Analysis

  • max time kernel
    129s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    06-03-2022 05:52

General

  • Target

    c5ec4ced753e67fba6b0b4a720f5bb6611fbbaa6f74e9369193735d42258a0c0.exe

  • Size

    901KB

  • MD5

    762d680bba4270694d5487e7d4f0a014

  • SHA1

    97e37c21b1ec5b0332e8cb09ed0535b7c6516bdf

  • SHA256

    c5ec4ced753e67fba6b0b4a720f5bb6611fbbaa6f74e9369193735d42258a0c0

  • SHA512

    6628da111ce1a5bc1a4e85fb3c250b9e28bee432643c3c3b238dcca28c45e536e938e4f653293e47240908722e49dcda4aa37fcc6259b4661b0c85537ee9a76a

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\281061251\readme-warning.txt

Family

makop

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

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 51 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c5ec4ced753e67fba6b0b4a720f5bb6611fbbaa6f74e9369193735d42258a0c0.exe
    "C:\Users\Admin\AppData\Local\Temp\c5ec4ced753e67fba6b0b4a720f5bb6611fbbaa6f74e9369193735d42258a0c0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1408
    • C:\Users\Admin\AppData\Local\Temp\c5ec4ced753e67fba6b0b4a720f5bb6611fbbaa6f74e9369193735d42258a0c0.exe
      "{path}"
      2⤵
        PID:4904
      • C:\Users\Admin\AppData\Local\Temp\c5ec4ced753e67fba6b0b4a720f5bb6611fbbaa6f74e9369193735d42258a0c0.exe
        "{path}"
        2⤵
          PID:812
        • C:\Users\Admin\AppData\Local\Temp\c5ec4ced753e67fba6b0b4a720f5bb6611fbbaa6f74e9369193735d42258a0c0.exe
          "{path}"
          2⤵
            PID:1312
          • C:\Users\Admin\AppData\Local\Temp\c5ec4ced753e67fba6b0b4a720f5bb6611fbbaa6f74e9369193735d42258a0c0.exe
            "{path}"
            2⤵
            • Adds Run key to start application
            • Drops file in Program Files directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:984
            • C:\Users\Admin\AppData\Local\Temp\c5ec4ced753e67fba6b0b4a720f5bb6611fbbaa6f74e9369193735d42258a0c0.exe
              "C:\Users\Admin\AppData\Local\Temp\c5ec4ced753e67fba6b0b4a720f5bb6611fbbaa6f74e9369193735d42258a0c0.exe" n984
              3⤵
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:3020
              • C:\Users\Admin\AppData\Local\Temp\c5ec4ced753e67fba6b0b4a720f5bb6611fbbaa6f74e9369193735d42258a0c0.exe
                "{path}"
                4⤵
                  PID:3184
              • C:\Windows\system32\cmd.exe
                "C:\Windows\system32\cmd.exe"
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:2352
                • C:\Windows\system32\vssadmin.exe
                  vssadmin delete shadows /all /quiet
                  4⤵
                  • Interacts with shadow copies
                  PID:2632
                • C:\Windows\system32\wbadmin.exe
                  wbadmin delete catalog -quiet
                  4⤵
                  • Deletes backup catalog
                  PID:4184
                • C:\Windows\System32\Wbem\WMIC.exe
                  wmic shadowcopy delete
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3808
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon
            1⤵
            • Suspicious use of NtCreateUserProcessOtherParentProcess
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1336
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:5012
          • C:\Windows\system32\wbengine.exe
            "C:\Windows\system32\wbengine.exe"
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:696
          • C:\Windows\System32\vdsldr.exe
            C:\Windows\System32\vdsldr.exe -Embedding
            1⤵
              PID:4652
            • C:\Windows\System32\vds.exe
              C:\Windows\System32\vds.exe
              1⤵
              • Checks SCSI registry key(s)
              PID:224

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/984-137-0x0000000000400000-0x000000000041D000-memory.dmp

              Filesize

              116KB

            • memory/984-139-0x0000000000400000-0x000000000041D000-memory.dmp

              Filesize

              116KB

            • memory/1408-130-0x0000000000D40000-0x0000000000E28000-memory.dmp

              Filesize

              928KB

            • memory/1408-131-0x0000000008280000-0x0000000008824000-memory.dmp

              Filesize

              5.6MB

            • memory/1408-132-0x0000000007CD0000-0x0000000007D62000-memory.dmp

              Filesize

              584KB

            • memory/1408-133-0x00000000032F0000-0x00000000032FA000-memory.dmp

              Filesize

              40KB

            • memory/1408-134-0x0000000074AC0000-0x0000000075270000-memory.dmp

              Filesize

              7.7MB

            • memory/1408-135-0x0000000003220000-0x00000000032B2000-memory.dmp

              Filesize

              584KB

            • memory/1408-136-0x000000000A580000-0x000000000A61C000-memory.dmp

              Filesize

              624KB

            • memory/3020-141-0x0000000074B60000-0x0000000075310000-memory.dmp

              Filesize

              7.7MB

            • memory/3020-142-0x0000000006F50000-0x00000000074F4000-memory.dmp

              Filesize

              5.6MB