File Scraper

Scrape files for sensitive information, and generate an interactive HTML report. Based on Rabin2.

Customize the tool to your liking!

Tested on Kali Linux v2023.4 (64-bit).

Made for educational purposes. I hope it will help!

Table of Contents

• How to Install
  • Install Radare2
  • Standard Install
  • Build and Install From the Source
• Build the Template & Run
• Usage
• Images

How to Install

Install Radare2

On Kali Linux, run:

apt-get -y install radare2

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On Windows OS, download and unpack radareorg/radare2, then, add the bin directory to Windows PATH environment variable.

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On macOS, run:

brew install radare2

Standard Install

pip3 install --upgrade file-scraper

Build and Install From the Source

git clone https://github.com/ivan-sincek/file-scraper && cd file-scraper

python3 -m pip install --upgrade build

python3 -m build

python3 -m pip install dist/file_scraper-2.9-py3-none-any.whl

Build the Template & Run

Prepare a template:

{
   "authorization":{
      "query":"[^\\w\\d\\n]+(?:basic|bearer)\\ .+",
      "ignorecase":true,
      "search":true
   },
   "variable":{
      "query":"(?:access|account|admin|basic|bearer|card|conf|cred|customer|email|history|id|info|jwt|key|kyc|log|otp|pass|pin|priv|refresh|salt|secret|seed|setting|sign|token|transaction|transfer|user)[\\w\\d]*(?:\\\"\\ *\\:|\\ *\\=).+",
      "ignorecase":true,
      "search":true
   },
   "comment":{
      "query":"[^\\w\\d\\n]+(?:bug|comment|fix|issue|note|problem|to(?:\\_|\\ |)do|work)[^\\w\\d\\n]+.+",
      "ignorecase":true,
      "search":true
   },
   "url":{
      "query":"\\w+\\:\\/\\/[\\w\\-\\.\\@\\:\\/\\?\\=\\%\\&\\#]+",
      "unique":true,
      "collect":true
   },
   "ip":{
      "query":"(?:\b25[0-5]|\b2[0-4][0-9]|\b[01]?[0-9][0-9]?)(?:\\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}",
      "unique":true,
      "collect":true
   },
   "base64":{
      "query":"(?:[a-zA-Z0-9\\+\\/]{4})*(?:[a-zA-Z0-9\\+\\/]{4}|[a-zA-Z0-9\\+\\/]{3}\\=|[a-zA-Z0-9\\+\\/]{2}\\=\\=)",
      "minimum":8,
      "decode":"base64",
      "unique":true,
      "collect":true
   },
   "hex":{
      "query":"(?:(?:0x|(?:\\\\)+x)[a-fA-F0-9]{2})+|[a-fA-F0-9]+",
      "minimum":12,
      "decode":"hex",
      "unique":true,
      "collect":true
   },
   "cert":{
      "query":"-----BEGIN (?:CERTIFICATE|PRIVATE KEY)-----[\\s\\S]+?-----END (?:CERTIFICATE|PRIVATE KEY)-----",
      "decode":"cert",
      "unique":true,
      "collect":true
   }
}

Make sure your regular expressions return only one capturing group e.g. [1, 2, 3, 4]; and not a touple e.g. [(1, 2), (3, 4)].

Make sure to properly escape regular expression specific symbols in your template file, e.g. make sure to escape dot . as \\., and forward slash / as \\/, etc.

Name	Type	Required	Description
query	text	yes	Regular expression query.
search	boolean	no	Highlight matches within output; otherwise, extract matches.
ignorecase	boolean	no	Case-insensitive search.
minimum	integer	no	Show only matches longer than int characters.
maximum	integer	no	Show only matches lesser than int characters.
decode	boolean	no	Decode matches. Available decodings: url, base64 hex, cert.
unique	boolean	no	Filter out duplicates.
collect	boolean	no	Collect all matches in one place.

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How I run the tool most of the time:

file-scraper -dir directory -o results.html -e default

Default (built-in) exclude file types are as following:

car, css, gif, jpeg, jpg, mp3, mp4, nib, ogg, otf, png, storyboard, strings, svg, ttf, webp, woff, woff2, xib

Usage

File Scraper v2.9 ( github.com/ivan-sincek/file-scraper )

Usage:   file-scraper -dir directory -o out          [-t template     ] [-e excludes    ] [-th threads]
Example: file-scraper -dir decoded   -o results.html [-t template.json] [-e jpeg,jpg,png] [-th 10     ]

DESCRIPTION
    Scrape files for sensitive information
DIRECTORY
    Directory containing files, or a single file to scrape
    -dir, --directory> = decoded | files | test.exe | etc.
TEMPLATE
    JSON template file with extraction information, or a single RegEx to use
    Default: built-in JSON template file
    -t, --template = template.json | "secret\: [\w\d]+" | etc.
EXCLUDES
    Exclude all files that end with
    Use comma-separated values
    Specify 'default' to load the built-in list
    -e, --excludes = mp3 | default,jpeg,jpg,png | etc.
INCLUDES
    Include all files that end with
    Use comma-separated values
    Overrides excludes
    -i, --includes = java | json,xml,yaml | etc.
BEAUTIFY
    Beautify [minified] JavaScript (.js) files
    -b, --beautify
THREADS
    Number of parallel threads to run
    Default: 30
    -th, --threads = 10 | etc.
OUT
    Output HTML file
    -o, --out = results.html | etc.

Images

Figure 1 - Interactive Report

Figure 2 - Certificates