Function at 0x4a123b
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 0x4a126a
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4a1274
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0049c231
test eax, eax
pop ecx
je 0x4a128f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048a50e
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0048f0db
test eax, eax
pop ecx
je 0x4a12aa
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048a50e
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4a12c7
test ecx, 0x74000
jne 0x4a12c3
cmp dword [ebp - 0x24], eax
je 0x4a12c7
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4a1321
dec eax
je 0x4a130b
dec eax
je 0x4a1306
call fcn.004905c3
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004905b0
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0048a60a
add esp, 0x14
jmp 0x4a18d4
mov dword [ebp - 8], edx
jmp 0x4a1324
test cl, 8
je 0x4a1318
test ecx, 0x70000
jne 0x4a1306
mov dword [ebp - 8], 0x40000000
jmp 0x4a1324
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4a1365
sub eax, ecx
je 0x4a135c
sub eax, ecx
je 0x4a1353
sub eax, ecx
je 0x4a134a
sub eax, 0x40
jne 0x4a12e0
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4a1368
mov dword [ebp - 0x10], 3
jmp 0x4a1368
mov dword [ebp - 0x10], 2
jmp 0x4a1368
mov dword [ebp - 0x10], 1
jmp 0x4a1368
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 0x4a13bb
je 0x4a13b2
cmp eax, ebx
je 0x4a13b2
cmp eax, edi
je 0x4a13a9
cmp eax, 0x200
je 0x4a142e
cmp eax, 0x300
jne 0x4a12e0
mov dword [ebp - 0x14], 2
jmp 0x4a13d8
mov dword [ebp - 0x14], 4
jmp 0x4a13d8
mov dword [ebp - 0x14], 3
jmp 0x4a13d8
cmp eax, 0x500
je 0x4a13d1
cmp eax, 0x600
je 0x4a142e
cmp eax, edx
jne 0x4a12e0
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4a13fc
mov ecx, dword [0x4d70b0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4a13fc
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4a1418
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4a1418
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4a1421
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4a1437
or dword [ebp - 0xc], 0x8000000
jmp 0x4a1442
mov dword [ebp - 0x14], 5
jmp 0x4a13d8
test al, 0x10
je 0x4a1442
or dword [ebp - 0xc], 0x10000000
call fcn.0048d14b
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4a1468
call fcn.004905c3
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004905b0
mov dword [eax], 0x18
jmp 0x4a14f6
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 0x4a1502
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4a14ce
test byte [ebp + 0x10], 1
je 0x4a14ce
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 0x4a1502
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4d82e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004905d6
pop ecx
call fcn.004905b0
mov eax, dword [eax]
jmp 0x4a1990
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4a1553
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4d82e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004905d6
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4a14f6
call fcn.004905b0
mov dword [eax], 0xd
jmp 0x4a14f6
cmp eax, 2
jne 0x4a155e
or byte [ebp - 1], 0x40
jmp 0x4a1567
cmp eax, 3
jne 0x4a1567
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0048cf1a
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4d82e0]
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 + 0x4d82e0]
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 0x4a163d
test cl, 0x80
je 0x4a170d
test byte [ebp + 0x10], 2
je 0x4a163d
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00495a20
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4a15fb
call fcn.004905c3
cmp dword [eax], 0x83
je 0x4a163d
push dword [esi]
call fcn.004955ff
jmp 0x4a14f5
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.004969e9
add esp, 0xc
test eax, eax
jne 0x4a162d
cmp word [ebp - 0x2c], 0x1a
jne 0x4a162d
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0048c9ce
add esp, 0xc
cmp eax, edi
je 0x4a15ef
push ebx
push ebx
push dword [esi]
call fcn.00495a20
add esp, 0xc
cmp eax, edi
je 0x4a15ef
test byte [ebp - 1], 0x80
je 0x4a170d
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4a1665
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4a1662
or dword [ebp + 0x10], edi
jmp 0x4a1665
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4a16b2
cmp eax, 0x10000
je 0x4a169e
cmp eax, 0x14000
je 0x4a169e
cmp eax, 0x20000
je 0x4a16ac
cmp eax, 0x24000
je 0x4a16ac
cmp eax, 0x40000
je 0x4a1698
cmp eax, 0x44000
jne 0x4a16b5
mov byte [ebp - 2], 1
jmp 0x4a16b5
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4a16b5
mov byte [ebp - 2], 2
jmp 0x4a16b5
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4a170d
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4a170d
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4a1867
cmp eax, 0x80000000
je 0x4a182e
cmp eax, ecx
jne 0x4a170d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a170d
cmp eax, 2
jbe 0x4a190f
cmp eax, 4
jbe 0x4a1800
cmp eax, 5
je 0x4a190f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d82e0]
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 + 0x4d82e0]
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 0x4a177f
test byte [ebp + 0x10], 8
je 0x4a177f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d82e0]
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 0x4a198e
test byte [ebp + 0x10], 1
je 0x4a198e
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 0x4a1977
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004905d6
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d82e0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0048cf97
pop ecx
jmp 0x4a14f5
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049c265
add esp, 0x10
or eax, edx
je 0x4a190f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049c265
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4a15ef
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004969e9
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a15ef
cmp eax, 2
je 0x4a18b3
cmp eax, 3
jne 0x4a1901
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4a18b3
mov byte [ebp - 2], 1
jmp 0x4a170d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a170d
cmp eax, 2
jbe 0x4a190f
cmp eax, 4
ja 0x4a1704
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049c265
add esp, 0x10
or eax, edx
je 0x4a190f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049c265
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4a170d
jmp 0x4a15ef
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4a18db
push dword [esi]
call fcn.004955ff
pop ecx
call fcn.004905b0
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4a1990
cmp eax, 0xfeff
jne 0x4a1901
push ebx
push 2
push dword [esi]
call fcn.00495a20
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a15ef
mov byte [ebp - 2], 2
jmp 0x4a170d
push ebx
push ebx
push dword [esi]
call fcn.00495a20
add esp, 0xc
jmp 0x4a18a5
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4a192f
dec eax
jne 0x4a170d
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4a193d
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.0049bfb8
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a1963
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4a193d
jmp 0x4a170d
push dword [esi]
call fcn.004955ff
pop ecx
call fcn.004905b0
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4a1990
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d82e0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret