Ransomware Research

CryptFIle2

CryptFIle2 was first discovered in March 2016 in enterprise cloud environments.

Name

CryptFIle2

 

First Seen

March 2016

Targeting

Behavior of CryptFIle2

CryptFIle2 is known to target specific file types. Below are all known file types that CryptFIle2 is known to infect.

In some cases, ransomware will update the modified date, when it encrypts files. CryptFIle2 updates the last modified date of the file it targets.

Details

Characteristics of CryptFIle2

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 CryptFIle2 ransomware is known to change.

Suffixes

.scl, .rscl, .rmd

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 CryptFIle2.

Type

File Name

Location

file

HELP_DECRYPT_YOUR_FILES.HTML

EveryFolder

file

HELP_DECRYPT_YOUR_FILES.TXT

EveryFolder

file

# HELP_DECRYPT_YOUR_FILES #.TXT

EveryFolder

file

HELP_YOUR_FILES.HTML

EveryFolder

file

HELP_YOUR_FILES.TXT

EveryFolder

Executables

These are the names of the executables that contain the undetonated ransomware payload for CryptFIle2.

Executables

ChromeFlashPlayer_81ba016a5dfcb0db.exe, Subpoena.exe, AdobeFlashPlayer_dcf6d65e5dfcb0db.exe, AdobeFlashPlayer_8428d05f5dfcb0db.exe, FlashPlayerPlugin_5dfcb0db_d36f4e1e.exe, FlashPlayerPlugin_ebcf2f2_f8d21cc4.exe, adb.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 CryptFIle2.

External Pages

  • mailto:enc2@usa.com
  • mailto:enc2@dr.com
  • mailto:xerx@usa.com
  • mailto:pchelp@post.com
  • mailto:rscl@dr.com
  • mailto:rscl@usa.com
  • mailto:enc9@dr.com
  • mailto:enc9@usa.com
  • mailto:westbors@oath.com
  • mailto:gobas@inorbit.com
  • mailto:enc10@dr.com
  • mailto:enc10@usa.com
  • mailto:enc8@dr.com
  • mailto:enc8@usa.com
  • mailto:enc5@usa.com
  • mailto:enc5@dr.com
  • mailto:enc5r@usa.com
  • mailto:enc5r@dr.com
  • mailto:enc7@usa.com
  • mailto:enc7@dr.com
  • mailto:zoomz@dr.com
  • mailto:corpdec@null.net
  • mailto:corpdec@cyberservices.com
  • mailto:crts@dr.com

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