Function at 0x1400515b0
Capabilities:
Get system information on windows
Make suspicious ntquerysysteminformation call
Parse pe header
Query environment variable
Resolve function by parsing pe exports

Disassembly:
mov qword [rsp + 0x10], rbx
mov qword [rsp + 0x18], rsi
mov qword [rsp + 0x20], rdi
push rbp
push r12
push r13
push r14
push r15
lea rbp, [rsp - 0x37]
sub rsp, 0xb0
mov rax, qword [0x140074040]
xor rax, rsp
mov qword [rbp + 0x27], rax
mov r12, rdx
mov rbx, rcx
mov qword [rbp - 0x49], rcx
xor edi, edi
mov r14d, edi
mov dword [rbp - 0x21], edi
lea r9, [rbp - 0x21]
xor r8d, r8d
xor edx, edx
mov ecx, 0xb
call qword [sym.imp.ntdll.dll_NtQuerySystemInformation]
cmp eax, 0xc0000004
jne 0x140051658
nop
xor edx, edx
mov r8d, 0x8000
mov rcx, r14
call qword [sym.imp.KERNEL32.dll_VirtualFree]
mov edx, dword [rbp - 0x21]
xor ecx, ecx
mov r9d, 4
mov r8d, 0x3000
call qword [sym.imp.KERNEL32.dll_VirtualAlloc]
mov r14, rax
lea r9, [rbp - 0x21]
mov r8d, dword [rbp - 0x21]
mov rdx, rax
mov ecx, 0xb
call qword [sym.imp.ntdll.dll_NtQuerySystemInformation]
cmp eax, 0xc0000004
je 0x140051610
test eax, eax
js 0x14005196f
mov r15d, edi
cmp dword [r14], edi
jbe 0x14005196f
nop dword [rax]
mov eax, r15d
imul rcx, rax, 0x128
lea r13, [rcx + r14]
movzx edx, word [r13 + 0x2e]
add rdx, 0x30
add rdx, rcx
add rdx, r14
xorps xmm0, xmm0
movups xmmword [rbp + 7], xmm0
mov qword [rbp + 0x17], rdi
mov qword [rbp + 0x1f], rdi
mov r8, 0xffffffffffffffff
inc r8
cmp byte [rdx + r8], 0
jne 0x1400516a3
lea rcx, [rbp + 7]
call fcn.140042fc0
nop
lea rcx, [rbp + 7]
cmp qword [rbp + 0x1f], 0xf
cmova rcx, qword [rbp + 7]
mov rdx, rbx
call qword [sym.imp.api_ms_win_crt_string_l1_1_0.dll__stricmp]
test eax, eax
jne 0x140051928
lea rdx, [r13 + 0x30]
xorps xmm0, xmm0
movups xmmword [rbp - 0x19], xmm0
mov qword [rbp - 9], rdi
mov qword [rbp - 1], rdi
mov r8, 0xffffffffffffffff
inc r8
cmp byte [rdx + r8], 0
jne 0x1400516f0
lea rcx, [rbp - 0x19]
call fcn.140042fc0
nop
lea rcx, str.SYSTEMROOT
call qword [sym.imp.api_ms_win_crt_environment_l1_1_0.dll_getenv]
xorps xmm0, xmm0
movups xmmword [rbp - 0x41], xmm0
mov qword [rbp - 0x31], rdi
mov qword [rbp - 0x29], rdi
mov r8, 0xffffffffffffffff
nop word [rax + rax]
inc r8
cmp byte [rax + r8], 0
jne 0x140051730
mov rdx, rax
lea rcx, [rbp - 0x41]
call fcn.140042fc0
nop
mov r8d, 1
lea rdx, [0x14006a594]
lea rcx, [rbp - 0x41]
call fcn.140047850
mov rdi, rax
lea rsi, [rbp - 0x19]
cmp qword [rbp - 1], 0xf
cmova rsi, qword [rbp - 0x19]
mov rax, qword [rbp - 9]
cmp rax, 0xc
jb 0x1400517d8
lea rbx, [rax + rsi]
lea r8, [rbx - 0xb]
sub r8, rsi
mov edx, 0x5c
mov rcx, rsi
call sub.VCRUNTIME140.dll_memchr
test rax, rax
je 0x1400517d8
nop word [rax + rax]
movabs rcx, 0x526d65747379535c
cmp qword [rax], rcx
jne 0x1400517bc
cmp dword [rax + 8], 0x5c746f6f
je 0x1400519af
inc rax
lea r8, [rbx - 0xb]
sub r8, rax
mov edx, 0x5c
mov rcx, rax
call sub.VCRUNTIME140.dll_memchr
test rax, rax
jne 0x1400517a0
mov rax, 0xffffffffffffffff
mov rcx, qword [rdi + 0x10]
cmp qword [rdi + 0x18], 0xf
jbe 0x1400517ed
mov rdi, qword [rdi]
mov qword [rsp + 0x20], rcx
mov r9, rdi
mov rdx, rax
lea rcx, [rbp - 0x19]
call fcn.140052080
nop
mov rdx, qword [rbp - 0x29]
cmp rdx, 0xf
jbe 0x14005183d
inc rdx
mov rcx, qword [rbp - 0x41]
mov rax, rcx
cmp rdx, 0x1000
jb 0x140051838
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
ja 0x1400519b7
call fcn.140055000
lea rcx, [rbp - 0x19]
cmp qword [rbp - 1], 0xf
cmova rcx, qword [rbp - 0x19]
xor edx, edx
mov r8d, 1
call qword [sym.imp.KERNEL32.dll_LoadLibraryExA]
mov r11, rax
mov eax, 0x5a4d
cmp word [r11], ax
jne 0x1400519df
movsxd rcx, dword [r11 + 0x3c]
cmp dword [rcx + r11], 0x4550
jne 0x1400519df
mov edx, dword [rcx + r11 + 0x88]
test edx, edx
je 0x1400519df
mov ebx, dword [rdx + r11 + 0x1c]
lea rdi, [r11 + rbx]
mov r9d, dword [rdx + r11 + 0x20]
add r9, r11
mov esi, dword [rdx + r11 + 0x24]
add rsi, r11
xor r10d, r10d
test ebx, ebx
je 0x1400518e7
nop dword [rax]
mov r8d, dword [r9]
add r8, r11
mov rax, r12
sub r8, r12
nop dword [rax]
movzx edx, byte [rax]
movzx ecx, byte [rax + r8]
sub edx, ecx
jne 0x1400518d3
inc rax
test ecx, ecx
jne 0x1400518c0
test edx, edx
je 0x1400519be
inc r10d
add r9, 4
cmp r10d, ebx
jb 0x1400518b0
mov rdx, qword [rbp - 1]
cmp rdx, 0xf
jbe 0x140051922
inc rdx
mov rcx, qword [rbp - 0x19]
mov rax, rcx
cmp rdx, 0x1000
jb 0x14005191d
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
ja 0x140051a13
call fcn.140055000
xor edi, edi
mov rbx, qword [rbp - 0x49]
mov rdx, qword [rbp + 0x1f]
cmp rdx, 0xf
jbe 0x140051963
inc rdx
mov rcx, qword [rbp + 7]
mov rax, rcx
cmp rdx, 0x1000
jb 0x14005195e
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
ja 0x140051a79
call fcn.140055000
inc r15d
cmp r15d, dword [r14]
jb 0x140051670
xor edx, edx
mov r8d, 0x8000
mov rcx, r14
call qword [sym.imp.KERNEL32.dll_VirtualFree]
xor eax, eax
mov rcx, qword [rbp + 0x27]
xor rcx, rsp
call fcn.140054bb0
lea r11, [rsp + 0xb0]
mov rbx, qword [r11 + 0x38]
mov rsi, qword [r11 + 0x40]
mov rdi, qword [r11 + 0x48]
mov rsp, r11
pop r15
pop r14
pop r13
pop r12
pop rbp
ret
sub rax, rsi
jmp 0x1400517df
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
int3
movsxd rax, r10d
movzx ecx, word [rsi + rax*2]
mov ebx, dword [rdi + rcx*4]
add rbx, qword [r13 + 0x18]
xor edx, edx
mov r8d, 0x8000
mov rcx, r14
call qword [sym.imp.KERNEL32.dll_VirtualFree]
jmp 0x1400519e1
xor ebx, ebx
mov rdx, qword [rbp - 1]
cmp rdx, 0xf
jbe 0x140051a1f
inc rdx
mov rcx, qword [rbp - 0x19]
mov rax, rcx
cmp rdx, 0x1000
jb 0x140051a1a
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
jbe 0x140051a1a
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
int3
call fcn.140055000
mov qword [rbp - 9], 0
mov qword [rbp - 1], 0xf
mov byte [rbp - 0x19], 0
mov rdx, qword [rbp + 0x1f]
cmp rdx, 0xf
jbe 0x140051a71
inc rdx
mov rcx, qword [rbp + 7]
mov rax, rcx
cmp rdx, 0x1000
jb 0x140051a6c
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
jbe 0x140051a6c
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
int3
call fcn.140055000
mov rax, rbx
jmp 0x140051982
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
int3