Research

Different spam runs for same malware

We have now seen at least two spam runs which try to convince the recipient to install Trojan-Spy.Win32.Goldun.a.
This Trojan tries to steal bank related info.

What’s interesting is that the two spam runs used different techniques.

The first run had the following message body:


Hi!
Clients Database.
Clients.rar attached. In clients.rar: clients.csv – database in Microsoft Excel.
X.chm – help file with another information about our clients.
Password on archive: 123.
Best regards, Alex.

As you can see a passwordprotected rar archive was used. The mentioned .chm archive contained an exploit to run Trojan-Spy.Win32.Goldun.a, which also resided in the .chm file.

The second message is a ‘true’ fraud mail.
It pretends to be from E-Gold, which is a banking site, and has a .zip archive attached to it. This .zip archive contains “setup.exe”, which is Trojan-Spy.Win32.Goldun.a.

So we see two different (social) engineering techniques used in two different spam runs for the same malware.
I expect that we will see a growing number of similar cases in the future, as blackhats relentlessly keep trying to make money out of the web.

Different spam runs for same malware

Your email address will not be published. Required fields are marked *

 

Reports

The leap of a Cycldek-related threat actor

The investigation described in this article started with one such file which caught our attention due to the various improvements it brought to this well-known infection vector.

Lazarus targets defense industry with ThreatNeedle

In mid-2020, we realized that Lazarus was launching attacks on the defense industry using the ThreatNeedle cluster, an advanced malware cluster of Manuscrypt (a.k.a. NukeSped). While investigating this activity, we were able to observe the complete life cycle of an attack, uncovering more technical details and links to the group’s other campaigns.

Sunburst backdoor – code overlaps with Kazuar

While looking at the Sunburst backdoor, we discovered several features that overlap with a previously identified backdoor known as Kazuar. Our observations shows that Kazuar was used together with Turla tools during multiple breaches in past years.

Subscribe to our weekly e-mails

The hottest research right in your inbox