Overview

overview

10

Static

static

3

2016-11-21...e2.exe

windows10-2004-x64

10

2016-11-21...e2.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    2016-11-21-2nd-run-EITest-Rig-standard-payload-CryptFile2.exe
  • Size 81KB
  • Sample250709-vw28ea1yes
  • SHA256 f2dbf29985a759e73c6a515422e218e6b0a1a844a327917428a1f9a1248f2320
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
cryptomixdefense_evasiondiscoveryexecutionimpactpersistenceransomware

Malware Config

Extracted

Path

  • C:\PerfLogs\# HELP_DECRYPT_YOUR_FILES #.TXT

Ransom Note
  • NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files protected by a strong encryption with RSA-2048. More information about the encryption keys using RSA-2048 can be found here: https://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-2048 KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start send email now for more specific instructions! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions: Contact us by email only, send us an email along with your ID number and wait for further instructions. Our specialist will contact you within 24 hours. For you to be sure, that we can decrypt your files - you can send us a single encrypted file and we will send you back it in a decrypted form. This will be your guarantee. Please do not waste your time! You have 72 hours only! After that The Main Server will double your price! So right now You have a chance to buy your individual private SoftWare with a low price! E-MAIL1: [email protected] E-MAIL2: [email protected] YOUR_ID: 1c9b74ea87d6b515

Extracted

Path

  • C:\Users\# HELP_DECRYPT_YOUR_FILES #.TXT

Ransom Note
  • NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files protected by a strong encryption with RSA-2048. More information about the encryption keys using RSA-2048 can be found here: https://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-2048 KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start send email now for more specific instructions! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions: Contact us by email only, send us an email along with your ID number and wait for further instructions. Our specialist will contact you within 24 hours. For you to be sure, that we can decrypt your files - you can send us a single encrypted file and we will send you back it in a decrypted form. This will be your guarantee. Please do not waste your time! You have 72 hours only! After that The Main Server will double your price! So right now You have a chance to buy your individual private SoftWare with a low price! E-MAIL1: [email protected] E-MAIL2: [email protected] YOUR_ID: 1c9b74ea4dc822d4

Targets

    • Target
      2016-11-21-2nd-run-EITest-Rig-standard-payload-CryptFile2.exe
    • Size 81KB
    • SHA256 f2dbf29985a759e73c6a515422e218e6b0a1a844a327917428a1f9a1248f2320
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    cryptomixdefense_evasiondiscoveryexecutionimpactpersistenceransomware

    • CryptoMix

      Ransomware first seen in 2016 which has returned with new variants in 2019.

      ransomwarecryptomix

    • Cryptomix family

      cryptomix

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks