Function at 0x43ca8b
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x38
push ebx
xor ebx, ebx
test byte [ebp + 0x10], 0x80
push esi
push edi
mov esi, eax
mov dword [ebp - 0x24], ebx
mov dword [ebp - 0x28], ebx
mov byte [ebp - 2], bl
mov dword [ebp - 0x38], 0xc
mov dword [ebp - 0x34], ebx
je 0x43caba
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x43cac4
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00440833
test eax, eax
pop ecx
je 0x43cadf
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00430577
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00434002
test eax, eax
pop ecx
je 0x43cafa
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00430577
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x43cb17
test ecx, 0x74000
jne 0x43cb13
cmp dword [ebp - 0x24], eax
je 0x43cb17
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x43cb71
dec eax
je 0x43cb5b
dec eax
je 0x43cb56
call fcn.00430944
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00430931
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00430673
add esp, 0x14
jmp 0x43d124
mov dword [ebp - 8], edx
jmp 0x43cb74
test cl, 8
je 0x43cb68
test ecx, 0x70000
jne 0x43cb56
mov dword [ebp - 8], 0x40000000
jmp 0x43cb74
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x43cbb5
sub eax, ecx
je 0x43cbac
sub eax, ecx
je 0x43cba3
sub eax, ecx
je 0x43cb9a
sub eax, 0x40
jne 0x43cb30
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x43cbb8
mov dword [ebp - 0x10], 3
jmp 0x43cbb8
mov dword [ebp - 0x10], 2
jmp 0x43cbb8
mov dword [ebp - 0x10], 1
jmp 0x43cbb8
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, pe_nt_image_headers32
jg 0x43cc0b
je 0x43cc02
cmp eax, ebx
je 0x43cc02
cmp eax, edi
je 0x43cbf9
cmp eax, 0x200
je 0x43cc7e
cmp eax, 0x300
jne 0x43cb30
mov dword [ebp - 0x14], 2
jmp 0x43cc28
mov dword [ebp - 0x14], 4
jmp 0x43cc28
mov dword [ebp - 0x14], 3
jmp 0x43cc28
cmp eax, 0x500
je 0x43cc21
cmp eax, 0x600
je 0x43cc7e
cmp eax, edx
jne 0x43cb30
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x43cc4c
mov ecx, dword [0x457248]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x43cc4c
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x43cc68
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x43cc68
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x43cc71
or dword [ebp - 0xc], edi
test al, 0x20
je 0x43cc87
or dword [ebp - 0xc], 0x8000000
jmp 0x43cc92
mov dword [ebp - 0x14], 5
jmp 0x43cc28
test al, 0x10
je 0x43cc92
or dword [ebp - 0xc], 0x10000000
call fcn.0043c629
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x43ccb8
call fcn.00430944
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00430931
mov dword [eax], 0x18
jmp 0x43cd46
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileW]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x38]
push eax
push dword [ebp - 0x10]
push dword [ebp - 8]
push dword [ebp + 0xc]
call edi
cmp eax, 0xffffffff
mov dword [ebp - 0x1c], eax
jne 0x43cd52
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x43cd1e
test byte [ebp + 0x10], 1
je 0x43cd1e
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push dword [ebp - 0x14]
push eax
push dword [ebp - 0x10]
push dword [ebp - 8]
push dword [ebp + 0xc]
call edi
cmp eax, 0xffffffff
mov dword [ebp - 0x1c], eax
jne 0x43cd52
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x457a80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00430957
pop ecx
call fcn.00430931
mov eax, dword [eax]
jmp 0x43d1e0
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x43cda3
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x457a80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00430957
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x43cd46
call fcn.00430931
mov dword [eax], 0xd
jmp 0x43cd46
cmp eax, 2
jne 0x43cdae
or byte [ebp - 1], 0x40
jmp 0x43cdb7
cmp eax, 3
jne 0x43cdb7
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0043c3f8
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x457a80]
pop ecx
pop ecx
mov cl, byte [ebp - 1]
or cl, 1
mov byte [edx + eax + 4], cl
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x457a80]
lea eax, [edx + eax + 0x24]
and byte [eax], 0x80
mov byte [ebp - 3], cl
and byte [ebp - 3], 0x48
mov byte [ebp - 1], cl
jne 0x43ce8d
test cl, 0x80
je 0x43cf5d
test byte [ebp + 0x10], 2
je 0x43ce8d
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00440705
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x43ce4b
call fcn.00430944
cmp dword [eax], 0x83
je 0x43ce8d
push dword [esi]
call fcn.00432beb
jmp 0x43cd45
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00440047
add esp, 0xc
test eax, eax
jne 0x43ce7d
cmp word [ebp - 0x2c], 0x1a
jne 0x43ce7d
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0043fe93
add esp, 0xc
cmp eax, edi
je 0x43ce3f
push ebx
push ebx
push dword [esi]
call fcn.00440705
add esp, 0xc
cmp eax, edi
je 0x43ce3f
test byte [ebp - 1], 0x80
je 0x43cf5d
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x43ceb5
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x43ceb2
or dword [ebp + 0x10], edi
jmp 0x43ceb5
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x43cf02
cmp eax, 0x10000
je 0x43ceee
cmp eax, 0x14000
je 0x43ceee
cmp eax, 0x20000
je 0x43cefc
cmp eax, 0x24000
je 0x43cefc
cmp eax, 0x40000
je 0x43cee8
cmp eax, 0x44000
jne 0x43cf05
mov byte [ebp - 2], 1
jmp 0x43cf05
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x43cf05
mov byte [ebp - 2], 2
jmp 0x43cf05
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x43cf5d
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x43cf5d
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x43d0b7
cmp eax, 0x80000000
je 0x43d07e
cmp eax, ecx
jne 0x43cf5d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x43cf5d
cmp eax, 2
jbe 0x43d15f
cmp eax, 4
jbe 0x43d050
cmp eax, 5
je 0x43d15f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x457a80]
lea eax, [ecx + eax + 0x24]
mov cl, byte [eax]
xor cl, byte [ebp - 2]
and cl, 0x7f
xor byte [eax], cl
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x457a80]
lea eax, [ecx + eax + 0x24]
mov ecx, dword [ebp + 0x10]
mov dl, byte [eax]
shr ecx, 0x10
shl cl, 7
and dl, 0x7f
or cl, dl
cmp byte [ebp - 3], bl
mov byte [eax], cl
jne 0x43cfcf
test byte [ebp + 0x10], 8
je 0x43cfcf
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x457a80]
lea eax, [ecx + eax + 4]
or byte [eax], 0x20
mov edi, dword [ebp - 8]
mov eax, 0xc0000000
mov ecx, edi
and ecx, eax
cmp ecx, eax
jne 0x43d1de
test byte [ebp + 0x10], 1
je 0x43d1de
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileW]
cmp eax, 0xffffffff
jne 0x43d1c7
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00430957
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x457a80]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0043c475
pop ecx
jmp 0x43cd45
push 2
push ebx
push ebx
push dword [esi]
call fcn.0043dca0
add esp, 0x10
or eax, edx
je 0x43d15f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0043dca0
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x43ce3f
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00440047
add esp, 0xc
cmp eax, 0xffffffff
je 0x43ce3f
cmp eax, 2
je 0x43d103
cmp eax, 3
jne 0x43d151
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x43d103
mov byte [ebp - 2], 1
jmp 0x43cf5d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x43cf5d
cmp eax, 2
jbe 0x43d15f
cmp eax, 4
ja 0x43cf54
push 2
push ebx
push ebx
push dword [esi]
call fcn.0043dca0
add esp, 0x10
or eax, edx
je 0x43d15f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0043dca0
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x43cf5d
jmp 0x43ce3f
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x43d12b
push dword [esi]
call fcn.00432beb
pop ecx
call fcn.00430931
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x43d1e0
cmp eax, 0xfeff
jne 0x43d151
push ebx
push 2
push dword [esi]
call fcn.00440705
add esp, 0xc
cmp eax, 0xffffffff
je 0x43ce3f
mov byte [ebp - 2], 2
jmp 0x43cf5d
push ebx
push ebx
push dword [esi]
call fcn.00440705
add esp, 0xc
jmp 0x43d0f5
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x43d17f
dec eax
jne 0x43cf5d
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x43d18d
mov dword [ebp - 0x18], 0xbfbbef
mov dword [ebp - 0x14], 3
mov eax, dword [ebp - 0x14]
sub eax, edi
push eax
lea eax, [ebp + edi - 0x18]
push eax
push dword [esi]
call fcn.00434a0e
add esp, 0xc
cmp eax, 0xffffffff
je 0x43d1b3
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x43d18d
jmp 0x43cf5d
push dword [esi]
call fcn.00432beb
pop ecx
call fcn.00430931
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x43d1e0
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x457a80]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret