Function at 0x4a21fb
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 0x4a222a
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4a2234
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0049d36e
test eax, eax
pop ecx
je 0x4a224f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004897ee
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0048c444
test eax, eax
pop ecx
je 0x4a226a
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004897ee
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4a2287
test ecx, 0x74000
jne 0x4a2283
cmp dword [ebp - 0x24], eax
je 0x4a2287
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4a22e1
dec eax
je 0x4a22cb
dec eax
je 0x4a22c6
call fcn.00490e8a
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00490e77
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004898ea
add esp, 0x14
jmp 0x4a2894
mov dword [ebp - 8], edx
jmp 0x4a22e4
test cl, 8
je 0x4a22d8
test ecx, 0x70000
jne 0x4a22c6
mov dword [ebp - 8], 0x40000000
jmp 0x4a22e4
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4a2325
sub eax, ecx
je 0x4a231c
sub eax, ecx
je 0x4a2313
sub eax, ecx
je 0x4a230a
sub eax, 0x40
jne 0x4a22a0
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4a2328
mov dword [ebp - 0x10], 3
jmp 0x4a2328
mov dword [ebp - 0x10], 2
jmp 0x4a2328
mov dword [ebp - 0x10], 1
jmp 0x4a2328
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 0x4a237b
je 0x4a2372
cmp eax, ebx
je 0x4a2372
cmp eax, edi
je 0x4a2369
cmp eax, 0x200
je 0x4a23ee
cmp eax, 0x300
jne 0x4a22a0
mov dword [ebp - 0x14], 2
jmp 0x4a2398
mov dword [ebp - 0x14], 4
jmp 0x4a2398
mov dword [ebp - 0x14], 3
jmp 0x4a2398
cmp eax, 0x500
je 0x4a2391
cmp eax, 0x600
je 0x4a23ee
cmp eax, edx
jne 0x4a22a0
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4a23bc
mov ecx, dword [0x50c8c0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4a23bc
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4a23d8
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4a23d8
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4a23e1
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4a23f7
or dword [ebp - 0xc], 0x8000000
jmp 0x4a2402
mov dword [ebp - 0x14], 5
jmp 0x4a2398
test al, 0x10
je 0x4a2402
or dword [ebp - 0xc], 0x10000000
call fcn.0048d391
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4a2428
call fcn.00490e8a
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00490e77
mov dword [eax], 0x18
jmp 0x4a24b6
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 0x4a24c2
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4a248e
test byte [ebp + 0x10], 1
je 0x4a248e
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 0x4a24c2
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x50e660]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.DLL_GetLastError]
push eax
call fcn.00490e9d
pop ecx
call fcn.00490e77
mov eax, dword [eax]
jmp 0x4a2950
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_GetFileType]
cmp eax, ebx
jne 0x4a2513
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x50e660]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.DLL_GetLastError]
mov esi, eax
push esi
call fcn.00490e9d
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_CloseHandle]
cmp esi, ebx
jne 0x4a24b6
call fcn.00490e77
mov dword [eax], 0xd
jmp 0x4a24b6
cmp eax, 2
jne 0x4a251e
or byte [ebp - 1], 0x40
jmp 0x4a2527
cmp eax, 3
jne 0x4a2527
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0048d160
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x50e660]
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 + 0x50e660]
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 0x4a25fd
test cl, 0x80
je 0x4a26cd
test byte [ebp + 0x10], 2
je 0x4a25fd
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00496168
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4a25bb
call fcn.00490e8a
cmp dword [eax], 0x83
je 0x4a25fd
push dword [esi]
call fcn.00495d47
jmp 0x4a24b5
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00497131
add esp, 0xc
test eax, eax
jne 0x4a25ed
cmp word [ebp - 0x2c], 0x1a
jne 0x4a25ed
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0048c723
add esp, 0xc
cmp eax, edi
je 0x4a25af
push ebx
push ebx
push dword [esi]
call fcn.00496168
add esp, 0xc
cmp eax, edi
je 0x4a25af
test byte [ebp - 1], 0x80
je 0x4a26cd
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4a2625
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4a2622
or dword [ebp + 0x10], edi
jmp 0x4a2625
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4a2672
cmp eax, 0x10000
je 0x4a265e
cmp eax, 0x14000
je 0x4a265e
cmp eax, 0x20000
je 0x4a266c
cmp eax, 0x24000
je 0x4a266c
cmp eax, 0x40000
je 0x4a2658
cmp eax, 0x44000
jne 0x4a2675
mov byte [ebp - 2], 1
jmp 0x4a2675
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4a2675
mov byte [ebp - 2], 2
jmp 0x4a2675
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4a26cd
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4a26cd
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4a2827
cmp eax, 0x80000000
je 0x4a27ee
cmp eax, ecx
jne 0x4a26cd
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a26cd
cmp eax, 2
jbe 0x4a28cf
cmp eax, 4
jbe 0x4a27c0
cmp eax, 5
je 0x4a28cf
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x50e660]
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 + 0x50e660]
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 0x4a273f
test byte [ebp + 0x10], 8
je 0x4a273f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x50e660]
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 0x4a294e
test byte [ebp + 0x10], 1
je 0x4a294e
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 0x4a2937
call dword [sym.imp.KERNEL32.DLL_GetLastError]
push eax
call fcn.00490e9d
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x50e660]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0048d1dd
pop ecx
jmp 0x4a24b5
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049d3a2
add esp, 0x10
or eax, edx
je 0x4a28cf
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049d3a2
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4a25af
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00497131
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a25af
cmp eax, 2
je 0x4a2873
cmp eax, 3
jne 0x4a28c1
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4a2873
mov byte [ebp - 2], 1
jmp 0x4a26cd
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a26cd
cmp eax, 2
jbe 0x4a28cf
cmp eax, 4
ja 0x4a26c4
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049d3a2
add esp, 0x10
or eax, edx
je 0x4a28cf
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049d3a2
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4a26cd
jmp 0x4a25af
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4a289b
push dword [esi]
call fcn.00495d47
pop ecx
call fcn.00490e77
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4a2950
cmp eax, 0xfeff
jne 0x4a28c1
push ebx
push 2
push dword [esi]
call fcn.00496168
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a25af
mov byte [ebp - 2], 2
jmp 0x4a26cd
push ebx
push ebx
push dword [esi]
call fcn.00496168
add esp, 0xc
jmp 0x4a2865
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4a28ef
dec eax
jne 0x4a26cd
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4a28fd
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.0049d1d6
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a2923
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4a28fd
jmp 0x4a26cd
push dword [esi]
call fcn.00495d47
pop ecx
call fcn.00490e77
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4a2950
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x50e660]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret