Function at 0x42d763
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 0x42d792
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x42d79c
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0042ea61
test eax, eax
pop ecx
je 0x42d7b7
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0041a745
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00421aaa
test eax, eax
pop ecx
je 0x42d7d2
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0041a745
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x42d7ef
test ecx, 0x74000
jne 0x42d7eb
cmp dword [ebp - 0x24], eax
je 0x42d7ef
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x42d849
dec eax
je 0x42d833
dec eax
je 0x42d82e
call fcn.0041c7cc
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041c7b9
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0041a841
add esp, 0x14
jmp 0x42ddfc
mov dword [ebp - 8], edx
jmp 0x42d84c
test cl, 8
je 0x42d840
test ecx, 0x70000
jne 0x42d82e
mov dword [ebp - 8], 0x40000000
jmp 0x42d84c
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x42d88d
sub eax, ecx
je 0x42d884
sub eax, ecx
je 0x42d87b
sub eax, ecx
je 0x42d872
sub eax, 0x40
jne 0x42d808
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x42d890
mov dword [ebp - 0x10], 3
jmp 0x42d890
mov dword [ebp - 0x10], 2
jmp 0x42d890
mov dword [ebp - 0x10], 1
jmp 0x42d890
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 0x42d8e3
je 0x42d8da
cmp eax, ebx
je 0x42d8da
cmp eax, edi
je 0x42d8d1
cmp eax, 0x200
je 0x42d956
cmp eax, 0x300
jne 0x42d808
mov dword [ebp - 0x14], 2
jmp 0x42d900
mov dword [ebp - 0x14], 4
jmp 0x42d900
mov dword [ebp - 0x14], 3
jmp 0x42d900
cmp eax, 0x500
je 0x42d8f9
cmp eax, 0x600
je 0x42d956
cmp eax, edx
jne 0x42d808
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x42d924
mov ecx, dword [0x4460ac]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x42d924
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x42d940
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x42d940
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x42d949
or dword [ebp - 0xc], edi
test al, 0x20
je 0x42d95f
or dword [ebp - 0xc], 0x8000000
jmp 0x42d96a
mov dword [ebp - 0x14], 5
jmp 0x42d900
test al, 0x10
je 0x42d96a
or dword [ebp - 0xc], 0x10000000
call fcn.0042ace3
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x42d990
call fcn.0041c7cc
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041c7b9
mov dword [eax], 0x18
jmp 0x42da1e
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 0x42da2a
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x42d9f6
test byte [ebp + 0x10], 1
je 0x42d9f6
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 0x42da2a
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x446ea0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0041c7df
pop ecx
call fcn.0041c7b9
mov eax, dword [eax]
jmp 0x42deb8
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x42da7b
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x446ea0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0041c7df
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x42da1e
call fcn.0041c7b9
mov dword [eax], 0xd
jmp 0x42da1e
cmp eax, 2
jne 0x42da86
or byte [ebp - 1], 0x40
jmp 0x42da8f
cmp eax, 3
jne 0x42da8f
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0042aab2
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x446ea0]
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 + 0x446ea0]
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 0x42db65
test cl, 0x80
je 0x42dc35
test byte [ebp + 0x10], 2
je 0x42db65
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004241a1
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x42db23
call fcn.0041c7cc
cmp dword [eax], 0x83
je 0x42db65
push dword [esi]
call fcn.00425088
jmp 0x42da1d
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.0042b307
add esp, 0xc
test eax, eax
jne 0x42db55
cmp word [ebp - 0x2c], 0x1a
jne 0x42db55
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0042e7f1
add esp, 0xc
cmp eax, edi
je 0x42db17
push ebx
push ebx
push dword [esi]
call fcn.004241a1
add esp, 0xc
cmp eax, edi
je 0x42db17
test byte [ebp - 1], 0x80
je 0x42dc35
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x42db8d
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x42db8a
or dword [ebp + 0x10], edi
jmp 0x42db8d
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x42dbda
cmp eax, 0x10000
je 0x42dbc6
cmp eax, 0x14000
je 0x42dbc6
cmp eax, 0x20000
je 0x42dbd4
cmp eax, 0x24000
je 0x42dbd4
cmp eax, 0x40000
je 0x42dbc0
cmp eax, 0x44000
jne 0x42dbdd
mov byte [ebp - 2], 1
jmp 0x42dbdd
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x42dbdd
mov byte [ebp - 2], 2
jmp 0x42dbdd
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x42dc35
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x42dc35
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x42dd8f
cmp eax, 0x80000000
je 0x42dd56
cmp eax, ecx
jne 0x42dc35
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42dc35
cmp eax, 2
jbe 0x42de37
cmp eax, 4
jbe 0x42dd28
cmp eax, 5
je 0x42de37
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x446ea0]
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 + 0x446ea0]
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 0x42dca7
test byte [ebp + 0x10], 8
je 0x42dca7
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x446ea0]
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 0x42deb6
test byte [ebp + 0x10], 1
je 0x42deb6
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 0x42de9f
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0041c7df
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x446ea0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0042ab2f
pop ecx
jmp 0x42da1d
push 2
push ebx
push ebx
push dword [esi]
call fcn.0042b16b
add esp, 0x10
or eax, edx
je 0x42de37
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0042b16b
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x42db17
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0042b307
add esp, 0xc
cmp eax, 0xffffffff
je 0x42db17
cmp eax, 2
je 0x42dddb
cmp eax, 3
jne 0x42de29
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x42dddb
mov byte [ebp - 2], 1
jmp 0x42dc35
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42dc35
cmp eax, 2
jbe 0x42de37
cmp eax, 4
ja 0x42dc2c
push 2
push ebx
push ebx
push dword [esi]
call fcn.0042b16b
add esp, 0x10
or eax, edx
je 0x42de37
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0042b16b
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x42dc35
jmp 0x42db17
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x42de03
push dword [esi]
call fcn.00425088
pop ecx
call fcn.0041c7b9
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x42deb8
cmp eax, 0xfeff
jne 0x42de29
push ebx
push 2
push dword [esi]
call fcn.004241a1
add esp, 0xc
cmp eax, 0xffffffff
je 0x42db17
mov byte [ebp - 2], 2
jmp 0x42dc35
push ebx
push ebx
push dword [esi]
call fcn.004241a1
add esp, 0xc
jmp 0x42ddcd
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x42de57
dec eax
jne 0x42dc35
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x42de65
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.00424c1b
add esp, 0xc
cmp eax, 0xffffffff
je 0x42de8b
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x42de65
jmp 0x42dc35
push dword [esi]
call fcn.00425088
pop ecx
call fcn.0041c7b9
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x42deb8
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x446ea0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret