Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <SYSTEM32>\tasks\exelaupdateservice
- <SYSTEM32>\tasks\exelaupdateservice2
Malicious functions
Executes the following
- '<SYSTEM32>\taskkill.exe' /F /PID 2176
- '<SYSTEM32>\taskkill.exe' /F /PID 3448
- '<SYSTEM32>\taskkill.exe' /F /PID 2324
- '<SYSTEM32>\taskkill.exe' /F /PID 2788
- '<SYSTEM32>\taskkill.exe' /F /PID 2764
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\cmd.exe
the following user processes:
- firefox.exe
Modifies file system
Creates the following files
- %TEMP%\_mei12802\vcruntime140.dll
- %TEMP%\_mei12802\_asyncio.pyd
- %TEMP%\_mei12802\_brotli.cp310-win_amd64.pyd
- %TEMP%\_mei12802\_bz2.pyd
- %TEMP%\_mei12802\_cffi_backend.cp310-win_amd64.pyd
- %TEMP%\_mei12802\_ctypes.pyd
- %TEMP%\_mei12802\_decimal.pyd
- %TEMP%\_mei12802\_hashlib.pyd
- %TEMP%\_mei12802\_lzma.pyd
- %TEMP%\_mei12802\_multiprocessing.pyd
- %TEMP%\_mei12802\_overlapped.pyd
- %TEMP%\_mei12802\_queue.pyd
- %TEMP%\_mei12802\_socket.pyd
- %TEMP%\_mei12802\_sqlite3.pyd
- %TEMP%\_mei12802\_ssl.pyd
- %TEMP%\_mei12802\_uuid.pyd
- %TEMP%\_mei12802\aiohttp\_helpers.cp310-win_amd64.pyd
- %TEMP%\_mei12802\aiohttp\_http_parser.cp310-win_amd64.pyd
- %TEMP%\_mei12802\aiohttp\_http_writer.cp310-win_amd64.pyd
- %TEMP%\_mei12802\aiohttp\_websocket.cp310-win_amd64.pyd
- %TEMP%\_mei12802\api-ms-win-core-console-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-datetime-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-debug-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-errorhandling-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-file-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-file-l1-2-0.dll
- %TEMP%\_mei12802\api-ms-win-core-file-l2-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-handle-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-heap-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-interlocked-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-libraryloader-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-localization-l1-2-0.dll
- %TEMP%\_mei12802\api-ms-win-core-memory-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-namedpipe-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-processenvironment-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-processthreads-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-processthreads-l1-1-1.dll
- %TEMP%\_mei12802\api-ms-win-core-profile-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-rtlsupport-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-string-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-synch-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-synch-l1-2-0.dll
- %TEMP%\_mei12802\api-ms-win-core-sysinfo-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-timezone-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-core-util-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-conio-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-convert-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-environment-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-filesystem-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-heap-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-locale-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-math-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-process-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-runtime-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-stdio-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-string-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-time-l1-1-0.dll
- %TEMP%\_mei12802\api-ms-win-crt-utility-l1-1-0.dll
- %TEMP%\_mei12802\attrs-24.2.0.dist-info\installer
- %TEMP%\_mei12802\attrs-24.2.0.dist-info\metadata
- %TEMP%\_mei12802\attrs-24.2.0.dist-info\record
- %TEMP%\_mei12802\attrs-24.2.0.dist-info\wheel
- %TEMP%\_mei12802\attrs-24.2.0.dist-info\licenses\license
- %TEMP%\_mei12802\base_library.zip
- %TEMP%\_mei12802\cryptography-43.0.1.dist-info\installer
- %TEMP%\_mei12802\cryptography-43.0.1.dist-info\metadata
- %TEMP%\_mei12802\cryptography-43.0.1.dist-info\record
- %TEMP%\_mei12802\cryptography-43.0.1.dist-info\wheel
- %TEMP%\_mei12802\cryptography-43.0.1.dist-info\license_files\license
- %TEMP%\_mei12802\cryptography-43.0.1.dist-info\license_files\license.apache
- %TEMP%\_mei12802\cryptography-43.0.1.dist-info\license_files\license.bsd
- %TEMP%\_mei12802\cryptography\hazmat\bindings\_rust.pyd
- %TEMP%\_mei12802\frozenlist\_frozenlist.cp310-win_amd64.pyd
- %TEMP%\_mei12802\importlib_metadata-8.5.0.dist-info\installer
- %TEMP%\_mei12802\importlib_metadata-8.5.0.dist-info\license
- %TEMP%\_mei12802\importlib_metadata-8.5.0.dist-info\metadata
- %TEMP%\_mei12802\importlib_metadata-8.5.0.dist-info\record
- %TEMP%\_mei12802\importlib_metadata-8.5.0.dist-info\wheel
- %TEMP%\_mei12802\importlib_metadata-8.5.0.dist-info\top_level.txt
- %TEMP%\_mei12802\libcrypto-1_1.dll
- %TEMP%\_mei12802\libffi-7.dll
- %TEMP%\_mei12802\libssl-1_1.dll
- %TEMP%\_mei12802\multidict\_multidict.cp310-win_amd64.pyd
- %TEMP%\_mei12802\pyexpat.pyd
- %TEMP%\_mei12802\python3.dll
- %TEMP%\_mei12802\python310.dll
- %TEMP%\_mei12802\select.pyd
- %TEMP%\_mei12802\sqlite3.dll
- %TEMP%\_mei12802\ucrtbase.dll
- %TEMP%\_mei12802\unicodedata.pyd
- %TEMP%\_mei12802\yarl\_helpers_c.cp310-win_amd64.pyd
- %TEMP%\_mei12802\yarl\_quoting_c.cp310-win_amd64.pyd
- %TEMP%\ofk2p7jk
- %LOCALAPPDATA%\exelaupdateservice\exela.exe
- %TEMP%\historydata.db
- %TEMP%\downloaddata.db
- %TEMP%\autofilldata.db
Sets the 'hidden' attribute to the following files
- %LOCALAPPDATA%\exelaupdateservice\exela.exe
Deletes following files that it created itself
- %TEMP%\ofk2p7jk
- %TEMP%\historydata.db
- %TEMP%\autofilldata.db
Modifies the following files
Substitutes the following files
- %TEMP%\historydata.db
- %TEMP%\autofilldata.db
Network activity
Connects to
- 'localhost':49695
- 'localhost':49697
- 'localhost':49699
- 'localhost':49701
- 'localhost':49703
- 'ip##pi.com':80
TCP
HTTP GET requests
- http://ip##pi.com/json
Other
- 'localhost':49703
UDP
- DNS ASK ip##pi.com
Miscellaneous
Searches for the following windows
- ClassName: '' WindowName: ''
Restarts the analyzed sample
Executes the following
- '<SYSTEM32>\cmd.exe' /c "ver"
- '<SYSTEM32>\cmd.exe' /c "wmic path win32_VideoController get name"
- '<SYSTEM32>\cmd.exe' /c "wmic computersystem get Manufacturer"
- '<SYSTEM32>\cmd.exe' /c "gdb --version"
- '<SYSTEM32>\cmd.exe' /c "tasklist"
- '<SYSTEM32>\wbem\wmic.exe' path win32_VideoController get name
- '<SYSTEM32>\wbem\wmic.exe' computersystem get Manufacturer
- '<SYSTEM32>\tasklist.exe'
- '<SYSTEM32>\cmd.exe' /c "wmic path Win32_ComputerSystem get Manufacturer"
- '<SYSTEM32>\wbem\wmic.exe' path Win32_ComputerSystem get Manufacturer
- '<SYSTEM32>\cmd.exe' /c "wmic csproduct get uuid"
- '<SYSTEM32>\wbem\wmic.exe' csproduct get uuid
- '<SYSTEM32>\cmd.exe' /c "attrib +h +s "%LOCALAPPDATA%\ExelaUpdateService\Exela.exe""
- '<SYSTEM32>\attrib.exe' +h +s "%LOCALAPPDATA%\ExelaUpdateService\Exela.exe"
- '<SYSTEM32>\cmd.exe' /c "schtasks /query /TN "ExelaUpdateService""
- '<SYSTEM32>\schtasks.exe' /query /TN "ExelaUpdateService"
- '<SYSTEM32>\cmd.exe' /c "schtasks /create /f /sc onlogon /rl highest /tn "ExelaUpdateService" /tr "%LOCALAPPDATA%\ExelaUpdateService\Exela.exe""
- '<SYSTEM32>\schtasks.exe' /create /f /sc onlogon /rl highest /tn "ExelaUpdateService" /tr "%LOCALAPPDATA%\ExelaUpdateService\Exela.exe"
- '<SYSTEM32>\cmd.exe' /c "schtasks /create /f /sc hourly /mo 1 /rl highest /tn "ExelaUpdateService2" /tr "%LOCALAPPDATA%\ExelaUpdateService\Exela.exe""
- '<SYSTEM32>\schtasks.exe' /create /f /sc hourly /mo 1 /rl highest /tn "ExelaUpdateService2" /tr "%LOCALAPPDATA%\ExelaUpdateService\Exela.exe"
- '<SYSTEM32>\cmd.exe' /c "mshta "javascript:var sh=new ActiveXObject('WScript.Shell'); sh.Popup('The Program can\x22t start because api-ms-win-crt-runtime-|l1-1-.dll is missing from your computer. Try reinstalling t...
- '<SYSTEM32>\mshta.exe' "javascript:var sh=new ActiveXObject('WScript.Shell'); sh.Popup('The Program can\x22t start because api-ms-win-crt-runtime-|l1-1-.dll is missing from your computer. Try reinstalling the program...
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 2176"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 3448"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 2324"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 2788"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 2764"
- '<SYSTEM32>\cmd.exe' /c "cmd.exe /c chcp"
- '<SYSTEM32>\cmd.exe' /c "tasklist /FO LIST"
- '<SYSTEM32>\cmd.exe' /c "powershell.exe Get-Clipboard"
- '<SYSTEM32>\cmd.exe' /c chcp
- '<SYSTEM32>\tasklist.exe' /FO LIST
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Get-Clipboard
- '<SYSTEM32>\chcp.com'
- '<SYSTEM32>\cmd.exe' /c "echo ####System Info#### & systeminfo & echo ####System Version#### & ver & echo ####Host Name#### & hostname & echo ####Environment Variable#### & set & echo ####Logical Disk#### & wmic lo...
- '<SYSTEM32>\cmd.exe' /c "netsh wlan show profiles"
- '<SYSTEM32>\systeminfo.exe'
- '<SYSTEM32>\netsh.exe' wlan show profiles
- '<SYSTEM32>\hostname.exe'
- '<SYSTEM32>\wbem\wmic.exe' logicaldisk get caption,description,providername
- '<SYSTEM32>\net.exe' user
- '<SYSTEM32>\net1.exe' user
- '<SYSTEM32>\query.exe' user
- '<SYSTEM32>\quser.exe'
- '<SYSTEM32>\net.exe' localgroup
- '<SYSTEM32>\net1.exe' localgroup
- '<SYSTEM32>\net.exe' localgroup administrators
- '<SYSTEM32>\net1.exe' localgroup administrators
- '<SYSTEM32>\net.exe' user guest
- '<SYSTEM32>\net1.exe' user guest
- '<SYSTEM32>\net.exe' user administrator
- '<SYSTEM32>\net1.exe' user administrator
- '<SYSTEM32>\wbem\wmic.exe' startup get caption,command
- '<SYSTEM32>\tasklist.exe' /svc
- '<SYSTEM32>\cmd.exe' /c "ver"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "wmic path win32_VideoController get name"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "wmic computersystem get Manufacturer"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "gdb --version"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "tasklist"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "wmic path Win32_ComputerSystem get Manufacturer"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "wmic csproduct get uuid"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "attrib +h +s "%LOCALAPPDATA%\ExelaUpdateService\Exela.exe""' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "schtasks /query /TN "ExelaUpdateService""' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "schtasks /create /f /sc onlogon /rl highest /tn "ExelaUpdateService" /tr "%LOCALAPPDATA%\ExelaUpdateService\Exela.exe""' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "schtasks /create /f /sc hourly /mo 1 /rl highest /tn "ExelaUpdateService2" /tr "%LOCALAPPDATA%\ExelaUpdateService\Exela.exe""' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "mshta "javascript:var sh=new ActiveXObject('WScript.Shell'); sh.Popup('The Program can\x22t start because api-ms-win-crt-runtime-|l1-1-.dll is missing from your computer. Try reinstalling t...' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 2176"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 3448"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 2324"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 2788"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 2764"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "cmd.exe /c chcp"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "tasklist /FO LIST"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "powershell.exe Get-Clipboard"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "echo ####System Info#### & systeminfo & echo ####System Version#### & ver & echo ####Host Name#### & hostname & echo ####Environment Variable#### & set & echo ####Logical Disk#### & wmic lo...' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "netsh wlan show profiles"' (with hidden window)
