Overview

overview

10

Static

static

71768f2099...b0.ps1

windows7_x64

4

71768f2099...b0.ps1

windows10-2004_x64

10

Analysis

  • max time kernel
    154s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 13:36

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General

  • Target

    71768f2099e7c880dfd25b5e20df9424d0967689abe6fd7cf4896941b8977cb0.ps1

  • Size

    908KB

  • MD5

    8f4a5516d10a163ec1421fdf39fba854

  • SHA1

    c6c78a6af1ae01c1aa60f4e601fb97cdf7dcaa75

  • SHA256

    71768f2099e7c880dfd25b5e20df9424d0967689abe6fd7cf4896941b8977cb0

  • SHA512

    ac287b080b5b8683018da99840cb5e09267d57055da3edf54ee9d3b4a62d9c3c8c467c8e39aa1b9c48faf88fac821c1e59c139f1342282f113653cd30d9074a8

Score
10/10
netwalkerransomware

Malware Config

Extracted

Path

C:\odt\5C93B1-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .5c93b1 -- 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. Additionally, your data may have been stolen and if you do not cooperate with us, it will become publicly available on our blog. -- 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_5c93b1: BtrBz9/37KHfoZyb4KfAv9vXVaFIdSiQIcUZ1f+h0KXQ+//8n0 19V0bEhllFPTDY2RX6HJfDNVzn3uEjrShfD1g21J/JMncSfZTp smDkMJsW+Pi4a41wkMeYnb6tJj3k/ldrfp1178U9NPjHTyMj4X VvlPmnthhFzcvJbH3Zl6sVgaQTgvxvLbndfOX7fW8v6uKxfh7D aOGAPTpEhdu8AG9IifXKtx3rArLvOJlpJh5xboktgOwnua6scg qbnZgbTwFa8zcIU9a+VuoupL6GWRJ6gAndX1s7hQ==}
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 7 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 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
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    PID:2084
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\71768f2099e7c880dfd25b5e20df9424d0967689abe6fd7cf4896941b8977cb0.ps1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2272
      • 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\hf0fvcm0\hf0fvcm0.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3352
        • 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\RESE709.tmp" "c:\Users\Admin\AppData\Local\Temp\hf0fvcm0\CSCC82C2C5291B4B15A8236248A68DC94E.TMP"
          4⤵
            PID:3480
        • 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\ahcqffmo\ahcqffmo.cmdline"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3240
          • 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\RESEA93.tmp" "c:\Users\Admin\AppData\Local\Temp\ahcqffmo\CSC1B16E7F49234460EA18A78EE432220FA.TMP"
            4⤵
              PID:3208
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2800

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\RESE709.tmp
        Filesize

        1KB

        MD5

        ec8337ad2ad95fa03e2a1bf63c6337be

        SHA1

        1e2d5ff66fb26f686f6354350de10a6f1e0863c3

        SHA256

        d730d3672a69efda7b3ffc0ce391ec27015f66d463d39acdb93641e60eefa88b

        SHA512

        cb41457cfdc9145d043e8a1a8d96dd39f9fa98e65d0d8179474c7cbfe3076748073036ebfa4aad0e489b5e194ab8315d495bf089a9303920c85231072990d555

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      • C:\Users\Admin\AppData\Local\Temp\RESEA93.tmp
        Filesize

        1KB

        MD5

        26d2c0b84d168196fa6b6809bfc9f18d

        SHA1

        b2e896370727fd1b698d70e54ff743accb85d9c2

        SHA256

        ea5dd5192c7dbbf8e54b2ebd3d6cc4abfc332f2a347243d8d5c750a17ec10149

        SHA512

        c2e55d7defa6b0bd7b0b7a236cf5da5b3856eba31aa96aa1c12b44477d1ef327af6ea817e69203ec5cf1080e9415c6cec74d08d0e29a37dcfa13b43ed3089a2d

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      • C:\Users\Admin\AppData\Local\Temp\ahcqffmo\ahcqffmo.dll
        Filesize

        4KB

        MD5

        bbbf5ff71e4d1ff159dbc1f75d6e9f52

        SHA1

        67e01638d6e1c88298b0e447a6e3f62d5cf672a1

        SHA256

        1bc4b9c2067104c570d59afc72902eaa34867bdcc4df8e5bcc9a8ae157c740aa

        SHA512

        ff4e909dcc1c1ddc3048fe0823087156df51a1c8c1b7934f9dbdeb60c8f1d1d7aeae81f81ec46dc2b6a8d2f9ab86c1952ed548510d2dbd4bda2b5cbf5597abb1

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      • C:\Users\Admin\AppData\Local\Temp\hf0fvcm0\hf0fvcm0.dll
        Filesize

        6KB

        MD5

        400db1d4a9cc2696d0cedc8c0fedb86c

        SHA1

        3dce39f57b661474dbcbb36b4ffad085ccd96c2c

        SHA256

        25295eda4ea260d364e7074b320f4500b62ffc73899a6c098e2d03aad9a71cf9

        SHA512

        5ef108b51af8a18a0e671159dbe616970477368806e7e7bac21c3d6de516cf288b0e1092d382bf69e197b3a4906b4d51b1cc9e6a548b56580971d4053f7135de

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      • \??\c:\Users\Admin\AppData\Local\Temp\ahcqffmo\CSC1B16E7F49234460EA18A78EE432220FA.TMP
        Filesize

        652B

        MD5

        01e51ff147091ee6fb6f93f0a666399d

        SHA1

        2a4a42d4aa67599871b815a9cd40ca3cecec48cf

        SHA256

        3970d4c3b31802cadc40cf0dd8f74a68941e9d9f1064291a0ab0eb5833de1f20

        SHA512

        afe937cce17c57329ef7186a86c520389899e1dcfa0b4af285cb5d4bf3b19b357a05b2ad4514fa047b6c8d2dfcb075e4a1d6989b12115c9b9c9dd881f15dd038

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      • \??\c:\Users\Admin\AppData\Local\Temp\ahcqffmo\ahcqffmo.0.cs
        Filesize

        2KB

        MD5

        0ca239cbec62e94b213a1ca43e4d7dc5

        SHA1

        89ad0219ce997632027ad68a4a7f658fc65d8d2a

        SHA256

        f1d897ad3a4997908626edf2613d5b0dadb81def969b86b89415c5c22668f290

        SHA512

        e493ee87470c954a4e1ea0db55eee20f7213987e6c5d2d994f38a1df901386d5514045f905c2ee8bebe532082f773394d1951042b5a3019380169002d70b8ddc

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      • \??\c:\Users\Admin\AppData\Local\Temp\ahcqffmo\ahcqffmo.cmdline
        Filesize

        369B

        MD5

        4de49e11855b164528bb8705aad515c9

        SHA1

        628ca640048c5d2129a95c11d012888616c3705d

        SHA256

        ca7a951b70219a6dc2bf812661db887c0afaa6eebbce989be360b7aa186ce421

        SHA512

        9df83874c61e48d41f0396f613dcb4f540b150fc8d97bfe9f197ee5a360f91993c5a1b075777b753aea335b720cfe11099889c45cf6bb32dc424d1cee4c90eab

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      • \??\c:\Users\Admin\AppData\Local\Temp\hf0fvcm0\CSCC82C2C5291B4B15A8236248A68DC94E.TMP
        Filesize

        652B

        MD5

        af66492b5d10d383c4d059c18a63a6fa

        SHA1

        697595b7e1a7f1bf108b7ba3c7843ace4b3fc40d

        SHA256

        beeada735a61cecea7047cc0b6547a7e4e0c30780760ca7649ad5c335be8bb9c

        SHA512

        6d18366d9d3616c88c437c45e75af13c2535378af730115c8f11dff0c1c60651f0c1f6e576462ce0fce63365a8e7156c65f61d7fe1ee6068bbb08462ae37888e

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      • \??\c:\Users\Admin\AppData\Local\Temp\hf0fvcm0\hf0fvcm0.0.cs
        Filesize

        8KB

        MD5

        72d3ae92240c4c86e2f4c5757af7b065

        SHA1

        964bc0d9cd94f7c34eee6ed9c2672cb206890299

        SHA256

        bc8a2f83e312cadd7d9186f77134632941585844ce9a3586321ec3d73a342813

        SHA512

        e8ebb6ba7579381aebbbc457c02cede3898becad3eb53e9d624764042f69377488ba4ff61bb31825a32d9fb91ecbdcea2f09ecb2c36fbf9e5cf50e37d9489e72

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      • \??\c:\Users\Admin\AppData\Local\Temp\hf0fvcm0\hf0fvcm0.cmdline
        Filesize

        369B

        MD5

        a385f4ac09289f6402c1cb23612b3745

        SHA1

        552e2be3bf84d17c77aa4d26c6fde9401e2d9c8a

        SHA256

        f9b252f7136d9031ff144479a5f4d89255336cf4bdfd8d1c7b8169f7f2f4539b

        SHA512

        ec6561657f64002d3e124551462b29ba570f2a05d37fc1f2174a4a2788ca8c16ed4b655efdf10e087c83e71ea98b3faa2cacf39e6852fc5ebecb02bcd4a2744d

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      • memory/2084-146-0x0000000000E60000-0x0000000000E82000-memory.dmp
        Filesize

        136KB

        Download
      • memory/2272-130-0x0000014438FD0000-0x0000014438FF2000-memory.dmp
        Filesize

        136KB

        Download
      • memory/2272-131-0x00007FF8657A0000-0x00007FF866261000-memory.dmp
        Filesize

        10.8MB

        Download
      • memory/3208-142-0x0000000000000000-mapping.dmp
        Download
      • memory/3240-139-0x0000000000000000-mapping.dmp
        Download
      • memory/3352-132-0x0000000000000000-mapping.dmp
        Download
      • memory/3480-135-0x0000000000000000-mapping.dmp
        Download