/////////////////////////////////////////////////////////////////////////////////////////////
Add these lines to JtR /run/dynamic.conf:
/////////////////////////////////////////////////////////////////////////////////////////////
[List.Generic:dynamic_1591]
Expression=md5($u:ManagementRealm:$p)
CONST1=:ManagementRealm:
Flag=MGF_USERNAME
Flag=MGF_NOTSSE2Safe
Func=DynamicFunc__clean_input
Func=DynamicFunc__append_userid
Func=DynamicFunc__append_input1_from_CONST1
Func=DynamicFunc__append_keys
Func=DynamicFunc__crypt_md5
Test=$dynamic_1591$1c3470194afdc84b90a0781c5e4462fc:test:user

/////////////////////////////////////////////////////////////////////////////////////////////
JBoss hash creation
/////////////////////////////////////////////////////////////////////////////////////////////
root@kali:~/ts/jboss-as-7.1.1.Final/bin# ./add-user.sh

What type of user do you wish to add?
 a) Management User (mgmt-users.properties)
 b) Application User (application-users.properties)
(a): a

Enter the details of the new user to add.
Realm (ManagementRealm) :
Username : user
Password :
Re-enter Password :
About to add user 'user' for realm 'ManagementRealm'
Is this correct yes/no? yes
Added user 'user' to file '/root/ts/jboss-as-7.1.1.Final/standalone/configuration/mgmt-users.properties'
Added user 'user' to file '/root/ts/jboss-as-7.1.1.Final/domain/configuration/mgmt-users.properties'
root@kali:~/ts/jboss-as-7.1.1.Final/bin# cat /root/ts/jboss-as-7.1.1.Final/standalone/configuration/mgmt-users.properties
#
# Properties declaration of users for the realm 'ManagementRealm' which is the default realm
# for new AS 7.1 installations. Further authentication mechanism can be configured
# as part of the <management /> in standalone.xml.
#
# Users can be added to this properties file at any time, updates after the server has started
# will be automatically detected.
#
# By default the properties realm expects the entries to be in the format: -
# username=HEX( MD5( username ':' realm ':' password))
#
# A utility script is provided which can be executed from the bin folder to add the users: -
# - Linux
#  bin/add-user.sh
#
# - Windows
#  bin\add-user.bat

# The following illustrates how an admin user could be defined, this
# is for illustration only and does not correspond to a usable password.
#
user=1c3470194afdc84b90a0781c5e4462fc

/////////////////////////////////////////////////////////////////////////////////////////////
JtR test
/////////////////////////////////////////////////////////////////////////////////////////////
root@kali:/opt/bleeding-jumbo/JohnTheRipper/run# ./john --format=dynamic_1591 bibi
Using default input encoding: UTF-8
Loaded 1 password hash (dynamic_1591 [md5($u:ManagementRealm:$p) 32/64 x2 (MD5_body)])
Warning: no OpenMP support for this hash type, consider --fork=8
Press 'q' or Ctrl-C to abort, almost any other key for status
password         (davy)
1g 0:00:00:00 DONE 2/3 (2016-04-15 08:57) 5.882g/s 14758p/s 14758c/s 14758C/s 123456..phillips
Use the "--show" option to display all of the cracked passwords reliably
Session completed