Function at 0x556872
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 0x5568a1
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x5568ab
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.005577be
test eax, eax
pop ecx
je 0x5568c6
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00536526
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00540cf1
test eax, eax
pop ecx
je 0x5568e1
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00536526
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x5568fe
test ecx, 0x74000
jne 0x5568fa
cmp dword [ebp - 0x24], eax
je 0x5568fe
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x556958
dec eax
je 0x556942
dec eax
je 0x55693d
call fcn.0053fba9
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0053fb96
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00536622
add esp, 0x14
jmp 0x556f0b
mov dword [ebp - 8], edx
jmp 0x55695b
test cl, 8
je 0x55694f
test ecx, 0x70000
jne 0x55693d
mov dword [ebp - 8], 0x40000000
jmp 0x55695b
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x55699c
sub eax, ecx
je 0x556993
sub eax, ecx
je 0x55698a
sub eax, ecx
je 0x556981
sub eax, 0x40
jne 0x556917
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x55699f
mov dword [ebp - 0x10], 3
jmp 0x55699f
mov dword [ebp - 0x10], 2
jmp 0x55699f
mov dword [ebp - 0x10], 1
jmp 0x55699f
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 0x5569f2
je 0x5569e9
cmp eax, ebx
je 0x5569e9
cmp eax, edi
je 0x5569e0
cmp eax, 0x200
je 0x556a65
cmp eax, 0x300
jne 0x556917
mov dword [ebp - 0x14], 2
jmp 0x556a0f
mov dword [ebp - 0x14], 4
jmp 0x556a0f
mov dword [ebp - 0x14], 3
jmp 0x556a0f
cmp eax, 0x500
je 0x556a08
cmp eax, 0x600
je 0x556a65
cmp eax, edx
jne 0x556917
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x556a33
mov ecx, dword [0x689b80]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x556a33
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x556a4f
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x556a4f
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x556a58
or dword [ebp - 0xc], edi
test al, 0x20
je 0x556a6e
or dword [ebp - 0xc], 0x8000000
jmp 0x556a79
mov dword [ebp - 0x14], 5
jmp 0x556a0f
test al, 0x10
je 0x556a79
or dword [ebp - 0xc], 0x10000000
call fcn.0055336f
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x556a9f
call fcn.0053fba9
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0053fb96
mov dword [eax], 0x18
jmp 0x556b2d
mov eax, dword [ebp + 8]
mov edi, dword [0x689428]
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 0x556b39
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x556b05
test byte [ebp + 0x10], 1
je 0x556b05
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 0x556b39
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x6d2dc0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0053fbbc
pop ecx
call fcn.0053fb96
mov eax, dword [eax]
jmp 0x556fc7
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x556b8a
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x6d2dc0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0053fbbc
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x556b2d
call fcn.0053fb96
mov dword [eax], 0xd
jmp 0x556b2d
cmp eax, 2
jne 0x556b95
or byte [ebp - 1], 0x40
jmp 0x556b9e
cmp eax, 3
jne 0x556b9e
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0055313e
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x6d2dc0]
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 + 0x6d2dc0]
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 0x556c74
test cl, 0x80
je 0x556d44
test byte [ebp + 0x10], 2
je 0x556c74
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0054779e
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x556c32
call fcn.0053fba9
cmp dword [eax], 0x83
je 0x556c74
push dword [esi]
call fcn.00547343
jmp 0x556b2c
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.0055350e
add esp, 0xc
test eax, eax
jne 0x556c64
cmp word [ebp - 0x2c], 0x1a
jne 0x556c64
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0055754e
add esp, 0xc
cmp eax, edi
je 0x556c26
push ebx
push ebx
push dword [esi]
call fcn.0054779e
add esp, 0xc
cmp eax, edi
je 0x556c26
test byte [ebp - 1], 0x80
je 0x556d44
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x556c9c
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x556c99
or dword [ebp + 0x10], edi
jmp 0x556c9c
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x556ce9
cmp eax, 0x10000
je 0x556cd5
cmp eax, 0x14000
je 0x556cd5
cmp eax, 0x20000
je 0x556ce3
cmp eax, 0x24000
je 0x556ce3
cmp eax, 0x40000
je 0x556ccf
cmp eax, 0x44000
jne 0x556cec
mov byte [ebp - 2], 1
jmp 0x556cec
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x556cec
mov byte [ebp - 2], 2
jmp 0x556cec
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x556d44
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x556d44
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x556e9e
cmp eax, 0x80000000
je 0x556e65
cmp eax, ecx
jne 0x556d44
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x556d44
cmp eax, 2
jbe 0x556f46
cmp eax, 4
jbe 0x556e37
cmp eax, 5
je 0x556f46
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6d2dc0]
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 + 0x6d2dc0]
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 0x556db6
test byte [ebp + 0x10], 8
je 0x556db6
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6d2dc0]
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 0x556fc5
test byte [ebp + 0x10], 1
je 0x556fc5
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 [0x689428]
cmp eax, 0xffffffff
jne 0x556fae
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0053fbbc
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6d2dc0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.005531bb
pop ecx
jmp 0x556b2c
push 2
push ebx
push ebx
push dword [esi]
call fcn.0055189f
add esp, 0x10
or eax, edx
je 0x556f46
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0055189f
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x556c26
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0055350e
add esp, 0xc
cmp eax, 0xffffffff
je 0x556c26
cmp eax, 2
je 0x556eea
cmp eax, 3
jne 0x556f38
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x556eea
mov byte [ebp - 2], 1
jmp 0x556d44
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x556d44
cmp eax, 2
jbe 0x556f46
cmp eax, 4
ja 0x556d3b
push 2
push ebx
push ebx
push dword [esi]
call fcn.0055189f
add esp, 0x10
or eax, edx
je 0x556f46
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0055189f
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x556d44
jmp 0x556c26
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x556f12
push dword [esi]
call fcn.00547343
pop ecx
call fcn.0053fb96
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x556fc7
cmp eax, 0xfeff
jne 0x556f38
push ebx
push 2
push dword [esi]
call fcn.0054779e
add esp, 0xc
cmp eax, 0xffffffff
je 0x556c26
mov byte [ebp - 2], 2
jmp 0x556d44
push ebx
push ebx
push dword [esi]
call fcn.0054779e
add esp, 0xc
jmp 0x556edc
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x556f66
dec eax
jne 0x556d44
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x556f74
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.00547159
add esp, 0xc
cmp eax, 0xffffffff
je 0x556f9a
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x556f74
jmp 0x556d44
push dword [esi]
call fcn.00547343
pop ecx
call fcn.0053fb96
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x556fc7
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6d2dc0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret