Overview

overview

10

Static

static

e1650d31f0...cc.ps1

windows7_x64

8

e1650d31f0...cc.ps1

windows10-2004_x64

10

Analysis

  • max time kernel
    157s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    01-02-2022 01:21

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General

  • Target

    e1650d31f00d38b98cf8aa48a2e5fdd4bb30dd1177546abe3053bdcff25cefcc.ps1

  • Size

    5.1MB

  • MD5

    b49b3852097431b773e6dcf4c314f87a

  • SHA1

    f0952ec5d3c90398e1335f1fad00b80dbd4c5a32

  • SHA256

    e1650d31f00d38b98cf8aa48a2e5fdd4bb30dd1177546abe3053bdcff25cefcc

  • SHA512

    0274aa4b490f226174fb5ea9f993ad38431438846313fde54682ef69a73fbebb26e51bf2f8b3e5fc604dab6e765765f5fd1d6f6bfefb928cb8a2f5ac33561291

Score
10/10
netwalkerransomware

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\3C14B1-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .3c14b1 -- 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_3c14b1: k/RZBzIz159q34Oy6T7E83Af43+PDkSOkN7ysoW9YDeI9VWaO3 Ak/cJDJBD8RlPrX+rrrWSTOm91umT1dEfAj1CcMF3ofUVFxSFL k2nyw40llFIwPTA6Su1BW5XIujehqbOq45dZbWOEK4Q7qR/61w 1V5IqVKyINQDv57GVDOmZXWCUXbe+47AoPuXdgL07LwEi3dIIg ZhYAhwXXWJzdkzaHXP5dpNlnIlV9vRXT30Nk1dC6Up/0JivWlT Mpp4IUgfwVdGqUPK9cWGO5T9FImqL3EKKubUR+qw==}
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 5 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Modifies data under HKEY_USERS 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 49 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:2452
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\e1650d31f00d38b98cf8aa48a2e5fdd4bb30dd1177546abe3053bdcff25cefcc.ps1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:604
      • 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\iogjvbn1\iogjvbn1.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3720
        • 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\RES7855.tmp" "c:\Users\Admin\AppData\Local\Temp\iogjvbn1\CSC9978D9FFD9A04EDABC86A3F2A19767AD.TMP"
          4⤵
            PID:3420
        • 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\elwasasa\elwasasa.cmdline"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2932
          • 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\RES842C.tmp" "c:\Users\Admin\AppData\Local\Temp\elwasasa\CSCF0355ED7804F48CF88F0B1D5D43980.TMP"
            4⤵
              PID:2976
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p
        1⤵
          PID:4068
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1660
        • C:\Windows\System32\WaaSMedicAgent.exe
          C:\Windows\System32\WaaSMedicAgent.exe bc385881f2f02f9bfd70f0fc9b12b85e /qhMMxK3h0WVn1YB0kAugw.0.1.0.0.0
          1⤵
          • Modifies data under HKEY_USERS
          PID:9180

        Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        • memory/604-139-0x0000024B7BDD6000-0x0000024B7BDD8000-memory.dmp

          Filesize

          8KB

          Download

        • memory/604-135-0x0000024B7BDD3000-0x0000024B7BDD5000-memory.dmp

          Filesize

          8KB

          Download

        • memory/604-136-0x0000024B7BD70000-0x0000024B7BD92000-memory.dmp

          Filesize

          136KB

          Download

        • memory/604-134-0x0000024B7BDD0000-0x0000024B7BDD2000-memory.dmp

          Filesize

          8KB

          Download

        • memory/604-151-0x0000024B7BDD8000-0x0000024B7BDD9000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2452-152-0x0000000000730000-0x000000000074B000-memory.dmp

          Filesize

          108KB

          Download