Threat Level: green Handler on Duty: Russ McRee

SANS ISC: Simple Phishing Through SANS ISC InfoSec Forums

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Simple Phishing Through

For a long time, moving services to the cloud has been a major trend. Many organizations jumped into the cloud because it’s much easier and cost less money (in terms of maintenance, licence, electricity, etc). If so, why should bad guys not follow the same trend? Last year, I wrote a diary about a phishing campaign that used[1] to handle the HTTP POST data. Yesterday, I found a new one fully hosted by a cloud service. It was accessed through a shortened URL in a mail: is a service which offers powerful online forms. They have a free plan which allows 3 forms / 15 fields / 50 submissions per month. This can be more than enough for a phishing campaign, especially if you create multiple accounts. Once registered, you can design your forms and manage them via a nice dashboard:

Not surprisingly, I found more than one malicious forms:


Using such services is interesting from an attacker point of view because they don’t need to compromize other resources to host their phishing pages and cloud services are usually allowed through proxies/access-lists.


Xavier Mertens (@xme)
Senior ISC Handler - Freelance Cyber Security Consultant

I will be teaching next: Reverse-Engineering Malware: Malware Analysis Tools and Techniques - SANS Paris November 2020


563 Posts
ISC Handler
Aug 23rd 2018
A similar "form-hosting" web-site being abused, e.g.,

But, at the bottom of the page, there is a "report abuse" hyperlink, presumably appended by the web-site, not by the scammer.

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