Function at 0x42b7a2
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 0x42b7d1
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x42b7db
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0042cddc
test eax, eax
pop ecx
je 0x42b7f6
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004227e0
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004209d4
test eax, eax
pop ecx
je 0x42b811
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004227e0
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x42b82e
test ecx, 0x74000
jne 0x42b82a
cmp dword [ebp - 0x24], eax
je 0x42b82e
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x42b888
dec eax
je 0x42b872
dec eax
je 0x42b86d
call fcn.00424051
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042403e
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004228dc
add esp, 0x14
jmp 0x42be3a
mov dword [ebp - 8], edx
jmp 0x42b88b
test cl, 8
je 0x42b87f
test ecx, 0x70000
jne 0x42b86d
mov dword [ebp - 8], 0x40000000
jmp 0x42b88b
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x42b8cc
sub eax, ecx
je 0x42b8c3
sub eax, ecx
je 0x42b8ba
sub eax, ecx
je 0x42b8b1
sub eax, 0x40
jne 0x42b847
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x42b8cf
mov dword [ebp - 0x10], 3
jmp 0x42b8cf
mov dword [ebp - 0x10], 2
jmp 0x42b8cf
mov dword [ebp - 0x10], 1
jmp 0x42b8cf
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 0x42b922
je 0x42b919
cmp eax, ebx
je 0x42b919
cmp eax, edi
je 0x42b910
cmp eax, 0x200
je 0x42b995
cmp eax, 0x300
jne 0x42b847
mov dword [ebp - 0x14], 2
jmp 0x42b93f
mov dword [ebp - 0x14], 4
jmp 0x42b93f
mov dword [ebp - 0x14], 3
jmp 0x42b93f
cmp eax, 0x500
je 0x42b938
cmp eax, 0x600
je 0x42b995
cmp eax, edx
jne 0x42b847
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x42b963
mov ecx, dword [0x440178]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x42b963
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x42b97f
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x42b97f
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x42b988
or dword [ebp - 0xc], edi
test al, 0x20
je 0x42b99e
or dword [ebp - 0xc], 0x8000000
jmp 0x42b9a9
mov dword [ebp - 0x14], 5
jmp 0x42b93f
test al, 0x10
je 0x42b9a9
or dword [ebp - 0xc], 0x10000000
call fcn.0042ade1
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x42b9cf
call fcn.00424051
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042403e
mov dword [eax], 0x18
jmp 0x42ba5d
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 0x42ba69
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x42ba35
test byte [ebp + 0x10], 1
je 0x42ba35
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 0x42ba69
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x444fa0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00424064
pop ecx
call fcn.0042403e
mov eax, dword [eax]
jmp 0x42bef6
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x42baba
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x444fa0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00424064
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x42ba5d
call fcn.0042403e
mov dword [eax], 0xd
jmp 0x42ba5d
cmp eax, 2
jne 0x42bac5
or byte [ebp - 1], 0x40
jmp 0x42bace
cmp eax, 3
jne 0x42bace
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0042abb0
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x444fa0]
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 + 0x444fa0]
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 0x42bba3
test cl, 0x80
je 0x42bc73
test byte [ebp + 0x10], 2
je 0x42bba3
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00426e4d
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x42bb62
call fcn.00424051
cmp dword [eax], 0x83
je 0x42bba3
push dword [esi]
call fcn.004272ea
jmp 0x42ba5c
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00427abb
add esp, 0xc
test eax, eax
jne 0x42bb93
cmp byte [ebp - 4], 0x1a
jne 0x42bb93
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0042cb6c
add esp, 0xc
cmp eax, edi
je 0x42bb56
push ebx
push ebx
push dword [esi]
call fcn.00426e4d
add esp, 0xc
cmp eax, edi
je 0x42bb56
test byte [ebp - 1], 0x80
je 0x42bc73
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x42bbcb
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x42bbc8
or dword [ebp + 0x10], edi
jmp 0x42bbcb
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x42bc18
cmp eax, 0x10000
je 0x42bc04
cmp eax, 0x14000
je 0x42bc04
cmp eax, 0x20000
je 0x42bc12
cmp eax, 0x24000
je 0x42bc12
cmp eax, 0x40000
je 0x42bbfe
cmp eax, 0x44000
jne 0x42bc1b
mov byte [ebp - 2], 1
jmp 0x42bc1b
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x42bc1b
mov byte [ebp - 2], 2
jmp 0x42bc1b
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x42bc73
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x42bc73
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x42bdcd
cmp eax, 0x80000000
je 0x42bd94
cmp eax, ecx
jne 0x42bc73
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42bc73
cmp eax, 2
jbe 0x42be75
cmp eax, 4
jbe 0x42bd66
cmp eax, 5
je 0x42be75
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x444fa0]
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 + 0x444fa0]
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 0x42bce5
test byte [ebp + 0x10], 8
je 0x42bce5
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x444fa0]
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 0x42bef4
test byte [ebp + 0x10], 1
je 0x42bef4
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 0x42bedd
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00424064
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x444fa0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0042ac2d
pop ecx
jmp 0x42ba5c
push 2
push ebx
push ebx
push dword [esi]
call fcn.0042c50f
add esp, 0x10
or eax, edx
je 0x42be75
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0042c50f
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x42bb56
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00427abb
add esp, 0xc
cmp eax, 0xffffffff
je 0x42bb56
cmp eax, 2
je 0x42be19
cmp eax, 3
jne 0x42be67
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x42be19
mov byte [ebp - 2], 1
jmp 0x42bc73
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42bc73
cmp eax, 2
jbe 0x42be75
cmp eax, 4
ja 0x42bc6a
push 2
push ebx
push ebx
push dword [esi]
call fcn.0042c50f
add esp, 0x10
or eax, edx
je 0x42be75
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0042c50f
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x42bc73
jmp 0x42bb56
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x42be41
push dword [esi]
call fcn.004272ea
pop ecx
call fcn.0042403e
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x42bef6
cmp eax, 0xfeff
jne 0x42be67
push ebx
push 2
push dword [esi]
call fcn.00426e4d
add esp, 0xc
cmp eax, 0xffffffff
je 0x42bb56
mov byte [ebp - 2], 2
jmp 0x42bc73
push ebx
push ebx
push dword [esi]
call fcn.00426e4d
add esp, 0xc
jmp 0x42be0b
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x42be95
dec eax
jne 0x42bc73
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x42bea3
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.0042b5e5
add esp, 0xc
cmp eax, 0xffffffff
je 0x42bec9
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x42bea3
jmp 0x42bc73
push dword [esi]
call fcn.004272ea
pop ecx
call fcn.0042403e
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x42bef6
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x444fa0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret