2021-07-02 (FRIDAY) - ASTAROTH/GUILDMA FROM BRAZIL MALSPAM

NOTICE:

• The zip archives on this page have been updated, and they now use the new password scheme.  For the new password, see the "about" page of this website.

ASSOCIATED FILES:

• 2021-07-02-Astaroth-Guildma-notes.txt.zip   2.1 kB   (2,069 bytes)
• 2021-07-02-Astaroth-Guildma-malspam-2-examples.zip   4.7 kB   (4,721 bytes)
• 2021-07-02-Astaroth-Guildma-malware-and-artifacts.zip   3.2 MB   (3,226,269 bytes)
• 2021-07-02-Astaroth-Guildma-infection-traffic.pcap.zip   5.8 MB   (5,842,354 bytes)

 

Shown above:  Screenshot from one of the emails.

 

Shown above:  Downloading malicious zip archive from the email link.

 

Shown above:  Extracted Windows shortcut from the downloaded zip archive.

 

Shown above:  Some of the traffic seen during this infection filtered in Wireshark.

 

Shown above:  Artifact from the infected Windows host.

 

Shown above:  Another artifact from the infected Windows host.

 

Shown above:  More artifacts and some malware found on the infected Windows host.

 

Shown above:  Shortcut in the Windows Startup menu folder to keep the infection persistent.

 

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