Function at 0x56f790
Capabilities:
Get file size
Read file on windows
Set registry value

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x5d7208
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x4c4
push ebx
push esi
push edi
mov edi, dword [ebp + 8]
xor esi, esi
mov ebx, ecx
cmp edi, esi
mov dword [ebp - 0x10], esp
mov dword [ebp - 0x1c], ebx
mov dword [ebp - 4], esi
je 0x56fd5a
call fcn.0056f6c0
cmp dword [0x692d4c], esi
jne 0x56f804
mov eax, dword [0x692d48]
cmp eax, esi
jne 0x56f7f3
push str.Urlmon.dll
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
cmp eax, esi
mov dword [0x692d48], eax
je 0x56f804
push str.FindMimeFromData
push eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov dword [0x692d4c], eax
mov eax, dword [0x692d4c]
mov byte [ebp - 0x11], 1
cmp eax, esi
mov byte [ebp - 0x12], 0
jne 0x56f821
cmp dword [0x692d40], esi
je 0x56fd16
push esi
push esi
push 3
push esi
push 3
push accept
push edi
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov edx, eax
cmp edx, 0xffffffff
mov dword [ebp - 0x24], edx
je 0x56fd16
mov ecx, 0x40
xor eax, eax
lea edi, [ebp - 0x130]
push esi
rep stosd dword es:[edi], eax
stosb byte es:[edi], al
lea eax, [ebp - 0x20]
lea ecx, [ebp - 0x130]
push eax
push 0x100
push ecx
push edx
mov dword [ebp - 0x28], 0x100
mov dword [ebp - 0x20], esi
call dword [sym.imp.KERNEL32.dll_ReadFile]
cmp eax, esi
je 0x56fd05
mov ecx, dword [ebp - 0x20]
cmp ecx, esi
jbe 0x56fd05
mov eax, dword [0x692d4c]
cmp eax, esi
je 0x56f9ba
lea edx, [ebp - 0x18]
push esi
push edx
push esi
push esi
push ecx
lea ecx, [ebp - 0x130]
mov byte [ebp - 4], 1
push ecx
push esi
push esi
mov dword [ebp - 0x18], esi
call eax
cmp eax, esi
jne 0x56f9b1
mov eax, dword [ebp - 0x18]
cmp eax, esi
je 0x56f9b1
add ebx, 0xcc
push eax
mov ecx, ebx
mov byte [ebp - 0x11], 0
call fcn.005addfd
mov edx, dword [ebp - 0x18]
push edx
call dword [sym.imp.ole32.dll_CoTaskMemFree]
mov eax, dword [ebx]
push str.application_octet_stream
push eax
mov dword [ebp - 4], 1
call fcn.0059adb0
add esp, 8
test eax, eax
je 0x56f920
mov eax, dword [ebx]
push str.text_plain
push eax
call fcn.0059adb0
add esp, 8
test eax, eax
je 0x56f920
mov eax, dword [ebx]
push str.text_html
push eax
call fcn.0059adb0
add esp, 8
test eax, eax
jne 0x56f92c
cmp dword [0x692d40], esi
je 0x56f92c
mov byte [ebp - 0x11], 1
mov eax, dword [ebx]
push str.application_octet_stream
push eax
call fcn.0059adb0
add esp, 8
test eax, eax
jne 0x56f9b1
cmp dword [ebp - 0x20], 7
jb 0x56f9b1
mov ecx, 3
mov edi, 0x669774
lea esi, [ebp - 0x130]
xor eax, eax
repe cmpsb byte [esi], byte es:[edi]
jne 0x56f9b1
mov cl, byte [ebp - 0x12c]
mov al, 1
test cl, 0x80
je 0x56f96b
xor al, al
test cl, 0x40
je 0x56f972
xor al, al
test cl, 0x20
je 0x56f979
xor al, al
test cl, 0x10
je 0x56f980
xor al, al
test cl, 2
je 0x56f987
xor al, al
mov cl, byte [ebp - 0x12d]
test cl, cl
je 0x56f9b1
cmp cl, 2
ja 0x56f9b1
test al, al
je 0x56f9b1
push str.video_x_flv
push 0x665f68
push ebx
call fcn.005a6a18
add esp, 0xc
mov byte [ebp - 0x11], 0
mov dword [ebp - 4], 0
xor esi, esi
cmp dword [0x692d40], esi
je 0x56fd05
mov al, byte [ebp - 0x11]
test al, al
je 0x56fd05
mov ebx, dword [ebp - 0x24]
mov ecx, 0xa8
xor eax, eax
lea edi, [ebp - 0x3d0]
rep stosd dword es:[edi], eax
lea ecx, [ebp - 0x2c]
xor edi, edi
push ecx
push ebx
mov byte [ebp - 0x3d0], 1
mov dword [ebp - 0x18], edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov esi, eax
cmp esi, 0xffffffff
jne 0x56fa0f
call dword [sym.imp.KERNEL32.dll_GetLastError]
test eax, eax
jne 0x56faba
mov edx, dword [ebp - 0x2c]
push 1
push 0
push 0
push edx
call fcn.00593f90
xor ecx, ecx
add eax, esi
adc edx, ecx
js 0x56faba
jg 0x56fa37
cmp eax, 0x100
jbe 0x56faba
test edx, edx
jg 0x56fa4f
jl 0x56fa44
cmp eax, 0x1388
jae 0x56fa4f
mov dword [ebp - 0x28], eax
jmp 0x56fa56
mov dword [ebp - 0x28], 0x1388
mov edx, dword [ebp - 0x28]
push edx
call fcn.005a9fe9
mov esi, eax
add esp, 4
test esi, esi
je 0x56faba
push 0
push 0
push 0
push ebx
mov dword [ebp - 0x20], 0
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
mov ecx, dword [ebp - 0x28]
lea eax, [ebp - 0x20]
push 0
push eax
push ecx
push esi
push ebx
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x56faaf
mov eax, dword [ebp - 0x20]
test eax, eax
jbe 0x56faaf
lea edx, [ebp - 0x3d0]
push edx
push 0
push eax
push esi
call dword [0x692d40]
mov edi, eax
mov dword [ebp - 0x18], edi
push esi
call fcn.005aa012
add esp, 4
jmp 0x56fad9
mov ecx, dword [ebp - 0x20]
lea eax, [ebp - 0x3d0]
push eax
push 0
lea edx, [ebp - 0x130]
push ecx
push edx
call dword [0x692d40]
mov edi, eax
mov dword [ebp - 0x18], edi
test edi, edi
je 0x56fae6
cmp edi, 0xffffffff
je 0x56fae6
mov byte [ebp - 0x11], 0
cmp edi, 3
jne 0x56fb23
mov ebx, dword [ebp - 0x1c]
mov ecx, dword [ebp - 0x20]
xor esi, esi
mov eax, dword [ebx + 0x120]
mov edx, dword [ebx + 0x124]
cmp eax, ecx
jne 0x56fb11
cmp edx, esi
jne 0x56fb11
test edx, edx
jg 0x56fb1a
jl 0x56fb11
test eax, eax
ja 0x56fb1a
cmp dword [ebp - 0x28], 0x1388
jb 0x56fb32
mov dword [ebp - 0x18], 1
jmp 0x56fb4e
cmp edi, 1
je 0x56fb4b
cmp edi, 2
je 0x56fb4b
jmp 0x56fd05
push 0x691568
lea ecx, [ebx + 0xcc]
mov byte [ebp - 0x12], 1
call fcn.005addd6
jmp 0x56fd05
mov ebx, dword [ebp - 0x1c]
lea edi, [ebp - 0x2a3]
or ecx, 0xffffffff
xor eax, eax
repne scasb al, byte es:[edi]
not ecx
dec ecx
je 0x56fc8d
lea eax, [ebp - 0x2a3]
push 0x685f64
push eax
call fcn.0059adb0
add esp, 8
test eax, eax
jne 0x56fb8d
lea ecx, [ebx + 0xcc]
push str.text_plain
push ecx
jmp 0x56fc3f
lea edx, [ebp - 0x2a3]
push 0x668f2c
push edx
call fcn.0059adb0
add esp, 8
test eax, eax
je 0x56fc33
lea eax, [ebp - 0x2a3]
push str.html
push eax
call fcn.0059adb0
add esp, 8
test eax, eax
je 0x56fc33
mov esi, dword [ebx + 0xa4]
cmp byte [esi], 0x2e
jne 0x56fbcd
inc esi
mov eax, dword [0x692d44]
test eax, eax
je 0x56fc16
lea ecx, [ebp - 0x2a3]
push ecx
push esi
call fcn.0059adb0
add esp, 8
test eax, eax
je 0x56fc16
push 0
lea edx, [ebp - 0x307]
push esi
push edx
call dword [0x692d44]
cmp eax, 1
jne 0x56fc16
push esi
lea eax, [ebx + 0xcc]
push str.idmcheckedtype__s
push eax
call fcn.005a6a18
add esp, 0xc
jmp 0x56fc47
lea ecx, [ebp - 0x2a3]
lea edx, [ebx + 0xcc]
push ecx
push str.idmcheckedtype__s
push edx
call fcn.005a6a18
add esp, 0xc
jmp 0x56fc47
lea eax, [ebx + 0xcc]
push str.text_html
push eax
call fcn.005a6a18
add esp, 8
cmp dword [ebp - 0x18], 2
jne 0x56fd05
mov eax, dword [ebx + 0x144]
test ah, 1
je 0x56fd05
mov edx, dword [ebx + 0x3c0]
mov eax, dword [ebp - 0x270]
lea ecx, [ebp - 0x18]
push 4
push ecx
push 4
push 0
push str.exLenToSkip
push edx
mov dword [ebx + 0x2e8], eax
mov dword [ebp - 0x18], eax
call dword [sym.imp.ADVAPI32.dll_RegSetValueExA]
jmp 0x56fd05
lea edi, [ebp - 0x307]
or ecx, 0xffffffff
xor eax, eax
repne scasb al, byte es:[edi]
not ecx
dec ecx
je 0x56fd05
lea eax, [ebp - 0x307]
push str.application_octet_stream
push eax
call fcn.0059adb0
add esp, 8
test eax, eax
je 0x56fd05
lea ecx, [ebp - 0x307]
push str.text_plain
push ecx
call fcn.0059adb0
add esp, 8
test eax, eax
je 0x56fd05
lea edx, [ebp - 0x307]
push str.text_html
push edx
call fcn.0059adb0
add esp, 8
test eax, eax
je 0x56fd05
mov ecx, dword [ebp - 0x1c]
lea eax, [ebp - 0x307]
push eax
add ecx, 0xcc
push 0x665f68
push ecx
call fcn.005a6a18
add esp, 0xc
mov edx, dword [ebp - 0x24]
push edx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov al, byte [ebp - 0x11]
test al, al
je 0x56fd73
lea ecx, [ebp - 0x24]
call fcn.005729d0
mov eax, dword [ebp + 8]
lea ecx, [ebp - 0x24]
push eax
mov byte [ebp - 4], 5
call fcn.00572b40
mov ecx, dword [ebp + 0xc]
mov byte [ebp - 4], 0
mov dword [ecx], eax
lea ecx, [ebp - 0x24]
call fcn.00572a00
mov al, byte [ebp - 0x12]
test al, al
jne 0x56fd5a
mov eax, dword [ebp - 0x1c]
mov byte [eax + 0x2ca], 1
mov dword [eax + 0xb0], 3
mov ecx, dword [ebp - 0xc]
pop edi
pop esi
mov dword fs:[0], ecx
pop ebx
mov esp, ebp
pop ebp
ret 8
mov al, byte [ebp - 0x12]
test al, al
jne 0x56fd5a
mov esi, dword [ebp - 0x1c]
or ecx, 0xffffffff
xor eax, eax
mov edx, dword [esi + 0xcc]
mov edi, edx
repne scasb al, byte es:[edi]
not ecx
dec ecx
je 0x56fd46
push str.text_html
push edx
call fcn.0059adb0
mov edx, dword [ebp + 0xc]
add esp, 8
neg eax
sbb eax, eax
inc eax
mov dword [edx], eax
jne 0x56fd46
mov eax, dword [esi + 0x3c]
test eax, eax
jne 0x56fdbb
test byte [esi + 0x144], 8
je 0x56fd46
mov eax, dword [ebp - 0x1c]
or ecx, 0xffffffff
mov ebx, dword [eax + 0xa4]
xor eax, eax
mov edi, ebx
repne scasb al, byte es:[edi]
not ecx
dec ecx
je 0x56fd46
cmp byte [ebx], 0x2e
jne 0x56fddc
inc ebx
mov edi, ebx
or ecx, 0xffffffff
xor eax, eax
lea edx, [ebp - 0x4d0]
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov eax, ecx
mov esi, edi
mov edi, edx
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, eax
and ecx, 3
rep movsb byte es:[edi], byte [esi]
lea ecx, [ebp - 0x4d0]
push ecx
call fcn.0059468b
push 0x685f64
push ebx
call fcn.0059adb0
add esp, 0xc
test eax, eax
je 0x56fd46
lea edx, [ebp - 0x4d0]
push edx
push str.3GP_7Z_AAC_ACE_AIF_ARJ_ASF_AVI_BIN_BZ2_DOC_DOCX_EXE_FLV_GZ_GZIP_IMG_ISO_LZH_M4A_M4V_MKV_MOV_MP3_MP4_MPA_MPE_MPEG_MPG_MSI_MSU_OGG_OGV_PDF_PLJ_PPS_PPT_QT_R0_R1_RA_RAR_RM_SEA_SIT_SITX_TAR_TIF_TIFF_WAV_WEBM_WMA_WMV_Z_ZIP
call fcn.00591800
add esp, 8
test eax, eax
je 0x56fd46
mov eax, dword [ebp - 0x1c]
push str.text_plain
mov eax, dword [eax + 0xcc]
push eax
call fcn.0059adb0
mov ecx, dword [ebp + 0xc]
add esp, 8
neg eax
sbb eax, eax
inc eax
mov dword [ecx], eax
jmp 0x56fd46