Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- %WINDIR%\tasks\googleupdatetaskmachinecore.job
- <SYSTEM32>\tasks\googleupdatetaskmachinecore
- %WINDIR%\tasks\googleupdatetaskmachineua.job
- <SYSTEM32>\tasks\googleupdatetaskmachineua
Sets the following service settings
- [HKLM\System\CurrentControlSet\Services\gupdate] 'Start' = '00000002'
- [HKLM\System\CurrentControlSet\Services\gupdate] 'ImagePath' = '"%ProgramFiles(x86)%\Google\Update\GoogleUpdate.exe" /svc'
- [HKLM\System\CurrentControlSet\Services\gupdatem] 'ImagePath' = '"%ProgramFiles(x86)%\Google\Update\GoogleUpdate.exe" /medsvc'
Creates the following services
- 'gupdate' "%ProgramFiles(x86)%\Google\Update\GoogleUpdate.exe" /svc
- 'gupdatem' "%ProgramFiles(x86)%\Google\Update\GoogleUpdate.exe" /medsvc
Modifies file system
Creates the following files
- %TEMP%\23f4.tmp
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_gu.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_hi.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_hr.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_hu.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_id.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_fil.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_fr.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_is.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_ja.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_kn.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_ko.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_lt.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_lv.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_it.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_iw.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_fi.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_fa.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_et.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\googleupdatecomregistershell64.exe
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_am.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_ar.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_bg.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_bn.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_ca.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\googlecrashhandler64.exe
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_cs.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_de.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_el.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_en.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_en-gb.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_es.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_es-419.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_da.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_ml.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_ms.dll
- %WINDIR%\temp\tarce57.tmp
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_nl.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\googleupdatehelper.msi
- %ProgramFiles(x86)%\google\update\1.3.31.5\psuser.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\psuser_64.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\psmachine.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\psmachine_64.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_zh-cn.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_zh-tw.dll
- %ProgramFiles(x86)%\google\update\googleupdate.exe
- %ProgramFiles(x86)%\google\update\1.3.31.5\googleupdatebroker.exe
- %ProgramFiles(x86)%\google\update\1.3.31.5\googleupdateondemand.exe
- %ProgramFiles(x86)%\google\update\1.3.31.5\googleupdatewebplugin.exe
- %ALLUSERSPROFILE%\microsoft\crypto\rsa\s-1-5-18\d42cc0c3858a58db2db37658219e6400_0cb67e2f-dc95-45ca-8fb8-69bde8e3f814
- %WINDIR%\temp\cabce56.tmp
- %ProgramFiles(x86)%\google\update\1.3.31.5\googleupdatesetup.exe
- %ProgramFiles(x86)%\google\update\1.3.31.5\npgoogleupdate3.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_vi.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_ur.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_uk.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_pl.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_pt-br.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_pt-pt.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_ro.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_ru.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_sk.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_no.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_sl.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_sv.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_sw.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_ta.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_te.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_th.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_tr.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_sr.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\googlecrashhandler.exe
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdateres_mr.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\goopdate.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_hi.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_cs.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_da.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_de.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_el.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_en.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_bn.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_ca.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_en-gb.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_et.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_fa.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_fi.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_fil.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_fr.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_es.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_es-419.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_bg.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_ar.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_am.dll
- %ProgramFiles(x86)%\gum4d74.tmp\googleupdate.exe
- %ProgramFiles(x86)%\gum4d74.tmp\googlecrashhandler.exe
- %ProgramFiles(x86)%\gum4d74.tmp\goopdate.dll
- %ProgramFiles(x86)%\gum4d74.tmp\npgoogleupdate3.dll
- %ProgramFiles(x86)%\gum4d74.tmp\googleupdatehelper.msi
- %ProgramFiles(x86)%\gum4d74.tmp\googleupdatebroker.exe
- %ProgramFiles(x86)%\gut4d75.tmp
- %ProgramFiles(x86)%\gum4d74.tmp\googleupdateondemand.exe
- %ProgramFiles(x86)%\gum4d74.tmp\googleupdatewebplugin.exe
- %ProgramFiles(x86)%\gum4d74.tmp\psmachine.dll
- %ProgramFiles(x86)%\gum4d74.tmp\psmachine_64.dll
- %ProgramFiles(x86)%\gum4d74.tmp\psuser.dll
- %ProgramFiles(x86)%\gum4d74.tmp\psuser_64.dll
- %ProgramFiles(x86)%\gum4d74.tmp\googlecrashhandler64.exe
- %ProgramFiles(x86)%\gum4d74.tmp\googleupdatecomregistershell64.exe
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_gu.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_hr.dll
- %ProgramFiles(x86)%\gum4d74.tmp\googleupdatesetup.exe
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_hu.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_sl.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_sr.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_sv.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_sw.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_ta.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_ru.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_sk.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_te.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_uk.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_ur.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_vi.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_zh-cn.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_zh-tw.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_th.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_tr.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_ro.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_pt-pt.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_pt-br.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_is.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_it.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_iw.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_ja.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_kn.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_ko.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_id.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_lt.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_ml.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_mr.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_ms.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_nl.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_no.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_pl.dll
- %ProgramFiles(x86)%\gum4d74.tmp\goopdateres_lv.dll
- %ProgramFiles(x86)%\google\update\1.3.31.5\googleupdate.exe
- %TEMP%\bit26b2.tmp
Sets the 'hidden' attribute to the following files
- %TEMP%\bit26b2.tmp
Deletes the following files
- %WINDIR%\temp\cabce56.tmp
- %WINDIR%\temp\tarce57.tmp
- %TEMP%\{10d62fa7-84cf-4660-a630-8c937ec2d622}-109.0.5414.120_chrome_installer.exe
Moves the following files
- from %TEMP%\bit26b2.tmp to %TEMP%\{10d62fa7-84cf-4660-a630-8c937ec2d622}-109.0.5414.120_chrome_installer.exe
Network activity
Connects to
- 'tools.google.com':443
- 'pk#.goog':80
- 'ed####.me.gvt1.com':80
TCP
HTTP GET requests
- http://pk#.goog/gsr1/gsr1.crt
- http://ed####.me.gvt1.com/edgedl/release2/chrome/acihtkcueyye3ymoj2afvv7ulzxa_109.0.5414.120/109.0.5414.120_chrome_installer.exe
Other
- 'tools.google.com':443
UDP
- DNS ASK tools.google.com
- DNS ASK pk#.goog
- DNS ASK ed####.me.gvt1.com
Miscellaneous
Creates and executes the following
- '%TEMP%\23f4.tmp' --splash<Full path to file> 8D1EA44A96A1D381933EA7C41F39775FC0194EDB6B52664032657EBBC57981289B4D063F19FC32C2084C92ED7B46AE92D988520D048E748BF08E62D5ADFD3E9F
- '%ProgramFiles(x86)%\gum4d74.tmp\googleupdate.exe' /installsource taggedmi /install "appguid={8A69D345-D564-463C-AFF1-A69D9E530F96}&iid={ABEAF2F5-6F67-5047-E06A-AE4AC462C4FB}&lang=en&browser=4&usagestats=0&appname=Google%20Chrome&needsadmin=pre...
- '%ProgramFiles(x86)%\google\update\googleupdate.exe' /regsvc
- '%ProgramFiles(x86)%\google\update\googleupdate.exe' /regserver
- '%ProgramFiles(x86)%\google\update\1.3.31.5\googleupdatecomregistershell64.exe'
- '%ProgramFiles(x86)%\google\update\googleupdate.exe' /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB2ZXJzaW9uPSIxLjMuMzEuNSIgc2hlbGxfdmVyc2lvbj0iMS4zLjMxLjUiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7MjE1Q0VBQ0I...
- '%ProgramFiles(x86)%\google\update\googleupdate.exe' /handoff "appguid={8A69D345-D564-463C-AFF1-A69D9E530F96}&iid={ABEAF2F5-6F67-5047-E06A-AE4AC462C4FB}&lang=en&browser=4&usagestats=0&appname=Google%20Chrome&needsadmin=prefers&installdataindex=de...
- '%ProgramFiles(x86)%\google\update\googleupdate.exe' /svc
Restarts the analyzed sample
Executes the following
- '%TEMP%\23f4.tmp' --splash<Full path to file> 8D1EA44A96A1D381933EA7C41F39775FC0194EDB6B52664032657EBBC57981289B4D063F19FC32C2084C92ED7B46AE92D988520D048E748BF08E62D5ADFD3E9F' (with hidden window)
