Rewterz Threat Alert – Agent Tesla Malware – Active IOCs

Severity

Medium

Analysis Summary

Agent Tesla is a very popular spyware Trojan built for the.NET framework. Since its initial appearance in 2014, this has been deployed in many forms, most notably via phishing attempts. AgentTesla is renowned for stealing data from a variety of target workstations’ apps, including browsers, FTP clients, and file downloaders. Agent Tesla grabs data from the victim’s clipboard, logs keystrokes, captures screenshots, and gains access to the victim’s webcam. It has the ability to terminate running analytic programs and anti-virus applications. In an attempt to disguise its capabilities and activities from researchers, the malware also runs simple checks to see if it is operating on a virtual machine or in debug mode. This can spread through various means, including phishing emails, malicious software downloads, or drive-by downloads. Once installed, it runs in the background and can bypass traditional security measures, making it a significant threat.

Organizations and individuals can protect themselves against Agent Tesla and other types of malware by implementing strong cybersecurity measures, such as using up-to-date antivirus software, avoiding suspicious emails and attachments, and keeping all software and operating systems up to date with the latest security patches. Additionally, user education and awareness can be an effective tool in preventing successful phishing attempts and other types of social engineering attacks.

Impact

• Sensitive Data Theft
• Credentials Theft

Indicators of Compromise

MD5

• 8021460702777318a468e62cb10be252
• 3ef4b957cbd8922f5bba0cfc031a6c94
• 908a00fa64599d1f3e40e5926bb77548

SHA-256

• c32e08dd9502c6f42d7c553f1115984d1958c859f428381cff4cc17fbf5b2498
• ff6ef98e1aa7b4db979b96058a05ba107a7938546f66ce5012921a0cf5592259
• 0c480c5b85acca820cc14ca9d9fd55ea5ba106228a44f5ec1123bc796d63a786

SHA-1

• fc90f57d99a60a507d1ac9b40a851c7c9c744f3e
• 50a7f4258f6eb1795c59b3799c70ff240022626a
• 0a9295ab7a2db702c7188e2b7e2574d8db9927b8

Remediation

• Block all threat indicators at your respective controls.
• Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls