Function at 0x10021045
Capabilities:
Write file on windows

Disassembly:
mov edi, edi
push ebp
mov ebp, esp
sub esp, 0x30
mov edx, dword [ebp + 0x10]
mov ecx, dword [ebp + 8]
mov eax, dword [ebp + 0xc]
mov dword [ebp - 0x10], ecx
mov dword [ebp - 8], eax
mov dword [ebp - 0xc], edx
push ebx
mov ebx, dword [ebp + 0x14]
push esi
push edi
test edx, edx
je 0x1002125a
test eax, eax
jne 0x1002109b
xor eax, eax
mov byte [ebx + 0x24], 1
push ebx
push eax
push eax
push eax
mov dword [ebx + 0x20], eax
push eax
mov byte [ebx + 0x1c], 1
push eax
mov dword [ebx + 0x18], 0x16
call fcn.1001cb3b
add esp, 0x18
or eax, 0xffffffff
jmp 0x1002125c
mov eax, ecx
mov esi, ecx
and eax, 0x3f
sar esi, 6
imul edi, eax, 0x38
mov dword [ebp - 0x14], esi
mov eax, dword [esi*4 + 0x100331f8]
mov dword [ebp - 0x18], edi
mov al, byte [edi + eax + 0x29]
mov byte [ebp - 1], al
cmp al, 2
je 0x100210c4
cmp al, 1
jne 0x100210cc
mov eax, edx
not eax
test al, 1
je 0x10021071
mov edx, dword [ebp - 0x14]
xor esi, esi
mov eax, dword [edx*4 + 0x100331f8]
test byte [edi + eax + 0x28], 0x20
je 0x100210f0
push ebx
push 2
push esi
push esi
push ecx
call fcn.1002188a
mov ecx, dword [ebp - 0x10]
add esp, 0x14
push ebx
mov edi, esi
push ecx
mov dword [ebp - 0x24], edi
call fcn.10020bc1
pop ecx
pop ecx
test al, al
je 0x10021149
movsx eax, byte [ebp - 1]
sub eax, esi
je 0x10021131
sub eax, 1
je 0x10021118
sub eax, 1
jne 0x100211f2
push dword [ebp - 0xc]
lea eax, [ebp - 0x30]
push dword [ebp - 8]
push eax
call fcn.10020b59
add esp, 0xc
mov esi, eax
jmp 0x100211e0
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x30]
push dword [ebp - 8]
push dword [ebp - 0x10]
push eax
call fcn.10020792
add esp, 0x14
jmp 0x1002112a
mov edx, dword [ebp - 0x14]
mov ecx, dword [ebp - 0x18]
mov eax, dword [edx*4 + 0x100331f8]
cmp byte [eax + ecx + 0x28], 0
jge 0x100211b2
movsx eax, byte [ebp - 1]
sub eax, esi
je 0x1002119e
sub eax, 1
je 0x1002118a
sub eax, 1
jne 0x100211f8
push dword [ebp - 0xc]
lea eax, [ebp - 0x30]
push dword [ebp - 8]
push dword [ebp - 0x10]
push eax
call fcn.10020d19
add esp, 0x10
jmp 0x1002112a
push dword [ebp - 0xc]
lea eax, [ebp - 0x30]
push dword [ebp - 8]
push dword [ebp - 0x10]
push eax
call fcn.10020e02
jmp 0x10021185
push dword [ebp - 0xc]
lea eax, [ebp - 0x30]
push dword [ebp - 8]
push dword [ebp - 0x10]
push eax
call fcn.10020c3e
jmp 0x10021185
mov ecx, dword [eax + ecx + 0x18]
lea edi, [ebp - 0x30]
xor eax, eax
stosd dword es:[edi], eax
push esi
stosd dword es:[edi], eax
stosd dword es:[edi], eax
lea eax, [ebp - 0x2c]
push eax
push dword [ebp - 0xc]
push dword [ebp - 8]
push ecx
call dword [sym.imp.KERNEL32.dll_WriteFile]
test eax, eax
jne 0x100211dd
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov dword [ebp - 0x30], eax
lea esi, [ebp - 0x30]
lea edi, [ebp - 0x24]
movsd dword es:[edi], dword [esi]
movsd dword es:[edi], dword [esi]
movsd dword es:[edi], dword [esi]
mov eax, dword [ebp - 0x20]
test eax, eax
jne 0x10021255
mov edi, dword [ebp - 0x24]
xor esi, esi
mov edx, dword [ebp - 0x14]
mov ecx, dword [ebp - 0x18]
test edi, edi
je 0x10021228
push 5
pop eax
cmp edi, eax
jne 0x1002121a
mov byte [ebx + 0x1c], 1
mov dword [ebx + 0x18], 9
mov byte [ebx + 0x24], 1
mov dword [ebx + 0x20], eax
jmp 0x10021093
push ebx
push edi
call fcn.1001cc62
pop ecx
pop ecx
jmp 0x10021093
mov eax, dword [edx*4 + 0x100331f8]
test byte [eax + ecx + 0x28], 0x40
je 0x1002123e
mov eax, dword [ebp - 8]
cmp byte [eax], 0x1a
je 0x1002125a
mov byte [ebx + 0x1c], 1
mov dword [ebx + 0x18], 0x1c
mov byte [ebx + 0x24], 1
mov dword [ebx + 0x20], esi
jmp 0x10021093
sub eax, dword [ebp - 0x1c]
jmp 0x1002125c
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret