Ransomware Research

About BTCWare-PayDay


BTCWare-PayDay was first discovered in October 2017 in enterprise cloud environments.

Name BTCWare-PayDay
First Seen October 2017


To better understand BTCWare-PayDay, we can trace it’s origins. Below is a snapshot of BTCWare-PayDay’s genealogy.

BTCWare » BTCWare-PayDay

Behavior of BTCWare-PayDay

BTCWare-PayDay is known to target specific file types. Below are all known file types that BTCWare-PayDay is known to infect.

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

Learn More

Characteristics of BTCWare-PayDay

Here are some of the unique characteristics that are helpful to know about BTCWare-PayDay.


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 BTCWare-PayDay ransomware is known to change.

Suffixes.payday, .shadow, .wallet

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 BTCWare-PayDay.

File Name!! RETURN FILES !!.txt
File Namepayday.hta
File Name! How Decrypt Files.txt


These are the names of the executables that contain the undetonated ransomware payload for BTCWare-PayDay.

ExecutablesPayday.ex_, payday.exe, payload.exe, sample-unpacked, isso32.exe, 1002-b3f8a70321538b985d260702a390a5c903d12945, 1002-ec5a4c6cd4281961dc51bbd742fbeababfd7248f, machine.exe, .exe, cryptomafia@tuta.io.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 BTCWare-PayDay.

External Pages
  • mailto:keyforyou@tuta.ioисп
  • mailto:keyforyou@tuta.io
  • mailto:aversia@tuta.io
  • mailto:payday@cryptmaster.info
  • mailto:payday@cock.lu
  • mailto:checkzip@india.com
  • mailto:lockers@tutamail.com
  • mailto:car1333as@gmail.com
  • mailto:helper05@cock.li
  • mailto:chukabra@tuta.io
  • mailto:gh0stcrypt@tuta.io
  • mailto:whitedevil@tutanota.de
  • mailto:paydayz@cock.li
  • mailto:kekin@cock.li
  • mailto:arkana@tuta.io
  • mailto:shadowzone@cock.li
  • mailto:shadowzone@india.com
  • mailto:isso32@tutanota.com
  • mailto:slaker@india.com
  • mailto:cryptomafia@tuta.io
  • mailto:decrypt@btcdecrypt.top
  • mailto:ap0calypse@india.com
  • mailto:erwind@tuta.io
  • mailto:oddy@tuta.io
  • mailto:payday@rape.lol
  • mailto:unlocksupp@airmail.cc
  • mailto:bm-2ctvhx6b7ryhj9ggkzn6ytubpbbq3lhrkz@bitmessage.ch
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