Function at 0x140008548
Capabilities:
Check os version
Get system information on windows
Print debug messages

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 - 0x11a8]
mov eax, 0x1280
call fcn.1400212c0
sub rsp, rax
mov rax, qword [0x140030010]
xor rax, rsp
mov qword [rbp + 0x1170], rax
mov rsi, rcx
mov ebx, 0x9c
mov r8d, ebx
lea rcx, [rbp + 0x770]
xor edx, edx
mov dil, 1
xor r14b, r14b
call fcn.14000aca0
lea rcx, [rbp + 0x770]
mov dword [rbp + 0x770], ebx
call qword [sym.imp.KERNEL32.dll_GetVersionExA]
test eax, eax
jne 0x1400085da
lea rcx, [rbp + 0x770]
mov dword [rbp + 0x770], 0x94
call qword [sym.imp.KERNEL32.dll_GetVersionExA]
test eax, eax
je 0x140008bec
mov eax, dword [rbp + 0x780]
test eax, eax
je 0x140008608
sub eax, 1
je 0x140008608
cmp eax, 1
jne 0x14000860b
mov eax, dword [rbp + 0x774]
cmp eax, 6
jae 0x14000860b
cmp eax, 5
jne 0x140008603
mov r14b, dil
jmp 0x14000860b
cmp eax, 4
ja 0x14000860b
xor dil, dil
xor edx, edx
lea rcx, [rsp + 0x40]
lea r8d, [rdx + 0x30]
call fcn.14000aca0
lea rcx, [rsp + 0x40]
call qword [sym.imp.KERNEL32.dll_GetNativeSystemInfo]
test dil, dil
je 0x140008bec
lea r15, [rsi + 0x62]
mov r8, r15
call fcn.1400050d4
test al, al
je 0x140008bec
cmp byte [rsi + 0x470], 0
je 0x140008779
mov edi, 0x400
lea rcx, [rbp + 0x770]
mov r8d, edi
xor edx, edx
call fcn.14000aca0
mov r8d, edi
lea rcx, [rbp + 0xd70]
xor edx, edx
call fcn.14000aca0
mov rcx, qword [0x140033038]
test rcx, rcx
je 0x140008694
lea rdx, str.domain
call fcn.140004be0
test rax, rax
jne 0x14000869b
lea rax, str.https:__zoom.us
mov r8, rax
lea rcx, [rbp + 0x770]
mov rdx, rdi
call fcn.14000e7f8
lea r8, str._upgrade_oswin
mov rdx, rdi
lea rcx, [rbp + 0x770]
call fcn.14000e858
mov rcx, qword [0x140033038]
test rcx, rcx
je 0x14000870c
lea rdx, str.client
call fcn.140004be0
mov r14, rax
test rax, rax
je 0x14000870c
lea rdx, str.winx64
mov rcx, rax
call fcn.1400148c4
test eax, eax
je 0x14000870c
lea rbx, str.arm64
mov rcx, r14
mov rdx, rbx
call fcn.1400148c4
test eax, eax
je 0x140008713
lea rbx, [0x14002b930]
mov r8, rbx
lea rcx, [rbp + 0x770]
mov rdx, rdi
call fcn.14000e858
mov r8, r15
lea rcx, [rbp + 0xd70]
mov rdx, rdi
call fcn.14000e7f8
lea r8, str._upgrade_response
mov rdx, rdi
lea rcx, [rbp + 0xd70]
call fcn.14000e858
lea rcx, [rsi + 0x48]
mov dword [rsp + 0x20], 1
mov r9d, 0xc3800
lea r8, [rbp + 0xd70]
lea rdx, [rbp + 0x770]
call fcn.1400072d4
mov al, 1
jmp 0x140008bee
mov rcx, qword [0x140033038]
test rcx, rcx
je 0x14000879d
lea rdx, str.downloadRoot
call fcn.140004be0
mov rcx, qword [0x140033038]
mov rbx, rax
jmp 0x14000879f
xor ebx, ebx
test rcx, rcx
je 0x1400087bc
lea rdx, str.package.version
call fcn.140004be0
mov rcx, qword [0x140033038]
mov rdi, rax
jmp 0x1400087be
xor edi, edi
mov qword [rsp + 0x30], rdi
test rcx, rcx
je 0x1400087e0
lea rdx, str.installer.exe
call fcn.140004be0
mov rcx, qword [0x140033038]
mov r12, rax
jmp 0x1400087e3
xor r12d, r12d
mov qword [rsp + 0x38], r12
test rcx, rcx
je 0x1400087fe
lea rdx, str.package.name
call fcn.140004be0
mov r13, rax
jmp 0x140008801
xor r13d, r13d
test rbx, rbx
je 0x140008bec
test rdi, rdi
je 0x140008bec
test r12, r12
je 0x140008bec
test r13, r13
je 0x140008bec
xor edx, edx
lea rcx, [rbp + 0xb70]
mov r8d, 0x200
call fcn.14000aca0
movzx r8d, r14b
lea rdx, str._CZpDownloadMgr::PrepareDownloadFileList__isxp:__d
lea rcx, [rbp + 0xb70]
call fcn.1400091d4
lea rcx, [rbp + 0xb70]
call qword [sym.imp.KERNEL32.dll_OutputDebugStringA]
call fcn.140008c20
mov edi, 0x400
test al, al
je 0x140008900
mov r8d, edi
mov byte [rsi + 0x60], 1
xor edx, edx
lea rcx, [rsp + 0x70]
call fcn.14000aca0
mov r8d, edi
lea rcx, [rbp + 0x370]
xor edx, edx
call fcn.14000aca0
mov r8, rbx
lea rcx, [rsp + 0x70]
mov edx, edi
call fcn.14000e7f8
lea r8, str._vcredist_x86.exe
mov edx, edi
lea rcx, [rsp + 0x70]
call fcn.14000e858
mov r8, r15
lea rcx, [rbp + 0x370]
mov edx, edi
call fcn.14000e7f8
lea r8, str._vcredist_x86.exe
mov edx, edi
lea rcx, [rbp + 0x370]
call fcn.14000e858
and dword [rsp + 0x20], 0
lea r12, [rsi + 0x48]
mov rcx, r12
lea r8, [rbp + 0x370]
mov r9d, 0x1b2538
lea rdx, [rsp + 0x70]
call fcn.1400072d4
jmp 0x140008904
lea r12, [rsi + 0x48]
test r14b, r14b
je 0x14000899c
mov r8, rdi
mov byte [rsi + 0x61], 1
xor edx, edx
lea rcx, [rsp + 0x70]
call fcn.14000aca0
mov r8, rdi
lea rcx, [rbp + 0x370]
xor edx, edx
call fcn.14000aca0
mov r8, rbx
lea rcx, [rsp + 0x70]
mov rdx, rdi
call fcn.14000e7f8
lea r8, str._winhttp.dll
mov rdx, rdi
lea rcx, [rsp + 0x70]
call fcn.14000e858
mov r8, r15
lea rcx, [rbp + 0x370]
mov rdx, rdi
call fcn.14000e7f8
lea r8, str._winhttp.dll
mov rdx, rdi
lea rcx, [rbp + 0x370]
call fcn.14000e858
and dword [rsp + 0x20], 0
lea r8, [rbp + 0x370]
mov r9d, 0x61a80
lea rdx, [rsp + 0x70]
mov rcx, r12
call fcn.1400072d4
mov r8, rdi
lea rcx, [rsp + 0x70]
xor edx, edx
call fcn.14000aca0
mov r8, rdi
lea rcx, [rbp + 0x370]
xor edx, edx
call fcn.14000aca0
mov r8, rbx
lea rcx, [rsp + 0x70]
mov rdx, rdi
call fcn.14000e7f8
lea r14, [0x14002ae4c]
mov rdx, rdi
mov r8, r14
lea rcx, [rsp + 0x70]
call fcn.14000e858
mov r8, qword [rsp + 0x30]
lea rcx, [rsp + 0x70]
mov rdx, rdi
call fcn.14000e858
mov r8, r14
lea rcx, [rsp + 0x70]
mov rdx, rdi
call fcn.14000e858
mov r8, qword [rsp + 0x38]
lea rcx, [rsp + 0x70]
mov rdx, rdi
call fcn.14000e858
lea r8, str._archTypex64
mov rdx, rdi
lea rcx, [rsp + 0x70]
call fcn.14000e858
mov r8, r15
lea rcx, [rbp + 0x370]
mov rdx, rdi
call fcn.14000e7f8
lea r8, str._Installer.exe
mov rdx, rdi
lea rcx, [rbp + 0x370]
call fcn.14000e858
and dword [rsp + 0x20], 0
lea r8, [rbp + 0x370]
mov r9d, 0xc3800
lea rdx, [rsp + 0x70]
mov rcx, r12
call fcn.1400072d4
mov r8, rdi
lea rcx, [rsp + 0x70]
xor edx, edx
call fcn.14000aca0
mov r8, rdi
lea rcx, [rbp + 0x370]
xor edx, edx
call fcn.14000aca0
mov r8, rbx
lea rcx, [rsp + 0x70]
mov rdx, rdi
call fcn.14000e7f8
mov r8, r14
lea rcx, [rsp + 0x70]
mov rdx, rdi
call fcn.14000e858
mov r8, qword [rsp + 0x30]
lea rcx, [rsp + 0x70]
mov rdx, rdi
call fcn.14000e858
mov r8, r14
lea rcx, [rsp + 0x70]
mov rdx, rdi
call fcn.14000e858
mov r8, r13
lea rcx, [rsp + 0x70]
mov rdx, rdi
call fcn.14000e858
lea r8, str._archTypex64
mov rdx, rdi
lea rcx, [rsp + 0x70]
call fcn.14000e858
mov r8, r15
mov rdx, rdi
lea rcx, [rbp + 0x370]
call fcn.14000e7f8
mov r8, r14
lea rcx, [rbp + 0x370]
mov rdx, rdi
call fcn.14000e858
lea r8, str.Zoom.msi
mov rdx, rdi
lea rcx, [rbp + 0x370]
call fcn.14000e858
mov rcx, qword [0x140033038]
test rcx, rcx
je 0x140008bca
lea rdx, str.package.size
call fcn.140004be0
mov r13, rax
mov r14d, 0x58aa00
test rax, rax
je 0x140008bd0
mov edx, 0x10000
mov rcx, rax
call fcn.14000e14c
movsxd rbx, eax
mov rsi, rax
add rbx, 5
mov rcx, rbx
call fcn.140009584
mov r15, rax
mov rdi, rax
xor eax, eax
mov rcx, rbx
rep stosb byte [rdi], al
mov rcx, r15
mov r8, r13
mov rdx, rbx
call fcn.14000e7f8
movsxd rax, esi
mov cl, byte [rax + r15 - 1]
sub cl, 0x4b
test cl, 0xdf
jne 0x140008bac
mov byte [rax + r15 - 1], 0
xor edx, edx
mov rcx, r15
lea r8d, [rdx + 0xa]
call fcn.140012a04
cmp eax, 0xbb8
jle 0x140008bd0
mov r14d, eax
shl r14d, 0xa
jmp 0x140008bd0
mov r14d, 0x58aa00
and dword [rsp + 0x20], 0
lea r8, [rbp + 0x370]
mov r9d, r14d
lea rdx, [rsp + 0x70]
mov rcx, r12
jmp 0x14000876d
xor al, al
mov rcx, qword [rbp + 0x1170]
xor rcx, rsp
call fcn.140009240
lea r11, [rsp + 0x1280]
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