Analysis

  • max time kernel
    57s
  • max time network
    115s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09-11-2020 20:37

General

  • Target

    27319e75c23693399977e92b9a7ba5680a7a9db448f93b3221840c61301604d5.exe

  • Size

    69KB

  • MD5

    3a601ee68000508d58ea12203449a202

  • SHA1

    9068567b2b3fdae864ca9b1fb9013d0305e3ca83

  • SHA256

    27319e75c23693399977e92b9a7ba5680a7a9db448f93b3221840c61301604d5

  • SHA512

    176d60567b2bcf89aa6338f3f14b22ee2592e4ea6349c0a51d67e5b7655de611c2a6e58495cab8d9c5c26deaef03ad19852a0f32cd37466fa3241d61395527b0

Malware Config

Extracted

Path

C:\odt\E2DF58-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e2df58 -- 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_e2df58: fpPiGrG+2+D03F9AOBSGp2YCGf334WkHLUWeW71zXGtNVqGhHA 4k3jeFj96iGPUicLHcF7l7McqI4SU6vFH9rKXRcNy7Pq4Pq/a6 0qKOrdBdRno0gP4WsssN2mLR5pAGXRkJS3k11+jwW2OeBKz7mh DqmfNh4uotoL61qeG5ZKHSt+X4SwvHKmdewqRTzg5nUlwot5f/ jF3KvjvqHkND2pBndMu4xNt5w+KZ2xRqJIYNVWWmkgJus3jR0m PTyl5Mgjf6VXKz85F0fw+0KBstDpMxs+F1Pggmgw==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\ProgramData\Microsoft\Search\Data\Applications\Windows\E2DF58-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e2df58 -- 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_e2df58: fpPiGrG+2+D03F9AOBSGp2YCGf334WkHLUWeW71zXGtNVqGhHA 4k3jeFj96iGPUicLHcF7l7McqI4SU6vFH9rKXRcNy7Pq4Pq/a6 0qKOrdBdRno0gP4WsssN2mLR5pAGXRkJS3k11+jwW2OeBKz7mh DqmfNh4uotoL61qeG5ZKHSt+X4SwvHKmdewqRTzg5nUlwot5f/ jF3KvjvqHkND2pBndMu4xNt5w+KZ2xRqJIYNVWWmkgJus3jR0m PTyl5Mgjf6VXKz85F0fw+0KBstDpMxs+F1Pggmgw==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e2df58 -- 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_e2df58: fpPiGrG+2+D03F9AOBSGp2YCGf334WkHLUWeW71zXGtNVqGhHA 4k3jeFj96iGPUicLHcF7l7McqI4SU6vFH9rKXRcNy7Pq4Pq/a6 0qKOrdBdRno0gP4WsssN2mLR5pAGXRkJS3k11+jwW2OeBKz7mh DqmfNh4uotoL61qeG5ZKHSt+X4SwvHKmdewqRTzg5nUlwot5f/ jF3KvjvqHkND2pBndMu4xNt5w+KZ2xRqJIYNVWWmkgJus3jR0m PTyl5Mgjf6VXKz85F0fw+0KBstDpMxs+F1Pggmgw==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e2df58 -- 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_e2df58: fpPiGrG+2+D03F9AOBSGp2YCGf334WkHLUWeW71zXGtNVqGhHA 4k3jeFj96iGPUicLHcF7l7McqI4SU6vFH9rKXRcNy7Pq4Pq/a6 0qKOrdBdRno0gP4WsssN2mLR5pAGXRkJS3k11+jwW2OeBKz7mh DqmfNh4uotoL61qeG5ZKHSt+X4SwvHKmdewqRTzg5nUlwot5f/ jF3KvjvqHkND2pBndMu4xNt5w+KZ2xRqJIYNVWWmkgJus3jR0m PTyl5Mgjf6VXKz85F0fw+0KBstDpMxs+F1Pggmgw==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e2df58 -- 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_e2df58: fpPiGrG+2+D03F9AOBSGp2YCGf334WkHLUWeW71zXGtNVqGhHA 4k3jeFj96iGPUicLHcF7l7McqI4SU6vFH9rKXRcNy7Pq4Pq/a6 0qKOrdBdRno0gP4WsssN2mLR5pAGXRkJS3k11+jwW2OeBKz7mh DqmfNh4uotoL61qeG5ZKHSt+X4SwvHKmdewqRTzg5nUlwot5f/ jF3KvjvqHkND2pBndMu4xNt5w+KZ2xRqJIYNVWWmkgJus3jR0m PTyl5Mgjf6VXKz85F0fw+0KBstDpMxs+F1Pggmgw==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files\7-Zip\E2DF58-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e2df58 -- 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_e2df58: fpPiGrG+2+D03F9AOBSGp2YCGf334WkHLUWeW71zXGtNVqGhHA 4k3jeFj96iGPUicLHcF7l7McqI4SU6vFH9rKXRcNy7Pq4Pq/a6 0qKOrdBdRno0gP4WsssN2mLR5pAGXRkJS3k11+jwW2OeBKz7mh DqmfNh4uotoL61qeG5ZKHSt+X4SwvHKmdewqRTzg5nUlwot5f/ jF3KvjvqHkND2pBndMu4xNt5w+KZ2xRqJIYNVWWmkgJus3jR0m PTyl5Mgjf6VXKz85F0fw+0KBstDpMxs+F1Pggmgw==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e2df58 -- 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_e2df58: fpPiGrG+2+D03F9AOBSGp2YCGf334WkHLUWeW71zXGtNVqGhHA 4k3jeFj96iGPUicLHcF7l7McqI4SU6vFH9rKXRcNy7Pq4Pq/a6 0qKOrdBdRno0gP4WsssN2mLR5pAGXRkJS3k11+jwW2OeBKz7mh DqmfNh4uotoL61qeG5ZKHSt+X4SwvHKmdewqRTzg5nUlwot5f/ jF3KvjvqHkND2pBndMu4xNt5w+KZ2xRqJIYNVWWmkgJus3jR0m PTyl5Mgjf6VXKz85F0fw+0KBstDpMxs+F1Pggmgw==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\reviews\images\themes\dark\E2DF58-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e2df58 -- 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_e2df58: fpPiGrG+2+D03F9AOBSGp2YCGf334WkHLUWeW71zXGtNVqGhHA 4k3jeFj96iGPUicLHcF7l7McqI4SU6vFH9rKXRcNy7Pq4Pq/a6 0qKOrdBdRno0gP4WsssN2mLR5pAGXRkJS3k11+jwW2OeBKz7mh DqmfNh4uotoL61qeG5ZKHSt+X4SwvHKmdewqRTzg5nUlwot5f/ jF3KvjvqHkND2pBndMu4xNt5w+KZ2xRqJIYNVWWmkgJus3jR0m PTyl5Mgjf6VXKz85F0fw+0KBstDpMxs+F1Pggmgw==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e2df58 -- 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_e2df58: fpPiGrG+2+D03F9AOBSGp2YCGf334WkHLUWeW71zXGtNVqGhHA 4k3jeFj96iGPUicLHcF7l7McqI4SU6vFH9rKXRcNy7Pq4Pq/a6 0qKOrdBdRno0gP4WsssN2mLR5pAGXRkJS3k11+jwW2OeBKz7mh DqmfNh4uotoL61qeG5ZKHSt+X4SwvHKmdewqRTzg5nUlwot5f/ jF3KvjvqHkND2pBndMu4xNt5w+KZ2xRqJIYNVWWmkgJus3jR0m PTyl5Mgjf6VXKz85F0fw+0KBstDpMxs+F1Pggmgw==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e2df58 -- 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_e2df58: fpPiGrG+2+D03F9AOBSGp2YCGf334WkHLUWeW71zXGtNVqGhHA 4k3jeFj96iGPUicLHcF7l7McqI4SU6vFH9rKXRcNy7Pq4Pq/a6 0qKOrdBdRno0gP4WsssN2mLR5pAGXRkJS3k11+jwW2OeBKz7mh DqmfNh4uotoL61qeG5ZKHSt+X4SwvHKmdewqRTzg5nUlwot5f/ jF3KvjvqHkND2pBndMu4xNt5w+KZ2xRqJIYNVWWmkgJus3jR0m PTyl5Mgjf6VXKz85F0fw+0KBstDpMxs+F1Pggmgw==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Signatures

