Fat32Formatter.exe

General
Target

Fat32Formatter.exe

Size

276KB

Sample

210126-tz8gsy7b9s

Score
10 /10
MD5

57bfa19c46f1b511836845dc3cf660f3

SHA1

a90e180b514f4cdd8a5db72b4d65c42c1fb1e389

SHA256

e85e974255245ba41d391acc207908eeddb5ec95285e5375496a89617c5fb843

SHA512

f3dce6d32e009000618c3f3dc0939e1bca21ad4bf3a1ae46a74fafcff54884d07be751dad610790db3e92c116a5878f76a8c7b5aaae892fef702ca912239d48a

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 "moloch" 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: agares_helpdesk@tutanota.com or agares@airmail.cc .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

agares_helpdesk@tutanota.com

agares@airmail.cc

Targets
Target

Fat32Formatter.exe

MD5

57bfa19c46f1b511836845dc3cf660f3

Filesize

276KB

Score
10 /10
SHA1

a90e180b514f4cdd8a5db72b4d65c42c1fb1e389

SHA256

e85e974255245ba41d391acc207908eeddb5ec95285e5375496a89617c5fb843

SHA512

f3dce6d32e009000618c3f3dc0939e1bca21ad4bf3a1ae46a74fafcff54884d07be751dad610790db3e92c116a5878f76a8c7b5aaae892fef702ca912239d48a

Tags

Signatures

  • Makop

    Description

    Ransomware family discovered by @VK_Intel in early 2020.

    Tags

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • Deletes shadow copies

    Description

    Ransomware often targets backup files to inhibit system recovery.

    Tags

    TTPs

    File Deletion Inhibit System Recovery
  • Deletes backup catalog

    Description

    Uses wbadmin.exe to inhibit system recovery.

    Tags

    TTPs

    Command-Line Interface File Deletion Inhibit System Recovery
  • Modifies extensions of user files

    Description

    Ransomware generally changes the extension on encrypted files.

    Tags

  • Loads dropped DLL

  • Reads user/profile data of web browsers

    Description

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

    Tags

    TTPs

    Data from Local System Credentials in Files
  • Adds Run key to start application

    Tags

    TTPs

    Registry Run Keys / Startup Folder Modify Registry
  • Legitimate hosting services abused for malware hosting/C2

    TTPs

    Web Service
  • Enumerates physical storage devices

    Description

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

    Tags

    TTPs

    System Information Discovery
  • Suspicious use of SetThreadContext

Related Tasks

MITRE ATT&CK Matrix
Command and Control
    Credential Access
    Exfiltration
      Initial Access
        Lateral Movement
          Privilege Escalation
            Tasks

            static1

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