Function at 0x180142100
Capabilities:
Encode data using xor
Generate random numbers using the delphi lcg
Hash data with crc32

Disassembly:
push r15
push r14
push r13
push r12
push rsi
push rdi
push rbp
push rbx
sub rsp, 0xe8
movdqa xmmword [rsp + 0xd0], xmm6
mov r14, r9
mov r15, r8
mov rdi, rdx
mov rsi, rcx
movzx eax, byte [rdx]
test rax, rax
je 0x18014218d
cmp eax, 1
jne 0x1801421d1
mov rbx, qword [rdi + 0x18]
test rbx, rbx
je 0x180142232
cmp r14, rbx
mov r9, rbx
cmovb r9, r14
mov rdx, qword [rdi + 8]
mov rax, qword [rdi + 0x10]
lea rcx, [rsp + 0x40]
mov r8, r15
call qword [rax + 0x18]
cmp qword [rsp + 0x40], 0
mov rax, qword [rsp + 0x48]
mov ecx, 1
jne 0x180142236
sub rbx, rax
jb 0x180142965
mov qword [rdi + 0x18], rbx
xor ecx, ecx
jmp 0x180142236
mov rbx, qword [rdi + 0x18]
test rbx, rbx
je 0x180142225
cmp r14, rbx
cmovae r14, rbx
mov rdx, qword [rdi + 8]
mov rax, qword [rdi + 0x10]
lea rcx, [rsp + 0x40]
mov r8, r15
mov r9, r14
call qword [rax + 0x18]
cmp qword [rsp + 0x40], 0
mov rax, qword [rsp + 0x48]
je 0x1801422cd
mov qword [rsi + 8], rax
jmp 0x1801426a8
mov rbx, qword [rdi + 0x30]
test rbx, rbx
je 0x180142225
mov r12, qword [rdi + 0x18]
test r12, r12
je 0x1801422ea
cmp rbx, r14
mov r9, r14
cmovb r9, rbx
cmp r9, r12
cmovae r9, r12
mov rdx, qword [rdi + 8]
mov rax, qword [rdi + 0x10]
lea rcx, [rsp + 0x40]
mov r8, r15
call qword [rax + 0x18]
cmp qword [rsp + 0x40], 0
mov r13, qword [rsp + 0x48]
je 0x1801422ef
mov qword [rsi + 8], r13
jmp 0x1801426a8
pxor xmm0, xmm0
movdqu xmmword [rsi], xmm0
jmp 0x1801426af
xor ecx, ecx
xor eax, eax
test r14, r14
je 0x1801422c1
mov r8d, dword [rdi + 0x28]
mov edx, dword [rdi + 0x20]
mov r9d, dword [rdi + 0x24]
xor r10d, r10d
lea r11, [0x1802031c0]
nop word cs:[rax + rax]
mov ebp, r8d
or ebp, 3
mov ebx, ebp
and ebx, 0xfffffffe
imul ebx, ebp
shr ebx, 8
xor bl, byte [r15 + r10]
mov ebp, edx
xor bpl, bl
movzx r12d, bpl
shr edx, 8
xor edx, dword [r11 + r12*4]
movzx ebp, dl
add ebp, r9d
imul r9d, ebp, 0x8088405
inc r9d
mov ebp, r9d
shr ebp, 0x18
movzx r12d, r8b
xor r12d, ebp
shr r8d, 8
xor r8d, dword [r11 + r12*4]
mov byte [r15 + r10], bl
inc r10
cmp r14, r10
jne 0x180142260
mov dword [rdi + 0x28], r8d
mov dword [rdi + 0x20], edx
mov dword [rdi + 0x24], r9d
mov qword [rsi], rcx
mov qword [rsi + 8], rax
jmp 0x1801426af
sub rbx, rax
jb 0x180142965
mov qword [rdi + 0x18], rbx
mov qword [rsi + 8], rax
mov qword [rsi], 0
jmp 0x1801426af
xor r13d, r13d
jmp 0x18014230c
sub r12, r13
jb 0x180142965
mov qword [rdi + 0x18], r12
sub rbx, r13
mov qword [rdi + 0x30], rbx
cmp r13, r14
ja 0x180142965
lea rcx, [rdi + 0x98]
movzx r12d, byte [rdi + 0xd8]
mov eax, 0x40
sub rax, r12
mov rbx, r13
sub rbx, rax
mov rdx, rcx
mov qword [rsp + 0x28], rcx
jae 0x180142349
add rcx, r12
mov rdx, r15
mov r8, r13
call fcn.180170ea0
add r12, r13
jmp 0x1801423ca
mov r14, r13
mov r8, r13
mov r13, r15
test r12, r12
je 0x18014238c
lea r13, [r15 + rax]
add r12, rcx
mov rcx, r12
mov rdx, r15
mov r8, rax
call fcn.180170ea0
inc qword [rdi + 0x38]
lea rcx, [rdi + 0x40]
mov r8d, 1
mov rdx, qword [rsp + 0x28]
call fcn.1800f7a30
mov rcx, qword [rsp + 0x28]
mov r8, rbx
mov rbp, r8
and rbp, 0xffffffffffffffc0
mov r12d, r8d
and r12d, 0x3f
add rbp, r13
cmp r8, 0x40
jb 0x1801423bc
shr r8, 6
add qword [rdi + 0x38], r8
lea rcx, [rdi + 0x40]
mov rdx, r13
call fcn.1800f7a30
mov rcx, qword [rsp + 0x28]
mov rdx, rbp
mov r8, r12
call fcn.180170ea0
mov r13, r14
mov byte [rdi + 0xd8], r12b
mov rcx, qword [rdi + 0x20]
mov rax, qword [rdi + 0x28]
mov rdx, r15
mov r8, r13
call qword [rax + 0x18]
cmp qword [rdi + 0x30], 0
je 0x1801423f9
mov qword [rsi + 8], r13
mov qword [rsi], 0
jmp 0x1801426af
mov qword [rsp + 0xa0], r13
cmp byte [rdi + 0xe0], 0
jne 0x180142965
mov byte [rdi + 0xe0], 1
mov word [rsp + 0x38], 0
mov qword [rsp + 0x30], 0
mov r15, qword [rdi + 8]
mov rax, qword [rdi + 0x10]
mov qword [rsp + 0xa8], rax
mov r13, qword [rdi + 0x18]
mov ebx, 0xa
lea r12, [rsp + 0x30]
jmp 0x180142479
mov rcx, qword [0x180219958]
xor edx, edx
call qword [sym.imp.KERNEL32.dll_HeapFree]
mov rcx, qword [0x180219958]
xor edx, edx
mov r8, rbp
call qword [sym.imp.KERNEL32.dll_HeapFree]
nop word cs:[rax + rax]
test rbx, rbx
je 0x180142694
test r13, r13
je 0x18014268b
cmp rbx, r13
mov r9, r13
cmovb r9, rbx
lea rcx, [rsp + 0x40]
mov rdx, r15
mov r8, r12
mov rax, qword [rsp + 0xa8]
call qword [rax + 0x18]
cmp qword [rsp + 0x40], 0
mov r14, qword [rsp + 0x48]
je case.default.0x1801424c3
mov ebp, r14d
and ebp, 3
lea rcx, [0x18014298c]
movsxd rax, dword [rcx + rbp*4]
add rax, rcx
jmp rax
movzx eax, byte [r14 + 0x10]
jmp 0x180142503
sub r13, r14
jb 0x180142965
mov qword [rdi + 0x18], r13
test r14, r14
je 0x18014268b
sub rbx, r14
jb 0x180142965
add r12, r14
jmp 0x180142470
cmp al, 0x23
jne 0x180142697
lea rax, [rbp - 2]
cmp rax, 2
jb 0x180142470
test rbp, rbp
je 0x180142470
lea rbp, [r14 - 1]
mov rcx, qword [r14 - 1]
mov rax, qword [r14 + 7]
call qword [rax]
mov rax, qword [r14 + 7]
cmp qword [rax + 8], 0
je 0x180142454
mov r8, qword [r14 - 1]
cmp qword [rax + 0x10], 0x11
jb 0x180142445
mov r8, qword [r8 - 8]
jmp 0x180142445
lea r14, str.failed_to_fill_whole_buffer
jmp 0x180142697
xor r14d, r14d
test r14, r14
mov r13, qword [rsp + 0xa0]
je 0x1801426cb
mov qword [rsi + 8], r14
mov qword [rsi], 1
movaps xmm6, xmmword [rsp + 0xd0]
add rsp, 0xe8
pop rbx
pop rbp
pop rdi
pop rsi
pop r12
pop r13
pop r14
pop r15
ret
movzx r15d, byte [rdi + 0xd8]
mov rax, qword [rdi + 0x38]
shl rax, 9
lea r14, [r15*8]
or r14, rax
mov eax, dword [rdi + 0x50]
mov dword [rsp + 0x90], eax
movups xmm0, xmmword [rdi + 0x40]
movaps xmmword [rsp + 0x80], xmm0
mov byte [rdi + r15 + 0x98], 0x80
mov r8, r15
xor r8, 0x3f
je 0x180142721
mov rax, qword [rsp + 0x28]
lea rcx, [r15 + rax]
inc rcx
xor edx, edx
call fcn.180171550
lea rbx, [rdi + 0x40]
bswap r14
xor r15d, 0x38
cmp r15d, 8
jae 0x180142780
lea r15, [rsp + 0x80]
mov r8d, 1
mov rcx, r15
mov r12, qword [rsp + 0x28]
mov rdx, r12
call fcn.1800f7a30
xorps xmm0, xmm0
movaps xmmword [rsp + 0x60], xmm0
movaps xmmword [rsp + 0x50], xmm0
movaps xmmword [rsp + 0x40], xmm0
mov qword [rsp + 0x70], 0
mov qword [rsp + 0x78], r14
lea rdx, [rsp + 0x40]
mov r8d, 1
mov rcx, r15
jmp 0x18014279d
mov qword [rdi + 0xd0], r14
lea rcx, [rsp + 0x80]
mov r8d, 1
mov r12, qword [rsp + 0x28]
mov rdx, r12
call fcn.1800f7a30
mov eax, dword [rsp + 0x90]
bswap eax
movdqa xmm0, xmmword [rsp + 0x80]
pxor xmm6, xmm6
movdqa xmm1, xmm0
punpckhbw xmm1, xmm6
pshuflw xmm1, xmm1, 0x1b
pshufhw xmm1, xmm1, 0x1b
punpcklbw xmm0, xmm6
pshuflw xmm0, xmm0, 0x1b
pshufhw xmm0, xmm0, 0x1b
packuswb xmm0, xmm1
mov ecx, dword [rdi + 0x70]
mov dword [rsp + 0x50], ecx
movups xmm1, xmmword [rdi + 0x60]
movaps xmmword [rsp + 0x40], xmm1
mov rcx, qword [rdi + 0x58]
movdqu xmmword [rdi + 0x98], xmm0
mov dword [rdi + 0xa8], eax
mov byte [rdi + 0xd8], 0x14
shl rcx, 9
or rcx, 0xa0
bswap rcx
mov byte [rdi + 0xac], 0x80
movdqu xmmword [rdi + 0xad], xmm6
movdqu xmmword [rdi + 0xbd], xmm6
mov dword [rdi + 0xcc], 0
mov qword [rdi + 0xd0], rcx
lea rcx, [rsp + 0x40]
mov r8d, 1
mov rdx, r12
call fcn.1800f7a30
mov eax, dword [rsp + 0x50]
bswap eax
movdqa xmm0, xmmword [rsp + 0x40]
movdqa xmm1, xmm0
punpckhbw xmm1, xmm6
pshuflw xmm1, xmm1, 0x1b
pshufhw xmm1, xmm1, 0x1b
punpcklbw xmm0, xmm6
pshuflw xmm0, xmm0, 0x1b
pshufhw xmm0, xmm0, 0x1b
packuswb xmm0, xmm1
mov ecx, dword [rdi + 0x90]
mov dword [rbx + 0x10], ecx
movups xmm1, xmmword [rdi + 0x80]
movups xmmword [rbx], xmm1
mov rcx, qword [rdi + 0x78]
mov qword [rdi + 0x38], rcx
mov byte [rdi + 0xd8], 0
movdqa xmmword [rsp + 0xb0], xmm0
mov dword [rsp + 0xc0], eax
lea rcx, [rsp + 0xb0]
lea rdx, [rsp + 0x30]
call fcn.1800222a0
test al, al
je 0x1801423e9
mov ecx, 0x5b
mov edx, 1
call fcn.18001d7b0
test rax, rax
je 0x180142969
mov rdi, rax
movups xmm0, xmmword [0x180203003]
movups xmmword [rax + 0x4b], xmm0
movups xmm0, xmmword [0x180202ff8]
movups xmmword [rax + 0x40], xmm0
movups xmm0, xmmword [0x180202fe8]
movups xmmword [rax + 0x30], xmm0
movups xmm0, xmmword [0x180202fd8]
movups xmmword [rax + 0x20], xmm0
movups xmm0, xmmword [0x180202fc8]
movups xmmword [rax + 0x10], xmm0
movdqu xmm0, xmmword [0x180202fb8]
movdqu xmmword [rax], xmm0
mov ecx, 0x18
mov edx, 8
call fcn.18001d7b0
test rax, rax
je 0x18014297a
mov qword [rax], rdi
mov qword [rax + 8], 0x5b
mov qword [rax + 0x10], 0x5b
lea r8, fcn.18007ad00
mov cl, 0x15
mov rdx, rax
call fcn.1801032f0
jmp 0x1801421c8
ud2
mov ecx, 1
mov edx, 0x5b
call fcn.18017ea70
ud2
mov ecx, 8
mov edx, 0x18
call fcn.18017ea70
ud2