Recover blockchain.info password from .joson file ?

Recover blockchain.info password from .joson file ? - Printable Version

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Recover blockchain.info password from .joson file ? - Vido - 01-14-2018

I have wallet.aes.json file from blockchain.info from which I cant remember password so could I ise hashcat to recover it ?

RE: Recover blockchain.info password from .joson file ? - Vido - 01-14-2018

So I found this help post and I have my hash which start like this

Code:
wallet.aes.json:$blockchain$704$3454

So how can I use hashcat now ? For example my password have 5 words start with special char and ends with number ?

RE: Recover blockchain.info password from .joson file ? - Vido - 01-14-2018

So the correct Hash-Mode is 12700, but how to start it, which command is correct ?

RE: Recover blockchain.info password from .joson file ? - Vido - 01-14-2018

When I start example0 I got an error

Code:
./example0.sh 

hashcat (v4.0.1) starting...

clGetPlatformIDs(): CL_PLATFORM_NOT_FOUND_KHR

Im not using cudahashcat just hashcat ? whats wrong ?

RE: Recover blockchain.info password from .joson file ? - philsmd - 01-14-2018

1. The hashes must be formatted according to these guide/examples: https://hashcat.net/wiki/example_hashes (search for 12700). Therefore there should not be any file names within the "hash" etc (yes, I know that the jtr python script outputs the file name too... just remove it and also the separator - the colon between file name and actual hash -)
2. you need to install the drivers for your hardware (GPU or CPU). Which OpenCL-compatible devices do you have? Did you install the recommended drivers (see https://hashcat.net/hashcat) from the vendors download page (e.g. Nvidia/AMD/Intel etc)?

RE: Recover blockchain.info password from .joson file ? - Vido - 01-14-2018

I'v got 1 sorted my file starts

Code:
$blockchain$704$504e...

I have installed ocl-icd-libopencl1, ocl-icd-dev, ocl-icd-opencl-dev, Im on Intel Core2Duo not sure what else i need ?
Tnx @philsmd for helping out Smile

RE: Recover blockchain.info password from .joson file ? - philsmd - 01-14-2018

You are trying to crack with your CPU ? does it support OpenCL ?
I remember reading somewhere that Intel Core 2 are not even supported by the OpenCL drivers of intel.
Even if they were supported, it won't be very fast. It would be better to have some modern GPU (1080ti etc) or at least some modern OpenCL-compatible Intel i7 CPU etc

RE: Recover blockchain.info password from .joson file ? - Vido - 01-14-2018

Probably my cpu isnt supported. Do you now at which version is this introduced ? Basicly I know my password just need few iterations of it

RE: Recover blockchain.info password from .joson file ? - Vido - 01-14-2018

Iv found older version but im getting an error

Code:
ERROR: this copy of hashcat is outdated. Get a more recent version.

This is ridiculous

RE: Recover blockchain.info password from .joson file ? - philsmd - 01-14-2018

It doesn't make sense to get hashcat-legacy working. hashcat-legacy doesn't even support blockchain hashes. Only new versions of hashcat (OpenCL version, not the legacy version) support blockchain hashes. It doesn't make sense to complain about this.
It would make much more sense to try with a more modern CPU/GPU.