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June 16, 2022Severity
High
Analysis Summary
Ursnif banking trojan also known as Gozi and Dreambot has been around for more than 10 years. It gained popularity in 2015 when its source code was published on Github and since then the moderators have always tweaked some changes to make use of their arsenal according to their gains. Mainly attacking banks and other financial institutions. As banking security has hardened and more customers have used mobile banking apps, attackers have switched to using Trojans such as Ursnif to steal other types of data, including email configurations, as well as credentials and passwords stored in the web browsers and even digital wallets. Threat actors use different techniques to make a victim fall into their trap. In many cases, a phishing email is sent to a victim that contains a malicious attachment – typically an Excel spreadsheet. If the victim clicks on an “Enable Content” button, they will not see the spreadsheet; rather an embedded macro code, which contains PowerShell commands and that’s how the infection begins to unfold.
Impact
- Information Theft
- Financial Loss
- Exposure of Sensitive Information
Indicators of Compromise
MD5
- 04447a2725f293f8a9746b0db58fa832
- dd165240f5a2de250727eb47e458d7db
SHA-256
- b1d0b5b4ce535cdbf0b8fbd21c8583fbade52436da55fbb7c1d4c75d47eca75c
- ce3d465a139b6c7ca2b3414a08230b50b1e2e341310113ada498c2aecdce1d96
SHA-1
- caf87c9fa89e4f6039a3c296bbcd7ffce4cdf829
- 2748f39c430664f6c4c9c1700f1b7d05908d8dfd
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.