Function at 0x5088d7
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 0x508906
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x508910
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004f6fe1
test eax, eax
pop ecx
je 0x50892b
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004eea6e
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004f489c
test eax, eax
pop ecx
je 0x508946
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004eea6e
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x508963
test ecx, 0x74000
jne 0x50895f
cmp dword [ebp - 0x24], eax
je 0x508963
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x5089bd
dec eax
je 0x5089a7
dec eax
je 0x5089a2
call fcn.004f5ec3
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004f5eb0
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004eeb6a
add esp, 0x14
jmp 0x508f70
mov dword [ebp - 8], edx
jmp 0x5089c0
test cl, 8
je 0x5089b4
test ecx, 0x70000
jne 0x5089a2
mov dword [ebp - 8], 0x40000000
jmp 0x5089c0
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x508a01
sub eax, ecx
je 0x5089f8
sub eax, ecx
je 0x5089ef
sub eax, ecx
je 0x5089e6
sub eax, 0x40
jne 0x50897c
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x508a04
mov dword [ebp - 0x10], 3
jmp 0x508a04
mov dword [ebp - 0x10], 2
jmp 0x508a04
mov dword [ebp - 0x10], 1
jmp 0x508a04
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 0x508a57
je 0x508a4e
cmp eax, ebx
je 0x508a4e
cmp eax, edi
je 0x508a45
cmp eax, 0x200
je 0x508aca
cmp eax, 0x300
jne 0x50897c
mov dword [ebp - 0x14], 2
jmp 0x508a74
mov dword [ebp - 0x14], 4
jmp 0x508a74
mov dword [ebp - 0x14], 3
jmp 0x508a74
cmp eax, 0x500
je 0x508a6d
cmp eax, 0x600
je 0x508aca
cmp eax, edx
jne 0x50897c
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x508a98
mov ecx, dword [0x55db74]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x508a98
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x508ab4
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x508ab4
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x508abd
or dword [ebp - 0xc], edi
test al, 0x20
je 0x508ad3
or dword [ebp - 0xc], 0x8000000
jmp 0x508ade
mov dword [ebp - 0x14], 5
jmp 0x508a74
test al, 0x10
je 0x508ade
or dword [ebp - 0xc], 0x10000000
call fcn.004f1dbb
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x508b04
call fcn.004f5ec3
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004f5eb0
mov dword [eax], 0x18
jmp 0x508b92
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 0x508b9e
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x508b6a
test byte [ebp + 0x10], 1
je 0x508b6a
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 0x508b9e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x55ef40]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004f5ed6
pop ecx
call fcn.004f5eb0
mov eax, dword [eax]
jmp 0x50902c
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x508bef
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x55ef40]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004f5ed6
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x508b92
call fcn.004f5eb0
mov dword [eax], 0xd
jmp 0x508b92
cmp eax, 2
jne 0x508bfa
or byte [ebp - 1], 0x40
jmp 0x508c03
cmp eax, 3
jne 0x508c03
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004f1b8a
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x55ef40]
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 + 0x55ef40]
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 0x508cd9
test cl, 0x80
je 0x508da9
test byte [ebp + 0x10], 2
je 0x508cd9
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004fc36c
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x508c97
call fcn.004f5ec3
cmp dword [eax], 0x83
je 0x508cd9
push dword [esi]
call fcn.004fbf4b
jmp 0x508b91
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.004fd335
add esp, 0xc
test eax, eax
jne 0x508cc9
cmp word [ebp - 0x2c], 0x1a
jne 0x508cc9
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004f1464
add esp, 0xc
cmp eax, edi
je 0x508c8b
push ebx
push ebx
push dword [esi]
call fcn.004fc36c
add esp, 0xc
cmp eax, edi
je 0x508c8b
test byte [ebp - 1], 0x80
je 0x508da9
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x508d01
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x508cfe
or dword [ebp + 0x10], edi
jmp 0x508d01
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x508d4e
cmp eax, 0x10000
je 0x508d3a
cmp eax, 0x14000
je 0x508d3a
cmp eax, 0x20000
je 0x508d48
cmp eax, 0x24000
je 0x508d48
cmp eax, 0x40000
je 0x508d34
cmp eax, 0x44000
jne 0x508d51
mov byte [ebp - 2], 1
jmp 0x508d51
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x508d51
mov byte [ebp - 2], 2
jmp 0x508d51
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x508da9
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x508da9
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x508f03
cmp eax, 0x80000000
je 0x508eca
cmp eax, ecx
jne 0x508da9
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x508da9
cmp eax, 2
jbe 0x508fab
cmp eax, 4
jbe 0x508e9c
cmp eax, 5
je 0x508fab
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x55ef40]
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 + 0x55ef40]
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 0x508e1b
test byte [ebp + 0x10], 8
je 0x508e1b
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x55ef40]
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 0x50902a
test byte [ebp + 0x10], 1
je 0x50902a
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 0x509013
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004f5ed6
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x55ef40]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004f1c07
pop ecx
jmp 0x508b91
push 2
push ebx
push ebx
push dword [esi]
call fcn.0050265e
add esp, 0x10
or eax, edx
je 0x508fab
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0050265e
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x508c8b
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004fd335
add esp, 0xc
cmp eax, 0xffffffff
je 0x508c8b
cmp eax, 2
je 0x508f4f
cmp eax, 3
jne 0x508f9d
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x508f4f
mov byte [ebp - 2], 1
jmp 0x508da9
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x508da9
cmp eax, 2
jbe 0x508fab
cmp eax, 4
ja 0x508da0
push 2
push ebx
push ebx
push dword [esi]
call fcn.0050265e
add esp, 0x10
or eax, edx
je 0x508fab
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0050265e
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x508da9
jmp 0x508c8b
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x508f77
push dword [esi]
call fcn.004fbf4b
pop ecx
call fcn.004f5eb0
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x50902c
cmp eax, 0xfeff
jne 0x508f9d
push ebx
push 2
push dword [esi]
call fcn.004fc36c
add esp, 0xc
cmp eax, 0xffffffff
je 0x508c8b
mov byte [ebp - 2], 2
jmp 0x508da9
push ebx
push ebx
push dword [esi]
call fcn.004fc36c
add esp, 0xc
jmp 0x508f41
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x508fcb
dec eax
jne 0x508da9
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x508fd9
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.00502582
add esp, 0xc
cmp eax, 0xffffffff
je 0x508fff
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x508fd9
jmp 0x508da9
push dword [esi]
call fcn.004fbf4b
pop ecx
call fcn.004f5eb0
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x50902c
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x55ef40]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret