Function at 0x10013370
Capabilities:
Check if file exists
Get file attributes
Query environment variable

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x1002df9b
mov eax, dword fs:[0]
push eax
mov eax, 0x2654
call fcn.1002ba50
mov eax, dword [0x10041008]
xor eax, ebp
mov dword [ebp - 0x10], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov esi, ecx
push 0x2000
lea eax, [ebp - 0x2218]
mov dword [ebp - 0x263c], 0
push 0
push eax
call sub.VCRUNTIME140.dll_memset
add esp, 0xc
mov eax, 0x22
mov word [ebp - 0x2218], ax
test esi, esi
je 0x1001361f
mov edi, dword [sym.imp.KERNEL32.dll_lstrlenW]
push esi
call edi
cmp eax, 1
jl 0x1001361f
push esi
call edi
cmp eax, 0xffa
jge 0x1001361f
push esi
mov esi, dword [sym.imp.KERNEL32.dll_lstrcatW]
lea eax, [ebp - 0x2218]
push eax
call esi
push 0x100367b0
lea eax, [ebp - 0x2218]
push eax
call esi
push 0xb
xor eax, eax
mov dword [ebp - 0x2644], 0
mov dword [ebp - 0x2640], 0
lea ecx, [ebp - 0x2654]
push str.Shell32.dll
mov dword [ebp - 0x2644], 0
mov dword [ebp - 0x2640], 7
mov word [ebp - 0x2654], ax
call fcn.10002920
mov dword [ebp - 4], 0
lea eax, [ebp - 0x2654]
push eax
call fcn.10021ab0
mov ecx, eax
call fcn.10021b70
mov esi, eax
mov dword [ebp - 4], 0xffffffff
mov edx, dword [ebp - 0x2640]
cmp edx, 8
jb 0x100134be
mov ecx, dword [ebp - 0x2654]
lea edx, [edx*2 + 2]
mov eax, ecx
cmp edx, 0x1000
jb 0x100134b4
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
jbe 0x100134b4
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
push edx
push ecx
call fcn.1002a5aa
add esp, 8
xor eax, eax
mov dword [ebp - 0x2644], 0
mov dword [ebp - 0x2640], 7
mov word [ebp - 0x2654], ax
test esi, esi
je 0x1001361f
push str.ShellExecuteW
push esi
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov ebx, eax
test ebx, ebx
je 0x1001361f
lea ecx, [ebp - 0x2638]
call fcn.10012ef0
xor edi, edi
lea esi, [ebp - 0x2638]
nop dword [eax]
cmp word [esi], 0
je 0x10013530
push 1
push 0
lea eax, [ebp - 0x2218]
push eax
push esi
push str.open
push 0
call ebx
cmp eax, 0x20
ja 0x1001353e
inc edi
add esi, 0x210
cmp edi, 2
jl 0x10013510
jmp 0x10013566
imul eax, edi, 0x210
cmp dword [ebp + eax - 0x2430], 0
mov eax, dword [ebp + eax - 0x242c]
jne 0x10013558
add eax, 0x10
mov dword [ebp - 0x263c], eax
test eax, eax
jne 0x10013621
push 1
push 0
push 0
lea eax, [ebp - 0x2218]
push eax
push str.open
push 0
call ebx
cmp eax, 0x20
jbe 0x1001358b
mov eax, 0x10
jmp 0x10013621
mov edi, dword [sym.imp.KERNEL32.dll_ExpandEnvironmentStringsW]
xor esi, esi
mov dword [ebp - 0x265c], str._programfiles_x86__Internet_Exploreriexplore.exe
mov dword [ebp - 0x2658], 0x10036830
nop word [eax + eax]
push 0x208
lea eax, [ebp - 0x218]
push 0
push eax
call sub.VCRUNTIME140.dll_memset
add esp, 0xc
lea eax, [ebp - 0x218]
push 0x103
push eax
push dword [ebp + esi*4 - 0x265c]
call edi
lea eax, [ebp - 0x218]
push eax
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
cmp eax, 0xffffffff
je 0x10013611
push 1
push 0
lea eax, [ebp - 0x2218]
push eax
lea eax, [ebp - 0x218]
push eax
push str.open
push 0
call ebx
cmp eax, 0x20
ja 0x10013581
inc esi
cmp esi, 2
jb 0x100135b0
mov eax, dword [ebp - 0x263c]
jmp 0x10013621
xor eax, eax
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.1002a569
mov esp, ebp
pop ebp
ret