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A brand new Grandoreiro banking malware marketing campaign is concentrating on organizations in Mexico and Spain, Zscaler reported.
Zscaler ThreatLabz researchers noticed a Grandoreiro banking malware marketing campaign concentrating on organizations within the Spanish-speaking nations of Mexico and Spain.
Grandoreiro is a modular backdoor that helps the next capabilities:
- keylogging
- Automated replace for newer variations and modules
- Internet-Injects and restriction of entry to particular web sites
- Command execution
- manipulate home windows
- Information the sufferer’s browser to a sure URL
- C2 Area Era by way of DGA (Area Era Algorithm)
- Mimic mouse and keyboard actions
The marketing campaign started in June 2022 and remains to be ongoing, with assaults affecting organizations throughout a number of industries together with automotive, chemical manufacturing, and others. The menace actors behind this marketing campaign pose as Mexican authorities officers, the malware makes use of a number of anti-analysis strategies together with the implementation of Captcha to evade Sandboxes.
“On this marketing campaign, menace actors pose as authorities officers from the Mexico Metropolis Legal professional Normal’s Workplace and the Public Ministry within the type of spear-phishing emails in an effort to entice victims to obtain and run “Grandoreiro,” a prolific banking Trojan that has been energetic since at the very least 2016, particularly concentrating on customers in Latin America.” learn the publish revealed by Zscaler. “Grandoreiro is written in Delphi and makes use of strategies comparable to binary padding to inflate binaries, Captcha implementation for sandbox evasion, and command and management (CnC) communication utilizing patterns which might be an identical to LatentBot.”
The an infection chain begins with a spear-phishing message written in Spanish that features a hyperlink pointing to an internet site that then downloads a malicious ZIP file to the sufferer’s machine. The messages lure cost returns, litigation notices, mortgage mortgage cancellations, and deposit slips.
The ZIP file accommodates the Grandoreiro Loader module with a PDF icon to entice the sufferer to open it. As soon as the file is opened, it downloads and executes the “Grandoreiro” payload (400 MB) from a distant HFS server that communicates with the C2 server utilizing visitors an identical to that of LatentBot.
Thats not all. The loader can also be designed to gather system info, retrieve an inventory of put in antivirus options, cryptocurrency wallets, banking and mail purposes, and leak the knowledge to a distant server.
Grandoreiro is an ever-evolving menace that poses a severe menace to organizations throughout the globe.
“The menace actors behind the Grandoreiro Banking malware are regularly evolving their techniques and malware to efficiently perform assaults in opposition to their targets by incorporating new anti-analysis methods to evade safety options; inherits options from different malware households.” concludes the report.
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Pierluigi Paganini
(SecurityIssues – hacking, Log4Shell)
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