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Crack the Hash

Task 1: Level 1​

48bb6e862e54f2a795ffc4e541caed4d​

Before we crack the hash we have to find its type. Using hash-identifier we can identify the possible hash type.

$ hash-identifier 48bb6e862e54f2a795ffc4e541caed4d        
--------------------------------------------------

Possible Hashs:
[+] MD5
[+] Domain Cached Credentials - MD4(MD4(($pass)).(strtolower($username)))

Let's save the hash to a file.

$ echo "48bb6e862e54f2a795ffc4e541caed4d" > hash1.txt

Now we have to find the hash-mode for a MD5 hash.

1

We are now ready to crack the hash using hashcat.

$ hashcat -a 0 -m 0 hash1.txt /usr/share/wordlists/rockyou.txt 

48bb6e862e54f2a795ffc4e541caed4d:easy

We can also crack the hash using john.

$ john --format=Raw-MD5 --wordlist=/usr/share/wordlists/rockyou.txt hash1.txt 
Using default input encoding: UTF-8
Loaded 1 password hash (Raw-MD5 [MD5 128/128 SSE2 4x3])
Warning: no OpenMP support for this hash type, consider --fork=3
Press 'q' or Ctrl-C to abort, almost any other key for status
easy             (?)     
1g 0:00:00:00 DONE (2023-12-08 21:44) 5.000g/s 862080p/s 862080c/s 862080C/s erinbear..eagames
Use the "--show --format=Raw-MD5" options to display all of the cracked passwords reliably
Session completed.

Answer​

easy

 

CBFDAC6008F9CAB4083784CBD1874F76618D2A97​

Let's identify the hash type using hash-identifier.

$ hash-identifier CBFDAC6008F9CAB4083784CBD1874F76618D2A97
--------------------------------------------------

Possible Hashs:
[+] SHA-1
[+] MySQL5 - SHA-1(SHA-1($pass))

The mode for SHA-1 in hashcat is 100.

2

$ hashcat-a 0 -m 100 hash2.txt /usr/share/wordlists/rockyou.txt              

cbfdac6008f9cab4083784cbd1874f76618d2a97:password123

We can crack the hash now using the Raw-SHA1 format for john.

$ john --format=Raw-SHA1 --wordlist=/usr/share/wordlists/rockyou.txt hash2.txt 
Using default input encoding: UTF-8
Loaded 1 password hash (Raw-SHA1 [SHA1 128/128 SSE2 4x])
Warning: no OpenMP support for this hash type, consider --fork=3
Press 'q' or Ctrl-C to abort, almost any other key for status
password123      (?)     
1g 0:00:00:00 DONE (2023-12-08 21:49) 7.142g/s 9885p/s 9885c/s 9885C/s liberty..password123
Use the "--show --format=Raw-SHA1" options to display all of the cracked passwords reliably
Session completed.

Answer​

password123

 

1C8BFE8F801D79745C4631D09FFF36C82AA37FC4CCE4FC946683D7B336B63032​

We can crack the hash using hash-identifier.

$ hash-identifier 1C8BFE8F801D79745C4631D09FFF36C82AA37FC4CCE4FC946683D7B336B63032
--------------------------------------------------

Possible Hashs:
[+] SHA-256
[+] Haval-256

Let's save it to a file.

$ echo "1C8BFE8F801D79745C4631D09FFF36C82AA37FC4CCE4FC946683D7B336B63032" > hash3.txt

The mode for SHA-256 in hashcat is 1400.

3

$ hashcat -a 0 -m 1400 hash3.txt /usr/share/wordlists/rockyou.txt

1c8bfe8f801d79745c4631d09fff36c82aa37fc4cce4fc946683d7b336b63032:letmein

The format for john will be Raw-SHA256.

$ john --format=Raw-SHA256 --wordlist=/usr/share/wordlists/rockyou.txt hash3.txt
Using default input encoding: UTF-8
Loaded 1 password hash (Raw-SHA256 [SHA256 128/128 SSE2 4x])
Warning: poor OpenMP scalability for this hash type, consider --fork=3
Will run 3 OpenMP threads
Press 'q' or Ctrl-C to abort, almost any other key for status
letmein          (?)     
1g 0:00:00:00 DONE (2023-12-08 21:53) 16.66g/s 409600p/s 409600c/s 409600C/s 123456..280789
Use the "--show --format=Raw-SHA256" options to display all of the cracked passwords reliably
Session completed.

Answer​

letmein

 

$2y$12$Dwt1BZj6pcyc3Dy1FWZ5ieeUznr71EeNkJkUlypTsgbX1H68wsRom​

hash-identifier is not able to identify the type of this hash.

We will have to use another tool called Hash Analyzer.

4

The hash-mode for Bcrypt is 3200.

We know that the password is four characters long, so let's filter the rockyou.txt file.

$ egrep -x '.{1,4}' /usr/share/wordlists/rockyou.txt > filtered.txt

We can now use this filtered list to crack the hash.

$ hashcat -a 0 -m 3200 hash4.txt filtered.txt -w 4 -S

$2y$12$Dwt1BZj6pcyc3Dy1FWZ5ieeUznr71EeNkJkUlypTsgbX1H68wsRom:bleh

Answer​

bleh

 

279412f945939ba78ce0758d3fd83daa​

Let's identify the type using Hash Analyzer.

6

This time let's use CrackStation to crack the hash.

8

Answer​

Eternity22

 

Task 2: Level 2​

Hash: F09EDCB1FCEFC6DFB23DC3505A882655FF77375ED8AA2D1C13F640FCCC2D0C85​

Let's use hash-identifier to get the hash type.

$ hash-identifier F09EDCB1FCEFC6DFB23DC3505A882655FF77375ED8AA2D1C13F640FCCC2D0C85
--------------------------------------------------

Possible Hashs:
[+] SHA-256
[+] Haval-256

Since we know that the mode for SHA-256 is 1400, let's just try that first.

$ hashcat -a 0 -m 1400 hash6.txt /usr/share/wordlists/rockyou.txt

f09edcb1fcefc6dfb23dc3505a882655ff77375ed8aa2d1c13f640fccc2d0c85:paule

Answer​

paule

 

Hash: 1DFECA0C002AE40B8619ECF94819CC1B​

CrackStation gives us the password.

9

Answer​

n63umy8lkf4i

 

Hash: $6$aReallyHardSalt$6WKUTqzq.UQQmrm0p/T7MPpMbGNnzXPMAXi4bJMl9be.cfi3/qxIf.hsGpS41BqMhSrHVXgMpdjS6xeKZAs02. Salt: aReallyHardSalt​

The $6$ tells us that this is a SHAcrypt512 hash the mode for which is 1800.

10

This time we have to filter for passwords that are six characters long.

$ egrep -x '.{1,6}' /usr/share/wordlists/rockyou.txt > filtered.txt

Let's run hashcat with the correct mode.

$ hashcat -m 1800 hash7.txt filtered.txt -w 4 -S

$6$aReallyHardSalt$6WKUTqzq.UQQmrm0p/T7MPpMbGNnzXPMAXi4bJMl9be.cfi3/qxIf.hsGpS41BqMhSrHVXgMpdjS6xeKZAs02.:waka99

Answer​

waka99

 

Hash: e5d8870e5bdd26602cab8dbe07a942c8669e56d6 Salt: tryhackme​

Let's identify the hash using hash-identifier.

$ hash-identifier e5d8870e5bdd26602cab8dbe07a942c8669e56d6                                                                
--------------------------------------------------

Possible Hashs:
[+] SHA-1
[+] MySQL5 - SHA-1(SHA-1($pass))

For SHA-1, the mode we will be using is 160.

$ hashcat -a 0 -m 160 'e5d8870e5bdd26602cab8dbe07a942c8669e56d6:tryhackme' /usr/share/wordlists/rockyou.txt

e5d8870e5bdd26602cab8dbe07a942c8669e56d6:tryhackme:481616481616

Answer​

481616481616