TryHackMe | Redline Walkthrough

 

Learn how to use Redline to perform memory analysis and to scan for IOCs on an endpoint.

Link- https://tryhackme.com/room/btredlinejoxr3d


Who created Redline?

FireEye

What data collection method takes the least amount of time?

Standard Collector

You are reading a research paper on a new strain of ransomware. You want to run the data collection on your computer based on the patterns provided, such as domains, hashes, IP addresses, filenames, etc. What method would you choose to run a granular data collection against the known indicators?

IOC Search Collector

What script would you run to initiate the data collection process? Please include the file extension.

RunRedlineAudit.bat

If you want to collect the data on Disks and Volumes, under which option can you find it?

Disk Enumeration

What cache does Windows use to maintain a preference for recently executed code?

Prefetch

Where in the Redline UI can you view information about the Logged in User?

System Information

Provide the Operating System detected for the workstation.

Windows Server 2019 Standard 17763


Provide the BIOS Version for the workstation.

Xen 4.2.amazon

What is the suspicious scheduled task that got created on the victim’s computer?

It is easier to check the task scheduler for this

MSOfficeUpdateFa.ke


Find the message that the intruder left for you in the task.

Find the flag in the description above


There is a new System Event ID created by an intruder with the source name “THM-Redline-User” and the Type “ERROR”. Find the Event ID #.

Check redline or event viewer for this

546


Provide the message for the Event ID.

Someone cracked my password. Now I need to rename my puppy

It looks like the intruder downloaded a file containing the flag for Question 8. Provide the full URL of the website.

https://wormhole.app/download-stream/gI9vQtChjyYAmZ8Ody0AuA


Provide the full path to where the file was downloaded to including the filename.

C:\Program Files (x86)\Windows Mail\SomeMailFolder\flag.txt


Provide the message the intruder left for you in the file.

Open the file and view the flag

What is the actual filename of the Keylogger?

psylog.exe

What filename is the file masquerading as?

THM1768.EXE

Who is the owner of the file?

win-2det5dp0np\charles

What is the file size in bytes?

35400

Provide the full path of where the .ioc file was placed after the Redline analysis, include the .ioc filename as well

c:\users\charles\desktop\keylogger-iocsearch\iocs\keylogger.ioc


TASK 6 currently needs to be fixed by tryhackme as it does not work



Moving on to TASK 7


Can you identify the product name of the machine?

Windows 7 Home Basic


Can you find the name of the note left on the Desktop for the “Charles”?

_R_E_A_D___T_H_I_S___AJYG1O_.txt


Find the Windows Defender service; what is the name of its service DLL?

MpSvc.dll


The user manually downloaded a zip file from the web. Can you find the filename?

eb5489216d4361f9e3650e6a6332f7ee21b0bc9f3f3a4018c69733949be1d481.zip


Provide the filename of the malicious executable that got dropped on the user’s Desktop.

Endermanch@Cerber5.exe


Provide the MD5 hash for the dropped malicious executable.

fe1bc60a95b2c2d77cd5d232296a7fa4


What is the name of the ransomware?

Cerber


That’s it! See you in the next Room :)


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