Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'SysHelper' = '"%LOCALAPPDATA%\4575c98b-fe31-424b-8712-758e7b140b94\E70B.tmp.exe" --AutoStart'
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\twhgburh.lnk
- <SYSTEM32>\tasks\opera scheduled autoupdate 711520318
- <SYSTEM32>\tasks\time trigger task
Creates the following services
- [<HKLM>\System\CurrentControlSet\Services\nazmcmff] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\nazmcmff] 'ImagePath' = '%WINDIR%\SysWOW64\nazmcmff\jawdutxb.exe /d"%TEMP%\F843.tmp.exe"'
Malicious functions
Executes the following
- '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul
Modifies file system
Creates the following files
- %APPDATA%\microsoft\windows\twhgburh\whvwgtdw.exe
- %TEMP%\config.ini
- %TEMP%\b8a9.tmp.exe
- %LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\index.dat
- %APPDATA%\microsoft\windows\cookies\low\index.dat
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\pig39t5x\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\a5c4m2yz\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\v92wv4zy\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\cqzx2659\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
- %TEMP%\logo.gif
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\desktop.ini
- %TEMP%\is-im943.tmp\directultramediaburner.exe.config
- %TEMP%\is-im943.tmp\idp.dll
- %TEMP%\is-im943.tmp\_isetup\_shfoldr.dll
- %TEMP%\is-im943.tmp\_isetup\_setup64.tmp
- %TEMP%\is-bbmi1.tmp\f19.tmp.tmp
- %TEMP%\f19.tmp.exe
- %TEMP%\489.tmp.exe
- %TEMP%\jawdutxb.exe
- %TEMP%\f843.tmp.exe
- %LOCALAPPDATA%\4575c98b-fe31-424b-8712-758e7b140b94\e70b.tmp.exe
- %TEMP%\eefb.tmp.exe
- %TEMP%\e70b.tmp.exe
- %TEMP%\1da1.tmp.exe
- %APPDATA%\mozilla\firefox\profiles\gn7ryp~1.def\cookies.sqlite-shm
Sets the 'hidden' attribute to the following files
- %APPDATA%\microsoft\windows\twhgburh\whvwgtdw.exe
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\cqzx2659\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\v92wv4zy\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\a5c4m2yz\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\pig39t5x\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\desktop.ini
- %LOCALAPPDATA%\microsoft\windows\history\low\desktop.ini
Deletes the following files
- %TEMP%\is-im943.tmp\directultramediaburner.exe.config
- %TEMP%\is-im943.tmp\idp.dll
- %TEMP%\is-im943.tmp\_isetup\_setup64.tmp
- %TEMP%\is-im943.tmp\_isetup\_shfoldr.dll
- %TEMP%\is-bbmi1.tmp\f19.tmp.tmp
- <SYSTEM32>\tasks\time trigger task
Moves the following files
- from %TEMP%\jawdutxb.exe to %WINDIR%\syswow64\nazmcmff\jawdutxb.exe
Deletes itself.
Network activity
Connects to
- '35.##2.211.57':80
TCP
HTTP GET requests
- http://www.ms###csi.com/ncsi.txt
- http://37.##.127.236/2.php
- http://lo####cebook.info/promo/lload/id48923983/e2ob.exe
- http://po####.jhfddd.com/uue/hbggg.exe
- http://at#####kyday0003.top/down/id9.exe
HTTP POST requests
- http://gh###8kjhb.net/
- http://35.##2.211.57/gate/log.php
- http://cl####leankkl.net/
UDP
- DNS ASK gh###8kjhb.net
- DNS ASK cl####leankkl.net
- DNS ASK ap#.2ip.ua
- DNS ASK lo####cebook.info
- DNS ASK ul###########urner.s3.eu-west-2.amazonaws.com
- DNS ASK te##te.in
- DNS ASK po####.jhfddd.com
- DNS ASK yi#.su
- DNS ASK at#####kyday0003.top
- DNS ASK ip##pi.com
Miscellaneous
Creates and executes the following
- '%TEMP%\e70b.tmp.exe'
- '%TEMP%\b8a9.tmp.exe'
- '%TEMP%\f843.tmp.exe'
- '%TEMP%\489.tmp.exe'
- '%TEMP%\e70b.tmp.exe' --Admin IsNotAutoStart IsNotTask
- '%TEMP%\eefb.tmp.exe'
- '%TEMP%\f19.tmp.exe'
- '%TEMP%\is-bbmi1.tmp\f19.tmp.tmp' /SL5="$F01F0,146532,62464,%TEMP%\F19.tmp.exe"
- '%TEMP%\1da1.tmp.exe'
- '%WINDIR%\syswow64\nazmcmff\jawdutxb.exe' /d"%TEMP%\F843.tmp.exe"
- '%WINDIR%\syswow64\icacls.exe' "%LOCALAPPDATA%\4575c98b-fe31-424b-8712-758e7b140b94" /deny *S-1-1-0:(OI)(CI)(DE,DC)' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' description nazmcmff "wifi internet conection"' (with hidden window)
- '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' start nazmcmff' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\jawdutxb.exe" %WINDIR%\SysWOW64\nazmcmff\' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' create nazmcmff binPath= "%WINDIR%\SysWOW64\nazmcmff\jawdutxb.exe /d\"%TEMP%\F843.tmp.exe\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\nazmcmff\' (with hidden window)
- '%TEMP%\jfiag_gg.exe' /scookiestxt %TEMP%\fjgha23_fa.txt' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\icacls.exe' "%LOCALAPPDATA%\4575c98b-fe31-424b-8712-758e7b140b94" /deny *S-1-1-0:(OI)(CI)(DE,DC)
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\nazmcmff\
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\jawdutxb.exe" %WINDIR%\SysWOW64\nazmcmff\
- '%WINDIR%\syswow64\sc.exe' create nazmcmff binPath= "%WINDIR%\SysWOW64\nazmcmff\jawdutxb.exe /d\"%TEMP%\F843.tmp.exe\"" type= own start= auto DisplayName= "wifi support"
- '%WINDIR%\syswow64\rundll32.exe' "%WINDIR%\syswow64\WININET.dll",DispatchAPICall 1
- '%WINDIR%\syswow64\sc.exe' description nazmcmff "wifi internet conection"
- '%WINDIR%\syswow64\sc.exe' start nazmcmff
- '<SYSTEM32>\taskeng.exe' {6EE64C4C-460A-4528-8AAA-9A7513DAB473} S-1-5-21-1960123792-2022915161-3775307078-1001:lcnowhbtv\user:Interactive:[1]
