Overview

overview

10

Static

static

10

9678554995...6f.exe

windows7_x64

10

9678554995...6f.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    161s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    01-02-2022 01:26

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General

  • Target

    9678554995ddbcf42d562d43af6f50162703ea60a991594c0ac21b056afdc56f.exe

  • Size

    69KB

  • MD5

    d591354b8ebb378156ce4741d3191b3d

  • SHA1

    5c6346e62370b37c7906b89d3016fd852c1fafbc

  • SHA256

    9678554995ddbcf42d562d43af6f50162703ea60a991594c0ac21b056afdc56f

  • SHA512

    8bcea489f592842c0bda0d45c9be2ac0972a928edd8f17fd0832cd95294c37f2d2a43d904433062d3bd5fcae989922d84db5e0725357a739d3e4071ccb001bbf

Score
10/10
netwalkerransomwarespywarestealer

Malware Config

Extracted

Path

C:\Program Files\VideoLAN\VLC\locale\eu\LC_MESSAGES\7781EE-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .7781ee -- 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_7781ee: w2hoo3FR2kGpjrNL0uXx6u1yu4nntHUX2KNk6URIHL7Ti6mjXo fUIOoRDMk/+4dPKKIvfvQONz6MrkMnaQKT3Ovg3JJxr+FoQzaM 0i9jKGqJIqV6FSLBpU1YpRsc6T6omU3w2vv0G/qN0xFDJjhKvd Pf55ymhGqAALKd7rF5ArYJTaxAlYnjS6DbT7023oAbSEk9udz9 630CMsGIRH5c+kpNixoj4r4Q9rAshx4ioQr6aqizWapTGEFfQz 1OMQkpM69Wtri5W8qy1j59CEm1LittUkIAiI4W2Q==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Signatures

  • Netwalker Ransomware

    Ransomware family with multiple versions. Also known as MailTo.

    ransomwarenetwalker
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9678554995ddbcf42d562d43af6f50162703ea60a991594c0ac21b056afdc56f.exe
    "C:\Users\Admin\AppData\Local\Temp\9678554995ddbcf42d562d43af6f50162703ea60a991594c0ac21b056afdc56f.exe"
    1⤵
    • Modifies extensions of user files
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1452
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:1112
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4932

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1452-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1452-55-0x00000000063A0000-0x000000000641D000-memory.dmp

    Filesize

    500KB

    Download