Function at 0x140020860
Capabilities:
Get system information on windows
Make suspicious ntquerysysteminformation call
Parse pe header
Query environment variable
Resolve function by parsing pe exports

Disassembly:
mov rax, rsp
mov qword [rax + 0x10], rbx
mov qword [rax + 0x18], rsi
mov qword [rax + 0x20], rdi
push rbp
push r12
push r13
push r14
push r15
lea rbp, [rax - 0x5f]
sub rsp, 0xb0
mov rax, qword [0x14010a080]
xor rax, rsp
mov qword [rbp + 0x27], rax
mov r13, rdx
mov rbx, rcx
mov qword [rbp - 0x41], rcx
xor r14d, r14d
mov edi, r14d
mov dword [rbp - 0x49], r14d
lea r9, [rbp - 0x49]
xor r8d, r8d
xor edx, edx
lea esi, [rdx + 0xb]
mov ecx, esi
call qword [sym.imp.ntdll.dll_NtQuerySystemInformation]
mov r15d, 0xc0000004
jmp 0x1400208fd
xor edx, edx
mov r8d, 0x8000
mov rcx, rdi
call qword [sym.imp.KERNEL32.dll_VirtualFree]
mov edx, dword [rbp - 0x49]
xor ecx, ecx
lea r9d, [rcx + 4]
mov r8d, 0x3000
call qword [sym.imp.KERNEL32.dll_VirtualAlloc]
mov rdi, rax
lea r9, [rbp - 0x49]
mov r8d, dword [rbp - 0x49]
mov rdx, rax
mov ecx, esi
call qword [sym.imp.ntdll.dll_NtQuerySystemInformation]
cmp eax, r15d
je 0x1400208c1
test eax, eax
js 0x140020be7
mov r15d, r14d
cmp dword [rdi], r14d
jbe 0x140020be7
mov eax, r15d
imul r12, rax, 0x128
movzx edx, word [r12 + rdi + 0x2e]
add rdx, 0x30
add rdx, r12
add rdx, rdi
xorps xmm0, xmm0
movups xmmword [rbp - 0x19], xmm0
mov qword [rbp - 9], r14
mov qword [rbp - 1], r14
or r8, 0xffffffffffffffff
inc r8
cmp byte [rdx + r8], r14b
jne 0x140020943
lea rcx, [rbp - 0x19]
call fcn.14000bfa0
nop
lea rcx, [rbp - 0x19]
cmp qword [rbp - 1], 0xf
cmova rcx, qword [rbp - 0x19]
mov rdx, rbx
call qword [sym.imp.api_ms_win_crt_string_l1_1_0.dll__stricmp]
test eax, eax
jne 0x140020ba0
lea rdx, [rdi + 0x30]
add rdx, r12
xorps xmm0, xmm0
movups xmmword [rbp - 0x39], xmm0
mov qword [rbp - 0x29], r14
mov qword [rbp - 0x21], r14
or r8, 0xffffffffffffffff
inc r8
cmp byte [rdx + r8], r14b
jne 0x14002098f
lea rcx, [rbp - 0x39]
call fcn.14000bfa0
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 + 7], xmm0
mov qword [rbp + 0x17], r14
mov qword [rbp + 0x1f], r14
or r8, 0xffffffffffffffff
inc r8
cmp byte [rax + r8], r14b
jne 0x1400209c2
mov rdx, rax
lea rcx, [rbp + 7]
call fcn.14000bfa0
nop
mov r8d, 1
lea rdx, [0x1400ec754]
lea rcx, [rbp + 7]
call fcn.140008630
mov rbx, rax
lea rsi, [rbp - 0x39]
cmp qword [rbp - 0x21], 0xf
cmova rsi, qword [rbp - 0x39]
mov rax, qword [rbp - 0x29]
cmp rax, 0xc
jb 0x140020a5b
lea r14, [rax + rsi]
lea r8, [r14 - 0xb]
sub r8, rsi
mov rcx, rsi
jmp 0x140020a3e
movabs rcx, 0x526d65747379535c
cmp qword [rax], rcx
jne 0x140020a31
cmp dword [rax + 8], 0x5c746f6f
je 0x140020a56
inc rax
lea r8, [r14 - 0xb]
sub r8, rax
mov rcx, rax
mov edx, 0x5c
call sub.VCRUNTIME140.dll_memchr
test rax, rax
jne 0x140020a19
or rax, 0xffffffffffffffff
xor r14d, r14d
jmp 0x140020a5f
sub rax, rsi
jmp 0x140020a51
or rax, 0xffffffffffffffff
mov rcx, qword [rbx + 0x10]
cmp qword [rbx + 0x18], 0xf
jbe 0x140020a6d
mov rbx, qword [rbx]
mov qword [rsp + 0x20], rcx
mov r9, rbx
mov rdx, rax
lea rcx, [rbp - 0x39]
call fcn.14001da10
nop
mov rdx, qword [rbp + 0x1f]
cmp rdx, 0xf
jbe 0x140020abd
inc rdx
mov rcx, qword [rbp + 7]
mov rax, rcx
cmp rdx, 0x1000
jb 0x140020ab8
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
ja 0x140020c27
call fcn.1400d0014
lea rcx, [rbp - 0x39]
cmp qword [rbp - 0x21], 0xf
cmova rcx, qword [rbp - 0x39]
xor edx, edx
lea r8d, [rdx + 1]
call qword [sym.imp.KERNEL32.dll_LoadLibraryExA]
mov rdx, rax
mov eax, 0x5a4d
cmp word [rdx], ax
jne 0x140020c54
movsxd rcx, dword [rdx + 0x3c]
cmp dword [rcx + rdx], 0x4550
jne 0x140020c54
mov eax, dword [rcx + rdx + 0x88]
test eax, eax
je 0x140020c54
mov ebx, dword [rax + rdx + 0x1c]
lea rsi, [rdx + rbx]
mov r9d, dword [rax + rdx + 0x20]
add r9, rdx
mov r14d, dword [rax + rdx + 0x24]
add r14, rdx
xor r8d, r8d
test ebx, ebx
je 0x140020b5e
mov ecx, dword [r9]
add rcx, rdx
mov rax, r13
sub rcx, r13
movzx r11d, byte [rax]
movzx r10d, byte [rax + rcx]
sub r11d, r10d
jne 0x140020b49
inc rax
test r10d, r10d
jne 0x140020b33
test r11d, r11d
je 0x140020c2e
inc r8d
add r9, 4
cmp r8d, ebx
jb 0x140020b27
mov rdx, qword [rbp - 0x21]
cmp rdx, 0xf
jbe 0x140020b99
inc rdx
mov rcx, qword [rbp - 0x39]
mov rax, rcx
cmp rdx, 0x1000
jb 0x140020b94
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
ja 0x140020c89
call fcn.1400d0014
xor r14d, r14d
mov rbx, qword [rbp - 0x41]
mov rdx, qword [rbp - 1]
cmp rdx, 0xf
jbe 0x140020bdb
inc rdx
mov rcx, qword [rbp - 0x19]
mov rax, rcx
cmp rdx, 0x1000
jb 0x140020bd6
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
ja 0x140020ceb
call fcn.1400d0014
inc r15d
cmp r15d, dword [rdi]
jb 0x140020916
xor edx, edx
mov r8d, 0x8000
mov rcx, rdi
call qword [sym.imp.KERNEL32.dll_VirtualFree]
xor eax, eax
mov rcx, qword [rbp + 0x27]
xor rcx, rsp
call fcn.1400cfd70
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
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
nop
movsxd rax, r8d
movzx ecx, word [r14 + rax*2]
mov ebx, dword [rsi + rcx*4]
add rbx, qword [r12 + rdi + 0x18]
xor edx, edx
mov r8d, 0x8000
mov rcx, rdi
call qword [sym.imp.KERNEL32.dll_VirtualFree]
xor r14d, r14d
jmp 0x140020c57
mov rbx, r14
mov rdx, qword [rbp - 0x21]
cmp rdx, 0xf
jbe 0x140020c95
inc rdx
mov rcx, qword [rbp - 0x39]
mov rax, rcx
cmp rdx, 0x1000
jb 0x140020c90
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
jbe 0x140020c90
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
int3
call fcn.1400d0014
mov qword [rbp - 0x29], r14
mov qword [rbp - 0x21], reloc.WS2_32.dll_ntohs
mov byte [rbp - 0x39], r14b
mov rdx, qword [rbp - 1]
cmp rdx, 0xf
jbe 0x140020ce3
inc rdx
mov rcx, qword [rbp - 0x19]
mov rax, rcx
cmp rdx, 0x1000
jb 0x140020cde
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
jbe 0x140020cde
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
int3
call fcn.1400d0014
mov rax, rbx
jmp 0x140020bfa
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
int3
mov rcx, qword [rdx]
mov rdx, qword [r8]
jmp 0x140020860