Malware believe to be the source of the data dump

Jun 9, 2016 10:10 GMT  ·  By

An unnamed hacker is selling over 32 million Twitter cleartext passwords on the Dark Web for only 10 Bitcoin (~$5,800). Twitter has not released an official statement on this matter yet.

LeakedSource, the company that has obtained the data thanks to a benefactor, says that there are 32,888,300 records included in the data dump, and not 71 million, as the hacker is claiming.

The company adds that the data includes entries with a recent timestamp, but does not believe Twitter got hacked.

Credentials most likely came from a keylogger or password dumper

Based on the evidence found in the way the credentials were stored, LeakedSource believes the source of this leak to be from malware that's capable of dumping passwords from Internet browsers, or by logging keystrokes.

Its researchers reached this conclusion after analyzing some user entries that instead of a password had entries such as "null" or "< blank >."

These are the standard formats used in browsers like Chrome and Firefox when the user sets their browser to remember and store passwords, but during a login attempt, they hit Enter without writing a password, creating a blank entry.

"The join dates of some users with uncrackable (yet plaintext) passwords were recent. There is no way that Twitter stores passwords in plaintext in 2014 for example," the company's experts explain today.

Russian users were the hardest hit

Furthermore, LeakedSource says that the top email domains are from Russian services, leading them to believe it was a malware campaign targeting Russian users mainly.

Over the weekend, Mark Zuckerberg had his Twitter and Pinterest accounts hacked. LeakedSource says that this was not the source of the hack since his username or email was not included in the 32 million credentials dump.

Previously, hackers had been selling data obtained from hacking services such as MySpace (427,484,128 records), LinkedIn (167,370,940 records), Tumblr (65,469,298 records), VK.com (100,544,934 records).

Below is LeakedSource's breakdown of the leaked data, with a list of top 25 most popular passwords and top 25 most popular email domains.  

Rank Password Frequency
Top 25 Twitter passwords included in the data dump
1 123456 120,417
2 123456789 32,775
3 qwerty 22,770
4 password 17,471
5 1234567 14,401
6 1234567890 13,799
7 12345678 13,380
8 123321 13,161
9 111111 12,138
10 12345 11,239
11 123123 11,099
12 9-11-1961 10,444
13 9111961 10,231
14 000000 10,124
15 666666 9,264
16 555555 8,586
17 1q2w3e4r5t 8,386
18 654321 8,358
19 1234 8,257
20 gfhjkm 7,773
21 7777777 7,659
22 222222 6,696
23 cepetsugih 6,603
24 777777 6,539
25 999999 6,428

Rank Email Domain Frequency
Top 25 Domains included in the Twitter data dump
1 @mail.ru 5,028,220
2 @yahoo.com 4,714,314
3 @hotmail.com 4,520,434
4 @gmail.com 3,302,205
5 @yandex.ru 1,020,757
6 @aol.com 586,661
7 @rambler.ru 428,084
8 @bk.ru 374,855
9 @list.ru 291,403
10 @inbox.ru 260,957
11 @hotmail.fr 196,206
12 @hotmail.co.uk 193,357
13 @msn.com 188,220
14 @live.com 163,167
15 @comcast.net 145,737
16 @yahoo.co.uk 104,183
17 @ymail.com 99,358
18 @yahoo.fr 85,964
19 @sbcglobal.net 84,830
20 @ukr.net 78,879
21 @yahoo.co.in 72,953
22 @web.de 67,010
23 @yahoo.co.id 62,247
24 @libero.it 60,294
25 @ya.ru 57,080
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