Function at 0x438d06
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x34
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 - 0x34], 0xc
mov dword [ebp - 0x30], ebx
je 0x438d35
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x438d3f
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0043b229
test eax, eax
pop ecx
je 0x438d5a
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0042dd04
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00426f7b
test eax, eax
pop ecx
je 0x438d75
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0042dd04
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x438d92
test ecx, 0x74000
jne 0x438d8e
cmp dword [ebp - 0x24], eax
je 0x438d92
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x438dec
dec eax
je 0x438dd6
dec eax
je 0x438dd1
call fcn.004288a8
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00428895
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0042de00
add esp, 0x14
jmp 0x43939e
mov dword [ebp - 8], edx
jmp 0x438def
test cl, 8
je 0x438de3
test ecx, 0x70000
jne 0x438dd1
mov dword [ebp - 8], 0x40000000
jmp 0x438def
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x438e30
sub eax, ecx
je 0x438e27
sub eax, ecx
je 0x438e1e
sub eax, ecx
je 0x438e15
sub eax, 0x40
jne 0x438dab
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x438e33
mov dword [ebp - 0x10], 3
jmp 0x438e33
mov dword [ebp - 0x10], 2
jmp 0x438e33
mov dword [ebp - 0x10], 1
jmp 0x438e33
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 0x438e86
je 0x438e7d
cmp eax, ebx
je 0x438e7d
cmp eax, edi
je 0x438e74
cmp eax, 0x200
je 0x438ef9
cmp eax, 0x300
jne 0x438dab
mov dword [ebp - 0x14], 2
jmp 0x438ea3
mov dword [ebp - 0x14], 4
jmp 0x438ea3
mov dword [ebp - 0x14], 3
jmp 0x438ea3
cmp eax, 0x500
je 0x438e9c
cmp eax, 0x600
je 0x438ef9
cmp eax, edx
jne 0x438dab
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x438ec7
mov ecx, dword [0x45a4bc]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x438ec7
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x438ee3
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x438ee3
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x438eec
or dword [ebp - 0xc], edi
test al, 0x20
je 0x438f02
or dword [ebp - 0xc], 0x8000000
jmp 0x438f0d
mov dword [ebp - 0x14], 5
jmp 0x438ea3
test al, 0x10
je 0x438f0d
or dword [ebp - 0xc], 0x10000000
call fcn.00428579
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x438f33
call fcn.004288a8
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00428895
mov dword [eax], 0x18
jmp 0x438fc1
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileA]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x34]
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 0x438fcd
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x438f99
test byte [ebp + 0x10], 1
je 0x438f99
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
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 0x438fcd
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x45c160]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004288bb
pop ecx
call fcn.00428895
mov eax, dword [eax]
jmp 0x43945a
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x43901e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x45c160]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004288bb
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x438fc1
call fcn.00428895
mov dword [eax], 0xd
jmp 0x438fc1
cmp eax, 2
jne 0x439029
or byte [ebp - 1], 0x40
jmp 0x439032
cmp eax, 3
jne 0x439032
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00428348
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x45c160]
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 + 0x45c160]
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 0x439107
test cl, 0x80
je 0x4391d7
test byte [ebp + 0x10], 2
je 0x439107
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00434fec
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4390c6
call fcn.004288a8
cmp dword [eax], 0x83
je 0x439107
push dword [esi]
call fcn.00432974
jmp 0x438fc0
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.004345a9
add esp, 0xc
test eax, eax
jne 0x4390f7
cmp byte [ebp - 4], 0x1a
jne 0x4390f7
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0043afb9
add esp, 0xc
cmp eax, edi
je 0x4390ba
push ebx
push ebx
push dword [esi]
call fcn.00434fec
add esp, 0xc
cmp eax, edi
je 0x4390ba
test byte [ebp - 1], 0x80
je 0x4391d7
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x43912f
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x43912c
or dword [ebp + 0x10], edi
jmp 0x43912f
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x43917c
cmp eax, 0x10000
je 0x439168
cmp eax, 0x14000
je 0x439168
cmp eax, 0x20000
je 0x439176
cmp eax, 0x24000
je 0x439176
cmp eax, 0x40000
je 0x439162
cmp eax, 0x44000
jne 0x43917f
mov byte [ebp - 2], 1
jmp 0x43917f
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x43917f
mov byte [ebp - 2], 2
jmp 0x43917f
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4391d7
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4391d7
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x439331
cmp eax, 0x80000000
je 0x4392f8
cmp eax, ecx
jne 0x4391d7
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4391d7
cmp eax, 2
jbe 0x4393d9
cmp eax, 4
jbe 0x4392ca
cmp eax, 5
je 0x4393d9
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x45c160]
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 + 0x45c160]
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 0x439249
test byte [ebp + 0x10], 8
je 0x439249
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x45c160]
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 0x439458
test byte [ebp + 0x10], 1
je 0x439458
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
jne 0x439441
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004288bb
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x45c160]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004283c5
pop ecx
jmp 0x438fc0
push 2
push ebx
push ebx
push dword [esi]
call fcn.00438727
add esp, 0x10
or eax, edx
je 0x4393d9
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00438727
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4390ba
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004345a9
add esp, 0xc
cmp eax, 0xffffffff
je 0x4390ba
cmp eax, 2
je 0x43937d
cmp eax, 3
jne 0x4393cb
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x43937d
mov byte [ebp - 2], 1
jmp 0x4391d7
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4391d7
cmp eax, 2
jbe 0x4393d9
cmp eax, 4
ja 0x4391ce
push 2
push ebx
push ebx
push dword [esi]
call fcn.00438727
add esp, 0x10
or eax, edx
je 0x4393d9
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00438727
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4391d7
jmp 0x4390ba
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4393a5
push dword [esi]
call fcn.00432974
pop ecx
call fcn.00428895
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x43945a
cmp eax, 0xfeff
jne 0x4393cb
push ebx
push 2
push dword [esi]
call fcn.00434fec
add esp, 0xc
cmp eax, 0xffffffff
je 0x4390ba
mov byte [ebp - 2], 2
jmp 0x4391d7
push ebx
push ebx
push dword [esi]
call fcn.00434fec
add esp, 0xc
jmp 0x43936f
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4393f9
dec eax
jne 0x4391d7
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x439407
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.00433268
add esp, 0xc
cmp eax, 0xffffffff
je 0x43942d
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x439407
jmp 0x4391d7
push dword [esi]
call fcn.00432974
pop ecx
call fcn.00428895
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x43945a
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x45c160]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret