Function at 0x481887
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 0x4818b6
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4818c0
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004823e2
test eax, eax
pop ecx
je 0x4818db
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0046dd7f
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0046f8b7
test eax, eax
pop ecx
je 0x4818f6
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0046dd7f
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x481913
test ecx, 0x74000
jne 0x48190f
cmp dword [ebp - 0x24], eax
je 0x481913
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x48196d
dec eax
je 0x481957
dec eax
je 0x481952
call fcn.0046f44b
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0046f438
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0046de7b
add esp, 0x14
jmp 0x481f20
mov dword [ebp - 8], edx
jmp 0x481970
test cl, 8
je 0x481964
test ecx, 0x70000
jne 0x481952
mov dword [ebp - 8], 0x40000000
jmp 0x481970
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4819b1
sub eax, ecx
je 0x4819a8
sub eax, ecx
je 0x48199f
sub eax, ecx
je 0x481996
sub eax, 0x40
jne 0x48192c
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4819b4
mov dword [ebp - 0x10], 3
jmp 0x4819b4
mov dword [ebp - 0x10], 2
jmp 0x4819b4
mov dword [ebp - 0x10], 1
jmp 0x4819b4
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, pe_nt_image_headers32
jg 0x481a07
je 0x4819fe
cmp eax, ebx
je 0x4819fe
cmp eax, edi
je 0x4819f5
cmp eax, 0x200
je 0x481a7a
cmp eax, 0x300
jne 0x48192c
mov dword [ebp - 0x14], 2
jmp 0x481a24
mov dword [ebp - 0x14], 4
jmp 0x481a24
mov dword [ebp - 0x14], 3
jmp 0x481a24
cmp eax, 0x500
je 0x481a1d
cmp eax, 0x600
je 0x481a7a
cmp eax, edx
jne 0x48192c
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x481a48
mov ecx, dword [0x4a4dcc]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x481a48
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x481a64
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x481a64
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x481a6d
or dword [ebp - 0xc], edi
test al, 0x20
je 0x481a83
or dword [ebp - 0xc], 0x8000000
jmp 0x481a8e
mov dword [ebp - 0x14], 5
jmp 0x481a24
test al, 0x10
je 0x481a8e
or dword [ebp - 0xc], 0x10000000
call fcn.0047a79a
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x481ab4
call fcn.0046f44b
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0046f438
mov dword [eax], 0x18
jmp 0x481b42
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 0x481b4e
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x481b1a
test byte [ebp + 0x10], 1
je 0x481b1a
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 0x481b4e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4a6320]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0046f45e
pop ecx
call fcn.0046f438
mov eax, dword [eax]
jmp 0x481fdc
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x481b9f
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4a6320]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0046f45e
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x481b42
call fcn.0046f438
mov dword [eax], 0xd
jmp 0x481b42
cmp eax, 2
jne 0x481baa
or byte [ebp - 1], 0x40
jmp 0x481bb3
cmp eax, 3
jne 0x481bb3
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0047a569
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4a6320]
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 + 0x4a6320]
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 0x481c89
test cl, 0x80
je 0x481d59
test byte [ebp + 0x10], 2
je 0x481c89
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004822b4
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x481c47
call fcn.0046f44b
cmp dword [eax], 0x83
je 0x481c89
push dword [esi]
call fcn.0047d44e
jmp 0x481b41
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.0047d641
add esp, 0xc
test eax, eax
jne 0x481c79
cmp word [ebp - 0x2c], 0x1a
jne 0x481c79
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00482100
add esp, 0xc
cmp eax, edi
je 0x481c3b
push ebx
push ebx
push dword [esi]
call fcn.004822b4
add esp, 0xc
cmp eax, edi
je 0x481c3b
test byte [ebp - 1], 0x80
je 0x481d59
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x481cb1
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x481cae
or dword [ebp + 0x10], edi
jmp 0x481cb1
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x481cfe
cmp eax, 0x10000
je 0x481cea
cmp eax, 0x14000
je 0x481cea
cmp eax, 0x20000
je 0x481cf8
cmp eax, 0x24000
je 0x481cf8
cmp eax, 0x40000
je 0x481ce4
cmp eax, 0x44000
jne 0x481d01
mov byte [ebp - 2], 1
jmp 0x481d01
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x481d01
mov byte [ebp - 2], 2
jmp 0x481d01
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x481d59
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x481d59
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x481eb3
cmp eax, 0x80000000
je 0x481e7a
cmp eax, ecx
jne 0x481d59
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x481d59
cmp eax, 2
jbe 0x481f5b
cmp eax, 4
jbe 0x481e4c
cmp eax, 5
je 0x481f5b
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4a6320]
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 + 0x4a6320]
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 0x481dcb
test byte [ebp + 0x10], 8
je 0x481dcb
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4a6320]
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 0x481fda
test byte [ebp + 0x10], 1
je 0x481fda
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 0x481fc3
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0046f45e
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4a6320]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0047a5e6
pop ecx
jmp 0x481b41
push 2
push ebx
push ebx
push dword [esi]
call fcn.00477f6f
add esp, 0x10
or eax, edx
je 0x481f5b
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00477f6f
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x481c3b
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0047d641
add esp, 0xc
cmp eax, 0xffffffff
je 0x481c3b
cmp eax, 2
je 0x481eff
cmp eax, 3
jne 0x481f4d
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x481eff
mov byte [ebp - 2], 1
jmp 0x481d59
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x481d59
cmp eax, 2
jbe 0x481f5b
cmp eax, 4
ja 0x481d50
push 2
push ebx
push ebx
push dword [esi]
call fcn.00477f6f
add esp, 0x10
or eax, edx
je 0x481f5b
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00477f6f
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x481d59
jmp 0x481c3b
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x481f27
push dword [esi]
call fcn.0047d44e
pop ecx
call fcn.0046f438
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x481fdc
cmp eax, 0xfeff
jne 0x481f4d
push ebx
push 2
push dword [esi]
call fcn.004822b4
add esp, 0xc
cmp eax, 0xffffffff
je 0x481c3b
mov byte [ebp - 2], 2
jmp 0x481d59
push ebx
push ebx
push dword [esi]
call fcn.004822b4
add esp, 0xc
jmp 0x481ef1
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x481f7b
dec eax
jne 0x481d59
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x481f89
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.004786d1
add esp, 0xc
cmp eax, 0xffffffff
je 0x481faf
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x481f89
jmp 0x481d59
push dword [esi]
call fcn.0047d44e
pop ecx
call fcn.0046f438
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x481fdc
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4a6320]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret