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LetsDefend Write up Phishing Email

LetsDefend - Phishing Email#

Created: 16/01/2024 10:45 Last Updated: 05/06/2024 20:38


Phishing Email 02f595fe02c968534a1d79f3ca8ec92d.png

Your email address has been leaked and you receive an email from Paypal in German. Try to analyze the suspicious email.

File Location: Download C:\Users\LetsDefend\Desktop\Files\PhishingChallenge.zip Password: infected

This challenge prepared by @Fuuji


Start Investigation#

4fdd17bde3249c7b0a9cd9a9305f42ef.png Here we got an eml file to work with.

8705d30a3fd8ee4c4f1424d2dd81b255.png Here are the header of the email. judging from Return-Path and From, It look very suspicious!

c44c3e9f5172e680e5a6e366824fd36d.png There is an google api to possible a phishing site in a text found in body of this email.

e3a7fed5e78b2eb82c7c53f0d772549d.png I use encryptomatic to open this eml file as it should appear, there are several link that redirect to the url we’ve found.

dad8ce6890fed56f9acaf9d4266f9dc2.png The language used in this email is German and look like it trying to trick user to get a paypal reward.

749d2afa32b8ef1ffac4b08f00408918.png Scan this url in VirusTotal and it was flagged as phishing which is the same as our initial analysis.


What is the return path of the email?

bounce@rjttznyzjjzydnillquh.designclub.uk.com

What is the domain name of the url in this mail?

storage.googleapis.com

Is the domain mentioned in the previous question suspicious?

yes

What is the body SHA-256 of the domain?

13945ecc33afee74ac7f72e1d5bb73050894356c4bf63d02a1a53e76830567f5
  • Note: This is not body SHA-256 hash of the full URL we scanned in VirusTotal but the body SHA-256 hash of google api.

Is this email a phishing email?

yes

Summary#

This email was made to trick a german user to click a certain URL by telling user that he got an unclaimed reward on paypal.

a64737d663cb8616091f8b4a79b39680.png ฺBadge Obtained


LetsDefend Write up Phishing Email
https://mranv.pages.dev/posts/letsdefend-write-up-phishing-email/
Author
Anubhav Gain
Published at
2025-12-20
License
CC BY-NC-SA 4.0