Technical Information
Malicious functions
Executes the following
- '<SYSTEM32>\taskkill.exe' /F /PID 2412
- '<SYSTEM32>\taskkill.exe' /F /PID 2444
- '<SYSTEM32>\taskkill.exe' /F /PID 4144
- '<SYSTEM32>\taskkill.exe' /F /PID 4444
- '<SYSTEM32>\taskkill.exe' /F /PID 4884
Terminates or attempts to terminate
the following user processes:
- firefox.exe
Modifies file system
Creates the following files
- %TEMP%\_mei31682\vcruntime140.dll
- %TEMP%\_mei31682\vcruntime140_1.dll
- %TEMP%\_mei31682\_asyncio.pyd
- %TEMP%\_mei31682\_bz2.pyd
- %TEMP%\_mei31682\_cffi_backend.cp314-win_amd64.pyd
- %TEMP%\_mei31682\_ctypes.pyd
- %TEMP%\_mei31682\_decimal.pyd
- %TEMP%\_mei31682\_hashlib.pyd
- %TEMP%\_mei31682\_lzma.pyd
- %TEMP%\_mei31682\_multiprocessing.pyd
- %TEMP%\_mei31682\_overlapped.pyd
- %TEMP%\_mei31682\_queue.pyd
- %TEMP%\_mei31682\_socket.pyd
- %TEMP%\_mei31682\_sqlite3.pyd
- %TEMP%\_mei31682\_ssl.pyd
- %TEMP%\_mei31682\_uuid.pyd
- %TEMP%\_mei31682\_wmi.pyd
- %TEMP%\_mei31682\_zstd.pyd
- %TEMP%\_mei31682\aiohttp\_http_parser.cp314-win_amd64.pyd
- %TEMP%\_mei31682\aiohttp\_http_writer.cp314-win_amd64.pyd
- %TEMP%\_mei31682\aiohttp\_websocket\mask.cp314-win_amd64.pyd
- %TEMP%\_mei31682\aiohttp\_websocket\reader_c.cp314-win_amd64.pyd
- %TEMP%\_mei31682\attrs-25.4.0.dist-info\installer
- %TEMP%\_mei31682\attrs-25.4.0.dist-info\metadata
- %TEMP%\_mei31682\attrs-25.4.0.dist-info\record
- %TEMP%\_mei31682\attrs-25.4.0.dist-info\wheel
- %TEMP%\_mei31682\attrs-25.4.0.dist-info\licenses\license
- %TEMP%\_mei31682\base_library.zip
- %TEMP%\_mei31682\cryptography-46.0.3.dist-info\installer
- %TEMP%\_mei31682\cryptography-46.0.3.dist-info\metadata
- %TEMP%\_mei31682\cryptography-46.0.3.dist-info\record
- %TEMP%\_mei31682\cryptography-46.0.3.dist-info\wheel
- %TEMP%\_mei31682\cryptography-46.0.3.dist-info\licenses\license
- %TEMP%\_mei31682\cryptography-46.0.3.dist-info\licenses\license.apache
- %TEMP%\_mei31682\cryptography-46.0.3.dist-info\licenses\license.bsd
- %TEMP%\_mei31682\cryptography\hazmat\bindings\_rust.pyd
- %TEMP%\_mei31682\frozenlist\_frozenlist.cp314-win_amd64.pyd
- %TEMP%\_mei31682\libcrypto-3.dll
- %TEMP%\_mei31682\libffi-8.dll
- %TEMP%\_mei31682\libssl-3.dll
- %TEMP%\_mei31682\multidict\_multidict.cp314-win_amd64.pyd
- %TEMP%\_mei31682\propcache\_helpers_c.cp314-win_amd64.pyd
- %TEMP%\_mei31682\pyexpat.pyd
- %TEMP%\_mei31682\python3.dll
- %TEMP%\_mei31682\python314.dll
- %TEMP%\_mei31682\select.pyd
- %TEMP%\_mei31682\sqlite3.dll
- %TEMP%\_mei31682\unicodedata.pyd
- %TEMP%\_mei31682\yarl\_quoting_c.cp314-win_amd64.pyd
- %TEMP%\buxuxhfv
- %LOCALAPPDATA%\infinityupdateservice\infinity.exe
- %ALLUSERSPROFILE%\microsoft\windows\start menu\programs\startup\infinity.exe
- %TEMP%\historydata.db
- %TEMP%\downloaddata.db
- %TEMP%\autofilldata.db
- %TEMP%\fo3riss3\fo3riss3.0.cs
- %TEMP%\fo3riss3\fo3riss3.cmdline
- %TEMP%\fo3riss3\fo3riss3.out
- %TEMP%\fo3riss3\csc7578519e90e948d38e4c4b1398b2f2db.tmp
- %TEMP%\res199e.tmp
- %TEMP%\fo3riss3\fo3riss3.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%\infinityupdateservice\infinity.exe
Deletes following files that it created itself
- %TEMP%\buxuxhfv
- %TEMP%\historydata.db
- %TEMP%\autofilldata.db
- %TEMP%\res199e.tmp
- %TEMP%\fo3riss3\csc7578519e90e948d38e4c4b1398b2f2db.tmp
- %TEMP%\fo3riss3\fo3riss3.dll
- %TEMP%\fo3riss3\fo3riss3.0.cs
- %TEMP%\fo3riss3\fo3riss3.out
- %TEMP%\fo3riss3\fo3riss3.cmdline
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
- 'di##ord.com':443
TCP
HTTP GET requests
- http://ip##pi.com/json
Other
- 'localhost':49703
- '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 "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' computersystem get Manufacturer
- '<SYSTEM32>\wbem\wmic.exe' path win32_VideoController get name
- '<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%\InfinityUpdateService\Infinity.exe""
- '<SYSTEM32>\attrib.exe' +h +s "%LOCALAPPDATA%\InfinityUpdateService\Infinity.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 2412"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 2444"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4144"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4444"
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4884"
- '<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>\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>\tasklist.exe' /FO LIST
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Get-Clipboard
- '<SYSTEM32>\systeminfo.exe'
- '<SYSTEM32>\cmd.exe' /c "netsh wlan show profiles"
- '<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%\fo3riss3\fo3riss3.cmdline"
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES199E.tmp" "%TEMP%\fo3riss3\CSC7578519E90E948D38E4C4B1398B2F2DB.TMP"
- '<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%\InfinityUpdateService\Infinity.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 2412"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 2444"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4144"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4444"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "taskkill /F /PID 4884"' (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%\fo3riss3\fo3riss3.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES199E.tmp" "%TEMP%\fo3riss3\CSC7578519E90E948D38E4C4B1398B2F2DB.TMP"' (with hidden window)
