Function at 0x42731a
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 0x427349
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x427353
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0042b750
test eax, eax
pop ecx
je 0x42736e
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00415864
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0041b88b
test eax, eax
pop ecx
je 0x427389
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00415864
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4273a6
test ecx, 0x74000
jne 0x4273a2
cmp dword [ebp - 0x24], eax
je 0x4273a6
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x427400
dec eax
je 0x4273ea
dec eax
je 0x4273e5
call fcn.00419d03
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00419cf0
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00415960
add esp, 0x14
jmp 0x4279b2
mov dword [ebp - 8], edx
jmp 0x427403
test cl, 8
je 0x4273f7
test ecx, 0x70000
jne 0x4273e5
mov dword [ebp - 8], 0x40000000
jmp 0x427403
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x427444
sub eax, ecx
je 0x42743b
sub eax, ecx
je 0x427432
sub eax, ecx
je 0x427429
sub eax, 0x40
jne 0x4273bf
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x427447
mov dword [ebp - 0x10], 3
jmp 0x427447
mov dword [ebp - 0x10], 2
jmp 0x427447
mov dword [ebp - 0x10], 1
jmp 0x427447
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 0x42749a
je 0x427491
cmp eax, ebx
je 0x427491
cmp eax, edi
je 0x427488
cmp eax, 0x200
je 0x42750d
cmp eax, 0x300
jne 0x4273bf
mov dword [ebp - 0x14], 2
jmp 0x4274b7
mov dword [ebp - 0x14], 4
jmp 0x4274b7
mov dword [ebp - 0x14], 3
jmp 0x4274b7
cmp eax, 0x500
je 0x4274b0
cmp eax, 0x600
je 0x42750d
cmp eax, edx
jne 0x4273bf
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4274db
mov ecx, dword [0x44f550]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4274db
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4274f7
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4274f7
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x427500
or dword [ebp - 0xc], edi
test al, 0x20
je 0x427516
or dword [ebp - 0xc], 0x8000000
jmp 0x427521
mov dword [ebp - 0x14], 5
jmp 0x4274b7
test al, 0x10
je 0x427521
or dword [ebp - 0xc], 0x10000000
call fcn.0042596e
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x427547
call fcn.00419d03
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00419cf0
mov dword [eax], 0x18
jmp 0x4275d5
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 0x4275e1
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4275ad
test byte [ebp + 0x10], 1
je 0x4275ad
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 0x4275e1
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x450e80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00419d16
pop ecx
call fcn.00419cf0
mov eax, dword [eax]
jmp 0x427a6e
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x427632
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x450e80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00419d16
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4275d5
call fcn.00419cf0
mov dword [eax], 0xd
jmp 0x4275d5
cmp eax, 2
jne 0x42763d
or byte [ebp - 1], 0x40
jmp 0x427646
cmp eax, 3
jne 0x427646
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0042573d
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x450e80]
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 + 0x450e80]
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 0x42771b
test cl, 0x80
je 0x4277eb
test byte [ebp + 0x10], 2
je 0x42771b
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0041fc26
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4276da
call fcn.00419d03
cmp dword [eax], 0x83
je 0x42771b
push dword [esi]
call fcn.0041fff4
jmp 0x4275d4
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0042231b
add esp, 0xc
test eax, eax
jne 0x42770b
cmp byte [ebp - 4], 0x1a
jne 0x42770b
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0042b4e0
add esp, 0xc
cmp eax, edi
je 0x4276ce
push ebx
push ebx
push dword [esi]
call fcn.0041fc26
add esp, 0xc
cmp eax, edi
je 0x4276ce
test byte [ebp - 1], 0x80
je 0x4277eb
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x427743
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x427740
or dword [ebp + 0x10], edi
jmp 0x427743
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x427790
cmp eax, 0x10000
je 0x42777c
cmp eax, 0x14000
je 0x42777c
cmp eax, 0x20000
je 0x42778a
cmp eax, 0x24000
je 0x42778a
cmp eax, 0x40000
je 0x427776
cmp eax, 0x44000
jne 0x427793
mov byte [ebp - 2], 1
jmp 0x427793
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x427793
mov byte [ebp - 2], 2
jmp 0x427793
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4277eb
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4277eb
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x427945
cmp eax, 0x80000000
je 0x42790c
cmp eax, ecx
jne 0x4277eb
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4277eb
cmp eax, 2
jbe 0x4279ed
cmp eax, 4
jbe 0x4278de
cmp eax, 5
je 0x4279ed
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x450e80]
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 + 0x450e80]
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 0x42785d
test byte [ebp + 0x10], 8
je 0x42785d
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x450e80]
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 0x427a6c
test byte [ebp + 0x10], 1
je 0x427a6c
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 0x427a55
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00419d16
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x450e80]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004257ba
pop ecx
jmp 0x4275d4
push 2
push ebx
push ebx
push dword [esi]
call fcn.00424c33
add esp, 0x10
or eax, edx
je 0x4279ed
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00424c33
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4276ce
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0042231b
add esp, 0xc
cmp eax, 0xffffffff
je 0x4276ce
cmp eax, 2
je 0x427991
cmp eax, 3
jne 0x4279df
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x427991
mov byte [ebp - 2], 1
jmp 0x4277eb
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4277eb
cmp eax, 2
jbe 0x4279ed
cmp eax, 4
ja 0x4277e2
push 2
push ebx
push ebx
push dword [esi]
call fcn.00424c33
add esp, 0x10
or eax, edx
je 0x4279ed
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00424c33
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4277eb
jmp 0x4276ce
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4279b9
push dword [esi]
call fcn.0041fff4
pop ecx
call fcn.00419cf0
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x427a6e
cmp eax, 0xfeff
jne 0x4279df
push ebx
push 2
push dword [esi]
call fcn.0041fc26
add esp, 0xc
cmp eax, 0xffffffff
je 0x4276ce
mov byte [ebp - 2], 2
jmp 0x4277eb
push ebx
push ebx
push dword [esi]
call fcn.0041fc26
add esp, 0xc
jmp 0x427983
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x427a0d
dec eax
jne 0x4277eb
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x427a1b
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.0041f717
add esp, 0xc
cmp eax, 0xffffffff
je 0x427a41
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x427a1b
jmp 0x4277eb
push dword [esi]
call fcn.0041fff4
pop ecx
call fcn.00419cf0
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x427a6e
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x450e80]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret