Function at 0x54ab51
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 0x54ab80
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x54ab8a
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0054ea53
test eax, eax
pop ecx
je 0x54aba5
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0053111f
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00539c8f
test eax, eax
pop ecx
je 0x54abc0
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0053111f
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x54abdd
test ecx, 0x74000
jne 0x54abd9
cmp dword [ebp - 0x24], eax
je 0x54abdd
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x54ac37
dec eax
je 0x54ac21
dec eax
je 0x54ac1c
call fcn.00536f81
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00536f6e
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0053121b
add esp, 0x14
jmp 0x54b1e9
mov dword [ebp - 8], edx
jmp 0x54ac3a
test cl, 8
je 0x54ac2e
test ecx, 0x70000
jne 0x54ac1c
mov dword [ebp - 8], 0x40000000
jmp 0x54ac3a
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x54ac7b
sub eax, ecx
je 0x54ac72
sub eax, ecx
je 0x54ac69
sub eax, ecx
je 0x54ac60
sub eax, 0x40
jne 0x54abf6
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x54ac7e
mov dword [ebp - 0x10], 3
jmp 0x54ac7e
mov dword [ebp - 0x10], 2
jmp 0x54ac7e
mov dword [ebp - 0x10], 1
jmp 0x54ac7e
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 0x54acd1
je 0x54acc8
cmp eax, ebx
je 0x54acc8
cmp eax, edi
je 0x54acbf
cmp eax, 0x200
je 0x54ad44
cmp eax, 0x300
jne 0x54abf6
mov dword [ebp - 0x14], 2
jmp 0x54acee
mov dword [ebp - 0x14], 4
jmp 0x54acee
mov dword [ebp - 0x14], 3
jmp 0x54acee
cmp eax, 0x500
je 0x54ace7
cmp eax, 0x600
je 0x54ad44
cmp eax, edx
jne 0x54abf6
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x54ad12
mov ecx, dword [0x5e4014]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x54ad12
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x54ad2e
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x54ad2e
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x54ad37
or dword [ebp - 0xc], edi
test al, 0x20
je 0x54ad4d
or dword [ebp - 0xc], 0x8000000
jmp 0x54ad58
mov dword [ebp - 0x14], 5
jmp 0x54acee
test al, 0x10
je 0x54ad58
or dword [ebp - 0xc], 0x10000000
call fcn.00547938
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x54ad7e
call fcn.00536f81
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00536f6e
mov dword [eax], 0x18
jmp 0x54ae0c
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 0x54ae18
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x54ade4
test byte [ebp + 0x10], 1
je 0x54ade4
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 0x54ae18
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5e4ee0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00536f94
pop ecx
call fcn.00536f6e
mov eax, dword [eax]
jmp 0x54b2a5
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x54ae69
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5e4ee0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00536f94
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x54ae0c
call fcn.00536f6e
mov dword [eax], 0xd
jmp 0x54ae0c
cmp eax, 2
jne 0x54ae74
or byte [ebp - 1], 0x40
jmp 0x54ae7d
cmp eax, 3
jne 0x54ae7d
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00547707
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x5e4ee0]
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 + 0x5e4ee0]
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 0x54af52
test cl, 0x80
je 0x54b022
test byte [ebp + 0x10], 2
je 0x54af52
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00538ddf
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x54af11
call fcn.00536f81
cmp dword [eax], 0x83
je 0x54af52
push dword [esi]
call fcn.00543c9e
jmp 0x54ae0b
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00538f2d
add esp, 0xc
test eax, eax
jne 0x54af42
cmp byte [ebp - 4], 0x1a
jne 0x54af42
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0054e7e3
add esp, 0xc
cmp eax, edi
je 0x54af05
push ebx
push ebx
push dword [esi]
call fcn.00538ddf
add esp, 0xc
cmp eax, edi
je 0x54af05
test byte [ebp - 1], 0x80
je 0x54b022
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x54af7a
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x54af77
or dword [ebp + 0x10], edi
jmp 0x54af7a
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x54afc7
cmp eax, 0x10000
je 0x54afb3
cmp eax, 0x14000
je 0x54afb3
cmp eax, 0x20000
je 0x54afc1
cmp eax, 0x24000
je 0x54afc1
cmp eax, 0x40000
je 0x54afad
cmp eax, 0x44000
jne 0x54afca
mov byte [ebp - 2], 1
jmp 0x54afca
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x54afca
mov byte [ebp - 2], 2
jmp 0x54afca
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x54b022
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x54b022
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x54b17c
cmp eax, 0x80000000
je 0x54b143
cmp eax, ecx
jne 0x54b022
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x54b022
cmp eax, 2
jbe 0x54b224
cmp eax, 4
jbe 0x54b115
cmp eax, 5
je 0x54b224
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5e4ee0]
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 + 0x5e4ee0]
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 0x54b094
test byte [ebp + 0x10], 8
je 0x54b094
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5e4ee0]
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 0x54b2a3
test byte [ebp + 0x10], 1
je 0x54b2a3
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 0x54b28c
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00536f94
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5e4ee0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00547784
pop ecx
jmp 0x54ae0b
push 2
push ebx
push ebx
push dword [esi]
call fcn.00547ad7
add esp, 0x10
or eax, edx
je 0x54b224
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00547ad7
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x54af05
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00538f2d
add esp, 0xc
cmp eax, 0xffffffff
je 0x54af05
cmp eax, 2
je 0x54b1c8
cmp eax, 3
jne 0x54b216
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x54b1c8
mov byte [ebp - 2], 1
jmp 0x54b022
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x54b022
cmp eax, 2
jbe 0x54b224
cmp eax, 4
ja 0x54b019
push 2
push ebx
push ebx
push dword [esi]
call fcn.00547ad7
add esp, 0x10
or eax, edx
je 0x54b224
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00547ad7
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x54b022
jmp 0x54af05
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x54b1f0
push dword [esi]
call fcn.00543c9e
pop ecx
call fcn.00536f6e
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x54b2a5
cmp eax, 0xfeff
jne 0x54b216
push ebx
push 2
push dword [esi]
call fcn.00538ddf
add esp, 0xc
cmp eax, 0xffffffff
je 0x54af05
mov byte [ebp - 2], 2
jmp 0x54b022
push ebx
push ebx
push dword [esi]
call fcn.00538ddf
add esp, 0xc
jmp 0x54b1ba
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x54b244
dec eax
jne 0x54b022
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x54b252
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.00546096
add esp, 0xc
cmp eax, 0xffffffff
je 0x54b278
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x54b252
jmp 0x54b022
push dword [esi]
call fcn.00543c9e
pop ecx
call fcn.00536f6e
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x54b2a5
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5e4ee0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret