Function at 0x4a12bb
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 0x4a12ea
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4a12f4
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0049c2f5
test eax, eax
pop ecx
je 0x4a130f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048a57e
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0048f14f
test eax, eax
pop ecx
je 0x4a132a
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048a57e
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4a1347
test ecx, 0x74000
jne 0x4a1343
cmp dword [ebp - 0x24], eax
je 0x4a1347
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4a13a1
dec eax
je 0x4a138b
dec eax
je 0x4a1386
call fcn.00490643
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00490630
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0048a67a
add esp, 0x14
jmp 0x4a1954
mov dword [ebp - 8], edx
jmp 0x4a13a4
test cl, 8
je 0x4a1398
test ecx, 0x70000
jne 0x4a1386
mov dword [ebp - 8], 0x40000000
jmp 0x4a13a4
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4a13e5
sub eax, ecx
je 0x4a13dc
sub eax, ecx
je 0x4a13d3
sub eax, ecx
je 0x4a13ca
sub eax, 0x40
jne 0x4a1360
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4a13e8
mov dword [ebp - 0x10], 3
jmp 0x4a13e8
mov dword [ebp - 0x10], 2
jmp 0x4a13e8
mov dword [ebp - 0x10], 1
jmp 0x4a13e8
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, 0x100
jg 0x4a143b
je 0x4a1432
cmp eax, ebx
je 0x4a1432
cmp eax, edi
je 0x4a1429
cmp eax, 0x200
je 0x4a14ae
cmp eax, 0x300
jne 0x4a1360
mov dword [ebp - 0x14], 2
jmp 0x4a1458
mov dword [ebp - 0x14], 4
jmp 0x4a1458
mov dword [ebp - 0x14], 3
jmp 0x4a1458
cmp eax, 0x500
je 0x4a1451
cmp eax, 0x600
je 0x4a14ae
cmp eax, edx
jne 0x4a1360
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4a147c
mov ecx, dword [0x4d70b0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4a147c
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4a1498
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4a1498
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4a14a1
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4a14b7
or dword [ebp - 0xc], 0x8000000
jmp 0x4a14c2
mov dword [ebp - 0x14], 5
jmp 0x4a1458
test al, 0x10
je 0x4a14c2
or dword [ebp - 0xc], 0x10000000
call fcn.0048d1bb
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4a14e8
call fcn.00490643
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00490630
mov dword [eax], 0x18
jmp 0x4a1576
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 0x4a1582
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4a154e
test byte [ebp + 0x10], 1
je 0x4a154e
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 0x4a1582
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4d82e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00490656
pop ecx
call fcn.00490630
mov eax, dword [eax]
jmp 0x4a1a10
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4a15d3
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4d82e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00490656
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4a1576
call fcn.00490630
mov dword [eax], 0xd
jmp 0x4a1576
cmp eax, 2
jne 0x4a15de
or byte [ebp - 1], 0x40
jmp 0x4a15e7
cmp eax, 3
jne 0x4a15e7
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0048cf8a
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4d82e0]
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 + 0x4d82e0]
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 0x4a16bd
test cl, 0x80
je 0x4a178d
test byte [ebp + 0x10], 2
je 0x4a16bd
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00495aa0
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4a167b
call fcn.00490643
cmp dword [eax], 0x83
je 0x4a16bd
push dword [esi]
call fcn.0049567f
jmp 0x4a1575
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00496a69
add esp, 0xc
test eax, eax
jne 0x4a16ad
cmp word [ebp - 0x2c], 0x1a
jne 0x4a16ad
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0048cdd6
add esp, 0xc
cmp eax, edi
je 0x4a166f
push ebx
push ebx
push dword [esi]
call fcn.00495aa0
add esp, 0xc
cmp eax, edi
je 0x4a166f
test byte [ebp - 1], 0x80
je 0x4a178d
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4a16e5
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4a16e2
or dword [ebp + 0x10], edi
jmp 0x4a16e5
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4a1732
cmp eax, 0x10000
je 0x4a171e
cmp eax, 0x14000
je 0x4a171e
cmp eax, 0x20000
je 0x4a172c
cmp eax, 0x24000
je 0x4a172c
cmp eax, 0x40000
je 0x4a1718
cmp eax, 0x44000
jne 0x4a1735
mov byte [ebp - 2], 1
jmp 0x4a1735
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4a1735
mov byte [ebp - 2], 2
jmp 0x4a1735
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4a178d
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4a178d
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4a18e7
cmp eax, 0x80000000
je 0x4a18ae
cmp eax, ecx
jne 0x4a178d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a178d
cmp eax, 2
jbe 0x4a198f
cmp eax, 4
jbe 0x4a1880
cmp eax, 5
je 0x4a198f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d82e0]
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 + 0x4d82e0]
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 0x4a17ff
test byte [ebp + 0x10], 8
je 0x4a17ff
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d82e0]
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 0x4a1a0e
test byte [ebp + 0x10], 1
je 0x4a1a0e
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 0x4a19f7
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00490656
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d82e0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0048d007
pop ecx
jmp 0x4a1575
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049c329
add esp, 0x10
or eax, edx
je 0x4a198f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049c329
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4a166f
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00496a69
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a166f
cmp eax, 2
je 0x4a1933
cmp eax, 3
jne 0x4a1981
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4a1933
mov byte [ebp - 2], 1
jmp 0x4a178d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a178d
cmp eax, 2
jbe 0x4a198f
cmp eax, 4
ja 0x4a1784
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049c329
add esp, 0x10
or eax, edx
je 0x4a198f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049c329
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4a178d
jmp 0x4a166f
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4a195b
push dword [esi]
call fcn.0049567f
pop ecx
call fcn.00490630
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4a1a10
cmp eax, 0xfeff
jne 0x4a1981
push ebx
push 2
push dword [esi]
call fcn.00495aa0
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a166f
mov byte [ebp - 2], 2
jmp 0x4a178d
push ebx
push ebx
push dword [esi]
call fcn.00495aa0
add esp, 0xc
jmp 0x4a1925
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4a19af
dec eax
jne 0x4a178d
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4a19bd
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.0049c038
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a19e3
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4a19bd
jmp 0x4a178d
push dword [esi]
call fcn.0049567f
pop ecx
call fcn.00490630
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4a1a10
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d82e0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret