Overview

overview

10

Static

static

10

IRSdeclara...od.exe

windows7_x64

10

IRSdeclara...od.exe

windows10_x64

10

Resubmissions

15/10/2020, 13:59

201015-d11m2zjdgs10

13/03/2020, 03:32

200313-8w7dt2yb5n9

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General

  • Target
    IRSdeclaration‮cod.exe
  • Size 282KB
  • Sample201015-d11m2zjdgs
  • SHA256 c414bbb789af8e3fb93b33344b31f1991582ec0f06558b29a3178d2b02465c72
  • MD5 SHA1 SHA512
Score
10/10
netwalkerpersistenceransomwarespyware

Malware Config

Extracted

Path

  • C:\ProgramData\Package Cache\{f4220b74-9edd-4ded-bc8b-0342c1e164d8}\FD6F5D-Readme.txt

  • netwalker

Ransom Note
  • Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .fd6f5d -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_fd6f5d: l/Fk05gcV+GUCD0bIg74onLdc73bTB+ghYzoOM0ZflBrMzLu5v kpJgWgMRHgrxJjbeMMAeLd5IOLqdZsGGy8UhMYDlQFiNVv41Zj AnXAqEjZ8Oh8YjoNP8jnZUX15sWv5bzR1agHdKgTgy2ewzcErN bj3a1GUySmish9GBUpQrFNit8yElCXlv3BAf1Gl/qP4hIzZByi IXxk+WIarjMQXdGJEoolV2MtDSCl4e2QD68L7o74z05Z6qD4Gu +MUXV+mvfVfOpwNM3QsgkN/hJ2SvaatSnhQVteXA==}
URLs

  • http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

  • C:\Program Files\Microsoft Office\MEDIA\OFFICE14\LINES\FD6F5D-Readme.txt

  • netwalker

Ransom Note
  • Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .fd6f5d -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_fd6f5d: l/Fk05gcV+GUCD0bIg74onLdc73bTB+ghYzoOM0ZflBrMzLu5v kpJgWgMRHgrxJjbeMMAeLd5IOLqdZsGGy8UhMYDlQFiNVv41Zj AnXAqEjZ8Oh8YjoNP8jnZUX15sWv5bzR1agHdKgTgy2ewzcErN bj3a1GUySmish9GBUpQrFNit8yElCXlv3BAf1Gl/qP4hIzZByi IXxk+WIarjMQXdGJEoolV2MtDSCl4e2QD68L7o74z05Z6qD4Gu +MUXV+mvfVfOpwNM3QsgkN/hJ2SvaatSnhQVteXA==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .fd6f5d -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_fd6f5d: l/Fk05gcV+GUCD0bIg74onLdc73bTB+ghYzoOM0ZflBrMzLu5v kpJgWgMRHgrxJjbeMMAeLd5IOLqdZsGGy8UhMYDlQFiNVv41Zj AnXAqEjZ8Oh8YjoNP8jnZUX15sWv5bzR1agHdKgTgy2ewzcErN bj3a1GUySmish9GBUpQrFNit8yElCXlv3BAf1Gl/qP4hIzZByi IXxk+WIarjMQXdGJEoolV2MtDSCl4e2QD68L7o74z05Z6qD4Gu +MUXV+mvfVfOpwNM3QsgkN/hJ2SvaatSnhQVteXA==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .fd6f5d -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_fd6f5d: l/Fk05gcV+GUCD0bIg74onLdc73bTB+ghYzoOM0ZflBrMzLu5v kpJgWgMRHgrxJjbeMMAeLd5IOLqdZsGGy8UhMYDlQFiNVv41Zj AnXAqEjZ8Oh8YjoNP8jnZUX15sWv5bzR1agHdKgTgy2ewzcErN bj3a1GUySmish9GBUpQrFNit8yElCXlv3BAf1Gl/qP4hIzZByi IXxk+WIarjMQXdGJEoolV2MtDSCl4e2QD68L7o74z05Z6qD4Gu +MUXV+mvfVfOpwNM3QsgkN/hJ2SvaatSnhQVteXA==}
URLs

  • http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

  • C:\Program Files\Microsoft Office\MEDIA\CAGCAT10\FD6F5D-Readme.txt

  • netwalker

Ransom Note
  • Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .fd6f5d -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_fd6f5d: l/Fk05gcV+GUCD0bIg74onLdc73bTB+ghYzoOM0ZflBrMzLu5v kpJgWgMRHgrxJjbeMMAeLd5IOLqdZsGGy8UhMYDlQFiNVv41Zj AnXAqEjZ8Oh8YjoNP8jnZUX15sWv5bzR1agHdKgTgy2ewzcErN bj3a1GUySmish9GBUpQrFNit8yElCXlv3BAf1Gl/qP4hIzZByi IXxk+WIarjMQXdGJEoolV2MtDSCl4e2QD68L7o74z05Z6qD4Gu +MUXV+mvfVfOpwNM3QsgkN/hJ2SvaatSnhQVteXA==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .fd6f5d -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_fd6f5d: l/Fk05gcV+GUCD0bIg74onLdc73bTB+ghYzoOM0ZflBrMzLu5v kpJgWgMRHgrxJjbeMMAeLd5IOLqdZsGGy8UhMYDlQFiNVv41Zj AnXAqEjZ8Oh8YjoNP8jnZUX15sWv5bzR1agHdKgTgy2ewzcErN bj3a1GUySmish9GBUpQrFNit8yElCXlv3BAf1Gl/qP4hIzZByi IXxk+WIarjMQXdGJEoolV2MtDSCl4e2QD68L7o74z05Z6qD4Gu +MUXV+mvfVfOpwNM3QsgkN/hJ2SvaatSnhQVteXA==}
URLs

  • http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

  • C:\5138E8-Readme.txt

  • netwalker

Ransom Note
  • Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5138e8 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5138e8: Xc5zSrtrA6QNffbGlMQ+siLG0O/0MCA2nxYcN14r4dggoI+yPr KbXcVFX9JGddBFzhp8tqtLcajb2ON/lvUFdxka3xBWAX9a41Zj AnVTWgB7qIQl9QczCSHu4vK3GwTTy5H1i0QEJTT4zNZVy1a4Tg 7PzFb1hqdBzmFpMR23ezvZoxBFDLcBPyiuZTEtqgC3hsbndUkF 5/Lr3FaHkLpvOEzZ9N2nk5iS0l3iiGSaXcwYrdT4UsWjooI7dQ 00us+4l4ppWqEPYBl83jH9n+E7hwpAKYe+VEjaRg==}
URLs

  • http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

  • C:\Users\All Users\Microsoft\Search\Data\Applications\Windows\5138E8-Readme.txt

  • netwalker

Ransom Note
  • Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5138e8 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5138e8: Xc5zSrtrA6QNffbGlMQ+siLG0O/0MCA2nxYcN14r4dggoI+yPr KbXcVFX9JGddBFzhp8tqtLcajb2ON/lvUFdxka3xBWAX9a41Zj AnVTWgB7qIQl9QczCSHu4vK3GwTTy5H1i0QEJTT4zNZVy1a4Tg 7PzFb1hqdBzmFpMR23ezvZoxBFDLcBPyiuZTEtqgC3hsbndUkF 5/Lr3FaHkLpvOEzZ9N2nk5iS0l3iiGSaXcwYrdT4UsWjooI7dQ 00us+4l4ppWqEPYBl83jH9n+E7hwpAKYe+VEjaRg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5138e8 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5138e8: Xc5zSrtrA6QNffbGlMQ+siLG0O/0MCA2nxYcN14r4dggoI+yPr KbXcVFX9JGddBFzhp8tqtLcajb2ON/lvUFdxka3xBWAX9a41Zj AnVTWgB7qIQl9QczCSHu4vK3GwTTy5H1i0QEJTT4zNZVy1a4Tg 7PzFb1hqdBzmFpMR23ezvZoxBFDLcBPyiuZTEtqgC3hsbndUkF 5/Lr3FaHkLpvOEzZ9N2nk5iS0l3iiGSaXcwYrdT4UsWjooI7dQ 00us+4l4ppWqEPYBl83jH9n+E7hwpAKYe+VEjaRg==}
URLs

  • http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

  • C:\Program Files\5138E8-Readme.txt

  • netwalker

Ransom Note
  • Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5138e8 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5138e8: Xc5zSrtrA6QNffbGlMQ+siLG0O/0MCA2nxYcN14r4dggoI+yPr KbXcVFX9JGddBFzhp8tqtLcajb2ON/lvUFdxka3xBWAX9a41Zj AnVTWgB7qIQl9QczCSHu4vK3GwTTy5H1i0QEJTT4zNZVy1a4Tg 7PzFb1hqdBzmFpMR23ezvZoxBFDLcBPyiuZTEtqgC3hsbndUkF 5/Lr3FaHkLpvOEzZ9N2nk5iS0l3iiGSaXcwYrdT4UsWjooI7dQ 00us+4l4ppWqEPYBl83jH9n+E7hwpAKYe+VEjaRg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5138e8 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5138e8: Xc5zSrtrA6QNffbGlMQ+siLG0O/0MCA2nxYcN14r4dggoI+yPr KbXcVFX9JGddBFzhp8tqtLcajb2ON/lvUFdxka3xBWAX9a41Zj AnVTWgB7qIQl9QczCSHu4vK3GwTTy5H1i0QEJTT4zNZVy1a4Tg 7PzFb1hqdBzmFpMR23ezvZoxBFDLcBPyiuZTEtqgC3hsbndUkF 5/Lr3FaHkLpvOEzZ9N2nk5iS0l3iiGSaXcwYrdT4UsWjooI7dQ 00us+4l4ppWqEPYBl83jH9n+E7hwpAKYe+VEjaRg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5138e8 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5138e8: Xc5zSrtrA6QNffbGlMQ+siLG0O/0MCA2nxYcN14r4dggoI+yPr KbXcVFX9JGddBFzhp8tqtLcajb2ON/lvUFdxka3xBWAX9a41Zj AnVTWgB7qIQl9QczCSHu4vK3GwTTy5H1i0QEJTT4zNZVy1a4Tg 7PzFb1hqdBzmFpMR23ezvZoxBFDLcBPyiuZTEtqgC3hsbndUkF 5/Lr3FaHkLpvOEzZ9N2nk5iS0l3iiGSaXcwYrdT4UsWjooI7dQ 00us+4l4ppWqEPYBl83jH9n+E7hwpAKYe+VEjaRg==}
URLs

  • http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Targets

    • Target
      IRSdeclaration‮cod.exe
    • Size 282KB
    • SHA256 c414bbb789af8e3fb93b33344b31f1991582ec0f06558b29a3178d2b02465c72
    • MD5 SHA1 SHA512
    Score
    10/10
    ransomwarenetwalkerspywarepersistence

    • Netwalker Ransomware

      Ransomware family with multiple versions. Also known as MailTo.

      ransomwarenetwalker

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Deletes itself

    • Reads user/profile data of web browsers

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

      spyware

    • Modifies service

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks