test.bin.zip

General
Target

test.bin.zip

Size

169KB

Sample

210307-h9q3ttwqke

Score
10 /10
MD5

9ae60967e095a0c06f3e19f25d4dc29b

SHA1

b63452c2a9e86d53193f75fe32b0b367ca7dca1e

SHA256

ea91ad196aa6a700469ea4f7454a00dfce68869d284a24497a447383d789febe

SHA512

80ff1d788b253cf7d97d0565d123e6c09363348215e8b58d34410d790054560c37473ba7f5802a2445a283cdfe5196425aa4b02c4694b21ef135a559331a0ed0

Malware Config

Extracted

Path C:\Users\Admin\AppData\Local\Temp\048521667\readme-warning.txt
Family makop
Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted and now have the "vassago" 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: vassago0213@airmail.cc or vassago_0213@tutanota.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

vassago0213@airmail.cc

vassago_0213@tutanota.com

Targets
Target

test.bin

MD5

41a1fa524a93929a68b58064bb1f86f7

Filesize

281KB

Score
10 /10
SHA1

47f69f81ee8be286f28a3a37337ad711f71b17b3

SHA256

419f69ea6641f41f6f0ed44914ed3c8e9fcd0bd9b4ffcb720c60e3d682a9f78d

SHA512

39250ec6f09e97cd5cd593038510eb414b680f4b9d112b7f2ff9dc017566671f23100aa01404ace8ecedee3510d1ea1fd8284bacbac1872224f522ce653ffb2d

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
  • Legitimate hosting services abused for malware hosting/C2

    TTPs

    Web Service
  • Suspicious use of SetThreadContext

Related Tasks

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

              static1

              1/10

              behavioral1

              10/10

              behavioral2

              10/10

              behavioral3

              10/10