Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Exela Update Service' = '%LOCALAPPDATA%\ExelaUpdateService\Exela.exe'
Malicious functions
Executes the following
- '<SYSTEM32>\taskkill.exe' /F /PID 1868
- '<SYSTEM32>\taskkill.exe' /F /PID 2600
- '<SYSTEM32>\taskkill.exe' /F /PID 4248
- '<SYSTEM32>\taskkill.exe' /F /PID 4496
- '<SYSTEM32>\taskkill.exe' /F /PID 4964
Terminates or attempts to terminate
the following user processes:
- firefox.exe
Modifies file system
Creates the following files
- %TEMP%\_mei58962\vcruntime140.dll
- %TEMP%\_mei58962\_asyncio.pyd
- %TEMP%\_mei58962\_bz2.pyd
- %TEMP%\_mei58962\_cffi_backend.cp311-win_amd64.pyd
- %TEMP%\_mei58962\_ctypes.pyd
- %TEMP%\_mei58962\_decimal.pyd
- %TEMP%\_mei58962\_hashlib.pyd
- %TEMP%\_mei58962\_lzma.pyd
- %TEMP%\_mei58962\_multiprocessing.pyd
- %TEMP%\_mei58962\_overlapped.pyd
- %TEMP%\_mei58962\_queue.pyd
- %TEMP%\_mei58962\_socket.pyd
- %TEMP%\_mei58962\_sqlite3.pyd
- %TEMP%\_mei58962\_ssl.pyd
- %TEMP%\_mei58962\_uuid.pyd
- %TEMP%\_mei58962\aiohttp\_http_parser.cp311-win_amd64.pyd
- %TEMP%\_mei58962\aiohttp\_http_writer.cp311-win_amd64.pyd
- %TEMP%\_mei58962\aiohttp\_websocket\mask.cp311-win_amd64.pyd
- %TEMP%\_mei58962\aiohttp\_websocket\reader_c.cp311-win_amd64.pyd
- %TEMP%\_mei58962\api-ms-win-core-console-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-datetime-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-debug-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-errorhandling-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-fibers-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-file-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-file-l1-2-0.dll
- %TEMP%\_mei58962\api-ms-win-core-file-l2-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-handle-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-heap-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-interlocked-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-libraryloader-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-localization-l1-2-0.dll
- %TEMP%\_mei58962\api-ms-win-core-memory-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-namedpipe-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-processenvironment-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-processthreads-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-processthreads-l1-1-1.dll
- %TEMP%\_mei58962\api-ms-win-core-profile-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-rtlsupport-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-string-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-synch-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-synch-l1-2-0.dll
- %TEMP%\_mei58962\api-ms-win-core-sysinfo-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-timezone-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-core-util-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-conio-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-convert-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-environment-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-filesystem-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-heap-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-locale-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-math-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-process-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-runtime-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-stdio-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-string-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-time-l1-1-0.dll
- %TEMP%\_mei58962\api-ms-win-crt-utility-l1-1-0.dll
- %TEMP%\_mei58962\attrs-25.4.0.dist-info\installer
- %TEMP%\_mei58962\attrs-25.4.0.dist-info\metadata
- %TEMP%\_mei58962\attrs-25.4.0.dist-info\record
- %TEMP%\_mei58962\attrs-25.4.0.dist-info\wheel
- %TEMP%\_mei58962\attrs-25.4.0.dist-info\licenses\license
- %TEMP%\_mei58962\base_library.zip
- %TEMP%\_mei58962\cryptography-46.0.3.dist-info\installer
- %TEMP%\_mei58962\cryptography-46.0.3.dist-info\metadata
- %TEMP%\_mei58962\cryptography-46.0.3.dist-info\record
- %TEMP%\_mei58962\cryptography-46.0.3.dist-info\wheel
- %TEMP%\_mei58962\cryptography-46.0.3.dist-info\licenses\license
- %TEMP%\_mei58962\cryptography-46.0.3.dist-info\licenses\license.apache
- %TEMP%\_mei58962\cryptography-46.0.3.dist-info\licenses\license.bsd
- %TEMP%\_mei58962\cryptography\hazmat\bindings\_rust.pyd
- %TEMP%\_mei58962\frozenlist\_frozenlist.cp311-win_amd64.pyd
- %TEMP%\_mei58962\libcrypto-1_1.dll
- %TEMP%\_mei58962\libffi-8.dll
- %TEMP%\_mei58962\libssl-1_1.dll
- %TEMP%\_mei58962\multidict\_multidict.cp311-win_amd64.pyd
- %TEMP%\_mei58962\propcache\_helpers_c.cp311-win_amd64.pyd
- %TEMP%\_mei58962\pyexpat.pyd
- %TEMP%\_mei58962\python3.dll
- %TEMP%\_mei58962\python311.dll
- %TEMP%\_mei58962\select.pyd
- %TEMP%\_mei58962\sqlite3.dll
- %TEMP%\_mei58962\ucrtbase.dll
- %TEMP%\_mei58962\unicodedata.pyd
- %TEMP%\_mei58962\yarl\_quoting_c.cp311-win_amd64.pyd
- %TEMP%\pjd94aft
- %LOCALAPPDATA%\exelaupdateservice\exela.exe
- %TEMP%\historydata.db
- %TEMP%\downloaddata.db
- %TEMP%\autofilldata.db
- %TEMP%\mudgitt1\mudgitt1.0.cs
- %TEMP%\mudgitt1\mudgitt1.cmdline
- %TEMP%\mudgitt1\mudgitt1.out
- %TEMP%\mudgitt1\cscf7ce878a936c4ffd9a577efdc42abdfe.tmp
- %TEMP%\rescbb3.tmp
- %TEMP%\mudgitt1\mudgitt1.dll
- %TEMP%\d95d883b-f91d-4ce5-a5c5-d08bb6a85dec\display (1).png
- %TEMP%\d95d883b-f91d-4ce5-a5c5-d08bb6a85dec\process_info.txt
- %TEMP%\d95d883b-f91d-4ce5-a5c5-d08bb6a85dec\browsers\firefox\history.txt
- %TEMP%\d95d883b-f91d-4ce5-a5c5-d08bb6a85dec\browsers\historys.txt
- %TEMP%\d95d883b-f91d-4ce5-a5c5-d08bb6a85dec\system_info.txt
- %TEMP%\d95d883b-f91d-4ce5-a5c5-d08bb6a85dec\network_info.txt
- %TEMP%\d95d883b-f91d-4ce5-a5c5-d08bb6a85dec.zip
Sets the 'hidden' attribute to the following files
- %LOCALAPPDATA%\exelaupdateservice\exela.exe
Deletes following files that it created itself
- %TEMP%\pjd94aft
- %TEMP%\historydata.db
- %TEMP%\autofilldata.db
- %TEMP%\rescbb3.tmp
- %TEMP%\mudgitt1\cscf7ce878a936c4ffd9a577efdc42abdfe.tmp
- %TEMP%\mudgitt1\mudgitt1.cmdline
- %TEMP%\mudgitt1\mudgitt1.dll
- %TEMP%\mudgitt1\mudgitt1.0.cs
- %TEMP%\mudgitt1\mudgitt1.out
Modifies the following files
Substitutes the following files
- %TEMP%\historydata.db
- %TEMP%\autofilldata.db
Network activity
Connects to
- 'localhost':49699
- 'localhost':49701
- 'localhost':49703
- 'localhost':49705
- 'localhost':49707
- 'ip##pi.com':80
- 'di##ord.com':443
TCP
HTTP GET requests
- http://ip##pi.com/json
Other
- 'localhost':49707
- 'di##ord.com':443
UDP
- DNS ASK ip##pi.com
- DNS ASK di##ord.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 "reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "Exela Update Service" /t REG_SZ /d "%LOCALAPPDATA%\ExelaUpdateService\Exela.exe" /f"
- '<SYSTEM32>\reg.exe' add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "Exela Update Service" /t REG_SZ /d "%LOCALAPPDATA%\ExelaUpdateService\Exela.exe" /f
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 1868"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 2600"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4248"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4496"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4964"
- '<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>\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%\mudgitt1\mudgitt1.cmdline"
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESCBB3.tmp" "%TEMP%\mudgitt1\CSCF7CE878A936C4FFD9A577EFDC42ABDFE.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 "reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "Exela Update Service" /t REG_SZ /d "%LOCALAPPDATA%\ExelaUpdateService\Exela.exe" /f"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 1868"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 2600"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4248"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4496"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4964"' (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)
- '<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%\mudgitt1\mudgitt1.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESCBB3.tmp" "%TEMP%\mudgitt1\CSCF7CE878A936C4FFD9A577EFDC42ABDFE.TMP"' (with hidden window)
