Function at 0x48fb42
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 0x48fb71
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x48fb7b
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00491b9d
test eax, eax
pop ecx
je 0x48fb96
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004752c6
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0047cd0e
test eax, eax
pop ecx
je 0x48fbb1
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004752c6
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x48fbce
test ecx, 0x74000
jne 0x48fbca
cmp dword [ebp - 0x24], eax
je 0x48fbce
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x48fc28
dec eax
je 0x48fc12
dec eax
je 0x48fc0d
call fcn.0047b21a
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0047b207
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004753c2
add esp, 0x14
jmp 0x4901da
mov dword [ebp - 8], edx
jmp 0x48fc2b
test cl, 8
je 0x48fc1f
test ecx, 0x70000
jne 0x48fc0d
mov dword [ebp - 8], 0x40000000
jmp 0x48fc2b
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x48fc6c
sub eax, ecx
je 0x48fc63
sub eax, ecx
je 0x48fc5a
sub eax, ecx
je 0x48fc51
sub eax, 0x40
jne 0x48fbe7
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x48fc6f
mov dword [ebp - 0x10], 3
jmp 0x48fc6f
mov dword [ebp - 0x10], 2
jmp 0x48fc6f
mov dword [ebp - 0x10], 1
jmp 0x48fc6f
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 0x48fcc2
je 0x48fcb9
cmp eax, ebx
je 0x48fcb9
cmp eax, edi
je 0x48fcb0
cmp eax, 0x200
je 0x48fd35
cmp eax, 0x300
jne 0x48fbe7
mov dword [ebp - 0x14], 2
jmp 0x48fcdf
mov dword [ebp - 0x14], 4
jmp 0x48fcdf
mov dword [ebp - 0x14], 3
jmp 0x48fcdf
cmp eax, 0x500
je 0x48fcd8
cmp eax, 0x600
je 0x48fd35
cmp eax, edx
jne 0x48fbe7
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x48fd03
mov ecx, dword [0x4f30dc]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x48fd03
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x48fd1f
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x48fd1f
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x48fd28
or dword [ebp - 0xc], edi
test al, 0x20
je 0x48fd3e
or dword [ebp - 0xc], 0x8000000
jmp 0x48fd49
mov dword [ebp - 0x14], 5
jmp 0x48fcdf
test al, 0x10
je 0x48fd49
or dword [ebp - 0xc], 0x10000000
call fcn.0048ea23
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x48fd6f
call fcn.0047b21a
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0047b207
mov dword [eax], 0x18
jmp 0x48fdfd
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 0x48fe09
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x48fdd5
test byte [ebp + 0x10], 1
je 0x48fdd5
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 0x48fe09
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4f4fc0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047b22d
pop ecx
call fcn.0047b207
mov eax, dword [eax]
jmp 0x490296
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x48fe5a
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4f4fc0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0047b22d
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x48fdfd
call fcn.0047b207
mov dword [eax], 0xd
jmp 0x48fdfd
cmp eax, 2
jne 0x48fe65
or byte [ebp - 1], 0x40
jmp 0x48fe6e
cmp eax, 3
jne 0x48fe6e
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0048e7f2
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4f4fc0]
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 + 0x4f4fc0]
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 0x48ff43
test cl, 0x80
je 0x490013
test byte [ebp + 0x10], 2
je 0x48ff43
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0048b63c
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x48ff02
call fcn.0047b21a
cmp dword [eax], 0x83
je 0x48ff43
push dword [esi]
call fcn.004890b6
jmp 0x48fdfc
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0048af7e
add esp, 0xc
test eax, eax
jne 0x48ff33
cmp byte [ebp - 4], 0x1a
jne 0x48ff33
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0049192d
add esp, 0xc
cmp eax, edi
je 0x48fef6
push ebx
push ebx
push dword [esi]
call fcn.0048b63c
add esp, 0xc
cmp eax, edi
je 0x48fef6
test byte [ebp - 1], 0x80
je 0x490013
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x48ff6b
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x48ff68
or dword [ebp + 0x10], edi
jmp 0x48ff6b
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x48ffb8
cmp eax, 0x10000
je 0x48ffa4
cmp eax, 0x14000
je 0x48ffa4
cmp eax, 0x20000
je 0x48ffb2
cmp eax, 0x24000
je 0x48ffb2
cmp eax, 0x40000
je 0x48ff9e
cmp eax, 0x44000
jne 0x48ffbb
mov byte [ebp - 2], 1
jmp 0x48ffbb
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x48ffbb
mov byte [ebp - 2], 2
jmp 0x48ffbb
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x490013
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x490013
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x49016d
cmp eax, 0x80000000
je 0x490134
cmp eax, ecx
jne 0x490013
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x490013
cmp eax, 2
jbe 0x490215
cmp eax, 4
jbe 0x490106
cmp eax, 5
je 0x490215
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4f4fc0]
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 + 0x4f4fc0]
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 0x490085
test byte [ebp + 0x10], 8
je 0x490085
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4f4fc0]
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 0x490294
test byte [ebp + 0x10], 1
je 0x490294
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 0x49027d
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047b22d
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4f4fc0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0048e86f
pop ecx
jmp 0x48fdfc
push 2
push ebx
push ebx
push dword [esi]
call fcn.0048cf9f
add esp, 0x10
or eax, edx
je 0x490215
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0048cf9f
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x48fef6
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0048af7e
add esp, 0xc
cmp eax, 0xffffffff
je 0x48fef6
cmp eax, 2
je 0x4901b9
cmp eax, 3
jne 0x490207
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4901b9
mov byte [ebp - 2], 1
jmp 0x490013
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x490013
cmp eax, 2
jbe 0x490215
cmp eax, 4
ja 0x49000a
push 2
push ebx
push ebx
push dword [esi]
call fcn.0048cf9f
add esp, 0x10
or eax, edx
je 0x490215
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0048cf9f
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x490013
jmp 0x48fef6
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4901e1
push dword [esi]
call fcn.004890b6
pop ecx
call fcn.0047b207
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x490296
cmp eax, 0xfeff
jne 0x490207
push ebx
push 2
push dword [esi]
call fcn.0048b63c
add esp, 0xc
cmp eax, 0xffffffff
je 0x48fef6
mov byte [ebp - 2], 2
jmp 0x490013
push ebx
push ebx
push dword [esi]
call fcn.0048b63c
add esp, 0xc
jmp 0x4901ab
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x490235
dec eax
jne 0x490013
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x490243
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.00489bb1
add esp, 0xc
cmp eax, 0xffffffff
je 0x490269
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x490243
jmp 0x490013
push dword [esi]
call fcn.004890b6
pop ecx
call fcn.0047b207
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x490296
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4f4fc0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret