Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Win32 SystemNetwork Application' = '%PROGRAMDATA%\SystemNetwork\xCoreManagment.exe'
- [<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'Win32 SystemNetwork Application' = '%PROGRAMDATA%\SystemNetwork\xCoreManagment.exe'
- [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Win32 SystemNetwork Application' = '%PROGRAMDATA%\SystemNetwork\xCoreManagment.exe'
Malicious functions
Searches for windows to
detect analytical utilities:
- ClassName: 'OLLYDBG', WindowName: ''
- ClassName: 'GBDYLLO', WindowName: ''
- ClassName: 'pediy06', WindowName: ''
- ClassName: 'FilemonClass', WindowName: ''
- ClassName: '', WindowName: 'File Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'PROCMON_WINDOW_CLASS', WindowName: ''
- ClassName: '', WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'RegmonClass', WindowName: ''
- ClassName: '', WindowName: 'Registry Monitor - Sysinternals: www.sysinternals.com'
Modifies file system
Creates the following files
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\desktop.ini
- %PROGRAMDATA%\intelcore\config.json
- %PROGRAMDATA%\commonsfiles\other_local.txt
- %PROGRAMDATA%\commonsfiles\local_version.txt
- %PROGRAMDATA%\systemnetwork\video.txt
- %PROGRAMDATA%\systemnetwork\arch.txt
- %PROGRAMDATA%\systemnetwork\xcoremanagment.exe
- %LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\index.dat
- %PROGRAMDATA%\intelcore\applicationsframehost.exe
- %APPDATA%\microsoft\windows\cookies\low\index.dat
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\vmpwyn6y\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\8nbx25yj\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\f9n2ai18\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\index.dat
- %LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\history\low\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\qax9tusr\desktop.ini
- %PROGRAMDATA%\commonsfiles\cpu_arch.txt
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\f9n2ai18\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\8nbx25yj\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\vmpwyn6y\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\qax9tusr\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\history\low\desktop.ini
- %PROGRAMDATA%\intelcore\applicationsframehost.exe
- %PROGRAMDATA%\commonsfiles\other_local.txt
- %PROGRAMDATA%\commonsfiles\local_version.txt
- %PROGRAMDATA%\commonsfiles\cpu_arch.txt
Deletes itself.
Network activity
TCP
HTTP GET requests
- http://vm###560.had.wf/Build2/xCoreManagment.exe
- http://vm###560.had.wf/Build2/server_version.txt
- http://vm###560.had.wf/Build2/server_version.txt?
- http://vm###560.had.wf/Build2/other/other.txt
- http://vm###560.had.wf/Build2/other/other.txt?
- http://vm###560.had.wf/Build2/x64/config.json
- http://vm###560.had.wf/Build2/x64/ApplicationsFrameHost.exe
UDP
- DNS ASK vm###560.had.wf
Miscellaneous
Searches for the following windows
- ClassName: '18467-41' WindowName: ''
Creates and executes the following
- '%PROGRAMDATA%\systemnetwork\xcoremanagment.exe'
- '%PROGRAMDATA%\intelcore\applicationsframehost.exe'
- '%WINDIR%\syswow64\cmd.exe' /k ping -n 5 localhost < nul & del /F /Q "<Full path to file>"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c WMIC OS get osarchitecture >%PROGRAMDATA%\SystemNetwork\arch.txt' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c wmic path win32_VideoController get name >%PROGRAMDATA%\SystemNetwork\video.txt' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c icacls %PROGRAMDATA%\SystemNetwork /deny "%username%:(R,REA,RA)"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c icacls %PROGRAMDATA%\SystemNetwork /deny "Users:(R,REA,RA)"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c icacls %PROGRAMDATA%\SystemNetwork /deny "Administrators:(R,REA,RA))"' (with hidden window)
- '%PROGRAMDATA%\intelcore\applicationsframehost.exe' ' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c icacls %PROGRAMDATA%\IntelCore /deny "%username%:(R,REA,RA)"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c icacls %PROGRAMDATA%\IntelCore /deny "Users:(R,REA,RA)"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c icacls %PROGRAMDATA%\IntelCore /deny "Administrators:(R,REA,RA))"' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\rundll32.exe' "%WINDIR%\syswow64\WININET.dll",DispatchAPICall 1
- '%WINDIR%\syswow64\icacls.exe' %PROGRAMDATA%\IntelCore /deny "Administrators:(R,REA,RA))"
- '%WINDIR%\syswow64\cmd.exe' /c icacls %PROGRAMDATA%\IntelCore /deny "Administrators:(R,REA,RA))"
- '%WINDIR%\syswow64\cmd.exe' /c icacls %PROGRAMDATA%\IntelCore /deny "Users:(R,REA,RA)"
- '%WINDIR%\syswow64\cmd.exe' /c icacls %PROGRAMDATA%\IntelCore /deny "%username%:(R,REA,RA)"
- '%WINDIR%\syswow64\icacls.exe' %PROGRAMDATA%\SystemNetwork /deny "Administrators:(R,REA,RA))"
- '%WINDIR%\syswow64\icacls.exe' %PROGRAMDATA%\SystemNetwork /deny "Users:(R,REA,RA)"
- '%WINDIR%\syswow64\icacls.exe' %PROGRAMDATA%\SystemNetwork /deny "user:(R,REA,RA)"
- '%WINDIR%\syswow64\icacls.exe' %PROGRAMDATA%\IntelCore /deny "Users:(R,REA,RA)"
- '%WINDIR%\syswow64\cmd.exe' /c icacls %PROGRAMDATA%\SystemNetwork /deny "Administrators:(R,REA,RA))"
- '%WINDIR%\syswow64\cmd.exe' /c icacls %PROGRAMDATA%\SystemNetwork /deny "%username%:(R,REA,RA)"
- '%WINDIR%\syswow64\wbem\wmic.exe' path win32_VideoController get name
- '%WINDIR%\syswow64\cmd.exe' /c wmic path win32_VideoController get name >%PROGRAMDATA%\SystemNetwork\video.txt
- '%WINDIR%\syswow64\wbem\wmic.exe' OS get osarchitecture
- '%WINDIR%\syswow64\cmd.exe' /c WMIC OS get osarchitecture >%PROGRAMDATA%\SystemNetwork\arch.txt
- '%WINDIR%\syswow64\ping.exe' -n 5 localhost
- '%WINDIR%\syswow64\cmd.exe' /k ping -n 5 localhost < nul & del /F /Q "<Full path to file>"
- '%WINDIR%\syswow64\cmd.exe' /c icacls %PROGRAMDATA%\SystemNetwork /deny "Users:(R,REA,RA)"
- '%WINDIR%\syswow64\icacls.exe' %PROGRAMDATA%\IntelCore /deny "user:(R,REA,RA)"
