Overview

overview

10

Static

static

10

ee531cd701...7f.exe

windows7_x64

10

ee531cd701...7f.exe

windows10_x64

10

Analysis

  • max time kernel
    157s
  • max time network
    162s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 20:17

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General

  • Target

    ee531cd7011cb5c2625d40892b70cf7e3860dbb92648391068e1f340e5d6c47f.exe

  • Size

    69KB

  • MD5

    a9e395e478d042c77b1090242bb11372

  • SHA1

    cf53d001e7ec8b7ac48b78d1589f75ff388e8479

  • SHA256

    ee531cd7011cb5c2625d40892b70cf7e3860dbb92648391068e1f340e5d6c47f

  • SHA512

    29e1e16162a2baa47a065eeb1d2bd9b732e63e8c742b50c22278b05aad35987ea1301079c9cdc8716dd61ea313f098deb860e278e719f34e5a16056729749ba1

Score
10/10
netwalkerpersistenceransomwarespyware

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\Windows\WER\ReportQueue\NonCritical_x64_14581a24ae3cd03160d66be822236893de867_cab_05f073b8\83E2CE-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .83e2ce -- 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_83e2ce: zhL0EHLZYqu29gTx/kODGAclGZBNcin4TbWojwtBwXoskoIvz4 KrsPZ406+Wr2ZFO5ikLhU2D+9730ANKYaG77wZxLlY3lUy0zj8 pt2PR7WhpdEApzxm7FpG8MCGsY7QqEFuYWsdqxiuerZE6e40ao ym9Nk7y1BVypg6bsJtgR9gId9eWbZv+9wRNiYjSAq+kHpP5daQ btAaob3uR355VSfTCtUeyW/vr3pYoy3+Gdd/ULkXYAcU6reKaQ LMbHqUmQSqxRgogwXEtuWUzNpGOhGybC13avAfkw==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\83E2CE-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .83e2ce -- 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_83e2ce: zhL0EHLZYqu29gTx/kODGAclGZBNcin4TbWojwtBwXoskoIvz4 KrsPZ406+Wr2ZFO5ikLhU2D+9730ANKYaG77wZxLlY3lUy0zj8 pt2PR7WhpdEApzxm7FpG8MCGsY7QqEFuYWsdqxiuerZE6e40ao ym9Nk7y1BVypg6bsJtgR9gId9eWbZv+9wRNiYjSAq+kHpP5daQ btAaob3uR355VSfTCtUeyW/vr3pYoy3+Gdd/ULkXYAcU6reKaQ LMbHqUmQSqxRgogwXEtuWUzNpGOhGybC13avAfkw==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .83e2ce -- 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_83e2ce: zhL0EHLZYqu29gTx/kODGAclGZBNcin4TbWojwtBwXoskoIvz4 KrsPZ406+Wr2ZFO5ikLhU2D+9730ANKYaG77wZxLlY3lUy0zj8 pt2PR7WhpdEApzxm7FpG8MCGsY7QqEFuYWsdqxiuerZE6e40ao ym9Nk7y1BVypg6bsJtgR9gId9eWbZv+9wRNiYjSAq+kHpP5daQ btAaob3uR355VSfTCtUeyW/vr3pYoy3+Gdd/ULkXYAcU6reKaQ LMbHqUmQSqxRgogwXEtuWUzNpGOhGybC13avAfkw==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\Admin\Pictures\83E2CE-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .83e2ce -- 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_83e2ce: zhL0EHLZYqu29gTx/kODGAclGZBNcin4TbWojwtBwXoskoIvz4 KrsPZ406+Wr2ZFO5ikLhU2D+9730ANKYaG77wZxLlY3lUy0zj8 pt2PR7WhpdEApzxm7FpG8MCGsY7QqEFuYWsdqxiuerZE6e40ao ym9Nk7y1BVypg6bsJtgR9gId9eWbZv+9wRNiYjSAq+kHpP5daQ btAaob3uR355VSfTCtUeyW/vr3pYoy3+Gdd/ULkXYAcU6reKaQ LMbHqUmQSqxRgogwXEtuWUzNpGOhGybC13avAfkw==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .83e2ce -- 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_83e2ce: zhL0EHLZYqu29gTx/kODGAclGZBNcin4TbWojwtBwXoskoIvz4 KrsPZ406+Wr2ZFO5ikLhU2D+9730ANKYaG77wZxLlY3lUy0zj8 pt2PR7WhpdEApzxm7FpG8MCGsY7QqEFuYWsdqxiuerZE6e40ao ym9Nk7y1BVypg6bsJtgR9gId9eWbZv+9wRNiYjSAq+kHpP5daQ btAaob3uR355VSfTCtUeyW/vr3pYoy3+Gdd/ULkXYAcU6reKaQ LMbHqUmQSqxRgogwXEtuWUzNpGOhGybC13avAfkw==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .83e2ce -- 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_83e2ce: zhL0EHLZYqu29gTx/kODGAclGZBNcin4TbWojwtBwXoskoIvz4 KrsPZ406+Wr2ZFO5ikLhU2D+9730ANKYaG77wZxLlY3lUy0zj8 pt2PR7WhpdEApzxm7FpG8MCGsY7QqEFuYWsdqxiuerZE6e40ao ym9Nk7y1BVypg6bsJtgR9gId9eWbZv+9wRNiYjSAq+kHpP5daQ btAaob3uR355VSfTCtUeyW/vr3pYoy3+Gdd/ULkXYAcU6reKaQ LMbHqUmQSqxRgogwXEtuWUzNpGOhGybC13avAfkw==}
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 11 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.

    spyware
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Drops file in Program Files directory 7487 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 22761 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ee531cd7011cb5c2625d40892b70cf7e3860dbb92648391068e1f340e5d6c47f.exe
    "C:\Users\Admin\AppData\Local\Temp\ee531cd7011cb5c2625d40892b70cf7e3860dbb92648391068e1f340e5d6c47f.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:800
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:1816
    • C:\Windows\SysWOW64\notepad.exe
      C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\83E2CE-Readme.txt"
      2⤵
        PID:2232
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c "C:\Users\Admin\AppData\Local\Temp\E9F2.tmp.bat"
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:3188
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /PID 800
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:5296
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Modifies service
      • Suspicious use of AdjustPrivilegeToken
      PID:6296

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Modify Existing Service

    1
    T1031

    Privilege Escalation

    Defense Evasion

    File Deletion

    2
    T1107

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Exfiltration

    Command and Control

    Impact

    Inhibit System Recovery

    2
    T1490

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\E9F2.tmp.bat
      MD5

      88c6f82dba2b291b2910bc4c7a3a7037

      SHA1

      22a036caf94c6592b12f24b08b465c5a37aaa569

      SHA256

      92724eb0d12a4386b567b6027f9302508cbaf0559184713636e73692bff3e9ff

      SHA512

      bbd84eaeb10026856184766ea1c12673322f56337213f5126d8b7e2cff9ea6d1f25b3e802547ed9d628f0a70121a4c689ee8ae439ed751a05b89fc0e266e8f66

      Download Submit
    • C:\Users\Admin\Desktop\83E2CE-Readme.txt
      MD5

      06b9056f7d79827e8b5bedd05a689b34

      SHA1

      b8617151173c754befc8e147cf8ebb52c0d92aa5

      SHA256

      cd21c8e2e2297f7a9fcf2cdea82b29f94b36c00ab71c4c630c5cd376704ea860

      SHA512

      369f1cfcc9f42077daf3f736f72505120a89a503984638a2aa637043b78ff8ac8663e245c3706787b387f3c5738cf755d7ddd7b5f05093b02a6fc5e4a06b21e5

      Download Submit
    • memory/1816-0-0x0000000000000000-mapping.dmp
      Download
    • memory/2232-4-0x0000000000000000-mapping.dmp
      Download
    • memory/3188-7-0x0000000000000000-mapping.dmp
      Download
    • memory/5296-11-0x0000000000000000-mapping.dmp
      Download