Function at 0x59f803
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 0x59f832
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x59f83c
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.005a40ac
test eax, eax
pop ecx
je 0x59f857
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 0x59f872
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 0x59f88f
test ecx, 0x74000
jne 0x59f88b
cmp dword [ebp - 0x24], eax
je 0x59f88f
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x59f8e9
dec eax
je 0x59f8d3
dec eax
je 0x59f8ce
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 0x59fe9c
mov dword [ebp - 8], edx
jmp 0x59f8ec
test cl, 8
je 0x59f8e0
test ecx, 0x70000
jne 0x59f8ce
mov dword [ebp - 8], 0x40000000
jmp 0x59f8ec
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x59f92d
sub eax, ecx
je 0x59f924
sub eax, ecx
je 0x59f91b
sub eax, ecx
je 0x59f912
sub eax, 0x40
jne 0x59f8a8
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x59f930
mov dword [ebp - 0x10], 3
jmp 0x59f930
mov dword [ebp - 0x10], 2
jmp 0x59f930
mov dword [ebp - 0x10], 1
jmp 0x59f930
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 0x59f983
je 0x59f97a
cmp eax, ebx
je 0x59f97a
cmp eax, edi
je 0x59f971
cmp eax, 0x200
je 0x59f9f6
cmp eax, 0x300
jne 0x59f8a8
mov dword [ebp - 0x14], 2
jmp 0x59f9a0
mov dword [ebp - 0x14], 4
jmp 0x59f9a0
mov dword [ebp - 0x14], 3
jmp 0x59f9a0
cmp eax, 0x500
je 0x59f999
cmp eax, 0x600
je 0x59f9f6
cmp eax, edx
jne 0x59f8a8
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x59f9c4
mov ecx, dword [0x6e63f4]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x59f9c4
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x59f9e0
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x59f9e0
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x59f9e9
or dword [ebp - 0xc], edi
test al, 0x20
je 0x59f9ff
or dword [ebp - 0xc], 0x8000000
jmp 0x59fa0a
mov dword [ebp - 0x14], 5
jmp 0x59f9a0
test al, 0x10
je 0x59fa0a
or dword [ebp - 0xc], 0x10000000
call fcn.0059b4c0
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x59fa30
call fcn.0057f4dd
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0057f4ca
mov dword [eax], 0x18
jmp 0x59fabe
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 0x59faca
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x59fa96
test byte [ebp + 0x10], 1
je 0x59fa96
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 0x59faca
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 0x59ff58
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x59fb1b
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 0x59fabe
call fcn.0057f4ca
mov dword [eax], 0xd
jmp 0x59fabe
cmp eax, 2
jne 0x59fb26
or byte [ebp - 1], 0x40
jmp 0x59fb2f
cmp eax, 3
jne 0x59fb2f
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 0x59fc05
test cl, 0x80
je 0x59fcd5
test byte [ebp + 0x10], 2
je 0x59fc05
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 0x59fbc3
call fcn.0057f4dd
cmp dword [eax], 0x83
je 0x59fc05
push dword [esi]
call fcn.0058ea8a
jmp 0x59fabd
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00591503
add esp, 0xc
test eax, eax
jne 0x59fbf5
cmp word [ebp - 0x2c], 0x1a
jne 0x59fbf5
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.005a3cf1
add esp, 0xc
cmp eax, edi
je 0x59fbb7
push ebx
push ebx
push dword [esi]
call fcn.0058e854
add esp, 0xc
cmp eax, edi
je 0x59fbb7
test byte [ebp - 1], 0x80
je 0x59fcd5
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x59fc2d
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x59fc2a
or dword [ebp + 0x10], edi
jmp 0x59fc2d
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x59fc7a
cmp eax, 0x10000
je 0x59fc66
cmp eax, 0x14000
je 0x59fc66
cmp eax, 0x20000
je 0x59fc74
cmp eax, 0x24000
je 0x59fc74
cmp eax, 0x40000
je 0x59fc60
cmp eax, 0x44000
jne 0x59fc7d
mov byte [ebp - 2], 1
jmp 0x59fc7d
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x59fc7d
mov byte [ebp - 2], 2
jmp 0x59fc7d
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x59fcd5
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x59fcd5
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x59fe2f
cmp eax, 0x80000000
je 0x59fdf6
cmp eax, ecx
jne 0x59fcd5
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x59fcd5
cmp eax, 2
jbe 0x59fed7
cmp eax, 4
jbe 0x59fdc8
cmp eax, 5
je 0x59fed7
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 0x59fd47
test byte [ebp + 0x10], 8
je 0x59fd47
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 0x59ff56
test byte [ebp + 0x10], 1
je 0x59ff56
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 0x59ff3f
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 0x59fabd
push 2
push ebx
push ebx
push dword [esi]
call fcn.0059aef2
add esp, 0x10
or eax, edx
je 0x59fed7
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0059aef2
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x59fbb7
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00591503
add esp, 0xc
cmp eax, 0xffffffff
je 0x59fbb7
cmp eax, 2
je 0x59fe7b
cmp eax, 3
jne 0x59fec9
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x59fe7b
mov byte [ebp - 2], 1
jmp 0x59fcd5
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x59fcd5
cmp eax, 2
jbe 0x59fed7
cmp eax, 4
ja 0x59fccc
push 2
push ebx
push ebx
push dword [esi]
call fcn.0059aef2
add esp, 0x10
or eax, edx
je 0x59fed7
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0059aef2
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x59fcd5
jmp 0x59fbb7
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x59fea3
push dword [esi]
call fcn.0058ea8a
pop ecx
call fcn.0057f4ca
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x59ff58
cmp eax, 0xfeff
jne 0x59fec9
push ebx
push 2
push dword [esi]
call fcn.0058e854
add esp, 0xc
cmp eax, 0xffffffff
je 0x59fbb7
mov byte [ebp - 2], 2
jmp 0x59fcd5
push ebx
push ebx
push dword [esi]
call fcn.0058e854
add esp, 0xc
jmp 0x59fe6d
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x59fef7
dec eax
jne 0x59fcd5
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x59ff05
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 0x59ff2b
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x59ff05
jmp 0x59fcd5
push dword [esi]
call fcn.0058ea8a
pop ecx
call fcn.0057f4ca
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x59ff58
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