Overview

overview

10

Static

static

129a0f0f4d...8d.ps1

windows7_x64

8

129a0f0f4d...8d.ps1

windows10-2004_x64

10

Analysis

  • max time kernel
    173s
  • max time network
    192s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    01-02-2022 01:36

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General

  • Target

    129a0f0f4dd667e3ecbcc252b890f306eb041ad0295cb1511343c307c12a658d.ps1

  • Size

    5.1MB

  • MD5

    25c0fde038e01fe84fd3df69c99e60a1

  • SHA1

    147c1adc615daa93e84a5a9210ccc14ae86f6c55

  • SHA256

    129a0f0f4dd667e3ecbcc252b890f306eb041ad0295cb1511343c307c12a658d

  • SHA512

    8d666575c6570f5b128faf30d30f506259eda1907829bcf449c2407ea3aa943de46933bb3822b5fcddb25648ad8cc6f4d2077b29e82cdb4a6f423a5e1acc9fae

Score
10/10
netwalkerransomware

Malware Config

Extracted

Path

C:\8E6C12-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .8e6c12 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_8e6c12: RNPDIRv8ksysNtzHv3F1NRUfRycGsxZlasJXbDpcJlwZRDzjwz qHcyLAcNqlLVo26ZKz1iNz90pl/9r1RfQjW3klWO+4NnYxTAuG pJ1h+0epWBTxBpneFz+nnGszK6FrmsbBcz2qdhshHN6q0KUvXE rKNblogbk04OyjXxrOB9fbpXseDQxZ+zmwA7VPzwgblkadrnKt VqNHcOrEIi3OAgfRSM5NMja9SIFeCNPF+PR1X2BGjGmrVdEmUZ gCeNSI+qUCfJELAkwbACqGd5neD0GrET1wT5YXww==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Signatures

  • Netwalker Ransomware

    Ransomware family with multiple versions. Also known as MailTo.

    ransomwarenetwalker
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 47 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Modifies extensions of user files
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2424
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\129a0f0f4dd667e3ecbcc252b890f306eb041ad0295cb1511343c307c12a658d.ps1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3008
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\m4yn2oqq\m4yn2oqq.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3620
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES5E55.tmp" "c:\Users\Admin\AppData\Local\Temp\m4yn2oqq\CSC92C959784BA4C80A76B7354A119FA15.TMP"
          4⤵
            PID:3708
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
          "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\a0sqxbie\a0sqxbie.cmdline"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3888
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES6A7A.tmp" "c:\Users\Admin\AppData\Local\Temp\a0sqxbie\CSC28EF04F382D247F5A5BE479DE4BF325F.TMP"
            4⤵
              PID:2564
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:6744

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads

      • memory/2424-152-0x0000000000B70000-0x0000000000B8B000-memory.dmp

        Filesize

        108KB

        Download

      • memory/3008-139-0x0000024CA5B86000-0x0000024CA5B88000-memory.dmp

        Filesize

        8KB

        Download

      • memory/3008-134-0x0000024CA5B80000-0x0000024CA5B82000-memory.dmp

        Filesize

        8KB

        Download

      • memory/3008-136-0x0000024CC1840000-0x0000024CC1862000-memory.dmp

        Filesize

        136KB

        Download

      • memory/3008-135-0x0000024CA5B83000-0x0000024CA5B85000-memory.dmp

        Filesize

        8KB

        Download

      • memory/3008-151-0x0000024CA5B88000-0x0000024CA5B89000-memory.dmp

        Filesize

        4KB

        Download