Function at 0x42cb73
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 0x42cba2
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x42cbac
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0042ea61
test eax, eax
pop ecx
je 0x42cbc7
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 0x42cbe2
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 0x42cbff
test ecx, 0x74000
jne 0x42cbfb
cmp dword [ebp - 0x24], eax
je 0x42cbff
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x42cc59
dec eax
je 0x42cc43
dec eax
je 0x42cc3e
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 0x42d20b
mov dword [ebp - 8], edx
jmp 0x42cc5c
test cl, 8
je 0x42cc50
test ecx, 0x70000
jne 0x42cc3e
mov dword [ebp - 8], 0x40000000
jmp 0x42cc5c
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x42cc9d
sub eax, ecx
je 0x42cc94
sub eax, ecx
je 0x42cc8b
sub eax, ecx
je 0x42cc82
sub eax, 0x40
jne 0x42cc18
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x42cca0
mov dword [ebp - 0x10], 3
jmp 0x42cca0
mov dword [ebp - 0x10], 2
jmp 0x42cca0
mov dword [ebp - 0x10], 1
jmp 0x42cca0
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 0x42ccf3
je 0x42ccea
cmp eax, ebx
je 0x42ccea
cmp eax, edi
je 0x42cce1
cmp eax, 0x200
je 0x42cd66
cmp eax, 0x300
jne 0x42cc18
mov dword [ebp - 0x14], 2
jmp 0x42cd10
mov dword [ebp - 0x14], 4
jmp 0x42cd10
mov dword [ebp - 0x14], 3
jmp 0x42cd10
cmp eax, 0x500
je 0x42cd09
cmp eax, 0x600
je 0x42cd66
cmp eax, edx
jne 0x42cc18
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x42cd34
mov ecx, dword [0x4460ac]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x42cd34
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x42cd50
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x42cd50
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x42cd59
or dword [ebp - 0xc], edi
test al, 0x20
je 0x42cd6f
or dword [ebp - 0xc], 0x8000000
jmp 0x42cd7a
mov dword [ebp - 0x14], 5
jmp 0x42cd10
test al, 0x10
je 0x42cd7a
or dword [ebp - 0xc], 0x10000000
call fcn.0042ace3
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x42cda0
call fcn.0041c7cc
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041c7b9
mov dword [eax], 0x18
jmp 0x42ce2e
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 0x42ce3a
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x42ce06
test byte [ebp + 0x10], 1
je 0x42ce06
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 0x42ce3a
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 0x42d2c7
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x42ce8b
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 0x42ce2e
call fcn.0041c7b9
mov dword [eax], 0xd
jmp 0x42ce2e
cmp eax, 2
jne 0x42ce96
or byte [ebp - 1], 0x40
jmp 0x42ce9f
cmp eax, 3
jne 0x42ce9f
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 0x42cf74
test cl, 0x80
je 0x42d044
test byte [ebp + 0x10], 2
je 0x42cf74
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 0x42cf33
call fcn.0041c7cc
cmp dword [eax], 0x83
je 0x42cf74
push dword [esi]
call fcn.00425088
jmp 0x42ce2d
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0042b307
add esp, 0xc
test eax, eax
jne 0x42cf64
cmp byte [ebp - 4], 0x1a
jne 0x42cf64
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0042e7f1
add esp, 0xc
cmp eax, edi
je 0x42cf27
push ebx
push ebx
push dword [esi]
call fcn.004241a1
add esp, 0xc
cmp eax, edi
je 0x42cf27
test byte [ebp - 1], 0x80
je 0x42d044
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x42cf9c
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x42cf99
or dword [ebp + 0x10], edi
jmp 0x42cf9c
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x42cfe9
cmp eax, 0x10000
je 0x42cfd5
cmp eax, 0x14000
je 0x42cfd5
cmp eax, 0x20000
je 0x42cfe3
cmp eax, 0x24000
je 0x42cfe3
cmp eax, 0x40000
je 0x42cfcf
cmp eax, 0x44000
jne 0x42cfec
mov byte [ebp - 2], 1
jmp 0x42cfec
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x42cfec
mov byte [ebp - 2], 2
jmp 0x42cfec
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x42d044
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x42d044
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x42d19e
cmp eax, 0x80000000
je 0x42d165
cmp eax, ecx
jne 0x42d044
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42d044
cmp eax, 2
jbe 0x42d246
cmp eax, 4
jbe 0x42d137
cmp eax, 5
je 0x42d246
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 0x42d0b6
test byte [ebp + 0x10], 8
je 0x42d0b6
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 0x42d2c5
test byte [ebp + 0x10], 1
je 0x42d2c5
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 0x42d2ae
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 0x42ce2d
push 2
push ebx
push ebx
push dword [esi]
call fcn.0042b16b
add esp, 0x10
or eax, edx
je 0x42d246
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0042b16b
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x42cf27
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0042b307
add esp, 0xc
cmp eax, 0xffffffff
je 0x42cf27
cmp eax, 2
je 0x42d1ea
cmp eax, 3
jne 0x42d238
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x42d1ea
mov byte [ebp - 2], 1
jmp 0x42d044
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42d044
cmp eax, 2
jbe 0x42d246
cmp eax, 4
ja 0x42d03b
push 2
push ebx
push ebx
push dword [esi]
call fcn.0042b16b
add esp, 0x10
or eax, edx
je 0x42d246
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0042b16b
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x42d044
jmp 0x42cf27
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x42d212
push dword [esi]
call fcn.00425088
pop ecx
call fcn.0041c7b9
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x42d2c7
cmp eax, 0xfeff
jne 0x42d238
push ebx
push 2
push dword [esi]
call fcn.004241a1
add esp, 0xc
cmp eax, 0xffffffff
je 0x42cf27
mov byte [ebp - 2], 2
jmp 0x42d044
push ebx
push ebx
push dword [esi]
call fcn.004241a1
add esp, 0xc
jmp 0x42d1dc
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x42d266
dec eax
jne 0x42d044
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x42d274
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 0x42d29a
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x42d274
jmp 0x42d044
push dword [esi]
call fcn.00425088
pop ecx
call fcn.0041c7b9
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x42d2c7
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