Technical Information
To ensure autorun and distribution
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\MsRkNrL] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\MsRkNrL] 'ImagePath' = '<SYSTEM32>\wscript.exe //B "C:\autoexec.vbs"'
Creates the following services
- 'MsRkNrL' <SYSTEM32>\wscript.exe //B "C:\autoexec.vbs"
Creates the following files on removable media
- <Drive name for removable media>:\recycl\dm6331.tmp
- <Drive name for removable media>:\recycl\rkrl.vbs
- <Drive name for removable media>:\recycl\rknrl.tmp1
- <Drive name for removable media>:\recycl\rknrl.tmp2
Malicious functions
Creates and executes the following (exploit)
- '<SYSTEM32>\wscript.exe' //B "%TEMP%\rknrl.vbs"
Modifies file system
Creates the following files
- %TEMP%\dm6331.tmp
- %WINDIR%\temp\winstart\nvrtc-builtins64_101.dll
- %WINDIR%\temp\winstart\nvrtc64_101_0.dll
- %WINDIR%\temp\winstart\myminer.exe
- %ProgramFiles%\microsoft office\office14\book.xls
- %ProgramFiles%\microsoft office\office14\normal.doc
- %TEMP%\rknrl.tmp2
- %TEMP%\rknrl.tmp1
- C:\dm6331.tmp
- C:\autoexec.vbs
- %TEMP%\rad6067f.tmp
- %TEMP%\chrome.exe
- %TEMP%\rade5707.tmp
- %TEMP%\radca218.tmp
- %TEMP%\radc8a68.tmp
- %TEMP%\rad0f181.tmp
- %TEMP%\rad0f6b3.tmp
- %TEMP%\rad50e6f.tmp
- %TEMP%\rad97034.tmp
- %TEMP%\rad6b70f.tmp
- %TEMP%\rada4324.tmp
- %TEMP%\radba67d.tmp
- %TEMP%\winstart.vbs
- %TEMP%\rknrl.vbs
- %WINDIR%\temp\winstart\xmrig-cuda.dll
- %WINDIR%\temp\winstart\config.json
Sets the 'hidden' attribute to the following files
- C:\autoexec.vbs
- C:\dm6331.tmp
Deletes the following files
- %TEMP%\dm6332.tmp
Moves the following files
- from %TEMP%\radba67d.tmp to %TEMP%\dm6332.tmp
Substitutes the following files
- %TEMP%\dm6332.tmp
- %ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Microsoft Office\Microsoft Word 2010.lnk
- %ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Microsoft Office\Microsoft Excel 2010.lnk
Network activity
Connects to
- 'ap#.##herscan.io':80
- 'ai########ill.aigoingtokill.club':80
- 'm.#####ngtokill.club':80
- 'po##.##goingtokill.club':7777
TCP
HTTP GET requests
- http://ap#.##herscan.io/api?mo#############################################################################
- http://ai########ill.aigoingtokill.club/ctrl/playback.php
- http://ai########ill.aigoingtokill.club/ctrl/file/DM6331.TMP
- http://ai########ill.aigoingtokill.club/ctrl/file/rknrl.vbs
- http://m.#####ngtokill.club/ctrl/winconsole.exe
- http://ai########ill.aigoingtokill.club/ctrl/pool.txt
- http://ai########ill.aigoingtokill.club/ctrl/Normal.doc
- http://ai########ill.aigoingtokill.club/ctrl/file/n.tmp
- http://ai########ill.aigoingtokill.club/ctrl/Book.xls
- http://ai########ill.aigoingtokill.club/ctrl/file/b.tmp
- http://ai########ill.aigoingtokill.club/ctrl/url.html
Other
- 'ai########ill.aigoingtokill.club':7777
UDP
- DNS ASK ap#.##herscan.io
- DNS ASK ai########ill.aigoingtokill.club
- DNS ASK m.#####ngtokill.club
- DNS ASK po##.##goingtokill.club
Miscellaneous
Searches for the following windows
- ClassName: 'EDIT' WindowName: ''
Creates and executes the following
- '<SYSTEM32>\wscript.exe' //B "%TEMP%\winstart.vbs"
- '%WINDIR%\temp\winstart\miner.exe'
- '%WINDIR%\temp\winstart\myminer.exe' -c config.json --cpu-max-threads-hint=50
- '<SYSTEM32>\wscript.exe' //B "%TEMP%\rknrl.vbs"' (with hidden window)
