Function at 0x4a87e5
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 0x4a8814
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4a881e
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004a28e3
test eax, eax
pop ecx
je 0x4a8839
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048f45f
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00496f71
test eax, eax
pop ecx
je 0x4a8854
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048f45f
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4a8871
test ecx, 0x74000
jne 0x4a886d
cmp dword [ebp - 0x24], eax
je 0x4a8871
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4a88cb
dec eax
je 0x4a88b5
dec eax
je 0x4a88b0
call fcn.00496e97
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00496e84
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0048f55b
add esp, 0x14
jmp 0x4a8e7e
mov dword [ebp - 8], edx
jmp 0x4a88ce
test cl, 8
je 0x4a88c2
test ecx, 0x70000
jne 0x4a88b0
mov dword [ebp - 8], 0x40000000
jmp 0x4a88ce
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4a890f
sub eax, ecx
je 0x4a8906
sub eax, ecx
je 0x4a88fd
sub eax, ecx
je 0x4a88f4
sub eax, 0x40
jne 0x4a888a
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4a8912
mov dword [ebp - 0x10], 3
jmp 0x4a8912
mov dword [ebp - 0x10], 2
jmp 0x4a8912
mov dword [ebp - 0x10], 1
jmp 0x4a8912
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 0x4a8965
je 0x4a895c
cmp eax, ebx
je 0x4a895c
cmp eax, edi
je 0x4a8953
cmp eax, 0x200
je 0x4a89d8
cmp eax, 0x300
jne 0x4a888a
mov dword [ebp - 0x14], 2
jmp 0x4a8982
mov dword [ebp - 0x14], 4
jmp 0x4a8982
mov dword [ebp - 0x14], 3
jmp 0x4a8982
cmp eax, 0x500
je 0x4a897b
cmp eax, 0x600
je 0x4a89d8
cmp eax, edx
jne 0x4a888a
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4a89a6
mov ecx, dword [0x4df3ec]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4a89a6
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4a89c2
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4a89c2
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4a89cb
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4a89e1
or dword [ebp - 0xc], 0x8000000
jmp 0x4a89ec
mov dword [ebp - 0x14], 5
jmp 0x4a8982
test al, 0x10
je 0x4a89ec
or dword [ebp - 0xc], 0x10000000
call fcn.00492baf
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4a8a12
call fcn.00496e97
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00496e84
mov dword [eax], 0x18
jmp 0x4a8aa0
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 0x4a8aac
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4a8a78
test byte [ebp + 0x10], 1
je 0x4a8a78
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 0x4a8aac
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4e14a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00496eaa
pop ecx
call fcn.00496e84
mov eax, dword [eax]
jmp 0x4a8f3a
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4a8afd
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4e14a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00496eaa
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4a8aa0
call fcn.00496e84
mov dword [eax], 0xd
jmp 0x4a8aa0
cmp eax, 2
jne 0x4a8b08
or byte [ebp - 1], 0x40
jmp 0x4a8b11
cmp eax, 3
jne 0x4a8b11
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0049297e
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4e14a0]
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 + 0x4e14a0]
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 0x4a8be7
test cl, 0x80
je 0x4a8cb7
test byte [ebp + 0x10], 2
je 0x4a8be7
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0049f708
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4a8ba5
call fcn.00496e97
cmp dword [eax], 0x83
je 0x4a8be7
push dword [esi]
call fcn.0049f225
jmp 0x4a8a9f
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.0049eb67
add esp, 0xc
test eax, eax
jne 0x4a8bd7
cmp word [ebp - 0x2c], 0x1a
jne 0x4a8bd7
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00492595
add esp, 0xc
cmp eax, edi
je 0x4a8b99
push ebx
push ebx
push dword [esi]
call fcn.0049f708
add esp, 0xc
cmp eax, edi
je 0x4a8b99
test byte [ebp - 1], 0x80
je 0x4a8cb7
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4a8c0f
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4a8c0c
or dword [ebp + 0x10], edi
jmp 0x4a8c0f
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4a8c5c
cmp eax, 0x10000
je 0x4a8c48
cmp eax, 0x14000
je 0x4a8c48
cmp eax, 0x20000
je 0x4a8c56
cmp eax, 0x24000
je 0x4a8c56
cmp eax, 0x40000
je 0x4a8c42
cmp eax, 0x44000
jne 0x4a8c5f
mov byte [ebp - 2], 1
jmp 0x4a8c5f
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4a8c5f
mov byte [ebp - 2], 2
jmp 0x4a8c5f
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4a8cb7
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4a8cb7
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4a8e11
cmp eax, 0x80000000
je 0x4a8dd8
cmp eax, ecx
jne 0x4a8cb7
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a8cb7
cmp eax, 2
jbe 0x4a8eb9
cmp eax, 4
jbe 0x4a8daa
cmp eax, 5
je 0x4a8eb9
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4e14a0]
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 + 0x4e14a0]
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 0x4a8d29
test byte [ebp + 0x10], 8
je 0x4a8d29
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4e14a0]
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 0x4a8f38
test byte [ebp + 0x10], 1
je 0x4a8f38
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 0x4a8f21
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00496eaa
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4e14a0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004929fb
pop ecx
jmp 0x4a8a9f
push 2
push ebx
push ebx
push dword [esi]
call fcn.004a2917
add esp, 0x10
or eax, edx
je 0x4a8eb9
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004a2917
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4a8b99
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0049eb67
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a8b99
cmp eax, 2
je 0x4a8e5d
cmp eax, 3
jne 0x4a8eab
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4a8e5d
mov byte [ebp - 2], 1
jmp 0x4a8cb7
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a8cb7
cmp eax, 2
jbe 0x4a8eb9
cmp eax, 4
ja 0x4a8cae
push 2
push ebx
push ebx
push dword [esi]
call fcn.004a2917
add esp, 0x10
or eax, edx
je 0x4a8eb9
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004a2917
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4a8cb7
jmp 0x4a8b99
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4a8e85
push dword [esi]
call fcn.0049f225
pop ecx
call fcn.00496e84
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4a8f3a
cmp eax, 0xfeff
jne 0x4a8eab
push ebx
push 2
push dword [esi]
call fcn.0049f708
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a8b99
mov byte [ebp - 2], 2
jmp 0x4a8cb7
push ebx
push ebx
push dword [esi]
call fcn.0049f708
add esp, 0xc
jmp 0x4a8e4f
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4a8ed9
dec eax
jne 0x4a8cb7
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4a8ee7
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.004a2218
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a8f0d
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4a8ee7
jmp 0x4a8cb7
push dword [esi]
call fcn.0049f225
pop ecx
call fcn.00496e84
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4a8f3a
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4e14a0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret