Since its initiation in 2021, Vice Society has been making headlines after making continuous high-profile targeted attacks on Education and healthcare sectors. Institutions from the US and Europe have been victims of Vice Society which includes major ransomware attacks on the Los Angeles Unified School District. They reportedly exploit PrintNightmare vulnerability (CVE-2021-1675 and CVE-2021-34527 ) in their campaigns.
Allegedly a Russian-speaking group, Vice Society's operators utilize a double extortion scheme, which involves the addition of new victims to their anonymized leak site and exposing exfiltrated data. They offer an active infrastructure to maintain their illegal activities. In the initial days, they were seen utilizing a range of ransomware that's sold on Dark Web Markets, including HelloKitty/FiveHands, Zeppelin Ransomware, and BlackCat rather than their own unique malware. Researchers have been able to identify the specific ransomware family used in each attack based on the email address used in the ransom notes left behind and from the ransomware analysis.
In December 2022, Sentinel Labs detects Vice Society using their own first custom-branded ransomware and named it “PolyVice“. Recently in April 2023 Palo Alto Unit 42, also observed them using their custom-built and stealthy Powershell script for exfiltration and extortion purposes. Vice Society has been known to mostly target critical infrastructure by compromising their systems and demanding a ransom in exchange for the release of their data. According to TrendMicro, they also observed vice society targeting manufacturing industries. As per the CISA report, The education sector is the most targeted sector among others. In fact, in 2022, Vice Society was the largest attacker in the education sector as reported by Malwarebytes.
The following presents some of the techniques that we uncovered during our analysis.
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