Function at 0x61581c
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x38
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 - 0x38], 0xc
mov dword [ebp - 0x34], ebx
je 0x61584b
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x615855
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00603893
test eax, eax
pop ecx
je 0x615870
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.005e5b38
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.005efa41
test eax, eax
pop ecx
je 0x61588b
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.005e5b38
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x6158a8
test ecx, 0x74000
jne 0x6158a4
cmp dword [ebp - 0x24], eax
je 0x6158a8
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x615902
dec eax
je 0x6158ec
dec eax
je 0x6158e7
call fcn.005e61fa
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.005e61e7
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.005e5c34
add esp, 0x14
jmp 0x615eb5
mov dword [ebp - 8], edx
jmp 0x615905
test cl, 8
je 0x6158f9
test ecx, 0x70000
jne 0x6158e7
mov dword [ebp - 8], 0x40000000
jmp 0x615905
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x615946
sub eax, ecx
je 0x61593d
sub eax, ecx
je 0x615934
sub eax, ecx
je 0x61592b
sub eax, 0x40
jne 0x6158c1
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x615949
mov dword [ebp - 0x10], 3
jmp 0x615949
mov dword [ebp - 0x10], 2
jmp 0x615949
mov dword [ebp - 0x10], 1
jmp 0x615949
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 0x61599c
je 0x615993
cmp eax, ebx
je 0x615993
cmp eax, edi
je 0x61598a
cmp eax, 0x200
je 0x615a0f
cmp eax, 0x300
jne 0x6158c1
mov dword [ebp - 0x14], 2
jmp 0x6159b9
mov dword [ebp - 0x14], 4
jmp 0x6159b9
mov dword [ebp - 0x14], 3
jmp 0x6159b9
cmp eax, 0x500
je 0x6159b2
cmp eax, 0x600
je 0x615a0f
cmp eax, edx
jne 0x6158c1
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x6159dd
mov ecx, dword [0x6dab9c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x6159dd
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x6159f9
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x6159f9
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x615a02
or dword [ebp - 0xc], edi
test al, 0x20
je 0x615a18
or dword [ebp - 0xc], 0x8000000
jmp 0x615a23
mov dword [ebp - 0x14], 5
jmp 0x6159b9
test al, 0x10
je 0x615a23
or dword [ebp - 0xc], 0x10000000
call fcn.005fd151
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x615a49
call fcn.005e61fa
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.005e61e7
mov dword [eax], 0x18
jmp 0x615ad7
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileW]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x38]
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 0x615ae3
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x615aaf
test byte [ebp + 0x10], 1
je 0x615aaf
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
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 0x615ae3
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x6dba60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.005e620d
pop ecx
call fcn.005e61e7
mov eax, dword [eax]
jmp 0x615f71
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x615b34
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x6dba60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.005e620d
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x615ad7
call fcn.005e61e7
mov dword [eax], 0xd
jmp 0x615ad7
cmp eax, 2
jne 0x615b3f
or byte [ebp - 1], 0x40
jmp 0x615b48
cmp eax, 3
jne 0x615b48
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.005fcf20
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x6dba60]
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 + 0x6dba60]
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 0x615c1e
test cl, 0x80
je 0x615cee
test byte [ebp + 0x10], 2
je 0x615c1e
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.005eeaf4
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x615bdc
call fcn.005e61fa
cmp dword [eax], 0x83
je 0x615c1e
push dword [esi]
call fcn.005f8bae
jmp 0x615ad6
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.005eec42
add esp, 0xc
test eax, eax
jne 0x615c0e
cmp word [ebp - 0x2c], 0x1a
jne 0x615c0e
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00603623
add esp, 0xc
cmp eax, edi
je 0x615bd0
push ebx
push ebx
push dword [esi]
call fcn.005eeaf4
add esp, 0xc
cmp eax, edi
je 0x615bd0
test byte [ebp - 1], 0x80
je 0x615cee
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x615c46
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x615c43
or dword [ebp + 0x10], edi
jmp 0x615c46
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x615c93
cmp eax, 0x10000
je 0x615c7f
cmp eax, 0x14000
je 0x615c7f
cmp eax, 0x20000
je 0x615c8d
cmp eax, 0x24000
je 0x615c8d
cmp eax, 0x40000
je 0x615c79
cmp eax, 0x44000
jne 0x615c96
mov byte [ebp - 2], 1
jmp 0x615c96
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x615c96
mov byte [ebp - 2], 2
jmp 0x615c96
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x615cee
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x615cee
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x615e48
cmp eax, 0x80000000
je 0x615e0f
cmp eax, ecx
jne 0x615cee
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x615cee
cmp eax, 2
jbe 0x615ef0
cmp eax, 4
jbe 0x615de1
cmp eax, 5
je 0x615ef0
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6dba60]
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 + 0x6dba60]
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 0x615d60
test byte [ebp + 0x10], 8
je 0x615d60
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6dba60]
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 0x615f6f
test byte [ebp + 0x10], 1
je 0x615f6f
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileW]
cmp eax, 0xffffffff
jne 0x615f58
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.005e620d
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6dba60]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.005fcf9d
pop ecx
jmp 0x615ad6
push 2
push ebx
push ebx
push dword [esi]
call fcn.005fd2f0
add esp, 0x10
or eax, edx
je 0x615ef0
push ebx
push ebx
push ebx
push dword [esi]
call fcn.005fd2f0
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x615bd0
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.005eec42
add esp, 0xc
cmp eax, 0xffffffff
je 0x615bd0
cmp eax, 2
je 0x615e94
cmp eax, 3
jne 0x615ee2
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x615e94
mov byte [ebp - 2], 1
jmp 0x615cee
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x615cee
cmp eax, 2
jbe 0x615ef0
cmp eax, 4
ja 0x615ce5
push 2
push ebx
push ebx
push dword [esi]
call fcn.005fd2f0
add esp, 0x10
or eax, edx
je 0x615ef0
push ebx
push ebx
push ebx
push dword [esi]
call fcn.005fd2f0
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x615cee
jmp 0x615bd0
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x615ebc
push dword [esi]
call fcn.005f8bae
pop ecx
call fcn.005e61e7
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x615f71
cmp eax, 0xfeff
jne 0x615ee2
push ebx
push 2
push dword [esi]
call fcn.005eeaf4
add esp, 0xc
cmp eax, 0xffffffff
je 0x615bd0
mov byte [ebp - 2], 2
jmp 0x615cee
push ebx
push ebx
push dword [esi]
call fcn.005eeaf4
add esp, 0xc
jmp 0x615e86
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x615f10
dec eax
jne 0x615cee
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x615f1e
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.005f981e
add esp, 0xc
cmp eax, 0xffffffff
je 0x615f44
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x615f1e
jmp 0x615cee
push dword [esi]
call fcn.005f8bae
pop ecx
call fcn.005e61e7
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x615f71
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6dba60]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret