According to researchers at IBM X-Force Incident Response and Intelligence Services (IRIS), the financially-motivated hacking group FIN6 is switching tactics, passing from
FIN6 group has been active since 2015, past attacks were focused on
FIN6 hackers first compromise the target
“More recently, the group has been observed targeting e-commerce environments by injecting malicious code into online checkout pages of compromised websites — a technique known as online skimming — thereby stealing payment card data transmitted to the vendor by unsuspecting customers.” reads the analysis published by IRIS.
Researchers speculate the ITG08 group is actively targeting specific employees at multinational organizations with
In the recent attacks investigated by the IRIS team, hackers used TTPs and tools associated with FIN6 group, such as the use of Windows Management Instrumentation (WMI) to automate the remote execution of PowerShell scripts, PowerShell commands with base64 encoding, and Metasploit and PowerShell for lateral movements. The experts also observed the use of Comodo code-signing certificates.
At least in one case observed by the experts, the attacker contacted a victim via email and attempted to trick it into clicking on a Google Drive URL purporting to contain an attractive job advert.
“Once clicked, the URL displayed the message, ‘Online preview is not available,’ then presented a second URL leading to a compromised or rogue domain, where the victim could download the payload under the guise of a job description.” continues the analysis. “That URL, in turn, downloaded a ZIP file containing a malicious Windows Script File (WSF) that initiated the infection routine of the More_eggs backdoor.”
The More_eggs backdoor is used to establish a reverse shell connection to the attacker’s
The More_eggs malware allows the attacker to download and execute other payloads and can run commands using cmd.exe.
In the campaign investigated by the experts, the attackers used the backdoor to download a signed binary loader and a signed Dynamic Link Library (DLL) that create a reverse shell and connect to a remote host.
Then the hackers installed the software card skimmer and used WMI and PowerShell for network reconnaissance and lateral movements.
Then attackers installed a Metasploit reverse TCP stager on select systems, subsequently spawning a Meterpreter session and Mimikatz.
“Stolen credentials are usually leveraged to facilitate privilege-escalation and further lateral movement through the compromised environment,”.
The analysis published by IBM shows that FIN6 continues to evolve and try new ways to monetize its efforts.
“ITG08 has been around for over four years now. Its attacks are financially motivated, sophisticated and persistent. The group historically has specialized in stealing payment card data from POS machines and has more recently expanded operations to target
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