- %TEMP%\_mei9802\crypto\publickey\_ed448.pyd
- %TEMP%\_mei9802\crypto\publickey\_ed25519.pyd
- %TEMP%\_mei9802\crypto\publickey\_ec_ws.pyd
- %TEMP%\_mei9802\crypto\protocol\_scrypt.pyd
- %TEMP%\_mei9802\crypto\math\_modexp.pyd
- %TEMP%\_mei9802\crypto\hash\_poly1305.pyd
- %TEMP%\_mei9802\crypto\hash\_keccak.pyd
- %TEMP%\_mei9802\crypto\hash\_sha512.pyd
- nul
Network activity
Connects to
- 'ip##i.co':443
- 'di##ord.com':443
- 'ra#.####ubusercontent.com':443
TCP
Other
- 'ip##i.co':443
- 'di##ord.com':443
- 'ra#.####ubusercontent.com':443
UDP
- DNS ASK ip##i.co
- DNS ASK di##ord.com
- DNS ASK ra#.####ubusercontent.com
Miscellaneous
Searches for the following windows
- ClassName: 'OleMainThreadWndClass' WindowName: ''
Creates and executes the following
- '<SYSTEM32>\cmd.exe' /c "ver"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "<SYSTEM32>\wbem\WMIC.exe csproduct get uuid"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "reg delete HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v empyrean /f"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v empyrean /t REG_SZ /d %APPDATA%\empyrean\run.bat /f"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "netsh wlan show profiles"' (with hidden window)
Creates and executes processes from analysed file.
Executes the following
- '<SYSTEM32>\cmd.exe' /c "ver"
- '<SYSTEM32>\cmd.exe' /c "<SYSTEM32>\wbem\WMIC.exe csproduct get uuid"
- '<SYSTEM32>\wbem\wmic.exe' csproduct get uuid
- '<SYSTEM32>\cmd.exe' /c "reg delete HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v empyrean /f"
- '<SYSTEM32>\reg.exe' delete HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v empyrean /f
- '<SYSTEM32>\cmd.exe' /c "reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v empyrean /t REG_SZ /d %APPDATA%\empyrean\run.bat /f"
- '<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v empyrean /t REG_SZ /d %APPDATA%\empyrean\run.bat /f
- '<SYSTEM32>\cmd.exe' /c "netsh wlan show profiles"
- '<SYSTEM32>\netsh.exe' wlan show profiles
