Function at 0x508627
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 0x508656
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x508660
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004f6d21
test eax, eax
pop ecx
je 0x50867b
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004ee7ae
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004f45dc
test eax, eax
pop ecx
je 0x508696
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004ee7ae
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x5086b3
test ecx, 0x74000
jne 0x5086af
cmp dword [ebp - 0x24], eax
je 0x5086b3
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x50870d
dec eax
je 0x5086f7
dec eax
je 0x5086f2
call fcn.004f5c03
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004f5bf0
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004ee8aa
add esp, 0x14
jmp 0x508cc0
mov dword [ebp - 8], edx
jmp 0x508710
test cl, 8
je 0x508704
test ecx, 0x70000
jne 0x5086f2
mov dword [ebp - 8], 0x40000000
jmp 0x508710
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x508751
sub eax, ecx
je 0x508748
sub eax, ecx
je 0x50873f
sub eax, ecx
je 0x508736
sub eax, 0x40
jne 0x5086cc
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x508754
mov dword [ebp - 0x10], 3
jmp 0x508754
mov dword [ebp - 0x10], 2
jmp 0x508754
mov dword [ebp - 0x10], 1
jmp 0x508754
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 0x5087a7
je 0x50879e
cmp eax, ebx
je 0x50879e
cmp eax, edi
je 0x508795
cmp eax, 0x200
je 0x50881a
cmp eax, 0x300
jne 0x5086cc
mov dword [ebp - 0x14], 2
jmp 0x5087c4
mov dword [ebp - 0x14], 4
jmp 0x5087c4
mov dword [ebp - 0x14], 3
jmp 0x5087c4
cmp eax, 0x500
je 0x5087bd
cmp eax, 0x600
je 0x50881a
cmp eax, edx
jne 0x5086cc
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x5087e8
mov ecx, dword [0x55db74]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x5087e8
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x508804
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x508804
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x50880d
or dword [ebp - 0xc], edi
test al, 0x20
je 0x508823
or dword [ebp - 0xc], 0x8000000
jmp 0x50882e
mov dword [ebp - 0x14], 5
jmp 0x5087c4
test al, 0x10
je 0x50882e
or dword [ebp - 0xc], 0x10000000
call fcn.004f1afb
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x508854
call fcn.004f5c03
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004f5bf0
mov dword [eax], 0x18
jmp 0x5088e2
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 0x5088ee
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x5088ba
test byte [ebp + 0x10], 1
je 0x5088ba
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 0x5088ee
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x55eec0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004f5c16
pop ecx
call fcn.004f5bf0
mov eax, dword [eax]
jmp 0x508d7c
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x50893f
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x55eec0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004f5c16
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x5088e2
call fcn.004f5bf0
mov dword [eax], 0xd
jmp 0x5088e2
cmp eax, 2
jne 0x50894a
or byte [ebp - 1], 0x40
jmp 0x508953
cmp eax, 3
jne 0x508953
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004f18ca
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x55eec0]
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 + 0x55eec0]
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 0x508a29
test cl, 0x80
je 0x508af9
test byte [ebp + 0x10], 2
je 0x508a29
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004fc0ac
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x5089e7
call fcn.004f5c03
cmp dword [eax], 0x83
je 0x508a29
push dword [esi]
call fcn.004fbc8b
jmp 0x5088e1
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.004fd075
add esp, 0xc
test eax, eax
jne 0x508a19
cmp word [ebp - 0x2c], 0x1a
jne 0x508a19
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004f11a4
add esp, 0xc
cmp eax, edi
je 0x5089db
push ebx
push ebx
push dword [esi]
call fcn.004fc0ac
add esp, 0xc
cmp eax, edi
je 0x5089db
test byte [ebp - 1], 0x80
je 0x508af9
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x508a51
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x508a4e
or dword [ebp + 0x10], edi
jmp 0x508a51
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x508a9e
cmp eax, 0x10000
je 0x508a8a
cmp eax, 0x14000
je 0x508a8a
cmp eax, 0x20000
je 0x508a98
cmp eax, 0x24000
je 0x508a98
cmp eax, 0x40000
je 0x508a84
cmp eax, 0x44000
jne 0x508aa1
mov byte [ebp - 2], 1
jmp 0x508aa1
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x508aa1
mov byte [ebp - 2], 2
jmp 0x508aa1
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x508af9
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x508af9
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x508c53
cmp eax, 0x80000000
je 0x508c1a
cmp eax, ecx
jne 0x508af9
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x508af9
cmp eax, 2
jbe 0x508cfb
cmp eax, 4
jbe 0x508bec
cmp eax, 5
je 0x508cfb
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x55eec0]
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 + 0x55eec0]
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 0x508b6b
test byte [ebp + 0x10], 8
je 0x508b6b
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x55eec0]
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 0x508d7a
test byte [ebp + 0x10], 1
je 0x508d7a
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 0x508d63
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004f5c16
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x55eec0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004f1947
pop ecx
jmp 0x5088e1
push 2
push ebx
push ebx
push dword [esi]
call fcn.0050239e
add esp, 0x10
or eax, edx
je 0x508cfb
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0050239e
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x5089db
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004fd075
add esp, 0xc
cmp eax, 0xffffffff
je 0x5089db
cmp eax, 2
je 0x508c9f
cmp eax, 3
jne 0x508ced
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x508c9f
mov byte [ebp - 2], 1
jmp 0x508af9
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x508af9
cmp eax, 2
jbe 0x508cfb
cmp eax, 4
ja 0x508af0
push 2
push ebx
push ebx
push dword [esi]
call fcn.0050239e
add esp, 0x10
or eax, edx
je 0x508cfb
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0050239e
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x508af9
jmp 0x5089db
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x508cc7
push dword [esi]
call fcn.004fbc8b
pop ecx
call fcn.004f5bf0
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x508d7c
cmp eax, 0xfeff
jne 0x508ced
push ebx
push 2
push dword [esi]
call fcn.004fc0ac
add esp, 0xc
cmp eax, 0xffffffff
je 0x5089db
mov byte [ebp - 2], 2
jmp 0x508af9
push ebx
push ebx
push dword [esi]
call fcn.004fc0ac
add esp, 0xc
jmp 0x508c91
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x508d1b
dec eax
jne 0x508af9
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x508d29
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.005022c2
add esp, 0xc
cmp eax, 0xffffffff
je 0x508d4f
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x508d29
jmp 0x508af9
push dword [esi]
call fcn.004fbc8b
pop ecx
call fcn.004f5bf0
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x508d7c
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x55eec0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret