General

  • Target

    bc0ed3e73b8d1fdc839f2e8ed3578ca3221dba4eb984e581cb00dfb4cdfb7d49.exe

  • Size

    34KB

  • Sample

    210402-bgtkrdgyex

  • MD5

    67d32736c5e1300c21329f956da836ab

  • SHA1

    15c705cc01650bbf0db7bd0229edadb5f4ee9cf7

  • SHA256

    bc0ed3e73b8d1fdc839f2e8ed3578ca3221dba4eb984e581cb00dfb4cdfb7d49

  • SHA512

    33ec980170d703e43d67dbad2c1fef5855020291e139aa7e7bb1c96d446d27b7f187910df10bf183de86b882ffdd9dbc30715eafe74ae24edba4341fbcfa7eb8

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\readme-warning.txt

Family

makop

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted and now have the "dark" extension. The file structure was not damaged, we did everything possible so that this could not happen. .2. Q: How to recover files? A: If you wish to decrypt your files you will need to pay in bitcoins. .3. Q: What about guarantees? A: Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will cooperate with us. Its not in our interests. To check the ability of returning files, you can send to us any 2 files with SIMPLE extensions(jpg,xls,doc, etc... not databases!) and low sizes(max 1 mb), we will decrypt them and send back to you. That is our guarantee. .4. Q: How to contact with you? A: You can write us to our mailbox: revilsupport@privatemail.com .5. Q: How will the decryption process proceed after payment? A: After payment we will send to you our scanner-decoder program and detailed instructions for use. With this program you will be able to decrypt all your encrypted files. .6. Q: If I don�t want to pay bad people like you? A: If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause only we have the private key. In practice - time is much more valuable than money. :::BEWARE::: DON'T try to change encrypted files by yourself! If you will try to use any third party software for restoring your data or antivirus solutions - please make a backup for all encrypted files! Any changes in encrypted files may entail damage of the private key and, as result, the loss all data.
Emails

revilsupport@privatemail.com

Targets

    • Target

      bc0ed3e73b8d1fdc839f2e8ed3578ca3221dba4eb984e581cb00dfb4cdfb7d49.exe

    • Size

      34KB

    • MD5

      67d32736c5e1300c21329f956da836ab

    • SHA1

      15c705cc01650bbf0db7bd0229edadb5f4ee9cf7

    • SHA256

      bc0ed3e73b8d1fdc839f2e8ed3578ca3221dba4eb984e581cb00dfb4cdfb7d49

    • SHA512

      33ec980170d703e43d67dbad2c1fef5855020291e139aa7e7bb1c96d446d27b7f187910df10bf183de86b882ffdd9dbc30715eafe74ae24edba4341fbcfa7eb8

    • Makop

      Ransomware family discovered by @VK_Intel in early 2020.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Matrix ATT&CK v6

Execution

Command-Line Interface

1
T1059

Defense Evasion

File Deletion

3
T1107

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

3
T1490

Tasks