On October 28th, a data breach broker created a new topic on a hacker forum to sell the stolen user databases for seventeen companies.
By Lawrence Abrams
A threat actor is selling account databases containing an aggregate total of 34 million user records that they claim were stolen from seventeen companies during data breaches.
On October 28th, a data breach broker created a new topic on a hacker forum to sell the stolen user databases for seventeen companies.
When asked how the hacker gained access to the various sites, the seller stated, “Not sure if he want to disclose.”
Stolen databases are typically sold first in private sales, like those listed above, with previous ranging from $500, as seen in the Zoosk data breach, to $100,000 for the Wattpad database.
After some time, it is common for the stolen databases to be released for free on hacker forums to increase a threat actor’s ‘street cred.’
Companies allegedly breached in 2020
According to the data breach broke, all of the seventeen databases being sold were obtained in 2020, with the largest breach being Geekie.com.br with 8.1 million records. The most well-known affected company is Singapore’s RedMart that exposed 1.1 million rec
The seller told BleepingComputer that they are selling the RedMart database for $1,500.
None of these companies have previously reported recent data breaches prior to this week.
After BleepingComputer contacted all affected companies, only Red Mart disclosed a data breach yesterday, and Wongnai.com told Bleeping Computer that they are investigating the incident.
“Thanks for your inquiry, we were aware of this incident last night (Bangkok time) and our tech team have been investigating this matter,” Wongnai emailed BleepingComputer.com.
According to the seller, the following information is exposed per breach:
- Redmart.lazada.sg: emails, SHA1 hashed passwords, mailing and billing addresses, full name, phone numbers, partial credit cards numbers and exp dates
- Everything5pounds.com: emails, hashed passwords, name, gender, phone number
- Geekie.com.br: emails, bcrypt-sha256/sha512 hashed passwords, usernames, names, DoB, gender, mobile phone number, Brazilian CPF numbers
- Cermati.com: – emails, password bcrypt, name, address, phone, revenue, bank, tax number, id number, gender, job, company, mothers maiden name
- Clip.mx: email, phone
- Katapult.com: email, password pbkdf2-sha256/unknown, name
- Eatigo.com: email, password md5, name, phone, gender, facebook id & token
- Wongnai.com: email, password md5, ip, facebook & twitter id, names, birthdate, phone, zip
- Toddycafe.com: email, password unknown, name, phone, address
- Game24h.vn: email, password md5, username, birthdate, name
- Wedmegood.com: email, password sha512, phone, facebook id
- W3layouts.com: – email, password bcrypt, ip, country, city, state, phone, name
- Apps-builder.com: email, password md5crypt, ip, name, country
- Invideo.io: email, password bcrypt, name, phone
- Coupontools.com: email, password bcrypt, name, phone, gender, birthdate
- Athletico.com.br: email, password md5, name, cpf, birthdate
- Fantasycruncher.com: email, password bcrypt/sha1, username, ip
From the samples of each database seen by Bleeping Computer, we have confirmed that exposed email addresses correspond to accounts for thirteen of the allegedly seventeen breached services. We could not verify accounts for Clip.mx, Katapult, Coupon Tools, or Aps-builder.com.
The combined databases expose over 34 million user records. While a password is not included in every record, for example, Clip.mx, there is still useful information disclosed in each database that threat actors can use.
Do you have an account at these sites?
BleepingComputer has contacted each of the companies being sold online and has only heard from Wongnai at this time.
Unfortunately, this lack of response is common when reporting data breaches, and a few weeks later, if not months later, the companies will eventually disclose the breach.
To be safe, if you are a user of one of these sites, you should assume that they have been breached and immediately change your password.
If you use the same password at other sites, you should also change the password at those sites to a unique and strong one that you only use for that site.
Using unique passwords at every site you have an account prevents a data breach at one site from affecting you at other websites you use.
It is suggested that you use a password manager to help you keep track of unique and robust passwords at every site.
Originally published at Bleeping computer