Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'MaxLoonaFest131' = '%LOCALAPPDATA%\MaxLoonaFest131\MaxLoonaFest131.exe'
Creates or modifies the following files
- <SYSTEM32>\tasks\firefox default browser agent 925e737427e6e170
- %APPDATA%\microsoft\windows\start menu\programs\startup\fanbooster131.lnk
- <SYSTEM32>\tasks\officetrackernmp131 hr
- <SYSTEM32>\tasks\officetrackernmp131 lg
Malicious functions
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Defender
adds antivirus exclusion with following registry keys:
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects\{789E444D-8F0D-4EC7-831B-92E35026D471}Machine\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions] 'exe' = ''
- [HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions] 'exe' = ''
Reads files which store third party applications passwords
- %APPDATA%\mozilla\firefox\profiles.ini
- %APPDATA%\mozilla\firefox\profiles\yfwt7ezn.default-release-1\signons.sqlite
- %LOCALAPPDATA%\google\chrome\user data\default\login data
- %APPDATA%\mozilla\firefox\profiles\bcjnbgva.default\signons.sqlite
- %LOCALAPPDATA%\google\chrome\user data\default\web data
- %APPDATA%\mozilla\firefox\profiles\0j9e9tku.default-release\signons.sqlite
- %LOCALAPPDATA%\google\chrome\user data\default\cookies
- %APPDATA%\thunderbird\profiles.ini
- %APPDATA%\thunderbird\profiles\49zr3fqa.default\signons.sqlite
- %APPDATA%\thunderbird\profiles\npsdfqy3.default-release\signons.sqlite
Modifies file system
Creates the following files
- %APPDATA%\sbbrtvs
- %TEMP%\posterboxrwgsseyqzfzs_\5lop_s5wm5erplaces.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\5lop_s5wm5ercookies
- %TEMP%\posterboxrwgsseyqzfzs_\iwpfiaxutjtshistory
- %TEMP%\posterboxrwgsseyqzfzs_\oopemfmu_xsjplaces.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\iwpfiaxutjtscookies.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\qdx9itdlycrbcookies.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\kvhrxj77cmugplaces.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\02zdbxl47cvzformhistory.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\3b6n2xdh3cywformhistory.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\jx0oqi4nztiqplaces.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\2jqjv37ij0lzcookies.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\pse1jchbit9aplaces.sqlite
- %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\policy.vpol
- %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\3ccd5499-87a8-4b10-a215-608888dd3b55.vsch
- %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\2f1a6504-0641-44cf-8bb5-3612d865f2e5.vsch
- %LOCALAPPDATA%\microsoft\vault\4bf4c442-9b8a-41a0-b380-dd4a704ddb28\policy.vpol
- %TEMP%\granduiarwgsseyqzfzs_\passwords.txt
- %TEMP%\posterboxrwgsseyqzfzs_\suorww4zcubjformhistory.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\l6w3nvxsgpmdplaces.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\3b6n2xdh3cywweb data
- %TEMP%\posterboxrwgsseyqzfzs_\02zdbxl47cvzhistory
- %TEMP%\posterboxrwgsseyqzfzs_\d87fzn3r3jfeweb data
- %TEMP%\40d7.exe
- %TEMP%\ixp000.tmp\kf9sa98.exe
- %TEMP%\ixp000.tmp\6ds5ix0.exe
- %TEMP%\ixp001.tmp\dv0wv15.exe
- %TEMP%\ixp001.tmp\5ww6lk0.exe
- %TEMP%\ixp002.tmp\qh9ad24.exe
- %TEMP%\ixp002.tmp\4vz735gi.exe
- %TEMP%\ixp003.tmp\1eo89jk4.exe
- %TEMP%\3429.exe
- %TEMP%\ixp003.tmp\3gl90cm.exe
- <SYSTEM32>\grouppolicy\machine\registry.pol
- <SYSTEM32>\grouppolicy\gpt.ini
- %LOCALAPPDATA%\maxloonafest131\maxloonafest131.exe
- %TEMP%\fanbooster131\fanbooster131.exe
- %ALLUSERSPROFILE%\officetrackernmp131\officetrackernmp131.exe
- %ALLUSERSPROFILE%\ntuser.pol
- %TEMP%\rise131m9asphalt.tmp
- %TEMP%\posterboxrwgsseyqzfzs_\ei8dramayu9klogin data
- %WINDIR%\syswow64\grouppolicy\gpt.ini
- %TEMP%\granduiarwgsseyqzfzs_\information.txt
- %TEMP%\wt4mdstencixeuvttuvxfaybuicut1bm.zip
Sets the 'hidden' attribute to the following files
- %APPDATA%\sbbrtvs
Deletes the following files
- %TEMP%\posterboxrwgsseyqzfzs_\ei8dramayu9klogin data
- %TEMP%\wt4mdstencixeuvttuvxfaybuicut1bm.zip
- %TEMP%\posterboxrwgsseyqzfzs_\pse1jchbit9aplaces.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\2jqjv37ij0lzcookies.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\l6w3nvxsgpmdplaces.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\suorww4zcubjformhistory.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\jx0oqi4nztiqplaces.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\kvhrxj77cmugplaces.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\qdx9itdlycrbcookies.sqlite
- %TEMP%\granduiarwgsseyqzfzs_\information.txt
- %TEMP%\posterboxrwgsseyqzfzs_\iwpfiaxutjtscookies.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\5lop_s5wm5erplaces.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\iwpfiaxutjtshistory
- %TEMP%\posterboxrwgsseyqzfzs_\5lop_s5wm5ercookies
- %TEMP%\posterboxrwgsseyqzfzs_\3b6n2xdh3cywformhistory.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\3b6n2xdh3cywweb data
- %TEMP%\posterboxrwgsseyqzfzs_\02zdbxl47cvzformhistory.sqlite
- %TEMP%\posterboxrwgsseyqzfzs_\02zdbxl47cvzhistory
- %TEMP%\posterboxrwgsseyqzfzs_\d87fzn3r3jfeweb data
- %TEMP%\posterboxrwgsseyqzfzs_\oopemfmu_xsjplaces.sqlite
- %TEMP%\granduiarwgsseyqzfzs_\passwords.txt
Deletes itself.
Network activity
Connects to
- 'ho####ost-file8.com':80
- '18#.#96.8.238':80
- '10#.#07.182.45':80
- '19#.#33.132.51':50500
- 'ip##fo.io':443
- 'db##p.com':443
- 'ma##ind.com':80
TCP
HTTP GET requests
- http://18#.#96.8.238/Mifld.exe
- http://10#.#07.182.45/red/line.exe
- http://www.ma##ind.com/geoip/v2.1/city/me
HTTP POST requests
- http://ho####ost-file8.com/
Other
- '19#.#33.132.51':50500
- 'ip##fo.io':443
- 'db##p.com':443
UDP
- DNS ASK ho####ile-host6.com
- DNS ASK ho####ost-file8.com
- DNS ASK ip##fo.io
- DNS ASK db##p.com
- DNS ASK ma##ind.com
Miscellaneous
Creates and executes the following
- '%TEMP%\3429.exe'
- '%TEMP%\40d7.exe'
- '%TEMP%\ixp000.tmp\kf9sa98.exe'
- '%TEMP%\ixp001.tmp\dv0wv15.exe'
- '%TEMP%\ixp002.tmp\qh9ad24.exe'
- '%TEMP%\ixp003.tmp\1eo89jk4.exe'
- '%APPDATA%\sbbrtvs'
- '%TEMP%\ixp000.tmp\kf9sa98.exe' ' (with hidden window)
- '%TEMP%\ixp001.tmp\dv0wv15.exe' ' (with hidden window)
- '%TEMP%\ixp002.tmp\qh9ad24.exe' ' (with hidden window)
- '%TEMP%\ixp003.tmp\1eo89jk4.exe' ' (with hidden window)
- '%APPDATA%\sbbrtvs' ' (with hidden window)
Restarts the analyzed sample
Executes the following
- '%WINDIR%\syswow64\schtasks.exe' /create /f /RU "user" /tr "%ALLUSERSPROFILE%\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
- '%WINDIR%\syswow64\schtasks.exe' /create /f /RU "user" /tr "%ALLUSERSPROFILE%\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
- '<SYSTEM32>\svchost.exe' -k secsvcs
- '<SYSTEM32>\raserver.exe' /offerraupdate
- '<SYSTEM32>\taskeng.exe' {0188F692-C972-4C6E-8C3E-B5F122BB8C75} S-1-5-21-1238866942-1249195528-555854008-1000:pktukizxv\user:Interactive:[1]
