Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-04-2024 18:18

General

  • Target

    f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe

  • Size

    36KB

  • MD5

    d62a9ae1380402cc467cced405ba4aa0

  • SHA1

    dd8b78ffe6fafb29ab8e4422e5e7f3429150c8c3

  • SHA256

    f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6

  • SHA512

    2fe310be21c4e210956f9f0ebbeea2783a84e512292614af6c548701c41e559d9bec82c2f0cd2e08e52ef7d1cb1656449e1c96c9438ea3aeda0f5cf312713688

  • SSDEEP

    768:nHO6+QwxSRYG1lcjR4Q+aKj+XzMogluDAnMNJxKMO:n5+QXSG1SjRryo5AnIJxK5

Malware Config

Extracted

Path

C:\Program Files\Common Files\DESIGNER\readme-warning.txt

Family

makop

Ransom Note
::: Greetings ::: Little FAQ: .1. Q: Whats Happen? A: Your files have been encrypted and now have the "fair" 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] .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.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (8071) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe
    "C:\Users\Admin\AppData\Local\Temp\f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Users\Admin\AppData\Local\Temp\f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe
      "C:\Users\Admin\AppData\Local\Temp\f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe" n1364
      2⤵
        PID:1388
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2176
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:4856
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:4460
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2584
      • C:\Users\Admin\AppData\Local\Temp\f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe
        "C:\Users\Admin\AppData\Local\Temp\f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe" n1364
        2⤵
          PID:1128
        • C:\Users\Admin\AppData\Local\Temp\f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe
          "C:\Users\Admin\AppData\Local\Temp\f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe" n1364
          2⤵
            PID:3872
          • C:\Users\Admin\AppData\Local\Temp\f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe
            "C:\Users\Admin\AppData\Local\Temp\f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe" n1364
            2⤵
              PID:280
            • C:\Users\Admin\AppData\Local\Temp\f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe
              "C:\Users\Admin\AppData\Local\Temp\f6b60839de0ac933f0788bc1e12dee859950010f938a05544ad51c424954b9a6.exe" n1364
              2⤵
                PID:2660
            • C:\Windows\system32\vssvc.exe
              C:\Windows\system32\vssvc.exe
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:3980
            • C:\Windows\system32\wbengine.exe
              "C:\Windows\system32\wbengine.exe"
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:2872
            • C:\Windows\System32\vdsldr.exe
              C:\Windows\System32\vdsldr.exe -Embedding
              1⤵
                PID:396
              • C:\Windows\System32\vds.exe
                C:\Windows\System32\vds.exe
                1⤵
                • Checks SCSI registry key(s)
                PID:2412

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Program Files\Common Files\DESIGNER\readme-warning.txt

                Filesize

                1KB

                MD5

                dc2efdcacf6d44c2e5302da531f0c0a5

                SHA1

                ce8691c637f9756a86238e447e9208aaa94057f4

                SHA256

                72607ac142f470961d9cb22be5e9e24aa71fe55de2b635297cc38a95562f8991

                SHA512

                ef83f60a7504bbe7f212dad552b3ae602ad7269adf5bfc5d1c50185c28177b00eb75d361772aa1c2d6e1507b22b2a98fa43e8df792b026ddfdfece4d9ea9373b