Function at 0x4f5f11
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x34
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 - 0x34], 0xc
mov dword [ebp - 0x30], ebx
je 0x4f5f40
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4f5f4a
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004f8af6
test eax, eax
pop ecx
je 0x4f5f65
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004e0e6f
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004e0bf2
test eax, eax
pop ecx
je 0x4f5f80
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004e0e6f
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4f5f9d
test ecx, 0x74000
jne 0x4f5f99
cmp dword [ebp - 0x24], eax
je 0x4f5f9d
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4f5ff7
dec eax
je 0x4f5fe1
dec eax
je 0x4f5fdc
call fcn.004e67c8
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004e67b5
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004e0f6b
add esp, 0x14
jmp 0x4f65a9
mov dword [ebp - 8], edx
jmp 0x4f5ffa
test cl, 8
je 0x4f5fee
test ecx, 0x70000
jne 0x4f5fdc
mov dword [ebp - 8], 0x40000000
jmp 0x4f5ffa
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4f603b
sub eax, ecx
je 0x4f6032
sub eax, ecx
je 0x4f6029
sub eax, ecx
je 0x4f6020
sub eax, 0x40
jne 0x4f5fb6
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4f603e
mov dword [ebp - 0x10], 3
jmp 0x4f603e
mov dword [ebp - 0x10], 2
jmp 0x4f603e
mov dword [ebp - 0x10], 1
jmp 0x4f603e
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 0x4f6091
je 0x4f6088
cmp eax, ebx
je 0x4f6088
cmp eax, edi
je 0x4f607f
cmp eax, 0x200
je 0x4f6104
cmp eax, 0x300
jne 0x4f5fb6
mov dword [ebp - 0x14], 2
jmp 0x4f60ae
mov dword [ebp - 0x14], 4
jmp 0x4f60ae
mov dword [ebp - 0x14], 3
jmp 0x4f60ae
cmp eax, 0x500
je 0x4f60a7
cmp eax, 0x600
je 0x4f6104
cmp eax, edx
jne 0x4f5fb6
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4f60d2
mov ecx, dword [0x5765f8]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4f60d2
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4f60ee
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4f60ee
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4f60f7
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4f610d
or dword [ebp - 0xc], 0x8000000
jmp 0x4f6118
mov dword [ebp - 0x14], 5
jmp 0x4f60ae
test al, 0x10
je 0x4f6118
or dword [ebp - 0xc], 0x10000000
call fcn.004f6d32
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4f613e
call fcn.004e67c8
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004e67b5
mov dword [eax], 0x18
jmp 0x4f61cc
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileA]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x34]
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 0x4f61d8
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4f61a4
test byte [ebp + 0x10], 1
je 0x4f61a4
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
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 0x4f61d8
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x57cbc0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004e67db
pop ecx
call fcn.004e67b5
mov eax, dword [eax]
jmp 0x4f6665
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4f6229
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x57cbc0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004e67db
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4f61cc
call fcn.004e67b5
mov dword [eax], 0xd
jmp 0x4f61cc
cmp eax, 2
jne 0x4f6234
or byte [ebp - 1], 0x40
jmp 0x4f623d
cmp eax, 3
jne 0x4f623d
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004f6b01
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x57cbc0]
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 + 0x57cbc0]
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 0x4f6312
test cl, 0x80
je 0x4f63e2
test byte [ebp + 0x10], 2
je 0x4f6312
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004ec8c7
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4f62d1
call fcn.004e67c8
cmp dword [eax], 0x83
je 0x4f6312
push dword [esi]
call fcn.004eca42
jmp 0x4f61cb
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.004ed472
add esp, 0xc
test eax, eax
jne 0x4f6302
cmp byte [ebp - 4], 0x1a
jne 0x4f6302
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004f8886
add esp, 0xc
cmp eax, edi
je 0x4f62c5
push ebx
push ebx
push dword [esi]
call fcn.004ec8c7
add esp, 0xc
cmp eax, edi
je 0x4f62c5
test byte [ebp - 1], 0x80
je 0x4f63e2
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4f633a
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4f6337
or dword [ebp + 0x10], edi
jmp 0x4f633a
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4f6387
cmp eax, 0x10000
je 0x4f6373
cmp eax, 0x14000
je 0x4f6373
cmp eax, 0x20000
je 0x4f6381
cmp eax, 0x24000
je 0x4f6381
cmp eax, 0x40000
je 0x4f636d
cmp eax, 0x44000
jne 0x4f638a
mov byte [ebp - 2], 1
jmp 0x4f638a
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4f638a
mov byte [ebp - 2], 2
jmp 0x4f638a
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4f63e2
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4f63e2
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4f653c
cmp eax, 0x80000000
je 0x4f6503
cmp eax, ecx
jne 0x4f63e2
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4f63e2
cmp eax, 2
jbe 0x4f65e4
cmp eax, 4
jbe 0x4f64d5
cmp eax, 5
je 0x4f65e4
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x57cbc0]
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 + 0x57cbc0]
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 0x4f6454
test byte [ebp + 0x10], 8
je 0x4f6454
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x57cbc0]
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 0x4f6663
test byte [ebp + 0x10], 1
je 0x4f6663
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
jne 0x4f664c
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004e67db
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x57cbc0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004f6b7e
pop ecx
jmp 0x4f61cb
push 2
push ebx
push ebx
push dword [esi]
call fcn.004f2766
add esp, 0x10
or eax, edx
je 0x4f65e4
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004f2766
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4f62c5
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004ed472
add esp, 0xc
cmp eax, 0xffffffff
je 0x4f62c5
cmp eax, 2
je 0x4f6588
cmp eax, 3
jne 0x4f65d6
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4f6588
mov byte [ebp - 2], 1
jmp 0x4f63e2
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4f63e2
cmp eax, 2
jbe 0x4f65e4
cmp eax, 4
ja 0x4f63d9
push 2
push ebx
push ebx
push dword [esi]
call fcn.004f2766
add esp, 0x10
or eax, edx
je 0x4f65e4
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004f2766
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4f63e2
jmp 0x4f62c5
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4f65b0
push dword [esi]
call fcn.004eca42
pop ecx
call fcn.004e67b5
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4f6665
cmp eax, 0xfeff
jne 0x4f65d6
push ebx
push 2
push dword [esi]
call fcn.004ec8c7
add esp, 0xc
cmp eax, 0xffffffff
je 0x4f62c5
mov byte [ebp - 2], 2
jmp 0x4f63e2
push ebx
push ebx
push dword [esi]
call fcn.004ec8c7
add esp, 0xc
jmp 0x4f657a
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4f6604
dec eax
jne 0x4f63e2
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4f6612
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.004ed195
add esp, 0xc
cmp eax, 0xffffffff
je 0x4f6638
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4f6612
jmp 0x4f63e2
push dword [esi]
call fcn.004eca42
pop ecx
call fcn.004e67b5
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4f6665
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x57cbc0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret