Function at 0x4aa39c
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 0x4aa3cb
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4aa3d5
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004af402
test eax, eax
pop ecx
je 0x4aa3f0
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00488adc
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0048b3d0
test eax, eax
pop ecx
je 0x4aa40b
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00488adc
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4aa428
test ecx, 0x74000
jne 0x4aa424
cmp dword [ebp - 0x24], eax
je 0x4aa428
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x4aa482
dec eax
je 0x4aa46c
dec eax
je 0x4aa467
call fcn.0048afd8
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0048afc5
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00488c10
add esp, 0x14
jmp 0x4aaa35
mov dword [ebp - 8], edx
jmp 0x4aa485
test cl, 8
je 0x4aa479
test ecx, 0x70000
jne 0x4aa467
mov dword [ebp - 8], 0x40000000
jmp 0x4aa485
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4aa4c6
sub eax, ecx
je 0x4aa4bd
sub eax, ecx
je 0x4aa4b4
sub eax, ecx
je 0x4aa4ab
sub eax, 0x40
jne 0x4aa441
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4aa4c9
mov dword [ebp - 0x10], 3
jmp 0x4aa4c9
mov dword [ebp - 0x10], 2
jmp 0x4aa4c9
mov dword [ebp - 0x10], 1
jmp 0x4aa4c9
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 0x4aa51c
je 0x4aa513
cmp eax, ebx
je 0x4aa513
cmp eax, edi
je 0x4aa50a
cmp eax, 0x200
je 0x4aa58f
cmp eax, 0x300
jne 0x4aa441
mov dword [ebp - 0x14], 2
jmp 0x4aa539
mov dword [ebp - 0x14], 4
jmp 0x4aa539
mov dword [ebp - 0x14], 3
jmp 0x4aa539
cmp eax, 0x500
je 0x4aa532
cmp eax, 0x600
je 0x4aa58f
cmp eax, edx
jne 0x4aa441
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4aa55d
mov ecx, dword [0x4ef0fc]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4aa55d
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4aa579
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4aa579
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4aa582
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4aa598
or dword [ebp - 0xc], 0x8000000
jmp 0x4aa5a3
mov dword [ebp - 0x14], 5
jmp 0x4aa539
test al, 0x10
je 0x4aa5a3
or dword [ebp - 0xc], 0x10000000
call fcn.004a9f68
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4aa5c9
call fcn.0048afd8
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0048afc5
mov dword [eax], 0x18
jmp 0x4aa657
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 0x4aa663
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4aa62f
test byte [ebp + 0x10], 1
je 0x4aa62f
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 0x4aa663
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4f0da0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0048afeb
pop ecx
call fcn.0048afc5
mov eax, dword [eax]
jmp 0x4aaaf1
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4aa6b4
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4f0da0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0048afeb
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4aa657
call fcn.0048afc5
mov dword [eax], 0xd
jmp 0x4aa657
cmp eax, 2
jne 0x4aa6bf
or byte [ebp - 1], 0x40
jmp 0x4aa6c8
cmp eax, 3
jne 0x4aa6c8
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004a9d37
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4f0da0]
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 + 0x4f0da0]
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 0x4aa79e
test cl, 0x80
je 0x4aa86e
test byte [ebp + 0x10], 2
je 0x4aa79e
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004af1b2
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4aa75c
call fcn.0048afd8
cmp dword [eax], 0x83
je 0x4aa79e
push dword [esi]
call fcn.004985c6
jmp 0x4aa656
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.004aeaf4
add esp, 0xc
test eax, eax
jne 0x4aa78e
cmp word [ebp - 0x2c], 0x1a
jne 0x4aa78e
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004ae83b
add esp, 0xc
cmp eax, edi
je 0x4aa750
push ebx
push ebx
push dword [esi]
call fcn.004af1b2
add esp, 0xc
cmp eax, edi
je 0x4aa750
test byte [ebp - 1], 0x80
je 0x4aa86e
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4aa7c6
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4aa7c3
or dword [ebp + 0x10], edi
jmp 0x4aa7c6
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4aa813
cmp eax, 0x10000
je 0x4aa7ff
cmp eax, 0x14000
je 0x4aa7ff
cmp eax, 0x20000
je 0x4aa80d
cmp eax, 0x24000
je 0x4aa80d
cmp eax, 0x40000
je 0x4aa7f9
cmp eax, 0x44000
jne 0x4aa816
mov byte [ebp - 2], 1
jmp 0x4aa816
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4aa816
mov byte [ebp - 2], 2
jmp 0x4aa816
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4aa86e
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4aa86e
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4aa9c8
cmp eax, 0x80000000
je 0x4aa98f
cmp eax, ecx
jne 0x4aa86e
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4aa86e
cmp eax, 2
jbe 0x4aaa70
cmp eax, 4
jbe 0x4aa961
cmp eax, 5
je 0x4aaa70
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4f0da0]
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 + 0x4f0da0]
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 0x4aa8e0
test byte [ebp + 0x10], 8
je 0x4aa8e0
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4f0da0]
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 0x4aaaef
test byte [ebp + 0x10], 1
je 0x4aaaef
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 0x4aaad8
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0048afeb
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4f0da0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004a9db4
pop ecx
jmp 0x4aa656
push 2
push ebx
push ebx
push dword [esi]
call fcn.004a1340
add esp, 0x10
or eax, edx
je 0x4aaa70
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004a1340
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4aa750
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004aeaf4
add esp, 0xc
cmp eax, 0xffffffff
je 0x4aa750
cmp eax, 2
je 0x4aaa14
cmp eax, 3
jne 0x4aaa62
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4aaa14
mov byte [ebp - 2], 1
jmp 0x4aa86e
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4aa86e
cmp eax, 2
jbe 0x4aaa70
cmp eax, 4
ja 0x4aa865
push 2
push ebx
push ebx
push dword [esi]
call fcn.004a1340
add esp, 0x10
or eax, edx
je 0x4aaa70
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004a1340
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4aa86e
jmp 0x4aa750
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4aaa3c
push dword [esi]
call fcn.004985c6
pop ecx
call fcn.0048afc5
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4aaaf1
cmp eax, 0xfeff
jne 0x4aaa62
push ebx
push 2
push dword [esi]
call fcn.004af1b2
add esp, 0xc
cmp eax, 0xffffffff
je 0x4aa750
mov byte [ebp - 2], 2
jmp 0x4aa86e
push ebx
push ebx
push dword [esi]
call fcn.004af1b2
add esp, 0xc
jmp 0x4aaa06
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4aaa90
dec eax
jne 0x4aa86e
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4aaa9e
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.004a1aa2
add esp, 0xc
cmp eax, 0xffffffff
je 0x4aaac4
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4aaa9e
jmp 0x4aa86e
push dword [esi]
call fcn.004985c6
pop ecx
call fcn.0048afc5
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4aaaf1
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4f0da0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret