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PostPosted: Mon Feb 05, 2018 6:38 pm 

Joined: Fri Feb 02, 2018 3:14 pm
Posts: 9
Hi. I am trying to extract a .PAK file from Monsters vs Aliens game, but every program that I use fails.

This is the file i'm trying to extract ( https://mega.nz/#!ImByVQCB!YWzNaza9ZJT4 ... 1sHYWUZ7Yk ), supposedly the Ginormica 3D model. I need it to use in a non-comercial fan-made game that some friends are creating, called Sizebox.

I was talking with Mygoshi of another related topic, like this and this another but it seems the case is different.

Can someone help me with unpacking these?
I thank very much for your help.

(Sorry my bad english)


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PostPosted: Tue Feb 06, 2018 9:19 am 
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Joined: Wed Jul 30, 2014 9:32 pm
Posts: 8636
I'm not sure it's a sort of archive, for sure not a simple format, so I leave some keywords taken from the file:
BuildMan - Wed Jan 28 16:31:25 2009
GS version 3.140.7
HighRez Windows WorldWide


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PostPosted: Fri Feb 09, 2018 11:31 pm 

Joined: Fri Feb 02, 2018 3:14 pm
Posts: 9
When i try to open with some programs, i get this output:

Image

i've seen in another program that the file is lzma86 type, but i'm not sure yet.


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PostPosted: Fri Feb 09, 2018 11:52 pm 

Joined: Fri Feb 02, 2018 3:14 pm
Posts: 9
I've then renamed the file to BaseGinormica.lzma, and receive this output from Peazip:

Image

And receive this text output when i test.
Code:
7-Zip [32] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=pt_BR.UTF-8,Utf16=on,HugeFiles=on,32 bits,4 CPUs Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz (806E9),ASM,AES-NI)

Scanning the drive for archives:
1 file, 31779508 bytes (31 MiB)

Testing archive: /home/daniel/Downloads/BaseGinormica.lzma
WARNING:
/home/daniel/Downloads/BaseGinormica.lzma
Can not open the file as [lzma] archive
The file is open as [lzma86] archive

--
Path = /home/daniel/Downloads/BaseGinormica.lzma
Open WARNING: Can not open the file as [lzma] archive
Type = lzma86


Sub items Errors: 1

Archives with Errors: 1

Sub items Errors: 1


I have already tried to rename the file to the .lzma86 extension, but the error is the same.


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PostPosted: Sun Feb 11, 2018 9:38 am 
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Joined: Fri Aug 08, 2014 1:06 am
Posts: 513
here is a generic bms script attempt to extract all file in the pak :D
Code:
# script for QuickBMS http://aluigi.altervista.org/quickbms.htm

get FOLDER basename
findloc OFFSET binary "\x26\x00\x00\x00\x01\x00\x01\x00"
do
    goto OFFSET
    goto 0x30 0 seek_cur
    getdstring NAME 0x40
    goto 0x8 0 seek_cur   
    get SIZE long
    math SIZE - 4
    get SKIP long
    savepos OFFSET
    get CHECK long
    if CHECK == 0x20534444
        string EXT = dds
    elif CHECK == 0xAC44
        string EXT = aud //??
    elif CHECK == 0x4
        string EXT = mdl
    else
        string EXT = dat
    endif
    string NAME p "%s\%s.%s" FOLDER NAME EXT
    log NAME OFFSET SIZE
    findloc OFFSET binary "\x26\x00\x00\x00\x01\x00\x01\x00" 0 "" -1
while OFFSET != ""

i did my best to guess some extensions :D

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Last edited by Acewell on Mon Feb 19, 2018 9:39 am, edited 1 time in total.

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PostPosted: Sun Feb 11, 2018 12:11 pm 
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Joined: Wed Jul 30, 2014 9:32 pm
Posts: 8636
for automatically decompressing lzma data without knowing the type of lzma and its decompressed size it's enough to use:
comtype lzma_dynamic
clog NAME OFFSET SIZE SIZE


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PostPosted: Sun Feb 11, 2018 6:04 pm 

Joined: Fri Feb 02, 2018 3:14 pm
Posts: 9
Guys, you are my heroes! <3


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PostPosted: Sun Feb 11, 2018 7:49 pm 

Joined: Fri Feb 02, 2018 3:14 pm
Posts: 9
I've sucessfully extracted all files, thank you guys. I've just to put the extension in some files, though i don't know what extension to put in anothers. I've identified 226 of 435 files until now.


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PostPosted: Sun Feb 11, 2018 8:44 pm 

Joined: Fri Feb 02, 2018 3:14 pm
Posts: 9
Is there a way to list the original filenames with their extension in quickbms?

All files turned this way. I could only discover the extent of some. Take a look: https://mega.nz/#!Un5QCCLS!MPMyilHnequZ ... yXq-SX2-6k


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PostPosted: Mon Feb 12, 2018 2:04 am 
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Joined: Fri Aug 08, 2014 1:06 am
Posts: 513
the original filenames are stored in the pak but the extensions are not, you have to guess. :)
also when you extract the files with my scripts and you get a duplicate file prompt press "r" to
rename duplicates because there is some files with same name but different size. :D

edit
i combined the 2 scripts and added a check to guess extensions too. :)

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