Overview

overview

10

Static

static

10

fd3489f606...13.exe

windows7_x64

10

fd3489f606...13.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    72s
  • max time network
    71s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    29-06-2022 18:31

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General

  • Target

    fd3489f6067ef7ca3999776205839424cb7349134baaeb693abcecaa2c5bf913.exe

  • Size

    69KB

  • MD5

    fcedea8111abbb61e40fa5ed486fd434

  • SHA1

    1d837e6ece7ff326fcbeff7994744f7bd5434d99

  • SHA256

    fd3489f6067ef7ca3999776205839424cb7349134baaeb693abcecaa2c5bf913

  • SHA512

    7d8383b371c3206624fffd844c1af52f5cb0f3b327b06bbe6f657485ba4e70d6390865fc5febaf60eafd9e63cc41c12d0f4e5e99c07951ce0886916b47f123b1

Score
10/10
netwalkerransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\EEBF08-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .eebf08 -- 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_eebf08: u74HlWWSD6A6d9PrAIfz8c2mVYEvQjIeWKxVpOKUFEBZEJZdHC b/Kowqo+rQXMMTm3cstV7zBOX1cIG14jlvtohnjPHETSVOweWl e8YLuchWfAnl6nsGC0B1LiiPulqsWf7f04rJmdmhr6Ds5cOoow nYvmVRF9ulwvrHKOZvZQB4rrdKfqUn1N9JOW3K7vr+9whyT5I5 z9L7PRGwg6hAC8tuAvRYUwz/r+NQkTugUgFuKE5DTMIkkzbZN4 k0TT4an5C6yHEV6DhqNZ5eckzzF2FDeQHGiuMb0g==}
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 6 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Deletes itself 1 IoCs
  • 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
  • Kills process with taskkill 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fd3489f6067ef7ca3999776205839424cb7349134baaeb693abcecaa2c5bf913.exe
    "C:\Users\Admin\AppData\Local\Temp\fd3489f6067ef7ca3999776205839424cb7349134baaeb693abcecaa2c5bf913.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:664
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:1896
    • C:\Windows\SysWOW64\notepad.exe
      C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\EEBF08-Readme.txt"
      2⤵
        PID:4440
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c "C:\Users\Admin\AppData\Local\Temp\FB12.tmp.bat"
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:3448
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /PID 664
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1404
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3960

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\FB12.tmp.bat
      Filesize

      140B

      MD5

      28a76413d7e9f352530ab229a9e1ae12

      SHA1

      c620cbe7c8c760d34dab725520a2ec68149549c9

      SHA256

      0dcf3a5860fcf988a2c254136445faab4f266939d328c96ebd89e2b73faf3961

      SHA512

      e54a837b24728392850a239b9f5feeb7bb63c6d4e033f53848127023cff4c2c5ca326290f033eccb3ab9b9427e43771f0b60629951107628743d6b63f36bb1d5

      Download Submit

    • C:\Users\Admin\Desktop\EEBF08-Readme.txt
      Filesize

      1KB

      MD5

      44285a652e1bbeb82ea20abb5a67f42e

      SHA1

      1274089a6b6d59b9271d7d0de3762b201e54a8d0

      SHA256

      27df9a46eec75ec418bd0922fde68d7c1f795ceb82a20fa42a914a1088153c77

      SHA512

      305359e0f860d10e6c4266a53fe62f507b587301020eb27a533eca0214f4597f3064ec618a776b448417e2647b4f13a01c293c2ba1fc9671da28c814e3df82f3

      Download Submit

    • memory/664-54-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

      Filesize

      8KB

      Download

    • memory/664-56-0x0000000000231000-0x000000000028D000-memory.dmp

      Filesize

      368KB

      Download

    • memory/664-59-0x00000000001A0000-0x00000000001AB000-memory.dmp

      Filesize

      44KB

      Download