A cyberattack that shut down two of the top casinos in Las Vegas last year quickly became one of the most riveting security stories of 2023. It was the first known case of native English-speaking hackers in the United States and Britain teaming up with ransomware gangs based in Russia. But that made-for-Hollywood narrative has eclipsed a far more hideous trend: Many of these young, Western cybercriminals are also members of fast-growing online groups that exist solely to bully, stalk, harass and extort vulnerable teens into physically harming themselves and others.
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In September 2023, a Russian ransomware group known as ALPHV/Black Cat claimed credit for an intrusion at the MGM Resorts hotel chain that quickly brought MGM’s casinos in Las Vegas to a standstill. While MGM was still trying to evict the intruders from its systems, an individual who claimed to have firsthand knowledge of the hack contacted multiple media outlets to offer interviews about how it all went down.
One account of the hack came from a 17-year-old in the United Kingdom, who told reporters the intrusion began when one of the English-speaking hackers phoned a tech support person at MGM and tricked them into resetting the password for an employee account.
The security firm CrowdStrike dubbed the group “Scattered Spider,” a recognition that the MGM hackers came from different cliques scattered across an ocean of Telegram and Discord servers dedicated to financially-oriented cybercrime.
Collectively, this archipelago of crime-focused chat communities is known as “The Com,” and it functions as a kind of distributed cybercriminal social network that facilitates instant collaboration.
But mostly, The Com is a place where cybercriminals go to boast about their exploits and standing within the community, or to knock others down a peg or two. Top Com members are constantly sniping over who pulled off the most impressive heists, or who has accumulated the biggest pile of stolen virtual currencies.
And as often as they extort victim companies for financial gain, members of The Com are trying to wrest stolen money from their cybercriminal rivals — often in ways that spill over into physical violence in the real world.
CrowdStrike would go on to produce and sell Scattered Spider action figures, and it featured a life-sized Scattered Spider sculpture at this year’s RSA Security Conference in San Francisco.
But marketing security products and services based on specific cybercriminal groups can be tricky, particularly if it turns out that robbing and extorting victims is by no means the most abhorrent activity those groups engage in on a daily basis.
KrebsOnSecurity examined the Telegram user ID number of the account that offered media interviews about the MGM hack — which corresponds to the screen name “@Holy” — and found the same account was used across a number of cybercrime channels that are entirely focused on extorting young people into harming themselves or others, and recording the harm on video.
HOLY NAZI
Holy was known to possess multiple prized Telegram usernames, including @bomb, @halo, and @cute, as well as one of the highest-priced Telegram usernames ever put up for sale: @nazi.
In one post on a Telegram channel dedicated to youth extortion, this same user can be seen asking if anyone knows the current Telegram handles for several core members of 764, an extremist group known for victimizing children through coordinated online campaigns of extortion, doxing, swatting and harassment.
People affiliated with harm groups like 764 will often recruit new members by lurking on gaming platforms, social media sites and mobile applications that are popular with young people, including Discord, Minecraft, Roblox, Steam, Telegram, and Twitch.
“This type of offence usually starts with a direct message through gaming platforms and can move to more private chatrooms on other virtual platforms, typically one with video enabled features, where the conversation quickly becomes sexualized or violent,” warns a recent alert from the Royal Canadian Mounted Police (RCMP) about the rise of sextortion groups on social media channels.
“One of the tactics being used by these actors is sextortion, however, they are not using it to extract money or for sexual gratification,” the RCMP continued. “Instead they use it to further manipulate and control victims to produce more harmful and violent content as part of their ideological objectives and radicalization pathway.”
The 764 network is among the most populated harm communities, but there are plenty more. Some of the largest such known groups include CVLT, Court, Kaskar, Leak Society, 7997, 8884, 2992, 6996, 555, Slit Town, 545, 404, NMK, 303, and H3ll.
In March, a consortium of reporters from Wired, Der Spiegel, Recorder and The Washington Post examined millions of messages across more than 50 Discord and Telegram chat groups.
“The abuse perpetrated by members of com groups is extreme,” Wired’s Ali Winston wrote. “They have coerced children into sexual abuse or self-harm, causing them to deeply lacerate their bodies to carve ‘cutsigns’ of an abuser’s online alias into their skin.” The story continues:
“Victims have flushed their heads in toilets, attacked their siblings, killed their pets, and in some extreme instances, attempted or died by suicide. Court records from the United States and European nations reveal participants in this network have also been accused of robberies, in-person sexual abuse of minors, kidnapping, weapons violations, swatting, and murder.”
“Some members of the network extort children for sexual pleasure, some for power and control. Some do it merely for the kick that comes from manipulation. Others sell the explicit CSAM content produced by extortion on the dark web.”
KrebsOnSecurity has learned Holy is the 17-year-old who was arrested in July 2024 by the U.K.’s West Midlands Police as part of a joint investigation with the FBI into the MGM hack.
Early in their cybercriminal career (as a 15-year-old), @Holy went by the handle “Vsphere,” and was a proud member of the LAPSUS$ cybercrime group. Throughout 2022, LAPSUS$ would hack and social engineer their way into some of the world’s biggest technology companies, including EA Games, Microsoft, NVIDIA, Okta, Samsung, and T-Mobile.
JUDISCHE/WAIFU
Another timely example of the overlap between harm communities and top members of The Com can be found in a group of criminals who recently stole obscene amounts of customer records from users of the cloud data provider Snowflake.
At the end of 2023, malicious hackers figured out that many major companies have uploaded massive amounts of valuable and sensitive customer data to Snowflake servers, all the while protecting those Snowflake accounts with little more than a username and password (no multi-factor authentication required). The group then searched darknet markets for stolen Snowflake account credentials, and began raiding the data storage repositories used by some of the world’s largest corporations.
Among those that had data exposed in Snowflake was AT&T, which disclosed in July that cybercriminals had stolen personal information and phone and text message records for roughly 110 million people — nearly all its customers.
A report on the extortion group from the incident response firm Mandiant notes that Snowflake victim companies were privately approached by the hackers, who demanded a ransom in exchange for a promise not to sell or leak the stolen data. All told, more than 160 organizations were extorted, including TicketMaster, Lending Tree, Advance Auto Parts and Neiman Marcus.
On May 2, 2024, a user by the name “Judische” claimed on the fraud-focused Telegram channel Star Chat that they had hacked Santander Bank, one of the first known Snowflake victims. Judische would repeat that claim in Star Chat on May 13 — the day before Santander publicly disclosed a data breach — and would periodically blurt out the names of other Snowflake victims before their data even went up for sale on the cybercrime forums.
A careful review of Judische’s account history and postings on Telegram shows this user is more widely known under the nickname “Waifu,” an early moniker that corresponds to one of the more accomplished SIM-swappers in The Com over the years.
In a SIM-swapping attack, the fraudsters will phish or purchase credentials for mobile phone company employees, and use those credentials to redirect a target’s mobile calls and text messages to a device the attackers control.
Several channels on Telegram maintain a frequently updated leaderboard of the 100 richest SIM-swappers, as well as the hacker handles associated with specific cybercrime groups (Waifu is ranked #24). That leaderboard has long included Waifu on a roster of hackers for a group that called itself “Beige.”
Beige members were implicated in two stories published here in 2020. The first was an August 2020 piece called Voice Phishers Targeting Corporate VPNs, which warned that the COVID-19 epidemic had brought a wave of voice phishing or “vishing” attacks that targeted work-from-home employees via their mobile devices, and tricked many of those people into giving up credentials needed to access their employer’s network remotely.
Beige group members also have claimed credit for a breach at the domain registrar GoDaddy. In November 2020, intruders thought to be associated with the Beige Group tricked a GoDaddy employee into installing malicious software, and with that access they were able to redirect the web and email traffic for multiple cryptocurrency trading platforms.
The Telegram channels that Judische and his related accounts frequented over the years show this user divides their time between posting in SIM-swapping and cybercrime cashout channels, and harassing and stalking others in harm communities like Leak Society and Court.
Mandiant has attributed the Snowflake compromises to a group it calls “UNC5537,” with members based in North America and Turkey. KrebsOnSecurity has learned Judische is a 26-year-old software engineer in Ontario, Canada.
Sources close to the investigation into the Snowflake incident tell KrebsOnSecurity the UNC5537 member in Turkey is John Erin Binns, an elusive American man indicted by the U.S. Department of Justice (DOJ) for a 2021 breach at T-Mobile that exposed the personal information of at least 76.6 million customers.
Binns is currently in custody in a Turkish prison and fighting his extradition. Meanwhile, he has been suing almost every federal agency and agent that contributed investigative resources to his case.
In June 2024, a Mandiant employee told Bloomberg that UNC5537 members have made death threats against cybersecurity experts investigating the hackers, and that in one case the group used artificial intelligence to create fake nude photos of a researcher to harass them. Continue reading
