Function at 0x100309af
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 0x100309de
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x100309e8
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.10034191
test eax, eax
pop ecx
je 0x10030a03
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.1001b39f
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.100229cf
test eax, eax
pop ecx
je 0x10030a1e
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.1001b39f
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x10030a3b
test ecx, 0x74000
jne 0x10030a37
cmp dword [ebp - 0x24], eax
je 0x10030a3b
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x10030a95
dec eax
je 0x10030a7f
dec eax
je 0x10030a7a
call fcn.10020df2
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.10020ddf
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.1001b49b
add esp, 0x14
jmp 0x10031047
mov dword [ebp - 8], edx
jmp 0x10030a98
test cl, 8
je 0x10030a8c
test ecx, 0x70000
jne 0x10030a7a
mov dword [ebp - 8], 0x40000000
jmp 0x10030a98
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x10030ad9
sub eax, ecx
je 0x10030ad0
sub eax, ecx
je 0x10030ac7
sub eax, ecx
je 0x10030abe
sub eax, 0x40
jne 0x10030a54
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x10030adc
mov dword [ebp - 0x10], 3
jmp 0x10030adc
mov dword [ebp - 0x10], 2
jmp 0x10030adc
mov dword [ebp - 0x10], 1
jmp 0x10030adc
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 0x10030b2f
je 0x10030b26
cmp eax, ebx
je 0x10030b26
cmp eax, edi
je 0x10030b1d
cmp eax, 0x200
je 0x10030ba2
cmp eax, 0x300
jne 0x10030a54
mov dword [ebp - 0x14], 2
jmp 0x10030b4c
mov dword [ebp - 0x14], 4
jmp 0x10030b4c
mov dword [ebp - 0x14], 3
jmp 0x10030b4c
cmp eax, 0x500
je 0x10030b45
cmp eax, 0x600
je 0x10030ba2
cmp eax, edx
jne 0x10030a54
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x10030b70
mov ecx, dword [0x10047178]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x10030b70
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x10030b8c
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x10030b8c
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x10030b95
or dword [ebp - 0xc], edi
test al, 0x20
je 0x10030bab
or dword [ebp - 0xc], 0x8000000
jmp 0x10030bb6
mov dword [ebp - 0x14], 5
jmp 0x10030b4c
test al, 0x10
je 0x10030bb6
or dword [ebp - 0xc], 0x10000000
call fcn.10030152
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x10030bdc
call fcn.10020df2
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.10020ddf
mov dword [eax], 0x18
jmp 0x10030c6a
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 0x10030c76
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x10030c42
test byte [ebp + 0x10], 1
je 0x10030c42
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 0x10030c76
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x10048c60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.10020e05
pop ecx
call fcn.10020ddf
mov eax, dword [eax]
jmp 0x10031103
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x10030cc7
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x10048c60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.10020e05
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x10030c6a
call fcn.10020ddf
mov dword [eax], 0xd
jmp 0x10030c6a
cmp eax, 2
jne 0x10030cd2
or byte [ebp - 1], 0x40
jmp 0x10030cdb
cmp eax, 3
jne 0x10030cdb
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.1002ff21
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x10048c60]
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 + 0x10048c60]
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 0x10030db0
test cl, 0x80
je 0x10030e80
test byte [ebp + 0x10], 2
je 0x10030db0
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.1002a94f
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x10030d6f
call fcn.10020df2
cmp dword [eax], 0x83
je 0x10030db0
push dword [esi]
call fcn.1002ad1d
jmp 0x10030c69
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.1002f680
add esp, 0xc
test eax, eax
jne 0x10030da0
cmp byte [ebp - 4], 0x1a
jne 0x10030da0
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.10033f21
add esp, 0xc
cmp eax, edi
je 0x10030d63
push ebx
push ebx
push dword [esi]
call fcn.1002a94f
add esp, 0xc
cmp eax, edi
je 0x10030d63
test byte [ebp - 1], 0x80
je 0x10030e80
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x10030dd8
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x10030dd5
or dword [ebp + 0x10], edi
jmp 0x10030dd8
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x10030e25
cmp eax, 0x10000
je 0x10030e11
cmp eax, 0x14000
je 0x10030e11
cmp eax, 0x20000
je 0x10030e1f
cmp eax, 0x24000
je 0x10030e1f
cmp eax, 0x40000
je 0x10030e0b
cmp eax, 0x44000
jne 0x10030e28
mov byte [ebp - 2], 1
jmp 0x10030e28
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x10030e28
mov byte [ebp - 2], 2
jmp 0x10030e28
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x10030e80
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x10030e80
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x10030fda
cmp eax, 0x80000000
je 0x10030fa1
cmp eax, ecx
jne 0x10030e80
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x10030e80
cmp eax, 2
jbe 0x10031082
cmp eax, 4
jbe 0x10030f73
cmp eax, 5
je 0x10031082
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x10048c60]
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 + 0x10048c60]
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 0x10030ef2
test byte [ebp + 0x10], 8
je 0x10030ef2
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x10048c60]
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 0x10031101
test byte [ebp + 0x10], 1
je 0x10031101
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 0x100310ea
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.10020e05
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x10048c60]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.1002ff9e
pop ecx
jmp 0x10030c69
push 2
push ebx
push ebx
push dword [esi]
call fcn.1002ed2b
add esp, 0x10
or eax, edx
je 0x10031082
push ebx
push ebx
push ebx
push dword [esi]
call fcn.1002ed2b
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x10030d63
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.1002f680
add esp, 0xc
cmp eax, 0xffffffff
je 0x10030d63
cmp eax, 2
je 0x10031026
cmp eax, 3
jne 0x10031074
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x10031026
mov byte [ebp - 2], 1
jmp 0x10030e80
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x10030e80
cmp eax, 2
jbe 0x10031082
cmp eax, 4
ja 0x10030e77
push 2
push ebx
push ebx
push dword [esi]
call fcn.1002ed2b
add esp, 0x10
or eax, edx
je 0x10031082
push ebx
push ebx
push ebx
push dword [esi]
call fcn.1002ed2b
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x10030e80
jmp 0x10030d63
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x1003104e
push dword [esi]
call fcn.1002ad1d
pop ecx
call fcn.10020ddf
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x10031103
cmp eax, 0xfeff
jne 0x10031074
push ebx
push 2
push dword [esi]
call fcn.1002a94f
add esp, 0xc
cmp eax, 0xffffffff
je 0x10030d63
mov byte [ebp - 2], 2
jmp 0x10030e80
push ebx
push ebx
push dword [esi]
call fcn.1002a94f
add esp, 0xc
jmp 0x10031018
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x100310a2
dec eax
jne 0x10030e80
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x100310b0
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.1002a440
add esp, 0xc
cmp eax, 0xffffffff
je 0x100310d6
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x100310b0
jmp 0x10030e80
push dword [esi]
call fcn.1002ad1d
pop ecx
call fcn.10020ddf
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x10031103
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x10048c60]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret