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 9f510997f0ec2328
- %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\{4625AE7C-9E81-4728-B660-20111B9730EB}Machine\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions] 'exe' = ''
- [HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions] 'exe' = ''
Modifies file system
Creates the following files
- %APPDATA%\fdaswus
- %ALLUSERSPROFILE%\ntuser.pol
- %TEMP%\fanbooster131\fanbooster131.exe
- %LOCALAPPDATA%\maxloonafest131\maxloonafest131.exe
- <SYSTEM32>\grouppolicy\gpt.ini
- <SYSTEM32>\grouppolicy\machine\registry.pol
- %WINDIR%\syswow64\grouppolicy\gpt.ini
- %TEMP%\ixp003.tmp\3gl90cm.exe
- %ALLUSERSPROFILE%\officetrackernmp131\officetrackernmp131.exe
- %TEMP%\ixp003.tmp\1eo89jk4.exe
- %TEMP%\ixp002.tmp\qh9ad24.exe
- %TEMP%\ixp001.tmp\5ww6lk0.exe
- %TEMP%\ixp001.tmp\dv0wv15.exe
- %TEMP%\ixp000.tmp\6ds5ix0.exe
- %TEMP%\ixp000.tmp\kf9sa98.exe
- %TEMP%\e63a.exe
- %TEMP%\df08.exe
- %TEMP%\ixp002.tmp\4vz735gi.exe
- %TEMP%\rise131m9asphalt.tmp
Sets the 'hidden' attribute to the following files
- %APPDATA%\fdaswus
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
TCP
HTTP GET requests
- http://18#.#96.8.238/Mifld.exe
- http://10#.#07.182.45/red/line.exe
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
Miscellaneous
Creates and executes the following
- '%TEMP%\df08.exe'
- '%TEMP%\e63a.exe'
- '%TEMP%\ixp000.tmp\kf9sa98.exe'
- '%TEMP%\ixp001.tmp\dv0wv15.exe'
- '%TEMP%\ixp002.tmp\qh9ad24.exe'
- '%TEMP%\ixp003.tmp\1eo89jk4.exe'
- '%APPDATA%\fdaswus'
- '%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%\fdaswus' ' (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
- '<SYSTEM32>\svchost.exe' -k secsvcs
- '%WINDIR%\syswow64\schtasks.exe' /create /f /RU "user" /tr "%ALLUSERSPROFILE%\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
- '<SYSTEM32>\raserver.exe' /offerraupdate
- '<SYSTEM32>\taskeng.exe' {AA6A37C4-68D0-4BDB-B9E1-16F26879CE70} S-1-5-21-3150914307-1777937420-491476919-1000:ecfknef\user:Interactive:[1]
