Function at 0x59c3be
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 0x59c3ed
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x59c3f7
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.005a40ac
test eax, eax
pop ecx
je 0x59c412
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0057dc04
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0058341a
test eax, eax
pop ecx
je 0x59c42d
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0057dc04
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x59c44a
test ecx, 0x74000
jne 0x59c446
cmp dword [ebp - 0x24], eax
je 0x59c44a
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x59c4a4
dec eax
je 0x59c48e
dec eax
je 0x59c489
call fcn.0057f4dd
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0057f4ca
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0057dd38
add esp, 0x14
jmp 0x59ca56
mov dword [ebp - 8], edx
jmp 0x59c4a7
test cl, 8
je 0x59c49b
test ecx, 0x70000
jne 0x59c489
mov dword [ebp - 8], 0x40000000
jmp 0x59c4a7
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x59c4e8
sub eax, ecx
je 0x59c4df
sub eax, ecx
je 0x59c4d6
sub eax, ecx
je 0x59c4cd
sub eax, 0x40
jne 0x59c463
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x59c4eb
mov dword [ebp - 0x10], 3
jmp 0x59c4eb
mov dword [ebp - 0x10], 2
jmp 0x59c4eb
mov dword [ebp - 0x10], 1
jmp 0x59c4eb
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 0x59c53e
je 0x59c535
cmp eax, ebx
je 0x59c535
cmp eax, edi
je 0x59c52c
cmp eax, 0x200
je 0x59c5b1
cmp eax, 0x300
jne 0x59c463
mov dword [ebp - 0x14], 2
jmp 0x59c55b
mov dword [ebp - 0x14], 4
jmp 0x59c55b
mov dword [ebp - 0x14], 3
jmp 0x59c55b
cmp eax, 0x500
je 0x59c554
cmp eax, 0x600
je 0x59c5b1
cmp eax, edx
jne 0x59c463
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x59c57f
mov ecx, dword [0x6e63f4]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x59c57f
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x59c59b
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x59c59b
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x59c5a4
or dword [ebp - 0xc], edi
test al, 0x20
je 0x59c5ba
or dword [ebp - 0xc], 0x8000000
jmp 0x59c5c5
mov dword [ebp - 0x14], 5
jmp 0x59c55b
test al, 0x10
je 0x59c5c5
or dword [ebp - 0xc], 0x10000000
call fcn.0059b4c0
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x59c5eb
call fcn.0057f4dd
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0057f4ca
mov dword [eax], 0x18
jmp 0x59c679
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 0x59c685
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x59c651
test byte [ebp + 0x10], 1
je 0x59c651
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 0x59c685
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x6e8740]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0057f4f0
pop ecx
call fcn.0057f4ca
mov eax, dword [eax]
jmp 0x59cb12
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x59c6d6
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x6e8740]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0057f4f0
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x59c679
call fcn.0057f4ca
mov dword [eax], 0xd
jmp 0x59c679
cmp eax, 2
jne 0x59c6e1
or byte [ebp - 1], 0x40
jmp 0x59c6ea
cmp eax, 3
jne 0x59c6ea
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0059b28f
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x6e8740]
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 + 0x6e8740]
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 0x59c7bf
test cl, 0x80
je 0x59c88f
test byte [ebp + 0x10], 2
je 0x59c7bf
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0058e854
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x59c77e
call fcn.0057f4dd
cmp dword [eax], 0x83
je 0x59c7bf
push dword [esi]
call fcn.0058ea8a
jmp 0x59c678
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00591503
add esp, 0xc
test eax, eax
jne 0x59c7af
cmp byte [ebp - 4], 0x1a
jne 0x59c7af
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.005a3cf1
add esp, 0xc
cmp eax, edi
je 0x59c772
push ebx
push ebx
push dword [esi]
call fcn.0058e854
add esp, 0xc
cmp eax, edi
je 0x59c772
test byte [ebp - 1], 0x80
je 0x59c88f
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x59c7e7
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x59c7e4
or dword [ebp + 0x10], edi
jmp 0x59c7e7
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x59c834
cmp eax, 0x10000
je 0x59c820
cmp eax, 0x14000
je 0x59c820
cmp eax, 0x20000
je 0x59c82e
cmp eax, 0x24000
je 0x59c82e
cmp eax, 0x40000
je 0x59c81a
cmp eax, 0x44000
jne 0x59c837
mov byte [ebp - 2], 1
jmp 0x59c837
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x59c837
mov byte [ebp - 2], 2
jmp 0x59c837
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x59c88f
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x59c88f
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x59c9e9
cmp eax, 0x80000000
je 0x59c9b0
cmp eax, ecx
jne 0x59c88f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x59c88f
cmp eax, 2
jbe 0x59ca91
cmp eax, 4
jbe 0x59c982
cmp eax, 5
je 0x59ca91
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6e8740]
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 + 0x6e8740]
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 0x59c901
test byte [ebp + 0x10], 8
je 0x59c901
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6e8740]
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 0x59cb10
test byte [ebp + 0x10], 1
je 0x59cb10
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 0x59caf9
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0057f4f0
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6e8740]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0059b30c
pop ecx
jmp 0x59c678
push 2
push ebx
push ebx
push dword [esi]
call fcn.0059aef2
add esp, 0x10
or eax, edx
je 0x59ca91
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0059aef2
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x59c772
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00591503
add esp, 0xc
cmp eax, 0xffffffff
je 0x59c772
cmp eax, 2
je 0x59ca35
cmp eax, 3
jne 0x59ca83
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x59ca35
mov byte [ebp - 2], 1
jmp 0x59c88f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x59c88f
cmp eax, 2
jbe 0x59ca91
cmp eax, 4
ja 0x59c886
push 2
push ebx
push ebx
push dword [esi]
call fcn.0059aef2
add esp, 0x10
or eax, edx
je 0x59ca91
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0059aef2
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x59c88f
jmp 0x59c772
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x59ca5d
push dword [esi]
call fcn.0058ea8a
pop ecx
call fcn.0057f4ca
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x59cb12
cmp eax, 0xfeff
jne 0x59ca83
push ebx
push 2
push dword [esi]
call fcn.0058e854
add esp, 0xc
cmp eax, 0xffffffff
je 0x59c772
mov byte [ebp - 2], 2
jmp 0x59c88f
push ebx
push ebx
push dword [esi]
call fcn.0058e854
add esp, 0xc
jmp 0x59ca27
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x59cab1
dec eax
jne 0x59c88f
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x59cabf
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.0058d315
add esp, 0xc
cmp eax, 0xffffffff
je 0x59cae5
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x59cabf
jmp 0x59c88f
push dword [esi]
call fcn.0058ea8a
pop ecx
call fcn.0057f4ca
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x59cb12
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6e8740]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret