Function at 0x4894e2
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 0x489511
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x48951b
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0048d16e
test eax, eax
pop ecx
je 0x489536
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004788ae
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0047e60b
test eax, eax
pop ecx
je 0x489551
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004788ae
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x48956e
test ecx, 0x74000
jne 0x48956a
cmp dword [ebp - 0x24], eax
je 0x48956e
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4895c8
dec eax
je 0x4895b2
dec eax
je 0x4895ad
call fcn.0047ce2b
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0047ce18
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004789aa
add esp, 0x14
jmp 0x489b7b
mov dword [ebp - 8], edx
jmp 0x4895cb
test cl, 8
je 0x4895bf
test ecx, 0x70000
jne 0x4895ad
mov dword [ebp - 8], 0x40000000
jmp 0x4895cb
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x48960c
sub eax, ecx
je 0x489603
sub eax, ecx
je 0x4895fa
sub eax, ecx
je 0x4895f1
sub eax, 0x40
jne 0x489587
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x48960f
mov dword [ebp - 0x10], 3
jmp 0x48960f
mov dword [ebp - 0x10], 2
jmp 0x48960f
mov dword [ebp - 0x10], 1
jmp 0x48960f
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 0x489662
je 0x489659
cmp eax, ebx
je 0x489659
cmp eax, edi
je 0x489650
cmp eax, 0x200
je 0x4896d5
cmp eax, 0x300
jne 0x489587
mov dword [ebp - 0x14], 2
jmp 0x48967f
mov dword [ebp - 0x14], 4
jmp 0x48967f
mov dword [ebp - 0x14], 3
jmp 0x48967f
cmp eax, 0x500
je 0x489678
cmp eax, 0x600
je 0x4896d5
cmp eax, edx
jne 0x489587
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4896a3
mov ecx, dword [0x4b3508]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4896a3
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4896bf
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4896bf
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4896c8
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4896de
or dword [ebp - 0xc], 0x8000000
jmp 0x4896e9
mov dword [ebp - 0x14], 5
jmp 0x48967f
test al, 0x10
je 0x4896e9
or dword [ebp - 0xc], 0x10000000
call fcn.00489f57
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x48970f
call fcn.0047ce2b
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0047ce18
mov dword [eax], 0x18
jmp 0x48979d
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 0x4897a9
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x489775
test byte [ebp + 0x10], 1
je 0x489775
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 0x4897a9
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4b3e00]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047ce3e
pop ecx
call fcn.0047ce18
mov eax, dword [eax]
jmp 0x489c37
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4897fa
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4b3e00]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0047ce3e
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x48979d
call fcn.0047ce18
mov dword [eax], 0xd
jmp 0x48979d
cmp eax, 2
jne 0x489805
or byte [ebp - 1], 0x40
jmp 0x48980e
cmp eax, 3
jne 0x48980e
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00489d26
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4b3e00]
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 + 0x4b3e00]
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 0x4898e4
test cl, 0x80
je 0x4899b4
test byte [ebp + 0x10], 2
je 0x4898e4
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004867de
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4898a2
call fcn.0047ce2b
cmp dword [eax], 0x83
je 0x4898e4
push dword [esi]
call fcn.0047f223
jmp 0x48979c
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.0048026c
add esp, 0xc
test eax, eax
jne 0x4898d4
cmp word [ebp - 0x2c], 0x1a
jne 0x4898d4
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0048cefe
add esp, 0xc
cmp eax, edi
je 0x489896
push ebx
push ebx
push dword [esi]
call fcn.004867de
add esp, 0xc
cmp eax, edi
je 0x489896
test byte [ebp - 1], 0x80
je 0x4899b4
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x48990c
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x489909
or dword [ebp + 0x10], edi
jmp 0x48990c
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x489959
cmp eax, 0x10000
je 0x489945
cmp eax, 0x14000
je 0x489945
cmp eax, 0x20000
je 0x489953
cmp eax, 0x24000
je 0x489953
cmp eax, 0x40000
je 0x48993f
cmp eax, 0x44000
jne 0x48995c
mov byte [ebp - 2], 1
jmp 0x48995c
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x48995c
mov byte [ebp - 2], 2
jmp 0x48995c
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4899b4
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4899b4
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x489b0e
cmp eax, 0x80000000
je 0x489ad5
cmp eax, ecx
jne 0x4899b4
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4899b4
cmp eax, 2
jbe 0x489bb6
cmp eax, 4
jbe 0x489aa7
cmp eax, 5
je 0x489bb6
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4b3e00]
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 + 0x4b3e00]
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 0x489a26
test byte [ebp + 0x10], 8
je 0x489a26
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4b3e00]
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 0x489c35
test byte [ebp + 0x10], 1
je 0x489c35
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 0x489c1e
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047ce3e
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4b3e00]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00489da3
pop ecx
jmp 0x48979c
push 2
push ebx
push ebx
push dword [esi]
call fcn.00487dd3
add esp, 0x10
or eax, edx
je 0x489bb6
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00487dd3
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x489896
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0048026c
add esp, 0xc
cmp eax, 0xffffffff
je 0x489896
cmp eax, 2
je 0x489b5a
cmp eax, 3
jne 0x489ba8
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x489b5a
mov byte [ebp - 2], 1
jmp 0x4899b4
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4899b4
cmp eax, 2
jbe 0x489bb6
cmp eax, 4
ja 0x4899ab
push 2
push ebx
push ebx
push dword [esi]
call fcn.00487dd3
add esp, 0x10
or eax, edx
je 0x489bb6
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00487dd3
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4899b4
jmp 0x489896
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x489b82
push dword [esi]
call fcn.0047f223
pop ecx
call fcn.0047ce18
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x489c37
cmp eax, 0xfeff
jne 0x489ba8
push ebx
push 2
push dword [esi]
call fcn.004867de
add esp, 0xc
cmp eax, 0xffffffff
je 0x489896
mov byte [ebp - 2], 2
jmp 0x4899b4
push ebx
push ebx
push dword [esi]
call fcn.004867de
add esp, 0xc
jmp 0x489b4c
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x489bd6
dec eax
jne 0x4899b4
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x489be4
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.00483af0
add esp, 0xc
cmp eax, 0xffffffff
je 0x489c0a
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x489be4
jmp 0x4899b4
push dword [esi]
call fcn.0047f223
pop ecx
call fcn.0047ce18
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x489c37
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4b3e00]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret