Function at 0x4894c1
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 0x4894f0
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4894fa
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0048c25d
test eax, eax
pop ecx
je 0x489515
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0046f8d4
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0047712f
test eax, eax
pop ecx
je 0x489530
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0046f8d4
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x48954d
test ecx, 0x74000
jne 0x489549
cmp dword [ebp - 0x24], eax
je 0x48954d
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4895a7
dec eax
je 0x489591
dec eax
je 0x48958c
call fcn.0047546a
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00475457
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0046f9d0
add esp, 0x14
jmp 0x489b5a
mov dword [ebp - 8], edx
jmp 0x4895aa
test cl, 8
je 0x48959e
test ecx, 0x70000
jne 0x48958c
mov dword [ebp - 8], 0x40000000
jmp 0x4895aa
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4895eb
sub eax, ecx
je 0x4895e2
sub eax, ecx
je 0x4895d9
sub eax, ecx
je 0x4895d0
sub eax, 0x40
jne 0x489566
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4895ee
mov dword [ebp - 0x10], 3
jmp 0x4895ee
mov dword [ebp - 0x10], 2
jmp 0x4895ee
mov dword [ebp - 0x10], 1
jmp 0x4895ee
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 0x489641
je 0x489638
cmp eax, ebx
je 0x489638
cmp eax, edi
je 0x48962f
cmp eax, 0x200
je 0x4896b4
cmp eax, 0x300
jne 0x489566
mov dword [ebp - 0x14], 2
jmp 0x48965e
mov dword [ebp - 0x14], 4
jmp 0x48965e
mov dword [ebp - 0x14], 3
jmp 0x48965e
cmp eax, 0x500
je 0x489657
cmp eax, 0x600
je 0x4896b4
cmp eax, edx
jne 0x489566
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x489682
mov ecx, dword [0x4e91b4]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x489682
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x48969e
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x48969e
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4896a7
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4896bd
or dword [ebp - 0xc], 0x8000000
jmp 0x4896c8
mov dword [ebp - 0x14], 5
jmp 0x48965e
test al, 0x10
je 0x4896c8
or dword [ebp - 0xc], 0x10000000
call fcn.004890e0
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4896ee
call fcn.0047546a
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00475457
mov dword [eax], 0x18
jmp 0x48977c
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 0x489788
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x489754
test byte [ebp + 0x10], 1
je 0x489754
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 0x489788
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4eb0a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047547d
pop ecx
call fcn.00475457
mov eax, dword [eax]
jmp 0x489c16
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4897d9
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4eb0a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0047547d
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x48977c
call fcn.00475457
mov dword [eax], 0xd
jmp 0x48977c
cmp eax, 2
jne 0x4897e4
or byte [ebp - 1], 0x40
jmp 0x4897ed
cmp eax, 3
jne 0x4897ed
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00488eaf
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4eb0a0]
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 + 0x4eb0a0]
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 0x4898c3
test cl, 0x80
je 0x489993
test byte [ebp + 0x10], 2
je 0x4898c3
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0048524a
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x489881
call fcn.0047546a
cmp dword [eax], 0x83
je 0x4898c3
push dword [esi]
call fcn.00482043
jmp 0x48977b
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00484b8c
add esp, 0xc
test eax, eax
jne 0x4898b3
cmp word [ebp - 0x2c], 0x1a
jne 0x4898b3
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0048bfed
add esp, 0xc
cmp eax, edi
je 0x489875
push ebx
push ebx
push dword [esi]
call fcn.0048524a
add esp, 0xc
cmp eax, edi
je 0x489875
test byte [ebp - 1], 0x80
je 0x489993
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4898eb
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4898e8
or dword [ebp + 0x10], edi
jmp 0x4898eb
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x489938
cmp eax, 0x10000
je 0x489924
cmp eax, 0x14000
je 0x489924
cmp eax, 0x20000
je 0x489932
cmp eax, 0x24000
je 0x489932
cmp eax, 0x40000
je 0x48991e
cmp eax, 0x44000
jne 0x48993b
mov byte [ebp - 2], 1
jmp 0x48993b
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x48993b
mov byte [ebp - 2], 2
jmp 0x48993b
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x489993
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x489993
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x489aed
cmp eax, 0x80000000
je 0x489ab4
cmp eax, ecx
jne 0x489993
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x489993
cmp eax, 2
jbe 0x489b95
cmp eax, 4
jbe 0x489a86
cmp eax, 5
je 0x489b95
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4eb0a0]
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 + 0x4eb0a0]
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 0x489a05
test byte [ebp + 0x10], 8
je 0x489a05
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4eb0a0]
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 0x489c14
test byte [ebp + 0x10], 1
je 0x489c14
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 0x489bfd
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047547d
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4eb0a0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00488f2c
pop ecx
jmp 0x48977b
push 2
push ebx
push ebx
push dword [esi]
call fcn.004875d5
add esp, 0x10
or eax, edx
je 0x489b95
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004875d5
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x489875
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00484b8c
add esp, 0xc
cmp eax, 0xffffffff
je 0x489875
cmp eax, 2
je 0x489b39
cmp eax, 3
jne 0x489b87
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x489b39
mov byte [ebp - 2], 1
jmp 0x489993
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x489993
cmp eax, 2
jbe 0x489b95
cmp eax, 4
ja 0x48998a
push 2
push ebx
push ebx
push dword [esi]
call fcn.004875d5
add esp, 0x10
or eax, edx
je 0x489b95
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004875d5
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x489993
jmp 0x489875
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x489b61
push dword [esi]
call fcn.00482043
pop ecx
call fcn.00475457
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x489c16
cmp eax, 0xfeff
jne 0x489b87
push ebx
push 2
push dword [esi]
call fcn.0048524a
add esp, 0xc
cmp eax, 0xffffffff
je 0x489875
mov byte [ebp - 2], 2
jmp 0x489993
push ebx
push ebx
push dword [esi]
call fcn.0048524a
add esp, 0xc
jmp 0x489b2b
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x489bb5
dec eax
jne 0x489993
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x489bc3
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.00482b3e
add esp, 0xc
cmp eax, 0xffffffff
je 0x489be9
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x489bc3
jmp 0x489993
push dword [esi]
call fcn.00482043
pop ecx
call fcn.00475457
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x489c16
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4eb0a0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret