Ransomware Research

CryptoMix

CryptoMix was first discovered in April 2016 in enterprise cloud environments.

Name

CryptoMix

 

First Seen

April 2016

Targeting

Behavior of CryptoMix

CryptoMix is known to target specific file types. Below are all known file types that CryptoMix is known to infect.

In some cases, ransomware will update the modified date, when it encrypts files. CryptoMix updates the last modified date of the file it targets.

Details

Characteristics of CryptoMix

Suffixes

Some ransomware will change or append a suffix to the end of the file after they are encrypted, including changing the extension of a file. Here are some of the possible suffixes that CryptoMix ransomware is known to change.

Suffixes

.code, .lesli, .rdmk, .CK, .ZERO, .DG, .MOLE, .MOLE03, .MOLE66, .CNC

Ransomware Notes

Not all ransomware leaves a note. However, some ransomware leaves the infected party instructions on what the user should do to get rid of the ransomware, or satisfy the ransom. This often involves transferring money, often bitcoin or another cryptocurrency to a designated wallet.

Below are the type(s) of notes, content, and typical locations where Elastio has found ransom notes from CryptoMix.

Type

File Name

Location

file

_HELP_INSTRUCTIONS_.TXT

EveryFolder

file

INSTRUCTION RESTORE FILE.TXT

EveryFolder

file

INSTRUCTION_FOR_HELPING_FILE_RECOVERY.TXT

EveryFolder

file

_HELP_INSTRUCTION.TXT

EveryFolder

Executables

These are the names of the executables that contain the undetonated ransomware payload for CryptoMix.

Executables

CTARX.exe, AdobeFlashPlayer_5bfd178c5dfcb0db.exe, adobeflashplayer_d460ffbf1c9b74e8.exe, AdobeFlashPlayer_58fc97331c9b74ea.exe, AdobeFlashPlayer_6e166b785dfcb0db.exe, HydraCrypt, myfile.exe, Backup Instruction.exe, 353E.tmp, Microsoft Decode Ransomware, radEF352.tmp.exe, MS SecurityFiles., Spy Security SoftWare_5dfcb0db_9dd17731.exe, Security SoftWare Shield, Microsoft Decryptor Ransomware.exe, build_2017-07-26_18-48.exe, BC1CFBB99D.exe, dumpedzero, Labs.exe, BC1C9B74EA.exe, RacePostings, MS SecurityFiles.exe, a.exe, pluginoffice.exe, mole.exe

External Pages

Ransomware often links to external pages such as payment pages, telegram contacts, etc. Below are some of the URLs Elastio has found to be associated with CryptoMix.

External Pages

  • mailto:xoomx@dr.com
  • mailto:xoomx@usa.com
  • mailto:supl0@post.com
  • mailto:supl0@oath.com
  • mailto:supl@post.com
  • mailto:supl@oath.com
  • mailto:supls@post.com
  • mailto:supls@oath.com
  • mailto:oceanm@engineer.com
  • mailto:oceanm@india.com
  • mailto:ck01@techmail.info
  • mailto:ck02@decoymail.com
  • mailto:ck03@protonmail.com
  • mailto:zero@hook.work
  • mailto:dg01@msgden.net
  • mailto:dg02@armormail.net
  • mailto:dg01@protonmail.com
  • http://supportxxgbefd7c.onion
  • http://supportjy2xvvdmx.onion
  • mailto:alpha2018a@aol.com
  • mailto:cnc01@msgden.net
  • mailto:cnc02@nerdmail.co
  • mailto:cnc03@protonmail.com

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