Function at 0x5030fd
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 0x50312c
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x503136
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00510c6b
test eax, eax
pop ecx
je 0x503151
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004fb76e
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004fada4
test eax, eax
pop ecx
je 0x50316c
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004fb76e
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x503189
test ecx, 0x74000
jne 0x503185
cmp dword [ebp - 0x24], eax
je 0x503189
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x5031e3
dec eax
je 0x5031cd
dec eax
je 0x5031c8
call fcn.004fdeb7
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004fdea4
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004fb86a
add esp, 0x14
jmp 0x503795
mov dword [ebp - 8], edx
jmp 0x5031e6
test cl, 8
je 0x5031da
test ecx, 0x70000
jne 0x5031c8
mov dword [ebp - 8], 0x40000000
jmp 0x5031e6
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x503227
sub eax, ecx
je 0x50321e
sub eax, ecx
je 0x503215
sub eax, ecx
je 0x50320c
sub eax, 0x40
jne 0x5031a2
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x50322a
mov dword [ebp - 0x10], 3
jmp 0x50322a
mov dword [ebp - 0x10], 2
jmp 0x50322a
mov dword [ebp - 0x10], 1
jmp 0x50322a
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 0x50327d
je 0x503274
cmp eax, ebx
je 0x503274
cmp eax, edi
je 0x50326b
cmp eax, 0x200
je 0x5032f0
cmp eax, 0x300
jne 0x5031a2
mov dword [ebp - 0x14], 2
jmp 0x50329a
mov dword [ebp - 0x14], 4
jmp 0x50329a
mov dword [ebp - 0x14], 3
jmp 0x50329a
cmp eax, 0x500
je 0x503293
cmp eax, 0x600
je 0x5032f0
cmp eax, edx
jne 0x5031a2
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x5032be
mov ecx, dword [0x5afb7c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x5032be
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x5032da
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x5032da
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x5032e3
or dword [ebp - 0xc], edi
test al, 0x20
je 0x5032f9
or dword [ebp - 0xc], 0x8000000
jmp 0x503304
mov dword [ebp - 0x14], 5
jmp 0x50329a
test al, 0x10
je 0x503304
or dword [ebp - 0xc], 0x10000000
call fcn.0050e342
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x50332a
call fcn.004fdeb7
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004fdea4
mov dword [eax], 0x18
jmp 0x5033b8
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 0x5033c4
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x503390
test byte [ebp + 0x10], 1
je 0x503390
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 0x5033c4
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5b2a20]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.DLL_GetLastError]
push eax
call fcn.004fdeca
pop ecx
call fcn.004fdea4
mov eax, dword [eax]
jmp 0x503851
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_GetFileType]
cmp eax, ebx
jne 0x503415
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5b2a20]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.DLL_GetLastError]
mov esi, eax
push esi
call fcn.004fdeca
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_CloseHandle]
cmp esi, ebx
jne 0x5033b8
call fcn.004fdea4
mov dword [eax], 0xd
jmp 0x5033b8
cmp eax, 2
jne 0x503420
or byte [ebp - 1], 0x40
jmp 0x503429
cmp eax, 3
jne 0x503429
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0050e111
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x5b2a20]
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 + 0x5b2a20]
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 0x5034fe
test cl, 0x80
je 0x5035ce
test byte [ebp + 0x10], 2
je 0x5034fe
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0050998a
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x5034bd
call fcn.004fdeb7
cmp dword [eax], 0x83
je 0x5034fe
push dword [esi]
call fcn.0050182b
jmp 0x5033b7
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.005104f1
add esp, 0xc
test eax, eax
jne 0x5034ee
cmp byte [ebp - 4], 0x1a
jne 0x5034ee
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0051033d
add esp, 0xc
cmp eax, edi
je 0x5034b1
push ebx
push ebx
push dword [esi]
call fcn.0050998a
add esp, 0xc
cmp eax, edi
je 0x5034b1
test byte [ebp - 1], 0x80
je 0x5035ce
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x503526
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x503523
or dword [ebp + 0x10], edi
jmp 0x503526
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x503573
cmp eax, 0x10000
je 0x50355f
cmp eax, 0x14000
je 0x50355f
cmp eax, 0x20000
je 0x50356d
cmp eax, 0x24000
je 0x50356d
cmp eax, 0x40000
je 0x503559
cmp eax, 0x44000
jne 0x503576
mov byte [ebp - 2], 1
jmp 0x503576
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x503576
mov byte [ebp - 2], 2
jmp 0x503576
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x5035ce
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x5035ce
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x503728
cmp eax, 0x80000000
je 0x5036ef
cmp eax, ecx
jne 0x5035ce
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x5035ce
cmp eax, 2
jbe 0x5037d0
cmp eax, 4
jbe 0x5036c1
cmp eax, 5
je 0x5037d0
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5b2a20]
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 + 0x5b2a20]
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 0x503640
test byte [ebp + 0x10], 8
je 0x503640
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5b2a20]
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 0x50384f
test byte [ebp + 0x10], 1
je 0x50384f
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 0x503838
call dword [sym.imp.KERNEL32.DLL_GetLastError]
push eax
call fcn.004fdeca
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5b2a20]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0050e18e
pop ecx
jmp 0x5033b7
push 2
push ebx
push ebx
push dword [esi]
call fcn.005101a1
add esp, 0x10
or eax, edx
je 0x5037d0
push ebx
push ebx
push ebx
push dword [esi]
call fcn.005101a1
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x5034b1
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.005104f1
add esp, 0xc
cmp eax, 0xffffffff
je 0x5034b1
cmp eax, 2
je 0x503774
cmp eax, 3
jne 0x5037c2
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x503774
mov byte [ebp - 2], 1
jmp 0x5035ce
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x5035ce
cmp eax, 2
jbe 0x5037d0
cmp eax, 4
ja 0x5035c5
push 2
push ebx
push ebx
push dword [esi]
call fcn.005101a1
add esp, 0x10
or eax, edx
je 0x5037d0
push ebx
push ebx
push ebx
push dword [esi]
call fcn.005101a1
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x5035ce
jmp 0x5034b1
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x50379c
push dword [esi]
call fcn.0050182b
pop ecx
call fcn.004fdea4
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x503851
cmp eax, 0xfeff
jne 0x5037c2
push ebx
push 2
push dword [esi]
call fcn.0050998a
add esp, 0xc
cmp eax, 0xffffffff
je 0x5034b1
mov byte [ebp - 2], 2
jmp 0x5035ce
push ebx
push ebx
push dword [esi]
call fcn.0050998a
add esp, 0xc
jmp 0x503766
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x5037f0
dec eax
jne 0x5035ce
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x5037fe
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.0050947b
add esp, 0xc
cmp eax, 0xffffffff
je 0x503824
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x5037fe
jmp 0x5035ce
push dword [esi]
call fcn.0050182b
pop ecx
call fcn.004fdea4
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x503851
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5b2a20]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret