Overview

overview

10

Static

static

BS.exe

windows7_x64

10

BS.exe

windows10_x64

10

BuildS.exe

windows7_x64

10

BuildS.exe

windows10_x64

10

READS.exe

windows7_x64

10

READS.exe

windows10_x64

10

baseus_nowin.exe

windows7_x64

10

baseus_nowin.exe

windows10_x64

10

rbs.exe

windows7_x64

10

rbs.exe

windows10_x64

10

scan.exe

windows7_x64

1

scan.exe

windows10_x64

1

Analysis

  • max time kernel
    156s
  • max time network
    172s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    20-10-2021 09:41

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General

  • Target

    baseus_nowin.exe

  • Size

    40KB

  • MD5

    ac64fa0e284f8717e24179768dedfa24

  • SHA1

    fe8da0dcb6ab930841a85d17fba208cab1bb39a5

  • SHA256

    98a668b3db762b0f9bd29a3d35d2f8b55b9922a4f968c1bcf0ef04e2c411f53f

  • SHA512

    b0d1049b85582c4f4503b76133b3cc6549e823a7af474281ad5772a3b0f8081713e7a7574929ca8876c48c0545a75285a82d4a3db11a5a491da3da3987f39ae3

Score
10/10
makopransomware

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\100759991\readme-warning.txt

Family

makop

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted and now have the "baseus" 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: [email protected] or [email protected] or [email protected] .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.

Signatures

  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

    ransomwaremakop
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\baseus_nowin.exe
    "C:\Users\Admin\AppData\Local\Temp\baseus_nowin.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2416
    • C:\Users\Admin\AppData\Local\Temp\baseus_nowin.exe
      "C:\Users\Admin\AppData\Local\Temp\baseus_nowin.exe" n2416
      2⤵
        PID:3364
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1632
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1020
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:2864
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3068
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3692
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1656
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:3984
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:1032

      Network

      MITRE ATT&CK Enterprise v6

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      Downloads