Function at 0x4a745e
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 0x4a748d
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4a7497
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004aa22f
test eax, eax
pop ecx
je 0x4a74b2
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048c203
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00498cf7
test eax, eax
pop ecx
je 0x4a74cd
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048c203
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4a74ea
test ecx, 0x74000
jne 0x4a74e6
cmp dword [ebp - 0x24], eax
je 0x4a74ea
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4a7544
dec eax
je 0x4a752e
dec eax
je 0x4a7529
call fcn.0048f6ae
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0048f69b
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0048c2ff
add esp, 0x14
jmp 0x4a7af7
mov dword [ebp - 8], edx
jmp 0x4a7547
test cl, 8
je 0x4a753b
test ecx, 0x70000
jne 0x4a7529
mov dword [ebp - 8], 0x40000000
jmp 0x4a7547
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4a7588
sub eax, ecx
je 0x4a757f
sub eax, ecx
je 0x4a7576
sub eax, ecx
je 0x4a756d
sub eax, 0x40
jne 0x4a7503
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4a758b
mov dword [ebp - 0x10], 3
jmp 0x4a758b
mov dword [ebp - 0x10], 2
jmp 0x4a758b
mov dword [ebp - 0x10], 1
jmp 0x4a758b
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 0x4a75de
je 0x4a75d5
cmp eax, ebx
je 0x4a75d5
cmp eax, edi
je 0x4a75cc
cmp eax, 0x200
je 0x4a7651
cmp eax, 0x300
jne 0x4a7503
mov dword [ebp - 0x14], 2
jmp 0x4a75fb
mov dword [ebp - 0x14], 4
jmp 0x4a75fb
mov dword [ebp - 0x14], 3
jmp 0x4a75fb
cmp eax, 0x500
je 0x4a75f4
cmp eax, 0x600
je 0x4a7651
cmp eax, edx
jne 0x4a7503
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4a761f
mov ecx, dword [0x4dd8c8]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4a761f
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4a763b
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4a763b
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4a7644
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4a765a
or dword [ebp - 0xc], 0x8000000
jmp 0x4a7665
mov dword [ebp - 0x14], 5
jmp 0x4a75fb
test al, 0x10
je 0x4a7665
or dword [ebp - 0xc], 0x10000000
call fcn.004a713f
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4a768b
call fcn.0048f6ae
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0048f69b
mov dword [eax], 0x18
jmp 0x4a7719
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 0x4a7725
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4a76f1
test byte [ebp + 0x10], 1
je 0x4a76f1
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 0x4a7725
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4df1e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.DLL_GetLastError]
push eax
call fcn.0048f6c1
pop ecx
call fcn.0048f69b
mov eax, dword [eax]
jmp 0x4a7bb3
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_GetFileType]
cmp eax, ebx
jne 0x4a7776
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4df1e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.DLL_GetLastError]
mov esi, eax
push esi
call fcn.0048f6c1
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_CloseHandle]
cmp esi, ebx
jne 0x4a7719
call fcn.0048f69b
mov dword [eax], 0xd
jmp 0x4a7719
cmp eax, 2
jne 0x4a7781
or byte [ebp - 1], 0x40
jmp 0x4a778a
cmp eax, 3
jne 0x4a778a
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004a6f0e
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4df1e0]
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 + 0x4df1e0]
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 0x4a7860
test cl, 0x80
je 0x4a7930
test byte [ebp + 0x10], 2
je 0x4a7860
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004a00cf
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4a781e
call fcn.0048f6ae
cmp dword [eax], 0x83
je 0x4a7860
push dword [esi]
call fcn.0049f66c
jmp 0x4a7718
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.0049ede0
add esp, 0xc
test eax, eax
jne 0x4a7850
cmp word [ebp - 0x2c], 0x1a
jne 0x4a7850
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004a9fbf
add esp, 0xc
cmp eax, edi
je 0x4a7812
push ebx
push ebx
push dword [esi]
call fcn.004a00cf
add esp, 0xc
cmp eax, edi
je 0x4a7812
test byte [ebp - 1], 0x80
je 0x4a7930
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4a7888
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4a7885
or dword [ebp + 0x10], edi
jmp 0x4a7888
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4a78d5
cmp eax, 0x10000
je 0x4a78c1
cmp eax, 0x14000
je 0x4a78c1
cmp eax, 0x20000
je 0x4a78cf
cmp eax, 0x24000
je 0x4a78cf
cmp eax, 0x40000
je 0x4a78bb
cmp eax, 0x44000
jne 0x4a78d8
mov byte [ebp - 2], 1
jmp 0x4a78d8
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4a78d8
mov byte [ebp - 2], 2
jmp 0x4a78d8
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4a7930
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4a7930
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4a7a8a
cmp eax, 0x80000000
je 0x4a7a51
cmp eax, ecx
jne 0x4a7930
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a7930
cmp eax, 2
jbe 0x4a7b32
cmp eax, 4
jbe 0x4a7a23
cmp eax, 5
je 0x4a7b32
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4df1e0]
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 + 0x4df1e0]
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 0x4a79a2
test byte [ebp + 0x10], 8
je 0x4a79a2
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4df1e0]
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 0x4a7bb1
test byte [ebp + 0x10], 1
je 0x4a7bb1
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 0x4a7b9a
call dword [sym.imp.KERNEL32.DLL_GetLastError]
push eax
call fcn.0048f6c1
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4df1e0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004a6f8b
pop ecx
jmp 0x4a7718
push 2
push ebx
push ebx
push dword [esi]
call fcn.004a4926
add esp, 0x10
or eax, edx
je 0x4a7b32
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004a4926
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4a7812
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0049ede0
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a7812
cmp eax, 2
je 0x4a7ad6
cmp eax, 3
jne 0x4a7b24
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4a7ad6
mov byte [ebp - 2], 1
jmp 0x4a7930
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a7930
cmp eax, 2
jbe 0x4a7b32
cmp eax, 4
ja 0x4a7927
push 2
push ebx
push ebx
push dword [esi]
call fcn.004a4926
add esp, 0x10
or eax, edx
je 0x4a7b32
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004a4926
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4a7930
jmp 0x4a7812
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4a7afe
push dword [esi]
call fcn.0049f66c
pop ecx
call fcn.0048f69b
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4a7bb3
cmp eax, 0xfeff
jne 0x4a7b24
push ebx
push 2
push dword [esi]
call fcn.004a00cf
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a7812
mov byte [ebp - 2], 2
jmp 0x4a7930
push ebx
push ebx
push dword [esi]
call fcn.004a00cf
add esp, 0xc
jmp 0x4a7ac8
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4a7b52
dec eax
jne 0x4a7930
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4a7b60
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.004a2cb4
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a7b86
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4a7b60
jmp 0x4a7930
push dword [esi]
call fcn.0049f66c
pop ecx
call fcn.0048f69b
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4a7bb3
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4df1e0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret