Function at 0x5079d7
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 0x507a06
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x507a10
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004f6151
test eax, eax
pop ecx
je 0x507a2b
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004edbee
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004f3a13
test eax, eax
pop ecx
je 0x507a46
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004edbee
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x507a63
test ecx, 0x74000
jne 0x507a5f
cmp dword [ebp - 0x24], eax
je 0x507a63
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x507abd
dec eax
je 0x507aa7
dec eax
je 0x507aa2
call fcn.004f5033
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004f5020
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004edcea
add esp, 0x14
jmp 0x508070
mov dword [ebp - 8], edx
jmp 0x507ac0
test cl, 8
je 0x507ab4
test ecx, 0x70000
jne 0x507aa2
mov dword [ebp - 8], 0x40000000
jmp 0x507ac0
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x507b01
sub eax, ecx
je 0x507af8
sub eax, ecx
je 0x507aef
sub eax, ecx
je 0x507ae6
sub eax, 0x40
jne 0x507a7c
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x507b04
mov dword [ebp - 0x10], 3
jmp 0x507b04
mov dword [ebp - 0x10], 2
jmp 0x507b04
mov dword [ebp - 0x10], 1
jmp 0x507b04
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 0x507b57
je 0x507b4e
cmp eax, ebx
je 0x507b4e
cmp eax, edi
je 0x507b45
cmp eax, 0x200
je 0x507bca
cmp eax, 0x300
jne 0x507a7c
mov dword [ebp - 0x14], 2
jmp 0x507b74
mov dword [ebp - 0x14], 4
jmp 0x507b74
mov dword [ebp - 0x14], 3
jmp 0x507b74
cmp eax, 0x500
je 0x507b6d
cmp eax, 0x600
je 0x507bca
cmp eax, edx
jne 0x507a7c
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x507b98
mov ecx, dword [0x55bb34]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x507b98
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x507bb4
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x507bb4
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x507bbd
or dword [ebp - 0xc], edi
test al, 0x20
je 0x507bd3
or dword [ebp - 0xc], 0x8000000
jmp 0x507bde
mov dword [ebp - 0x14], 5
jmp 0x507b74
test al, 0x10
je 0x507bde
or dword [ebp - 0xc], 0x10000000
call fcn.004f0f2b
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x507c04
call fcn.004f5033
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004f5020
mov dword [eax], 0x18
jmp 0x507c92
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 0x507c9e
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x507c6a
test byte [ebp + 0x10], 1
je 0x507c6a
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 0x507c9e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x55ce80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004f5046
pop ecx
call fcn.004f5020
mov eax, dword [eax]
jmp 0x50812c
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x507cef
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x55ce80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004f5046
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x507c92
call fcn.004f5020
mov dword [eax], 0xd
jmp 0x507c92
cmp eax, 2
jne 0x507cfa
or byte [ebp - 1], 0x40
jmp 0x507d03
cmp eax, 3
jne 0x507d03
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004f0cfa
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x55ce80]
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 + 0x55ce80]
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 0x507dd9
test cl, 0x80
je 0x507ea9
test byte [ebp + 0x10], 2
je 0x507dd9
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004fb4dc
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x507d97
call fcn.004f5033
cmp dword [eax], 0x83
je 0x507dd9
push dword [esi]
call fcn.004fb0bb
jmp 0x507c91
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.004fc4a5
add esp, 0xc
test eax, eax
jne 0x507dc9
cmp word [ebp - 0x2c], 0x1a
jne 0x507dc9
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004f07db
add esp, 0xc
cmp eax, edi
je 0x507d8b
push ebx
push ebx
push dword [esi]
call fcn.004fb4dc
add esp, 0xc
cmp eax, edi
je 0x507d8b
test byte [ebp - 1], 0x80
je 0x507ea9
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x507e01
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x507dfe
or dword [ebp + 0x10], edi
jmp 0x507e01
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x507e4e
cmp eax, 0x10000
je 0x507e3a
cmp eax, 0x14000
je 0x507e3a
cmp eax, 0x20000
je 0x507e48
cmp eax, 0x24000
je 0x507e48
cmp eax, 0x40000
je 0x507e34
cmp eax, 0x44000
jne 0x507e51
mov byte [ebp - 2], 1
jmp 0x507e51
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x507e51
mov byte [ebp - 2], 2
jmp 0x507e51
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x507ea9
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x507ea9
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x508003
cmp eax, 0x80000000
je 0x507fca
cmp eax, ecx
jne 0x507ea9
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x507ea9
cmp eax, 2
jbe 0x5080ab
cmp eax, 4
jbe 0x507f9c
cmp eax, 5
je 0x5080ab
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x55ce80]
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 + 0x55ce80]
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 0x507f1b
test byte [ebp + 0x10], 8
je 0x507f1b
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x55ce80]
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 0x50812a
test byte [ebp + 0x10], 1
je 0x50812a
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 0x508113
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004f5046
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x55ce80]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004f0d77
pop ecx
jmp 0x507c91
push 2
push ebx
push ebx
push dword [esi]
call fcn.00501841
add esp, 0x10
or eax, edx
je 0x5080ab
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00501841
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x507d8b
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004fc4a5
add esp, 0xc
cmp eax, 0xffffffff
je 0x507d8b
cmp eax, 2
je 0x50804f
cmp eax, 3
jne 0x50809d
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x50804f
mov byte [ebp - 2], 1
jmp 0x507ea9
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x507ea9
cmp eax, 2
jbe 0x5080ab
cmp eax, 4
ja 0x507ea0
push 2
push ebx
push ebx
push dword [esi]
call fcn.00501841
add esp, 0x10
or eax, edx
je 0x5080ab
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00501841
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x507ea9
jmp 0x507d8b
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x508077
push dword [esi]
call fcn.004fb0bb
pop ecx
call fcn.004f5020
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x50812c
cmp eax, 0xfeff
jne 0x50809d
push ebx
push 2
push dword [esi]
call fcn.004fb4dc
add esp, 0xc
cmp eax, 0xffffffff
je 0x507d8b
mov byte [ebp - 2], 2
jmp 0x507ea9
push ebx
push ebx
push dword [esi]
call fcn.004fb4dc
add esp, 0xc
jmp 0x508041
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x5080cb
dec eax
jne 0x507ea9
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x5080d9
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.00501684
add esp, 0xc
cmp eax, 0xffffffff
je 0x5080ff
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x5080d9
jmp 0x507ea9
push dword [esi]
call fcn.004fb0bb
pop ecx
call fcn.004f5020
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x50812c
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x55ce80]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret