Adware.Wajam.440

To ensure autorun and distribution

Creates or modifies the following files

Sets the following service settings

[<HKLM>\System\CurrentControlSet\Services\--] 'ImagePath' = '<Full path to file> /wl 1'
[<HKLM>\System\CurrentControlSet\Services\adcd904f40e47a225a728ab2eb4531a7] 'Start' = '00000001'
[<HKLM>\System\CurrentControlSet\Services\adcd904f40e47a225a728ab2eb4531a7] 'ImagePath' = '<DRIVERS>\adcd904f40e47a225a728ab2eb4531a7.sys'
[<HKLM>\System\CurrentControlSet\Services\0c2b5b510213348d0eee1efdf69a85b7] 'ImagePath' = '"%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\de562448b2bc8d5edb9c13f7b2448846.exe"'
[<HKLM>\System\CurrentControlSet\Services\0c2b5b510213348d0eee1efdf69a85b7] 'Start' = '00000002'

Creates the following services

'--' <Full path to file> /wl 1
'adcd904f40e47a225a728ab2eb4531a7' <DRIVERS>\adcd904f40e47a225a728ab2eb4531a7.sys
'0c2b5b510213348d0eee1efdf69a85b7' "%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\de562448b2bc8d5edb9c13f7b2448846.exe"
'0c2b5b510213348d0eee1efdf69a85b7' %ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\de562448b2bc8d5edb9c13f7b2448846.exe

Malicious functions

To complicate detection of its presence in the operating system,

adds antivirus exclusion with following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths] '%WINDIR%\uninstaller.dat' = '00000000'
[<HKLM>\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths] '%WINDIR%\6154e993c2d115565c45015a58e5cc8f.exe' = '00000000'
[<HKLM>\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths] '<DRIVERS>\adcd904f40e47a225a728ab2eb4531a7.sys' = '00000000'
[<HKLM>\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths] '%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7' = '00000000'
[<HKLM>\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths] '%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\' = '00000000'

Modifies file system

Creates the following files

%TEMP%\nsmec23.tmp
%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\f67ac4d708c60d5babc601484e69db01.exe
%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\service.dat
%WINDIR%\temp\udd48c2.tmp
%WINDIR%\temp\wjm9175.tmp
%WINDIR%\syswow64\ssl\cert.db
%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\de562448b2bc8d5edb9c13f7b2448846.exe
%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\service_64.dat
%WINDIR%\syswow64\ssl\2b53f794bb4629d2 2.cer
%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\6154e993c2d115565c45015a58e5cc8f.exe
%WINDIR%\6154e993c2d115565c45015a58e5cc8f.exe
%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\wbe_uninstall.dat
%WINDIR%\uninstaller.dat
%TEMP%\c259.tmp
ctrlsmadcd904f40e47a225a728ab2eb4531a7
%ProgramFiles(x86)%\pidgin\ca-certs\2b53f794bb4629d2 2.pem
<DRIVERS>\adcd904f40e47a225a728ab2eb4531a7.sys
%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\cce4cbb49f5a105902e44dd059774f15
%TEMP%\nscec34.tmp\simplesc.dll
%TEMP%\nscec34.tmp\md5dll.dll
%TEMP%\nscec34.tmp\brh.dat
%TEMP%\nscec34.tmp\nsexec.dll
%WINDIR%\temp\nsr760.tmp
%WINDIR%\temp\nsh771.tmp\system.dll
%WINDIR%\temp\nsh771.tmp\md5dll.dll
%TEMP%\nscec34.tmp\system.dll
%WINDIR%\temp\nsh771.tmp\brh.dat
%TEMP%\nscec34.tmp\brh.dll
%TEMP%\nscec34.tmp\ipconfig.dll
%TEMP%\nscec34.tmp\inetc.dll
%TEMP%\nscec34.tmp\moreinfo.dll
%TEMP%\nscec34.tmp\nsislist.dll
%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\133b1f1aae5c2e6a64f5c3b69bdb566e.ico
%WINDIR%\temp\nsh771.tmp\brh.dll
%TEMP%\c4aa.tmp
%TEMP%\c4aa.tmp-shm

Deletes the following files

Modifies the following files

Network activity

Connects to

TCP

HTTP GET requests

http://te######gietravassac.com/installer/getTimestamp
http://te######gietravassac.com/installer/start?v=###############################################################################################################################################...
http://te######gietravassac.com/web/log?ev#######################################################################################################################################################...
http://te######gietravassac.com/installer/logging?ev#############################################################################################################################################...
http://te######gietravassac.com/installer/progress?se############################################################################################################################################...
http://te######gietravassac.com/browserenhancer/update?v=########################################################################################################################################...
http://te######gietravassac.com/addon/mapping?v=###############################################################################################################################################

HTTP POST requests

http://te######gietravassac.com/installer/downloadsLog?un##########################################################

UDP

Miscellaneous

Adds a root certificate

Searches for the following windows

Creates and executes the following

'%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\de562448b2bc8d5edb9c13f7b2448846.exe' --install
'%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\de562448b2bc8d5edb9c13f7b2448846.exe'
'%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\de562448b2bc8d5edb9c13f7b2448846.exe' --install_ff_cert
'%WINDIR%\syswow64\sc.exe' create -- binPath= ""<Full path to file>" /wl 1"' (with hidden window)
'%WINDIR%\syswow64\net.exe' start --' (with hidden window)
'%WINDIR%\syswow64\sc.exe' delete --' (with hidden window)
'%WINDIR%\syswow64\sc.exe' create adcd904f40e47a225a728ab2eb4531a7 binpath= <DRIVERS>\adcd904f40e47a225a728ab2eb4531a7.sys DisplayName= adcd904f40e47a225a728ab2eb4531a7 type= kernel start= system group= PNP_TDI' (with hidden window)
'%WINDIR%\syswow64\sc.exe' start adcd904f40e47a225a728ab2eb4531a7' (with hidden window)
'%ProgramFiles%\0c2b5b510213348d0eee1efdf69a85b7\de562448b2bc8d5edb9c13f7b2448846.exe' --install' (with hidden window)
'%WINDIR%\syswow64\sc.exe' failure 0c2b5b510213348d0eee1efdf69a85b7 reset= 60 actions= restart/5000/restart/5000/restart/5000' (with hidden window)

Executes the following

'%WINDIR%\syswow64\sc.exe' create -- binPath= ""<Full path to file>" /wl 1"
'%WINDIR%\syswow64\net.exe' start --
'%WINDIR%\syswow64\net1.exe' start --
'%WINDIR%\syswow64\sc.exe' delete --
'%WINDIR%\syswow64\sc.exe' create adcd904f40e47a225a728ab2eb4531a7 binpath= <DRIVERS>\adcd904f40e47a225a728ab2eb4531a7.sys DisplayName= adcd904f40e47a225a728ab2eb4531a7 type= kernel start= system group= PNP_TDI
'%WINDIR%\syswow64\sc.exe' start adcd904f40e47a225a728ab2eb4531a7
'%WINDIR%\syswow64\schtasks.exe' /CREATE /SC ONSTART /TN 0c2b5b510213348d0eee1efdf69a85b7 /TR "sc start 0c2b5b510213348d0eee1efdf69a85b7" /RU SYSTEM /F
'%WINDIR%\syswow64\sc.exe' failure 0c2b5b510213348d0eee1efdf69a85b7 reset= 60 actions= restart/5000/restart/5000/restart/5000