Function at 0x1000877d
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 0x100087ac
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x100087b6
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.1000cf30
test eax, eax
pop ecx
je 0x100087d1
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.1000416f
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.10006717
test eax, eax
pop ecx
je 0x100087ec
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.1000416f
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x10008809
test ecx, 0x74000
jne 0x10008805
cmp dword [ebp - 0x24], eax
je 0x10008809
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x10008863
dec eax
je 0x1000884d
dec eax
je 0x10008848
call fcn.100042dd
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.100042ca
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.1000426b
add esp, 0x14
jmp 0x10008e15
mov dword [ebp - 8], edx
jmp 0x10008866
test cl, 8
je 0x1000885a
test ecx, 0x70000
jne 0x10008848
mov dword [ebp - 8], 0x40000000
jmp 0x10008866
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x100088a7
sub eax, ecx
je 0x1000889e
sub eax, ecx
je 0x10008895
sub eax, ecx
je 0x1000888c
sub eax, 0x40
jne 0x10008822
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x100088aa
mov dword [ebp - 0x10], 3
jmp 0x100088aa
mov dword [ebp - 0x10], 2
jmp 0x100088aa
mov dword [ebp - 0x10], 1
jmp 0x100088aa
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 0x100088fd
je 0x100088f4
cmp eax, ebx
je 0x100088f4
cmp eax, edi
je 0x100088eb
cmp eax, 0x200
je 0x10008970
cmp eax, 0x300
jne 0x10008822
mov dword [ebp - 0x14], 2
jmp 0x1000891a
mov dword [ebp - 0x14], 4
jmp 0x1000891a
mov dword [ebp - 0x14], 3
jmp 0x1000891a
cmp eax, 0x500
je 0x10008913
cmp eax, 0x600
je 0x10008970
cmp eax, edx
jne 0x10008822
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x1000893e
mov ecx, dword [0x1001552c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x1000893e
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x1000895a
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x1000895a
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x10008963
or dword [ebp - 0xc], edi
test al, 0x20
je 0x10008979
or dword [ebp - 0xc], 0x8000000
jmp 0x10008984
mov dword [ebp - 0x14], 5
jmp 0x1000891a
test al, 0x10
je 0x10008984
or dword [ebp - 0xc], 0x10000000
call fcn.100097b4
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x100089aa
call fcn.100042dd
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.100042ca
mov dword [eax], 0x18
jmp 0x10008a38
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 0x10008a44
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x10008a10
test byte [ebp + 0x10], 1
je 0x10008a10
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 0x10008a44
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x100160c0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.100042f0
pop ecx
call fcn.100042ca
mov eax, dword [eax]
jmp 0x10008ed1
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x10008a95
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x100160c0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.100042f0
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x10008a38
call fcn.100042ca
mov dword [eax], 0xd
jmp 0x10008a38
cmp eax, 2
jne 0x10008aa0
or byte [ebp - 1], 0x40
jmp 0x10008aa9
cmp eax, 3
jne 0x10008aa9
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.10009583
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x100160c0]
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 + 0x100160c0]
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 0x10008b7e
test cl, 0x80
je 0x10008c4e
test byte [ebp + 0x10], 2
je 0x10008b7e
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.1000ce02
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x10008b3d
call fcn.100042dd
cmp dword [eax], 0x83
je 0x10008b7e
push dword [esi]
call fcn.10004d3b
jmp 0x10008a37
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.1000c841
add esp, 0xc
test eax, eax
jne 0x10008b6e
cmp byte [ebp - 4], 0x1a
jne 0x10008b6e
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.1000c68d
add esp, 0xc
cmp eax, edi
je 0x10008b31
push ebx
push ebx
push dword [esi]
call fcn.1000ce02
add esp, 0xc
cmp eax, edi
je 0x10008b31
test byte [ebp - 1], 0x80
je 0x10008c4e
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x10008ba6
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x10008ba3
or dword [ebp + 0x10], edi
jmp 0x10008ba6
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x10008bf3
cmp eax, 0x10000
je 0x10008bdf
cmp eax, 0x14000
je 0x10008bdf
cmp eax, 0x20000
je 0x10008bed
cmp eax, 0x24000
je 0x10008bed
cmp eax, 0x40000
je 0x10008bd9
cmp eax, 0x44000
jne 0x10008bf6
mov byte [ebp - 2], 1
jmp 0x10008bf6
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x10008bf6
mov byte [ebp - 2], 2
jmp 0x10008bf6
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x10008c4e
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x10008c4e
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x10008da8
cmp eax, 0x80000000
je 0x10008d6f
cmp eax, ecx
jne 0x10008c4e
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x10008c4e
cmp eax, 2
jbe 0x10008e50
cmp eax, 4
jbe 0x10008d41
cmp eax, 5
je 0x10008e50
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100160c0]
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 + 0x100160c0]
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 0x10008cc0
test byte [ebp + 0x10], 8
je 0x10008cc0
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100160c0]
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 0x10008ecf
test byte [ebp + 0x10], 1
je 0x10008ecf
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 0x10008eb8
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.100042f0
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100160c0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.10009600
pop ecx
jmp 0x10008a37
push 2
push ebx
push ebx
push dword [esi]
call fcn.1000a1cb
add esp, 0x10
or eax, edx
je 0x10008e50
push ebx
push ebx
push ebx
push dword [esi]
call fcn.1000a1cb
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x10008b31
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.1000c841
add esp, 0xc
cmp eax, 0xffffffff
je 0x10008b31
cmp eax, 2
je 0x10008df4
cmp eax, 3
jne 0x10008e42
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x10008df4
mov byte [ebp - 2], 1
jmp 0x10008c4e
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x10008c4e
cmp eax, 2
jbe 0x10008e50
cmp eax, 4
ja 0x10008c45
push 2
push ebx
push ebx
push dword [esi]
call fcn.1000a1cb
add esp, 0x10
or eax, edx
je 0x10008e50
push ebx
push ebx
push ebx
push dword [esi]
call fcn.1000a1cb
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x10008c4e
jmp 0x10008b31
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x10008e1c
push dword [esi]
call fcn.10004d3b
pop ecx
call fcn.100042ca
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x10008ed1
cmp eax, 0xfeff
jne 0x10008e42
push ebx
push 2
push dword [esi]
call fcn.1000ce02
add esp, 0xc
cmp eax, 0xffffffff
je 0x10008b31
mov byte [ebp - 2], 2
jmp 0x10008c4e
push ebx
push ebx
push dword [esi]
call fcn.1000ce02
add esp, 0xc
jmp 0x10008de6
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x10008e70
dec eax
jne 0x10008c4e
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x10008e7e
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.10009f19
add esp, 0xc
cmp eax, 0xffffffff
je 0x10008ea4
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x10008e7e
jmp 0x10008c4e
push dword [esi]
call fcn.10004d3b
pop ecx
call fcn.100042ca
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x10008ed1
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100160c0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret