Function at 0x438020
Capabilities:
Persist via app paths registry key
Query or enumerate registry value
Set registry value

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x4d1dab
mov eax, dword fs:[0]
push eax
sub esp, 0x2a0
mov eax, dword [0x50d108]
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 edi, dword [ebp + 8]
lea eax, [ebp - 0x2ac]
push eax
push 0xf003f
push 0
push str.SoftwareMicrosoftWindowsCurrentVersionApp_PathsMasterPDF_Installer.exe
push reloc.OLEAUT32.dll_SysReAllocString
mov esi, 0x80004005
mov dword [ebp - 0x2ac], 0
mov dword [ebp - 0x2a8], 0
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExW]
test eax, eax
jne 0x438299
push 0x208
push eax
lea eax, [ebp - 0x298]
push eax
call fcn.004a32f0
mov ebx, dword [sym.imp.ADVAPI32.dll_RegQueryValueExW]
lea eax, [ebp - 0x2a4]
add esp, 0xc
mov dword [ebp - 0x2a4], 0x208
push eax
lea eax, [ebp - 0x298]
push eax
lea eax, [ebp - 0x2a8]
push eax
push 0
push str.Path
push dword [ebp - 0x2ac]
call ebx
test eax, eax
jne 0x4380ee
lea edx, [ebp - 0x298]
mov ecx, edi
call fcn.004321c0
test al, al
je 0x43811e
mov edx, dword [edi]
mov ecx, edx
lea esi, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x4380f5
sub ecx, esi
sar ecx, 1
lea eax, [ecx + ecx]
push eax
push edx
push 1
push 0
push str.Path
push dword [ebp - 0x2ac]
call dword [sym.imp.ADVAPI32.dll_RegSetValueExW]
lea eax, [ebp - 0x2a4]
push eax
lea eax, [ebp - 0x298]
push eax
lea eax, [ebp - 0x2a8]
push eax
push 0
push str.PdfEngineModule
push dword [ebp - 0x2ac]
call ebx
push str.PdfServer.exe
lea ecx, [ebp - 0x2a0]
mov dword [ebp - 0x2a0], 0
mov esi, eax
call fcn.004043c0
mov dword [ebp - 4], 0
test esi, esi
jne 0x43817e
lea edx, [ebp - 0x298]
lea ecx, [ebp - 0x2a0]
call fcn.004321c0
test al, al
je 0x4381bd
mov eax, dword [ebp - 0x2a0]
mov edx, eax
lea esi, [edx + 2]
nop dword [eax]
mov cx, word [edx]
add edx, 2
test cx, cx
jne 0x438190
mov edi, dword [sym.imp.ADVAPI32.dll_RegSetValueExW]
sub edx, esi
sar edx, 1
lea ecx, [edx + edx]
push ecx
push eax
push 1
push 0
push str.PdfEngineModule
push dword [ebp - 0x2ac]
call edi
jmp 0x4381c3
mov edi, dword [sym.imp.ADVAPI32.dll_RegSetValueExW]
lea eax, [ebp - 0x2a4]
push eax
lea eax, [ebp - 0x298]
push eax
lea eax, [ebp - 0x2a8]
push eax
push 0
push str.PdfEngineName
push dword [ebp - 0x2ac]
call ebx
push str.masterPDF_Server
lea ecx, [ebp - 0x29c]
mov dword [ebp - 0x29c], 0
mov esi, eax
call fcn.004043c0
test esi, esi
jne 0x43821c
lea edx, [ebp - 0x298]
lea ecx, [ebp - 0x29c]
call fcn.004321c0
test al, al
je 0x43824c
mov eax, dword [ebp - 0x29c]
mov edx, eax
lea esi, [edx + 2]
mov cx, word [edx]
add edx, 2
test cx, cx
jne 0x438227
sub edx, esi
sar edx, 1
lea ecx, [edx + edx]
push ecx
push eax
push 1
push 0
push str.PdfEngineName
push dword [ebp - 0x2ac]
call edi
mov edx, dword [ebp - 0x29c]
or edi, 0xffffffff
xor esi, esi
add edx, 0xfffffff0
mov eax, edi
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x43826e
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
mov dword [ebp - 4], 0xffffffff
mov edx, dword [ebp - 0x2a0]
add edx, 0xfffffff0
lock xadd dword [edx + 0xc], edi
dec edi
test edi, edi
jg 0x4383a1
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
jmp 0x4383a1
push 0
lea eax, [ebp - 0x2ac]
push eax
push 0
push 0xf003f
push 0
push 0
push 0
push str.SoftwareMicrosoftWindowsCurrentVersionApp_PathsMasterPDF_Installer.exe
push reloc.OLEAUT32.dll_SysReAllocString
call dword [sym.imp.ADVAPI32.dll_RegCreateKeyExW]
test eax, eax
jne 0x4383a1
push 0x80
push eax
lea eax, [ebp - 0x90]
push eax
call fcn.004a32f0
push 0
call fcn.004b6f0c
push edx
push eax
lea eax, [ebp - 0x90]
push str._I64d
push eax
call dword [sym.imp.USER32.dll_wsprintfW]
lea ecx, [ebp - 0x90]
add esp, 0x20
lea edx, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x438300
mov esi, dword [sym.imp.ADVAPI32.dll_RegSetValueExW]
sub ecx, edx
sar ecx, 1
lea eax, [ecx + ecx]
push eax
lea eax, [ebp - 0x90]
push eax
push 1
push 0
push str.Date
push dword [ebp - 0x2ac]
call esi
mov edx, dword [edi]
mov ecx, edx
lea edi, [ecx + 2]
nop dword [eax + eax]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x438340
sub ecx, edi
sar ecx, 1
lea eax, [ecx + ecx]
push eax
push edx
push 1
push 0
push str.Path
push dword [ebp - 0x2ac]
call esi
push 0x1a
push str.PdfServer.exe
push 1
push 0
push str.PdfEngineModule
push dword [ebp - 0x2ac]
call esi
push 0x20
push str.masterPDF_Server
push 1
push 0
push str.PdfEngineName
push dword [ebp - 0x2ac]
call esi
mov esi, eax
neg esi
sbb esi, esi
and esi, 0x80004005
push dword [ebp - 0x2ac]
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov eax, esi
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.0048a7ae
mov esp, ebp
pop ebp
ret 4