Function at 0x10123020
Capabilities:
Parse credit card information

Disassembly:
push ebx
push ebp
mov ebp, dword [esp + 0x18]
push esi
push edi
test ebp, ebp
je 0x10123256
mov esi, dword [esp + 0x18]
push ebp
push 1
push esi
call sub.VCRUNTIME140.dll_memset
mov edi, dword [esp + 0x20]
add esp, 0xc
mov eax, dword [edi + 0x4c]
mov edx, dword [eax + 0x20]
test edx, edx
je 0x1012306c
nop
mov eax, dword [edi + 0x4c]
mov ecx, dword [edx + 0x10]
mov eax, dword [eax + 0x10]
cmp ecx, eax
jb 0x1012306c
sub ecx, eax
sar ecx, 3
mov byte [ecx + esi], 0
mov edx, dword [edx]
test edx, edx
jne 0x10123050
mov ecx, dword [esp + 0x1c]
mov ebx, dword [ecx]
add ecx, 4
movzx edi, bl
mov edx, ebx
mov dword [esp + 0x1c], ecx
shr edx, 0x18
movzx eax, word [edi*2 + 0x101447e0]
mov ecx, eax
and al, 0x78
cmp al, 0x18
jne 0x1012309f
and byte [edx + esi], 0xfe
movzx eax, word [edi*2 + 0x101447e0]
jmp 0x101230a1
mov eax, ecx
shr eax, 7
and eax, 0xf
add eax, 0xfffffffd
cmp eax, 0xa
ja case.0x101230b6.5
movzx eax, byte [eax + 0x101233ec]
jmp dword [eax*4 + 0x101233d4]
mov eax, ebx
shr eax, 0x10
movzx eax, al
and byte [eax + esi], 0xfe
mov ecx, dword [esp + 0x1c]
movzx eax, word [edi*2 + 0x101447e0]
and eax, 7
sub eax, 1
je 0x101232b1
sub eax, 1
je 0x101231be
sub eax, 1
jne 0x10123070
shr ebx, 8
movzx eax, bl
and byte [eax + esi], 0xfe
jmp 0x10123070
mov eax, ebx
shr eax, 0x10
movzx eax, al
cmp edx, eax
ja 0x10123119
nop word [eax + eax]
and byte [edx + esi], 0xfe
inc edx
cmp edx, eax
jbe 0x10123110
cmp edx, ebp
jae case.0x101230b6.5
nop dword [eax]
mov cl, byte [edx + esi]
mov al, cl
add cl, cl
add al, cl
mov byte [edx + esi], al
inc edx
cmp edx, ebp
jb 0x10123120
jmp case.0x101230b6.5
cmp edi, 0x4d
je case.0x101230b6.13
cmp edi, 0x50
je case.0x101230b6.13
cmp edi, 0x53
je case.0x101230b6.13
cmp edi, 0x45
je 0x1012315a
cmp edi, 0x46
je 0x1012315a
cmp edi, 0x47
je 0x1012315a
cmp edi, 0x48
jne case.0x101230b6.5
mov eax, ebx
shr eax, 8
cmp edi, 0x45
jne 0x101232da
mov edi, ebp
movzx ebx, al
jmp 0x101232eb
mov eax, ebx
shr eax, 8
movzx ecx, al
mov dword [esp + 0x20], ecx
cmp edi, 0x49
jb 0x1012318c
cmp edi, 0x4d
jbe 0x10123399
cmp edi, 0x4e
jb 0x1012319a
cmp edi, 0x50
jbe 0x1012339e
cmp edi, 0x30
jne 0x101233ad
mov ecx, dword [esp + 0x1c]
mov eax, ebx
shr eax, 0x10
lea ecx, [ecx + eax*4]
add ecx, 0xfffe0000
mov dword [esp + 0x1c], ecx
jmp 0x101230cd
lea eax, [edi - 0x3d]
cmp eax, 6
ja 0x1012325d
cmp edi, 0x3d
je 0x101231ea
cmp edi, 0x3f
je 0x101231ea
mov eax, ebx
shr eax, 0x10
movzx eax, al
test eax, eax
je 0x101231ea
shr ebx, 8
movzx ecx, bl
add ecx, eax
jmp 0x101231ef
mov ecx, ebp
shr ebx, 8
cmp edi, 0x41
je 0x101231fd
cmp edi, 0x42
je 0x101231fd
xor edx, edx
jmp 0x10123202
mov edx, 3
movzx ebx, bl
mov eax, ebx
sub eax, edx
cmp eax, ecx
jae 0x10123219
nop dword [eax]
and byte [eax + esi], 0xfe
inc eax
cmp eax, ecx
jb 0x10123210
cmp eax, ebp
jae 0x10123231
nop dword [eax]
mov dl, byte [eax + esi]
mov cl, dl
add dl, dl
add cl, dl
mov byte [eax + esi], cl
inc eax
cmp eax, ebp
jb 0x10123220
cmp edi, 0x40
je 0x1012323f
cmp edi, 0x3f
jne 0x1012306c
xor edx, edx
test ebx, ebx
je 0x10123256
mov cl, byte [edx + esi]
mov al, cl
add cl, cl
add al, cl
mov byte [edx + esi], al
inc edx
cmp edx, ebx
jb 0x10123245
pop edi
pop esi
pop ebp
xor eax, eax
pop ebx
ret
cmp edi, 0x2a
jne 0x1012328b
mov eax, ebx
shr ebx, 0x10
shr eax, 8
movzx edx, al
cmp edx, ebx
ja 0x10123070
mov cl, byte [edx + esi]
mov al, cl
add cl, cl
add al, cl
mov byte [edx + esi], al
inc edx
cmp edx, ebx
jbe 0x10123275
jmp 0x1012306c
cmp edi, 0x3c
jne 0x10123070
shr ebx, 8
movzx eax, bl
dec eax
cmp eax, ebp
jae 0x10123070
and byte [eax + esi], 0xfe
inc eax
cmp eax, ebp
jb 0x101232a3
jmp 0x10123070
cmp edi, 0xc
je 0x10123070
cmp edi, 0xd
je 0x10123070
shr ebx, 8
movzx edx, bl
mov cl, byte [edx + esi]
mov al, cl
add cl, cl
add al, cl
mov byte [edx + esi], al
jmp 0x1012306c
shr ebx, 0x10
movzx eax, al
mov dword [esp + 0x20], eax
lea edi, [ebx - 1]
mov ebx, eax
add edi, eax
xor edx, edx
test ebx, ebx
je 0x10123302
mov cl, byte [edx + esi]
mov al, cl
add cl, cl
add al, cl
mov byte [edx + esi], al
inc edx
cmp edx, ebx
jb 0x101232f1
mov eax, edi
sub eax, edx
cmp edx, edi
jae 0x10123379
cmp eax, 0x40
jb 0x10123368
movaps xmm2, xmmword [0x10145180]
and eax, 0x3f
mov ecx, edi
sub ecx, eax
lea eax, [esi + 0x20]
add eax, edx
movups xmm0, xmmword [eax - 0x20]
lea eax, [eax + 0x40]
add edx, 0x40
movaps xmm1, xmm2
pand xmm1, xmm0
movups xmmword [eax - 0x60], xmm1
movaps xmm1, xmm2
movups xmm0, xmmword [eax - 0x50]
pand xmm1, xmm0
movups xmmword [eax - 0x50], xmm1
movaps xmm1, xmm2
movups xmm0, xmmword [eax - 0x40]
pand xmm1, xmm0
movups xmmword [eax - 0x40], xmm1
movaps xmm1, xmm2
movups xmm0, xmmword [eax - 0x30]
pand xmm1, xmm0
movups xmmword [eax - 0x30], xmm1
cmp edx, ecx
jb 0x10123322
cmp edx, edi
jae 0x10123379
nop dword [eax]
and byte [edx + esi], 0xfe
inc edx
cmp edx, edi
jb 0x10123370
cmp edx, ebp
jae 0x10123256
mov cl, byte [edx + esi]
mov al, cl
add cl, cl
add al, cl
mov byte [edx + esi], al
inc edx
cmp edx, ebp
jb 0x10123381
pop edi
pop esi
pop ebp
xor eax, eax
pop ebx
ret
add ecx, 3
jmp 0x101233a9
mov eax, dword [esp + 0x1c]
movzx eax, byte [eax - 5]
dec eax
add ecx, eax
mov dword [esp + 0x20], ecx
mov edx, ecx
cmp ecx, ebp
jae 0x101233ca
mov cl, byte [edx + esi]
mov al, cl
add cl, cl
add al, cl
mov byte [edx + esi], al
inc edx
cmp edx, ebp
jb 0x101233b3
mov ecx, dword [esp + 0x20]
cmp ecx, ebp
cmovb ebp, ecx
pop edi
pop esi
mov eax, ebp
pop ebp
pop ebx
ret