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 3088
- '<SYSTEM32>\taskkill.exe' /F /PID 3280
- '<SYSTEM32>\taskkill.exe' /F /PID 3540
- '<SYSTEM32>\taskkill.exe' /F /PID 3680
- '<SYSTEM32>\taskkill.exe' /F /PID 4076
Terminates or attempts to terminate
the following user processes:
- firefox.exe
Modifies file system
Creates the following files
- %TEMP%\_mei17362\vcruntime140.dll
- %TEMP%\_mei17362\vcruntime140_1.dll
- %TEMP%\_mei17362\_asyncio.pyd
- %TEMP%\_mei17362\_bz2.pyd
- %TEMP%\_mei17362\_cffi_backend.cp313-win_amd64.pyd
- %TEMP%\_mei17362\_ctypes.pyd
- %TEMP%\_mei17362\_decimal.pyd
- %TEMP%\_mei17362\_hashlib.pyd
- %TEMP%\_mei17362\_lzma.pyd
- %TEMP%\_mei17362\_multiprocessing.pyd
- %TEMP%\_mei17362\_overlapped.pyd
- %TEMP%\_mei17362\_queue.pyd
- %TEMP%\_mei17362\_socket.pyd
- %TEMP%\_mei17362\_sqlite3.pyd
- %TEMP%\_mei17362\_ssl.pyd
- %TEMP%\_mei17362\_uuid.pyd
- %TEMP%\_mei17362\_wmi.pyd
- %TEMP%\_mei17362\aiohttp\_helpers.cp313-win_amd64.pyd
- %TEMP%\_mei17362\aiohttp\_http_parser.cp313-win_amd64.pyd
- %TEMP%\_mei17362\aiohttp\_http_writer.cp313-win_amd64.pyd
- %TEMP%\_mei17362\aiohttp\_websocket.cp313-win_amd64.pyd
- %TEMP%\_mei17362\attrs-24.2.0.dist-info\installer
- %TEMP%\_mei17362\attrs-24.2.0.dist-info\metadata
- %TEMP%\_mei17362\attrs-24.2.0.dist-info\record
- %TEMP%\_mei17362\attrs-24.2.0.dist-info\wheel
- %TEMP%\_mei17362\attrs-24.2.0.dist-info\licenses\license
- %TEMP%\_mei17362\base_library.zip
- %TEMP%\_mei17362\cryptography-43.0.3.dist-info\installer
- %TEMP%\_mei17362\cryptography-43.0.3.dist-info\metadata
- %TEMP%\_mei17362\cryptography-43.0.3.dist-info\record
- %TEMP%\_mei17362\cryptography-43.0.3.dist-info\wheel
- %TEMP%\_mei17362\cryptography-43.0.3.dist-info\license_files\license
- %TEMP%\_mei17362\cryptography-43.0.3.dist-info\license_files\license.apache
- %TEMP%\_mei17362\cryptography-43.0.3.dist-info\license_files\license.bsd
- %TEMP%\_mei17362\cryptography\hazmat\bindings\_rust.pyd
- %TEMP%\_mei17362\frozenlist\_frozenlist.cp313-win_amd64.pyd
- %TEMP%\_mei17362\libcrypto-3.dll
- %TEMP%\_mei17362\libffi-8.dll
- %TEMP%\_mei17362\libssl-3.dll
- %TEMP%\_mei17362\multidict\_multidict.cp313-win_amd64.pyd
- %TEMP%\_mei17362\propcache\_helpers_c.cp313-win_amd64.pyd
- %TEMP%\_mei17362\pyexpat.pyd
- %TEMP%\_mei17362\python3.dll
- %TEMP%\_mei17362\python313.dll
- %TEMP%\_mei17362\select.pyd
- %TEMP%\_mei17362\setuptools\_vendor\importlib_metadata-8.0.0.dist-info\installer
- %TEMP%\_mei17362\setuptools\_vendor\importlib_metadata-8.0.0.dist-info\license
- %TEMP%\_mei17362\setuptools\_vendor\importlib_metadata-8.0.0.dist-info\metadata
- %TEMP%\_mei17362\setuptools\_vendor\importlib_metadata-8.0.0.dist-info\record
- %TEMP%\_mei17362\setuptools\_vendor\importlib_metadata-8.0.0.dist-info\wheel
- %TEMP%\_mei17362\setuptools\_vendor\importlib_metadata-8.0.0.dist-info\top_level.txt
- %TEMP%\_mei17362\setuptools\_vendor\jaraco\text\lorem ipsum.txt
- %TEMP%\_mei17362\setuptools\_vendor\wheel-0.43.0.dist-info\installer
- %TEMP%\_mei17362\setuptools\_vendor\wheel-0.43.0.dist-info\license.txt
- %TEMP%\_mei17362\setuptools\_vendor\wheel-0.43.0.dist-info\metadata
- %TEMP%\_mei17362\setuptools\_vendor\wheel-0.43.0.dist-info\record
- %TEMP%\_mei17362\setuptools\_vendor\wheel-0.43.0.dist-info\wheel
- %TEMP%\_mei17362\setuptools\_vendor\wheel-0.43.0.dist-info\entry_points.txt
- %TEMP%\_mei17362\sqlite3.dll
- %TEMP%\_mei17362\unicodedata.pyd
- %TEMP%\_mei17362\yarl\_quoting_c.cp313-win_amd64.pyd
- %TEMP%\iixncop4
- %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
Modifies the following files
Network activity
Connects to
- 'localhost':49692
- 'localhost':49694
- 'localhost':49696
- 'localhost':49698
- 'localhost':49700
- 'ip##pi.com':80
TCP
HTTP GET requests
- http://ip##pi.com/json
Other
- 'localhost':49700
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>\tasklist.exe'
- '<SYSTEM32>\wbem\wmic.exe' computersystem get Manufacturer
- '<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 3088"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 3280"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 3540"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 3680"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4076"
- '<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>\windowspowershell\v1.0\powershell.exe' Get-Clipboard
- '<SYSTEM32>\tasklist.exe' /FO LIST
- '<SYSTEM32>\chcp.com'
- '<SYSTEM32>\cmd.exe' /c "netsh wlan show profiles"
- '<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>\netsh.exe' wlan show profiles
- '<SYSTEM32>\systeminfo.exe'
- '<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>\ipconfig.exe' /all
- '<SYSTEM32>\route.exe' print
- '<SYSTEM32>\arp.exe' -a
- '<SYSTEM32>\netstat.exe' -ano
- '<SYSTEM32>\sc.exe' query type= service state= all
- '<SYSTEM32>\netsh.exe' firewall show state
- '<SYSTEM32>\netsh.exe' firewall show config
- '<SYSTEM32>\cmd.exe' /c "powershell.exe -NoProfile -ExecutionPolicy Bypass -EncodedCommand JABzAG8AdQByAGMAZQAgAD0AIABAACIADQAKAHUAcwBpAG4AZwAgAFMAeQBzAHQAZQBtADsADQAKAHUAcwBpAG4AZwAgAFMAeQBzAHQAZQBtAC4AQwBvAGwAbAB...
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -NoProfile -ExecutionPolicy Bypass -EncodedCommand JABzAG8AdQByAGMAZQAgAD0AIABAACIADQAKAHUAcwBpAG4AZwAgAFMAeQBzAHQAZQBtADsADQAKAHUAcwBpAG4AZwAgAFMAeQBzAHQAZQBtAC4AQwBvAGwAbABlAGMAdABpAG8AbgBzAC...
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\5xrnqihb\5xrnqihb.cmdline"
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES6E5C.tmp" "%TEMP%\5xrnqihb\CSC679BBB40F485497BADFB4A582366EE5F.TMP"
- '<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 3088"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 3280"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 3540"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 3680"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4076"' (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 "netsh wlan show profiles"' (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 "powershell.exe -NoProfile -ExecutionPolicy Bypass -EncodedCommand JABzAG8AdQByAGMAZQAgAD0AIABAACIADQAKAHUAcwBpAG4AZwAgAFMAeQBzAHQAZQBtADsADQAKAHUAcwBpAG4AZwAgAFMAeQBzAHQAZQBtAC4AQwBvAGwAbAB...' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\5xrnqihb\5xrnqihb.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES6E5C.tmp" "%TEMP%\5xrnqihb\CSC679BBB40F485497BADFB4A582366EE5F.TMP"' (with hidden window)
