Function at 0x421b90
Capabilities:
Check mutex on windows
Contain obfuscated stackstrings
Hide graphical window

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x4c
push esi
mov ecx, 0x510d4f
call fcn.004b7c9d
mov esi, dword [ebp + 0x10]
lea ecx, [ebp - 0xc]
push esi
call fcn.00403b70
mov dword [ebp - 0x4c], 0
mov dword [ebp - 0x48], 0
mov byte [ebp - 0x44], 1
call fcn.004059f0
mov ecx, eax
test ecx, ecx
je 0x421ee7
mov eax, dword [ecx]
push edi
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x3c], 0
push esi
lea ecx, [ebp + 0x10]
mov dword [ebp - 0x40], eax
call fcn.00403b70
lea eax, [ebp - 0x4c]
push eax
lea eax, [ebp + 0x10]
push eax
call fcn.0040f3d0
mov edx, dword [ebp + 0x10]
or edi, 0xffffffff
add esp, 8
add edx, 0xfffffff0
mov eax, edi
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x421c17
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
push ebx
lea eax, [ebp + 0x13]
mov dword [ebp - 0x38], 0x430047
push eax
lea ecx, [ebp - 0x24]
mov dword [ebp - 0x34], 0x61004d
push ecx
lea edx, [ebp - 0x38]
mov dword [ebp - 0x30], 0x6e0069
push edx
lea ecx, [ebp - 0x18]
mov dword [ebp - 0x2c], 0x6e0057
mov dword [ebp - 0x28], 0x64
call fcn.00403f10
lea ecx, [ebp - 4]
push dword [eax]
call fcn.00403b70
lea ecx, [ebp - 0x18]
call fcn.0040c550
lea eax, [ebp + 0x13]
mov dword [ebp - 0x34], 0x6c0047
push eax
lea ecx, [ebp - 0x24]
mov dword [ebp - 0x30], 0x62006f
push ecx
lea edx, [ebp - 0x34]
mov dword [ebp - 0x2c], 0x6c0061
push edx
lea ecx, [ebp - 0x18]
mov dword [ebp - 0x28], 0x5c
call fcn.00403f10
lea ecx, [ebp - 8]
push dword [eax]
call fcn.00403b70
lea ecx, [ebp - 0x18]
call fcn.0040c550
cmp byte [ebp - 0x4b], 0
jne 0x421dc6
cmp byte [ebp - 0x45], 0
jne 0x421d55
lea eax, [ebp - 4]
push eax
lea eax, [ebp - 8]
push eax
lea eax, [ebp + 0x10]
push eax
call fcn.00404310
add esp, 0xc
push dword [eax]
push 0
push 0
call dword [sym.imp.KERNEL32.dll_CreateMutexW]
mov edx, dword [ebp + 0x10]
mov esi, eax
add edx, 0xfffffff0
mov ecx, edi
lock xadd dword [edx + 0xc], ecx
dec ecx
test ecx, ecx
jg 0x421cf3
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 0xb7
je 0x421d08
test esi, esi
jne 0x421d9a
push dword [ebp - 4]
push 0
call dword [sym.imp.USER32.dll_FindWindowW]
mov ebx, eax
test ebx, ebx
je 0x421dbc
cmp byte [ebp - 0x4a], 0
jne 0x421dbc
mov esi, dword [sym.imp.USER32.dll_SendMessageW]
push 0
push 0xf020
push 0x112
push ebx
call esi
push 0
push 0xf120
push 0x112
push ebx
call esi
mov esi, 3
jmp 0x421e76
push 0x1f4
call dword [sym.imp.KERNEL32.dll_Sleep]
lea eax, [ebp - 4]
push eax
lea eax, [ebp - 8]
push eax
lea eax, [ebp + 0x10]
push eax
call fcn.00404310
add esp, 0xc
push dword [eax]
push 0
push 0
call dword [sym.imp.KERNEL32.dll_CreateMutexW]
mov edx, dword [ebp + 0x10]
mov eax, edi
add edx, 0xfffffff0
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x421d9a
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
cmp byte [ebp - 0x4b], 0
jne 0x421dc6
cmp byte [ebp - 0x4a], 0
jne 0x421dc6
cmp byte [ebp - 0x45], 0
jne 0x421dc6
lea eax, [ebp - 0x4c]
push eax
call fcn.00411200
add esp, 4
test al, al
jne 0x421dc6
mov esi, 3
jmp 0x421e76
mov ebx, dword [ebp + 8]
push ebx
call fcn.0042fa60
add esp, 4
call fcn.00421a00
lea ecx, [ebp - 0x24]
call fcn.00423cb0
push 2
lea ecx, [ebp - 0x24]
call fcn.004243b0
push 0x7d8
call fcn.004b7cf2
add esp, 4
test eax, eax
je 0x421e09
lea ecx, [ebp - 0x4c]
push ecx
mov ecx, eax
call fcn.0041d930
mov esi, eax
jmp 0x421e0b
xor esi, esi
cmp byte [ebp - 0x4a], 0
mov ecx, esi
jne 0x421e6e
push 0
push 0
push 0
push 0
push 0xfffffc18
push 0
push 0x96ca0000
push dword [ebp - 4]
push 0
call fcn.00430cd0
push 0x6b
push ebx
call dword [sym.imp.USER32.dll_LoadIconW]
push eax
push 1
push 0x80
mov ecx, esi
call fcn.00422e90
push eax
call dword [sym.imp.USER32.dll_SendMessageW]
mov ecx, esi
call fcn.00430ad0
push 5
mov ecx, esi
call fcn.00422e90
push eax
call dword [sym.imp.USER32.dll_ShowWindow]
call fcn.0042c8d0
jmp 0x421e73
call fcn.0041f5d0
mov esi, dword [ebp - 0x3c]
mov edx, dword [ebp - 8]
mov eax, edi
add edx, 0xfffffff0
lock xadd dword [edx + 0xc], eax
dec eax
pop ebx
test eax, eax
jg 0x421e91
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
mov edx, dword [ebp - 4]
mov eax, edi
add edx, 0xfffffff0
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x421eab
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
mov edx, dword [ebp - 0x40]
mov eax, edi
add edx, 0xfffffff0
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x421ec5
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
mov eax, dword [ebp - 0xc]
add eax, 0xfffffff0
lock xadd dword [eax + 0xc], edi
dec edi
test edi, edi
pop edi
jg 0x421ede
mov ecx, dword [eax]
push eax
mov edx, dword [ecx]
call dword [edx + 4]
mov eax, esi
pop esi
mov esp, ebp
pop ebp
ret 0x10
push 0x80004005
call fcn.004048a0
int3