Function at 0x42124e
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 0x42127d
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x421287
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00424077
test eax, eax
pop ecx
je 0x4212a2
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0040f7db
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00415854
test eax, eax
pop ecx
je 0x4212bd
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0040f7db
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4212da
test ecx, 0x74000
jne 0x4212d6
cmp dword [ebp - 0x24], eax
je 0x4212da
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x421334
dec eax
je 0x42131e
dec eax
je 0x421319
call fcn.00411792
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041177f
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0040f8d7
add esp, 0x14
jmp 0x4218e6
mov dword [ebp - 8], edx
jmp 0x421337
test cl, 8
je 0x42132b
test ecx, 0x70000
jne 0x421319
mov dword [ebp - 8], 0x40000000
jmp 0x421337
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x421378
sub eax, ecx
je 0x42136f
sub eax, ecx
je 0x421366
sub eax, ecx
je 0x42135d
sub eax, 0x40
jne 0x4212f3
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x42137b
mov dword [ebp - 0x10], 3
jmp 0x42137b
mov dword [ebp - 0x10], 2
jmp 0x42137b
mov dword [ebp - 0x10], 1
jmp 0x42137b
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 0x4213ce
je 0x4213c5
cmp eax, ebx
je 0x4213c5
cmp eax, edi
je 0x4213bc
cmp eax, 0x200
je 0x421441
cmp eax, 0x300
jne 0x4212f3
mov dword [ebp - 0x14], 2
jmp 0x4213eb
mov dword [ebp - 0x14], 4
jmp 0x4213eb
mov dword [ebp - 0x14], 3
jmp 0x4213eb
cmp eax, 0x500
je 0x4213e4
cmp eax, 0x600
je 0x421441
cmp eax, edx
jne 0x4212f3
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x42140f
mov ecx, dword [0x430bf8]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x42140f
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x42142b
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x42142b
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x421434
or dword [ebp - 0xc], edi
test al, 0x20
je 0x42144a
or dword [ebp - 0xc], 0x8000000
jmp 0x421455
mov dword [ebp - 0x14], 5
jmp 0x4213eb
test al, 0x10
je 0x421455
or dword [ebp - 0xc], 0x10000000
call fcn.00420682
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x42147b
call fcn.00411792
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041177f
mov dword [eax], 0x18
jmp 0x421509
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 0x421515
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4214e1
test byte [ebp + 0x10], 1
je 0x4214e1
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 0x421515
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4326e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004117a5
pop ecx
call fcn.0041177f
mov eax, dword [eax]
jmp 0x4219a2
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x421566
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4326e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004117a5
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x421509
call fcn.0041177f
mov dword [eax], 0xd
jmp 0x421509
cmp eax, 2
jne 0x421571
or byte [ebp - 1], 0x40
jmp 0x42157a
cmp eax, 3
jne 0x42157a
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00420451
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4326e0]
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 + 0x4326e0]
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 0x42164f
test cl, 0x80
je 0x42171f
test byte [ebp + 0x10], 2
je 0x42164f
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0041b709
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x42160e
call fcn.00411792
cmp dword [eax], 0x83
je 0x42164f
push dword [esi]
call fcn.0041802a
jmp 0x421508
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0041b04b
add esp, 0xc
test eax, eax
jne 0x42163f
cmp byte [ebp - 4], 0x1a
jne 0x42163f
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00423e07
add esp, 0xc
cmp eax, edi
je 0x421602
push ebx
push ebx
push dword [esi]
call fcn.0041b709
add esp, 0xc
cmp eax, edi
je 0x421602
test byte [ebp - 1], 0x80
je 0x42171f
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x421677
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x421674
or dword [ebp + 0x10], edi
jmp 0x421677
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4216c4
cmp eax, 0x10000
je 0x4216b0
cmp eax, 0x14000
je 0x4216b0
cmp eax, 0x20000
je 0x4216be
cmp eax, 0x24000
je 0x4216be
cmp eax, 0x40000
je 0x4216aa
cmp eax, 0x44000
jne 0x4216c7
mov byte [ebp - 2], 1
jmp 0x4216c7
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4216c7
mov byte [ebp - 2], 2
jmp 0x4216c7
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x42171f
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x42171f
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x421879
cmp eax, 0x80000000
je 0x421840
cmp eax, ecx
jne 0x42171f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42171f
cmp eax, 2
jbe 0x421921
cmp eax, 4
jbe 0x421812
cmp eax, 5
je 0x421921
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4326e0]
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 + 0x4326e0]
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 0x421791
test byte [ebp + 0x10], 8
je 0x421791
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4326e0]
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 0x4219a0
test byte [ebp + 0x10], 1
je 0x4219a0
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 0x421989
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004117a5
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4326e0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004204ce
pop ecx
jmp 0x421508
push 2
push ebx
push ebx
push dword [esi]
call fcn.0041f14f
add esp, 0x10
or eax, edx
je 0x421921
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0041f14f
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x421602
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0041b04b
add esp, 0xc
cmp eax, 0xffffffff
je 0x421602
cmp eax, 2
je 0x4218c5
cmp eax, 3
jne 0x421913
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4218c5
mov byte [ebp - 2], 1
jmp 0x42171f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42171f
cmp eax, 2
jbe 0x421921
cmp eax, 4
ja 0x421716
push 2
push ebx
push ebx
push dword [esi]
call fcn.0041f14f
add esp, 0x10
or eax, edx
je 0x421921
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0041f14f
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x42171f
jmp 0x421602
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4218ed
push dword [esi]
call fcn.0041802a
pop ecx
call fcn.0041177f
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4219a2
cmp eax, 0xfeff
jne 0x421913
push ebx
push 2
push dword [esi]
call fcn.0041b709
add esp, 0xc
cmp eax, 0xffffffff
je 0x421602
mov byte [ebp - 2], 2
jmp 0x42171f
push ebx
push ebx
push dword [esi]
call fcn.0041b709
add esp, 0xc
jmp 0x4218b7
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x421941
dec eax
jne 0x42171f
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x42194f
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.0041980f
add esp, 0xc
cmp eax, 0xffffffff
je 0x421975
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x42194f
jmp 0x42171f
push dword [esi]
call fcn.0041802a
pop ecx
call fcn.0041177f
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4219a2
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4326e0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret