IOS – Restore data from encrypted iOS backup without respective device

It depends whether the remaining files you have are from an encrypted backup.

It won't be feasible to read your backup data if you have an encrypted backup with no Info.plist, Status.plist, or Manifest.mbdx files

However, if your backup wasn't encrypted, it will be possible to read that data. You'll find that whilst the filenames are unhelpful (they're SHA-1 hashes of the file's internal path), the file contents easily readable. It's only the filenames that'll be lost.

If you're looking for images, try renaming a bunch of the files to have .JPG extensions, and see whether Windows Explorer or macOS Finder previews them for you.

There are a few approaches for digging into what's there in bulk. You mentioned using iPhone Backup Extractor, and there's a guide on how a use "Bulk Rename Utility" to read backup data when in this situation.

I had the same problem and found a great article that helped me decrypt the keychain from my iOS 9 backup: Recovering Google Authenticator Keys from iOS Backups.

Here are the steps for El Capitan:

• Install pip: sudo easy_install pip

• Install m2crypto (see answer to Trouble installing m2crypto with pip on El Capitan)

  • First, install openssl and swig with Homebrew: brew install openssl swig

  • Then install m2crypto using pip:

    env LDFLAGS="-L$(brew --prefix openssl)/lib" \
    CFLAGS="-I$(brew --prefix openssl)/include" \
    SWIG_FEATURES="-cpperraswarn -includeall -I$(brew --prefix openssl)/include" \
    pip install --user m2crypto
    

• Install some more Python packages:

  pip install --user construct progressbar pycrypto pyasn1
  

• Download the iPhone Data Protection Tools
• Extract your backup: python backup_tool.py PATH_TO_BACKUP

• And finally, decrypt your keychain:

  python keychain_tool.py -d "PATH_TO_extract/KeychainDomain/keychain-backup.plist" "PATH_TO_extract/Manifest.plist"