  • Netwalker Ransomware

    Ransomware family with multiple versions. Also known as MailTo.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Modifies service 2 TTPs 5 IoCs
  • Drops file in Program Files directory 17158 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10110 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\27319e75c23693399977e92b9a7ba5680a7a9db448f93b3221840c61301604d5.exe
    "C:\Users\Admin\AppData\Local\Temp\27319e75c23693399977e92b9a7ba5680a7a9db448f93b3221840c61301604d5.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:412
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:1668
    • C:\Windows\SysWOW64\notepad.exe
      C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\E2DF58-Readme.txt"
      2⤵
        PID:2472
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\EF57.tmp.bat"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4460
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /PID 412
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:5912
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Modifies service
      • Suspicious use of AdjustPrivilegeToken
      PID:1948

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\EF57.tmp.bat

      MD5

      f288cf99eef21158e593dd14fa73697c

      SHA1

      cbf86ac0ee1b9d03613ebe6ac8e5549495f6e62a

      SHA256

      c975f8a83552cf56f80964abef55bd4e60f599071c0c2bde2696625e9fc89648

      SHA512

      1989508f472dc8536026b9cbcbad75b68986260fac8b84b98db57f212604b98e3853e83f234e605a221ffad3becd61a563fcbaa01b8699c7317ba1dcd2849118

    • C:\Users\Admin\Desktop\E2DF58-Readme.txt

      MD5

      3feff047532042ac4a69d88487768d5a

      SHA1

      c2edec84fb23de5794d1a0c635761ef8146429fa

      SHA256

      3c11575f2379fc5a335abef8760ecc49fc9be600b88e437a58502dcb4f0b5881

      SHA512

      075580c9060a99ae631d19874a99f1d18e4adbdae3457257f21ed8bb061ff00deb1696769dc2a5176999d234dac7f738b15193519cd73a04c9a4950a7c9ac74f

    • memory/1668-0-0x0000000000000000-mapping.dmp

    • memory/2472-1-0x0000000000000000-mapping.dmp

    • memory/4460-2-0x0000000000000000-mapping.dmp

    • memory/5912-4-0x0000000000000000-mapping.dmp