Anthem - TryHackMe

This write-up is based on TryHackMe's room named Anthem:-

https://tryhackme.com/room/anthem

This is a beginner level challenge on a Widows Machine.

[Task 1] Website Analysis

#1 Let's run nmap and check what ports are open:-

kali@kali:~$ sudo nmap -sS -sC -A 10.10.233.121
Starting Nmap 7.80 ( https://nmap.org ) at 2020-07-13 14:16 EDT
Nmap scan report for 10.10.233.121
Host is up (0.024s latency).
Not shown: 995 closed ports
PORT     STATE SERVICE       VERSION
80/tcp   open  http          Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
135/tcp  open  msrpc         Microsoft Windows RPC
139/tcp  open  netbios-ssn   Microsoft Windows netbios-ssn
445/tcp  open  microsoft-ds?
3389/tcp open  ms-wbt-server Microsoft Terminal Services
| rdp-ntlm-info: 
|   Target_Name: WIN-LU09299160F
|   NetBIOS_Domain_Name: WIN-LU09299160F
|   NetBIOS_Computer_Name: WIN-LU09299160F
|   DNS_Domain_Name: WIN-LU09299160F
|   DNS_Computer_Name: WIN-LU09299160F
|   Product_Version: 10.0.17763
|_  System_Time: 2020-07-13T18:17:30+00:00
| ssl-cert: Subject: commonName=WIN-LU09299160F
| Not valid before: 2020-04-04T22:56:38
|_Not valid after:  2020-10-04T22:56:38
|_ssl-date: 2020-07-13T18:18:11+00:00; -1s from scanner time.
No exact OS matches for host (If you know what OS is running on it, see https://nmap.org/submit/ ).
TCP/IP fingerprint:
OS:SCAN(V=7.80%E=4%D=7/13%OT=80%CT=1%CU=37572%PV=Y%DS=2%DC=T%G=Y%TM=5F0CA56
OS:5%P=x86_64-pc-linux-gnu)SEQ(SP=108%GCD=1%ISR=10C%TI=I%CI=I%II=I%SS=S%TS=
OS:U)OPS(O1=M508NW8NNS%O2=M508NW8NNS%O3=M508NW8%O4=M508NW8NNS%O5=M508NW8NNS
OS:%O6=M508NNS)WIN(W1=FFFF%W2=FFFF%W3=FFFF%W4=FFFF%W5=FFFF%W6=FF70)ECN(R=Y%
OS:DF=Y%T=80%W=FFFF%O=M508NW8NNS%CC=Y%Q=)T1(R=Y%DF=Y%T=80%S=O%A=S+%F=AS%RD=
OS:0%Q=)T2(R=Y%DF=Y%T=80%W=0%S=Z%A=S%F=AR%O=%RD=0%Q=)T3(R=Y%DF=Y%T=80%W=0%S
OS:=Z%A=O%F=AR%O=%RD=0%Q=)T4(R=Y%DF=Y%T=80%W=0%S=A%A=O%F=R%O=%RD=0%Q=)T5(R=
OS:Y%DF=Y%T=80%W=0%S=Z%A=S+%F=AR%O=%RD=0%Q=)T6(R=Y%DF=Y%T=80%W=0%S=A%A=O%F=
OS:R%O=%RD=0%Q=)T7(R=Y%DF=Y%T=80%W=0%S=Z%A=S+%F=AR%O=%RD=0%Q=)U1(R=Y%DF=N%T
OS:=80%IPL=164%UN=0%RIPL=G%RID=G%RIPCK=G%RUCK=G%RUD=G)IE(R=Y%DFI=N%T=80%CD=
OS:Z)

Network Distance: 2 hops
Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
| smb2-security-mode: 
|   2.02: 
|_    Message signing enabled but not required
| smb2-time: 
|   date: 2020-07-13T18:17:33
|_  start_date: N/A

TRACEROUTE (using port 443/tcp)
HOP RTT      ADDRESS
1   22.42 ms 10.9.0.1
2   22.55 ms 10.10.233.121

OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 76.56 seconds

The Following ports are open:-

• 80
• 135
• 139
• 445
• 3389

#2 What port is for the web server?

80/tcp   open  http          Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)

#3 What port is for remote desktop service?

3389/tcp open  ms-wbt-server Microsoft Terminal Services

#4 What is a possible password in one of the pages web crawlers check for?

Robots.txt :- Read about them here:- https://www.cloudflare.com/learning/bots/what-is-robots.txt/

#5 What CMS is the website using?

Let run dirsearch to find out the directories:-

Running Dirb also produces some interesting results:-

#6 What is the domain of the website?

Its right there :)

Using NMAP:-

nmap -n -p80 --script=http-title 10.10.69.79

Using WhatWeb:-

#7 What's the name of the Administrator?

Oh well well well. Don't think much for this. Just read the content of the pages and you should be OK. Hint==> There is no standard name for Admin User!

#8 Can we find find the email address of the administrator?

Format is in one of the webpages. Look for it.

[Task 2] Spot the flags

#1 What is flag 1?

Always check the Page Source of the Web Pages:-

#2 What is flag 2?

Always check the Page Source of the Web Pages:-

#3 What is flag 3?

Look around in web pages:-

#4 What is flag 4?

Look more:-

[Task 3] Final stage

#1 Let's figure out the username and password to log in to the box.(The box is not on a domain)

Well we have the Admin Username and one password by now. Try that.

#2 Gain initial access to the machine, what is the contents of user.txt?

Use the creds from last step and get the user.txt. Use rdesktop from kali.

#3 Can we spot the admin password?

How to see hidden folders:-

Search for hidden files recursively using command line in the C: drive:-

#4 Escalate your privileges to root, what is the contents of root.txt?

We cannot read the file:-

Read about icacls here:- https://ss64.com/nt/icacls.html

Got Access:-

Run cmd.exe as Adminstratoruse the root password found,,find and read the root.txt:-

Thats all!