Analysis

  • max time kernel
    166s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-04-2024 18:21

General

  • Target

    2cadd0ff146e1cdf1270894be4fb1523bfdcc7a31760e0ca5cfd9d8e6b525c21.exe

  • Size

    35KB

  • MD5

    6ad6c98f75c3133b94026c2fdd06a6f1

  • SHA1

    163dcb0b3da0c55dbbea71e55d47222c0162f650

  • SHA256

    2cadd0ff146e1cdf1270894be4fb1523bfdcc7a31760e0ca5cfd9d8e6b525c21

  • SHA512

    65ef60fdf4d986743cc60f4867d618aaf223513d2d61b6631226cdf1fd8e92168a1b2eee565d197716a7bc6718db093fc8020a20039a6041376cdd2d05ce2e12

  • SSDEEP

    768:XnO6+QwxSRYG1lcjR4Q+aKj+XzMogluDAnMNJxKMh:XZ+QXSG1SjRryo5AnIJxKa

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\scoped_dir4928_1573648347\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 (155) 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.

  • 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.

  • 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\2cadd0ff146e1cdf1270894be4fb1523bfdcc7a31760e0ca5cfd9d8e6b525c21.exe
    "C:\Users\Admin\AppData\Local\Temp\2cadd0ff146e1cdf1270894be4fb1523bfdcc7a31760e0ca5cfd9d8e6b525c21.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:4480
    • C:\Users\Admin\AppData\Local\Temp\2cadd0ff146e1cdf1270894be4fb1523bfdcc7a31760e0ca5cfd9d8e6b525c21.exe
      "C:\Users\Admin\AppData\Local\Temp\2cadd0ff146e1cdf1270894be4fb1523bfdcc7a31760e0ca5cfd9d8e6b525c21.exe" n4480
      2⤵
        PID:3136
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3764
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3316
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:2228
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:828
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3804 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3540
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3320
      • C:\Windows\system32\wbengine.exe
        "C:\Windows\system32\wbengine.exe"
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1184
      • C:\Windows\System32\vdsldr.exe
        C:\Windows\System32\vdsldr.exe -Embedding
        1⤵
          PID:3576
        • C:\Windows\System32\vds.exe
          C:\Windows\System32\vds.exe
          1⤵
          • Checks SCSI registry key(s)
          PID:376

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\scoped_dir4928_1573648347\readme-warning.txt

          Filesize

          1KB

          MD5

          dc2efdcacf6d44c2e5302da531f0c0a5

          SHA1

          ce8691c637f9756a86238e447e9208aaa94057f4

          SHA256

          72607ac142f470961d9cb22be5e9e24aa71fe55de2b635297cc38a95562f8991

          SHA512

          ef83f60a7504bbe7f212dad552b3ae602ad7269adf5bfc5d1c50185c28177b00eb75d361772aa1c2d6e1507b22b2a98fa43e8df792b026ddfdfece4d9ea9373b