Maldoc Analysis with ViperMonkey

Published: 2017-08-10
Last Updated: 2017-08-10 21:07:38 UTC
by Didier Stevens (Version: 1)
0 comment(s)

We received another Emotet maldoc, but this time the analysis with VBA emulator ViperMonkey will have to be done differently.

ViperMonkey is still under development, and for this maldoc, it does not manage to execute the code that reveals the base64 payload. But when we use ViperMonkey's option -a to use an alternate parser, we can extract the base64 payload.

The maldoc was delivered inside a password protected ZIP file.

This time, I made a video of the static analysis process:

 

Didier Stevens
Microsoft MVP
blog.DidierStevens.com DidierStevensLabs.com

Keywords: emotet maldoc vipermonkey
0 comment(s)
ISC Stormcast For Thursday, August 10th 2017 https://isc.sans.edu/podcastdetail.html?id=5620

Comments

cwqwqwq

www

Nov 17th 2022
6 months ago

eweew<a href="https://www.seocheckin.com/edu-sites-list/">mashood</a>

EEW

Nov 17th 2022
6 months ago

WQwqwqwq[url=https://www.seocheckin.com/edu-sites-list/]mashood[/url]

qwq

Nov 17th 2022
6 months ago

dwqqqwqwq mashood

mashood

Nov 17th 2022
6 months ago

[https://isc.sans.edu/diary.html](https://isc.sans.edu/diary.html)

isc.sans.edu

Nov 23rd 2022
6 months ago

[https://isc.sans.edu/diary.html | https://isc.sans.edu/diary.html]

isc.sans.edu

Nov 23rd 2022
6 months ago

What's this all about ..?

isc.sans.edu

Dec 3rd 2022
5 months ago

password reveal .

isc.sans.edu

Dec 3rd 2022
5 months ago

<a hreaf="https://technolytical.com/">the social network</a> is described as follows because they respect your privacy and keep your data secure:

<a hreaf="https://technolytical.com/">the social network</a> is described as follows because they respect your privacy and keep your data secure. The social networks are not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go.

<a hreaf="https://technolytical.com/">the social network</a> is not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go. The social networks only collect the minimum amount of information required for the service that they provide. Your personal information is kept private, and is never shared with other companies without your permission

isc.sans.edu

Dec 26th 2022
5 months ago

https://thehomestore.com.pk/

isc.sans.edu

Dec 26th 2022
5 months ago

Login here to join the discussion.


Diary Archives