Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'wininit' = '"%WINDIR%\security\templates\wininit.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'wininit' = '"%WINDIR%\security\templates\wininit.exe"'
- [HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, "%WINDIR%\security\templates\wininit.exe"'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'wininit' = '"<Current directory>\wininit.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'wininit' = '"<Current directory>\wininit.exe"'
- [HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, "%WINDIR%\security\templates\wininit.exe", "<Current directory>\wininit.exe"'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'iexplore' = '"<Current directory>\iexplore.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'iexplore' = '"<Current directory>\iexplore.exe"'
- [HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, "%WINDIR%\security\templates\wininit.exe", "<Current directory>\wininit.exe", "<Current directory>\iexplore...
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] '<File name>' = '"%HOMEPATH%\Pictures\<File name>.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] '<File name>' = '"%HOMEPATH%\Pictures\<File name>.exe"'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'firefox' = '"%WINDIR%\Web\Wallpaper\Landscapes\firefox.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'firefox' = '"%WINDIR%\Web\Wallpaper\Landscapes\firefox.exe"'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] '<File name>' = '"<Full path to file>"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] '<File name>' = '"<Full path to file>"'
Creates or modifies the following files
- <SYSTEM32>\tasks\wininitw
- <SYSTEM32>\tasks\wininit
- <SYSTEM32>\tasks\iexplorei
- <SYSTEM32>\tasks\<File name>c
- <SYSTEM32>\tasks\<File name>
- <SYSTEM32>\tasks\firefoxf
- <SYSTEM32>\tasks\firefox
- <SYSTEM32>\tasks\iexplore
Modifies file system
Creates the following files
- <Current directory>\276ad90b8186d4
- %TEMP%\grds520pri.bat
- %TEMP%\c209pdrrd0
- %TEMP%\zmh4upvo0i.bat
- %TEMP%\t4k12zjfmm
- nul
- %TEMP%\0oiisauovl.bat
- %TEMP%\3ylhsbkazu
- %TEMP%\xcssbqdo.out
- %TEMP%\xcssbqdo.cmdline
- %TEMP%\t4ynl2c1dv
- %TEMP%\xcssbqdo.0.cs
- %WINDIR%\security\templates\wininit.exe
- <Current directory>\56085415360792
- <Current directory>\wininit.exe
- <Current directory>\9db6e019d4f04e
- <Current directory>\iexplore.exe
- %HOMEPATH%\pictures\276ad90b8186d4
- %HOMEPATH%\pictures\<File name>.exe
- %WINDIR%\web\wallpaper\landscapes\0fc223bdacedc3
- %WINDIR%\web\wallpaper\landscapes\firefox.exe
- %WINDIR%\security\templates\56085415360792
- %TEMP%\lx6xj5lvzm.bat
Deletes the following files
- %TEMP%\xcssbqdo.0.cs
- %TEMP%\xcssbqdo.cmdline
- %TEMP%\xcssbqdo.out
- %TEMP%\3ylhsbkazu
- %TEMP%\t4k12zjfmm
- %TEMP%\c209pdrrd0
- %TEMP%\t4ynl2c1dv
Moves the following files
- from %ProgramFiles%\microsoft office\office14\bcssync.exe to %ProgramFiles%\microsoft office\office14\bcssync.exe.exe
Network activity
UDP
- DNS ASK 32#####m.nyashkoon.ru
- 'localhost':123
Miscellaneous
Restarts the analyzed sample
Executes the following
- '<SYSTEM32>\schtasks.exe' /create /tn "wininitw" /sc MINUTE /mo 12 /tr "'%WINDIR%\security\templates\wininit.exe'" /f
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\0oiiSauoVl.bat"
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\7gEkM0BkJD.bat"
- '<SYSTEM32>\schtasks.exe' /create /tn "<File name>c" /sc MINUTE /mo 11 /tr "'<Full path to file>'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "<File name>" /sc ONLOGON /tr "'<Full path to file>'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "<File name>c" /sc MINUTE /mo 5 /tr "'<Full path to file>'" /rl HIGHEST /f
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\ZMh4UPVO0I.bat"
- '<SYSTEM32>\chcp.com' 65001
- '<SYSTEM32>\w32tm.exe' /stripchart /computer:localhost /period:5 /dataonly /samples:2
- '<SYSTEM32>\schtasks.exe' /create /tn "firefoxf" /sc MINUTE /mo 5 /tr "'%WINDIR%\Web\Wallpaper\Landscapes\firefox.exe'" /f
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\grDS520PRI.bat"
- '<SYSTEM32>\ping.exe' -n 10 localhost
- '<SYSTEM32>\schtasks.exe' /create /tn "firefox" /sc ONLOGON /tr "'%WINDIR%\Web\Wallpaper\Landscapes\firefox.exe'" /rl HIGHEST /f
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\Lx6xj5lVzM.bat"
- '<SYSTEM32>\schtasks.exe' /create /tn "firefoxf" /sc MINUTE /mo 11 /tr "'%WINDIR%\Web\Wallpaper\Landscapes\firefox.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "<File name>c" /sc MINUTE /mo 13 /tr "'%HOMEPATH%\Pictures\<File name>.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "iexplorei" /sc MINUTE /mo 5 /tr "'<Current directory>\iexplore.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "iexplore" /sc ONLOGON /tr "'<Current directory>\iexplore.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "wininit" /sc ONLOGON /tr "'%WINDIR%\security\templates\wininit.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "wininitw" /sc MINUTE /mo 5 /tr "'<Current directory>\wininit.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "wininitw" /sc MINUTE /mo 11 /tr "'<Current directory>\wininit.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "iexplorei" /sc MINUTE /mo 9 /tr "'<Current directory>\iexplore.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "<File name>c" /sc MINUTE /mo 13 /tr "'%HOMEPATH%\Pictures\<File name>.exe'" /rl HIGHEST /f
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\xcssbqdo.cmdline"
- '<SYSTEM32>\schtasks.exe' /create /tn "wininitw" /sc MINUTE /mo 12 /tr "'%WINDIR%\security\templates\wininit.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "<File name>" /sc ONLOGON /tr "'%HOMEPATH%\Pictures\<File name>.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "wininit" /sc ONLOGON /tr "'<Current directory>\wininit.exe'" /rl HIGHEST /f
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\Lx6xj5lVzM.bat"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\0oiiSauoVl.bat"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\xcssbqdo.cmdline"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\ZMh4UPVO0I.bat"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\grDS520PRI.bat"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\7gEkM0BkJD.bat"' (with hidden window)
