Function at 0x4f96f8
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 0x4f9727
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4f9731
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004fd835
test eax, eax
pop ecx
je 0x4f974c
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004e2c71
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004e4b75
test eax, eax
pop ecx
je 0x4f9767
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004e2c71
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4f9784
test ecx, 0x74000
jne 0x4f9780
cmp dword [ebp - 0x24], eax
je 0x4f9784
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4f97de
dec eax
je 0x4f97c8
dec eax
je 0x4f97c3
call fcn.004e6d6c
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004e6d59
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004e2d6d
add esp, 0x14
jmp 0x4f9d90
mov dword [ebp - 8], edx
jmp 0x4f97e1
test cl, 8
je 0x4f97d5
test ecx, 0x70000
jne 0x4f97c3
mov dword [ebp - 8], 0x40000000
jmp 0x4f97e1
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4f9822
sub eax, ecx
je 0x4f9819
sub eax, ecx
je 0x4f9810
sub eax, ecx
je 0x4f9807
sub eax, 0x40
jne 0x4f979d
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4f9825
mov dword [ebp - 0x10], 3
jmp 0x4f9825
mov dword [ebp - 0x10], 2
jmp 0x4f9825
mov dword [ebp - 0x10], 1
jmp 0x4f9825
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 0x4f9878
je 0x4f986f
cmp eax, ebx
je 0x4f986f
cmp eax, edi
je 0x4f9866
cmp eax, 0x200
je 0x4f98eb
cmp eax, 0x300
jne 0x4f979d
mov dword [ebp - 0x14], 2
jmp 0x4f9895
mov dword [ebp - 0x14], 4
jmp 0x4f9895
mov dword [ebp - 0x14], 3
jmp 0x4f9895
cmp eax, 0x500
je 0x4f988e
cmp eax, 0x600
je 0x4f98eb
cmp eax, edx
jne 0x4f979d
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4f98b9
mov ecx, dword [0x59d17c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4f98b9
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4f98d5
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4f98d5
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4f98de
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4f98f4
or dword [ebp - 0xc], 0x8000000
jmp 0x4f98ff
mov dword [ebp - 0x14], 5
jmp 0x4f9895
test al, 0x10
je 0x4f98ff
or dword [ebp - 0xc], 0x10000000
call fcn.004ecdf9
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4f9925
call fcn.004e6d6c
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004e6d59
mov dword [eax], 0x18
jmp 0x4f99b3
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 0x4f99bf
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4f998b
test byte [ebp + 0x10], 1
je 0x4f998b
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 0x4f99bf
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x59e280]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004e6d7f
pop ecx
call fcn.004e6d59
mov eax, dword [eax]
jmp 0x4f9e4c
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4f9a10
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x59e280]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004e6d7f
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4f99b3
call fcn.004e6d59
mov dword [eax], 0xd
jmp 0x4f99b3
cmp eax, 2
jne 0x4f9a1b
or byte [ebp - 1], 0x40
jmp 0x4f9a24
cmp eax, 3
jne 0x4f9a24
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004ecbc8
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x59e280]
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 + 0x59e280]
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 0x4f9af9
test cl, 0x80
je 0x4f9bc9
test byte [ebp + 0x10], 2
je 0x4f9af9
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004f65b7
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4f9ab8
call fcn.004e6d6c
cmp dword [eax], 0x83
je 0x4f9af9
push dword [esi]
call fcn.004f259b
jmp 0x4f99b2
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.004f6825
add esp, 0xc
test eax, eax
jne 0x4f9ae9
cmp byte [ebp - 4], 0x1a
jne 0x4f9ae9
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004fd5c5
add esp, 0xc
cmp eax, edi
je 0x4f9aac
push ebx
push ebx
push dword [esi]
call fcn.004f65b7
add esp, 0xc
cmp eax, edi
je 0x4f9aac
test byte [ebp - 1], 0x80
je 0x4f9bc9
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4f9b21
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4f9b1e
or dword [ebp + 0x10], edi
jmp 0x4f9b21
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4f9b6e
cmp eax, 0x10000
je 0x4f9b5a
cmp eax, 0x14000
je 0x4f9b5a
cmp eax, 0x20000
je 0x4f9b68
cmp eax, 0x24000
je 0x4f9b68
cmp eax, 0x40000
je 0x4f9b54
cmp eax, 0x44000
jne 0x4f9b71
mov byte [ebp - 2], 1
jmp 0x4f9b71
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4f9b71
mov byte [ebp - 2], 2
jmp 0x4f9b71
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4f9bc9
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4f9bc9
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4f9d23
cmp eax, 0x80000000
je 0x4f9cea
cmp eax, ecx
jne 0x4f9bc9
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4f9bc9
cmp eax, 2
jbe 0x4f9dcb
cmp eax, 4
jbe 0x4f9cbc
cmp eax, 5
je 0x4f9dcb
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x59e280]
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 + 0x59e280]
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 0x4f9c3b
test byte [ebp + 0x10], 8
je 0x4f9c3b
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x59e280]
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 0x4f9e4a
test byte [ebp + 0x10], 1
je 0x4f9e4a
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 0x4f9e33
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004e6d7f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x59e280]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004ecc45
pop ecx
jmp 0x4f99b2
push 2
push ebx
push ebx
push dword [esi]
call fcn.004fab23
add esp, 0x10
or eax, edx
je 0x4f9dcb
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004fab23
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4f9aac
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004f6825
add esp, 0xc
cmp eax, 0xffffffff
je 0x4f9aac
cmp eax, 2
je 0x4f9d6f
cmp eax, 3
jne 0x4f9dbd
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4f9d6f
mov byte [ebp - 2], 1
jmp 0x4f9bc9
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4f9bc9
cmp eax, 2
jbe 0x4f9dcb
cmp eax, 4
ja 0x4f9bc0
push 2
push ebx
push ebx
push dword [esi]
call fcn.004fab23
add esp, 0x10
or eax, edx
je 0x4f9dcb
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004fab23
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4f9bc9
jmp 0x4f9aac
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4f9d97
push dword [esi]
call fcn.004f259b
pop ecx
call fcn.004e6d59
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4f9e4c
cmp eax, 0xfeff
jne 0x4f9dbd
push ebx
push 2
push dword [esi]
call fcn.004f65b7
add esp, 0xc
cmp eax, 0xffffffff
je 0x4f9aac
mov byte [ebp - 2], 2
jmp 0x4f9bc9
push ebx
push ebx
push dword [esi]
call fcn.004f65b7
add esp, 0xc
jmp 0x4f9d61
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4f9deb
dec eax
jne 0x4f9bc9
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4f9df9
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.004f2cee
add esp, 0xc
cmp eax, 0xffffffff
je 0x4f9e1f
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4f9df9
jmp 0x4f9bc9
push dword [esi]
call fcn.004f259b
pop ecx
call fcn.004e6d59
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4f9e4c
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x59e280]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret