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[THM] SOC Workbooks and Lookups

This is a full walkthrough with answers and explanations for the TryHackMe room "SOC Workbooks and Lookups".

[THM] SOC Workbooks and Lookups

Link to the room: https://tryhackme.com/room/socworkbookslookups.

[Task 2] Assets & Identities

img-description

Looking at the identity inventory, what is the role of R.Lund at the company?

1
US Financial Adviser

Check the “Role” column in the identity inventory table for R.Lund.

Checking the asset inventory, what data does the HQ-FINFS-02 server store?

1
Financial records

Check the “Purpose” column in the asset inventory table for HQ-FINFS-02.

Finally, does the file sharing from the scenario look legitimate and expected? (Yea/Nay)

1
Yea

[Task 3] Network Diagrams

img-description network diagram

According to the network diagram, which service is exposed on the TCP/10443 port?

1
VPN

Now, which subnet would the server behind 172.16.15.99 IP belong to?

1
Database subnet

Finally, does the scenario look like a True Positive (TP) or False Positive (FP)?

1
TP

VPN brute force, DB scan, switching subnets is something that can turn on your inner SOC radar.


[Task 4] Workbooks Theory

img-description Unusual Login Location Workbook

Which SOC role would use workbooks the most (e.g. SOC Manager)?

1
SOC L1 Analyst

What is the process of gathering user, host, or IP context using TI and lookups?

1
Enrichment

Enrichment: Use Threat Intelligence and identity inventory to get information about the affected user

Looking at the workbook example, what platform is used as an identity inventory source?

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BambooHR

Review the enrichment stage in the workbook.


[Task 5] Workbooks Practice

img-description

What flag did you receive after completing the first workbook?

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THM{the_most_common_soc_workbook}

What flag did you receive after completing the second workbook?

1
THM{be_vigilant_with_powershell}

What flag did you receive after completing the third workbook?

1
THM{asset_inventory_is_essential}
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