Function at 0x4899a1
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 0x4899d0
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4899da
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0048c73d
test eax, eax
pop ecx
je 0x4899f5
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0046fdb4
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0047760f
test eax, eax
pop ecx
je 0x489a10
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0046fdb4
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x489a2d
test ecx, 0x74000
jne 0x489a29
cmp dword [ebp - 0x24], eax
je 0x489a2d
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x489a87
dec eax
je 0x489a71
dec eax
je 0x489a6c
call fcn.0047594a
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00475937
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0046feb0
add esp, 0x14
jmp 0x48a03a
mov dword [ebp - 8], edx
jmp 0x489a8a
test cl, 8
je 0x489a7e
test ecx, 0x70000
jne 0x489a6c
mov dword [ebp - 8], 0x40000000
jmp 0x489a8a
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x489acb
sub eax, ecx
je 0x489ac2
sub eax, ecx
je 0x489ab9
sub eax, ecx
je 0x489ab0
sub eax, 0x40
jne 0x489a46
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x489ace
mov dword [ebp - 0x10], 3
jmp 0x489ace
mov dword [ebp - 0x10], 2
jmp 0x489ace
mov dword [ebp - 0x10], 1
jmp 0x489ace
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, pe_nt_image_headers32
jg 0x489b21
je 0x489b18
cmp eax, ebx
je 0x489b18
cmp eax, edi
je 0x489b0f
cmp eax, 0x200
je 0x489b94
cmp eax, 0x300
jne 0x489a46
mov dword [ebp - 0x14], 2
jmp 0x489b3e
mov dword [ebp - 0x14], 4
jmp 0x489b3e
mov dword [ebp - 0x14], 3
jmp 0x489b3e
cmp eax, 0x500
je 0x489b37
cmp eax, 0x600
je 0x489b94
cmp eax, edx
jne 0x489a46
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x489b62
mov ecx, dword [0x4ea1b4]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x489b62
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x489b7e
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x489b7e
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x489b87
or dword [ebp - 0xc], edi
test al, 0x20
je 0x489b9d
or dword [ebp - 0xc], 0x8000000
jmp 0x489ba8
mov dword [ebp - 0x14], 5
jmp 0x489b3e
test al, 0x10
je 0x489ba8
or dword [ebp - 0xc], 0x10000000
call fcn.004895c0
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x489bce
call fcn.0047594a
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00475937
mov dword [eax], 0x18
jmp 0x489c5c
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 0x489c68
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x489c34
test byte [ebp + 0x10], 1
je 0x489c34
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 0x489c68
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4ec0a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047595d
pop ecx
call fcn.00475937
mov eax, dword [eax]
jmp 0x48a0f6
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x489cb9
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4ec0a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0047595d
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x489c5c
call fcn.00475937
mov dword [eax], 0xd
jmp 0x489c5c
cmp eax, 2
jne 0x489cc4
or byte [ebp - 1], 0x40
jmp 0x489ccd
cmp eax, 3
jne 0x489ccd
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0048938f
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4ec0a0]
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 + 0x4ec0a0]
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 0x489da3
test cl, 0x80
je 0x489e73
test byte [ebp + 0x10], 2
je 0x489da3
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00485696
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x489d61
call fcn.0047594a
cmp dword [eax], 0x83
je 0x489da3
push dword [esi]
call fcn.00482490
jmp 0x489c5b
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00484fd8
add esp, 0xc
test eax, eax
jne 0x489d93
cmp word [ebp - 0x2c], 0x1a
jne 0x489d93
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0048c4cd
add esp, 0xc
cmp eax, edi
je 0x489d55
push ebx
push ebx
push dword [esi]
call fcn.00485696
add esp, 0xc
cmp eax, edi
je 0x489d55
test byte [ebp - 1], 0x80
je 0x489e73
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x489dcb
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x489dc8
or dword [ebp + 0x10], edi
jmp 0x489dcb
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x489e18
cmp eax, 0x10000
je 0x489e04
cmp eax, 0x14000
je 0x489e04
cmp eax, 0x20000
je 0x489e12
cmp eax, 0x24000
je 0x489e12
cmp eax, 0x40000
je 0x489dfe
cmp eax, 0x44000
jne 0x489e1b
mov byte [ebp - 2], 1
jmp 0x489e1b
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x489e1b
mov byte [ebp - 2], 2
jmp 0x489e1b
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x489e73
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x489e73
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x489fcd
cmp eax, 0x80000000
je 0x489f94
cmp eax, ecx
jne 0x489e73
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x489e73
cmp eax, 2
jbe 0x48a075
cmp eax, 4
jbe 0x489f66
cmp eax, 5
je 0x48a075
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ec0a0]
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 + 0x4ec0a0]
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 0x489ee5
test byte [ebp + 0x10], 8
je 0x489ee5
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ec0a0]
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 0x48a0f4
test byte [ebp + 0x10], 1
je 0x48a0f4
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 0x48a0dd
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047595d
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ec0a0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0048940c
pop ecx
jmp 0x489c5b
push 2
push ebx
push ebx
push dword [esi]
call fcn.00487ab5
add esp, 0x10
or eax, edx
je 0x48a075
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00487ab5
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x489d55
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00484fd8
add esp, 0xc
cmp eax, 0xffffffff
je 0x489d55
cmp eax, 2
je 0x48a019
cmp eax, 3
jne 0x48a067
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x48a019
mov byte [ebp - 2], 1
jmp 0x489e73
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x489e73
cmp eax, 2
jbe 0x48a075
cmp eax, 4
ja 0x489e6a
push 2
push ebx
push ebx
push dword [esi]
call fcn.00487ab5
add esp, 0x10
or eax, edx
je 0x48a075
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00487ab5
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x489e73
jmp 0x489d55
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x48a041
push dword [esi]
call fcn.00482490
pop ecx
call fcn.00475937
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x48a0f6
cmp eax, 0xfeff
jne 0x48a067
push ebx
push 2
push dword [esi]
call fcn.00485696
add esp, 0xc
cmp eax, 0xffffffff
je 0x489d55
mov byte [ebp - 2], 2
jmp 0x489e73
push ebx
push ebx
push dword [esi]
call fcn.00485696
add esp, 0xc
jmp 0x48a00b
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x48a095
dec eax
jne 0x489e73
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x48a0a3
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.00482f8b
add esp, 0xc
cmp eax, 0xffffffff
je 0x48a0c9
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x48a0a3
jmp 0x489e73
push dword [esi]
call fcn.00482490
pop ecx
call fcn.00475937
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x48a0f6
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ec0a0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret