Analysis

  • max time kernel
    50s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    01-07-2021 04:38

General

  • Target

    9a9bf626d4a3e9afe613f7eaa347acac600de2aecc45a5706aa2ba386625eed6.exe

  • Size

    66KB

  • MD5

    5e7d419747ee589f724a80d9ac8b7186

  • SHA1

    b91e9178b054811312c83f3d81cc4153d2fa38ba

  • SHA256

    9a9bf626d4a3e9afe613f7eaa347acac600de2aecc45a5706aa2ba386625eed6

  • SHA512

    bdd91c5551df4a3adbe56ebcf2045cad1ed924627c16236ef7579ee73974c3d784a0fc2624ecb143912315231c9565854294d021d01549f61140efe1ec2b6c23

Malware Config

Extracted

Path

C:\odt\65E5C4-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .65e5c4 -- 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_65e5c4: w6D5n2kfpY6auhEDHXKSb/H/BOWM6WgEc6FfMBSdkMHXBvE1+Y IOGK/LM5d2q3t2qdnE9ta80pfo5O0Hojoo5eUNwFPkZgZT41Zj AnZdnTbsw8Bo6Qmp3TehmsE7NwY86dFaHxMbGBzvJJ6raSx8Lf 4CCFqQILx8mtuOdkwTwabcCPCL4IVjnRZ+SCY7zDG7dSv5GNhp 4T4u9ba2AscYYwOLOVM01nme36p2GMdTRKkD/SUb48OlFegcDL MIhXJyzXfyUOf2uNs7JH45m3tZG+Hy7wqzOmuRew==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\65E5C4-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .65e5c4 -- 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_65e5c4: w6D5n2kfpY6auhEDHXKSb/H/BOWM6WgEc6FfMBSdkMHXBvE1+Y IOGK/LM5d2q3t2qdnE9ta80pfo5O0Hojoo5eUNwFPkZgZT41Zj AnZdnTbsw8Bo6Qmp3TehmsE7NwY86dFaHxMbGBzvJJ6raSx8Lf 4CCFqQILx8mtuOdkwTwabcCPCL4IVjnRZ+SCY7zDG7dSv5GNhp 4T4u9ba2AscYYwOLOVM01nme36p2GMdTRKkD/SUb48OlFegcDL MIhXJyzXfyUOf2uNs7JH45m3tZG+Hy7wqzOmuRew==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .65e5c4 -- 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_65e5c4: w6D5n2kfpY6auhEDHXKSb/H/BOWM6WgEc6FfMBSdkMHXBvE1+Y IOGK/LM5d2q3t2qdnE9ta80pfo5O0Hojoo5eUNwFPkZgZT41Zj AnZdnTbsw8Bo6Qmp3TehmsE7NwY86dFaHxMbGBzvJJ6raSx8Lf 4CCFqQILx8mtuOdkwTwabcCPCL4IVjnRZ+SCY7zDG7dSv5GNhp 4T4u9ba2AscYYwOLOVM01nme36p2GMdTRKkD/SUb48OlFegcDL MIhXJyzXfyUOf2uNs7JH45m3tZG+Hy7wqzOmuRew==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\Admin\Documents\65E5C4-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .65e5c4 -- 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_65e5c4: w6D5n2kfpY6auhEDHXKSb/H/BOWM6WgEc6FfMBSdkMHXBvE1+Y IOGK/LM5d2q3t2qdnE9ta80pfo5O0Hojoo5eUNwFPkZgZT41Zj AnZdnTbsw8Bo6Qmp3TehmsE7NwY86dFaHxMbGBzvJJ6raSx8Lf 4CCFqQILx8mtuOdkwTwabcCPCL4IVjnRZ+SCY7zDG7dSv5GNhp 4T4u9ba2AscYYwOLOVM01nme36p2GMdTRKkD/SUb48OlFegcDL MIhXJyzXfyUOf2uNs7JH45m3tZG+Hy7wqzOmuRew==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .65e5c4 -- 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_65e5c4: w6D5n2kfpY6auhEDHXKSb/H/BOWM6WgEc6FfMBSdkMHXBvE1+Y IOGK/LM5d2q3t2qdnE9ta80pfo5O0Hojoo5eUNwFPkZgZT41Zj AnZdnTbsw8Bo6Qmp3TehmsE7NwY86dFaHxMbGBzvJJ6raSx8Lf 4CCFqQILx8mtuOdkwTwabcCPCL4IVjnRZ+SCY7zDG7dSv5GNhp 4T4u9ba2AscYYwOLOVM01nme36p2GMdTRKkD/SUb48OlFegcDL MIhXJyzXfyUOf2uNs7JH45m3tZG+Hy7wqzOmuRew==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .65e5c4 -- 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_65e5c4: w6D5n2kfpY6auhEDHXKSb/H/BOWM6WgEc6FfMBSdkMHXBvE1+Y IOGK/LM5d2q3t2qdnE9ta80pfo5O0Hojoo5eUNwFPkZgZT41Zj AnZdnTbsw8Bo6Qmp3TehmsE7NwY86dFaHxMbGBzvJJ6raSx8Lf 4CCFqQILx8mtuOdkwTwabcCPCL4IVjnRZ+SCY7zDG7dSv5GNhp 4T4u9ba2AscYYwOLOVM01nme36p2GMdTRKkD/SUb48OlFegcDL MIhXJyzXfyUOf2uNs7JH45m3tZG+Hy7wqzOmuRew==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\Admin\AppData\Roaming\65E5C4-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .65e5c4 -- 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_65e5c4: w6D5n2kfpY6auhEDHXKSb/H/BOWM6WgEc6FfMBSdkMHXBvE1+Y IOGK/LM5d2q3t2qdnE9ta80pfo5O0Hojoo5eUNwFPkZgZT41Zj AnZdnTbsw8Bo6Qmp3TehmsE7NwY86dFaHxMbGBzvJJ6raSx8Lf 4CCFqQILx8mtuOdkwTwabcCPCL4IVjnRZ+SCY7zDG7dSv5GNhp 4T4u9ba2AscYYwOLOVM01nme36p2GMdTRKkD/SUb48OlFegcDL MIhXJyzXfyUOf2uNs7JH45m3tZG+Hy7wqzOmuRew==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .65e5c4 -- 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_65e5c4: w6D5n2kfpY6auhEDHXKSb/H/BOWM6WgEc6FfMBSdkMHXBvE1+Y IOGK/LM5d2q3t2qdnE9ta80pfo5O0Hojoo5eUNwFPkZgZT41Zj AnZdnTbsw8Bo6Qmp3TehmsE7NwY86dFaHxMbGBzvJJ6raSx8Lf 4CCFqQILx8mtuOdkwTwabcCPCL4IVjnRZ+SCY7zDG7dSv5GNhp 4T4u9ba2AscYYwOLOVM01nme36p2GMdTRKkD/SUb48OlFegcDL MIhXJyzXfyUOf2uNs7JH45m3tZG+Hy7wqzOmuRew==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .65e5c4 -- 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_65e5c4: w6D5n2kfpY6auhEDHXKSb/H/BOWM6WgEc6FfMBSdkMHXBvE1+Y IOGK/LM5d2q3t2qdnE9ta80pfo5O0Hojoo5eUNwFPkZgZT41Zj AnZdnTbsw8Bo6Qmp3TehmsE7NwY86dFaHxMbGBzvJJ6raSx8Lf 4CCFqQILx8mtuOdkwTwabcCPCL4IVjnRZ+SCY7zDG7dSv5GNhp 4T4u9ba2AscYYwOLOVM01nme36p2GMdTRKkD/SUb48OlFegcDL MIhXJyzXfyUOf2uNs7JH45m3tZG+Hy7wqzOmuRew==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .65e5c4 -- 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_65e5c4: w6D5n2kfpY6auhEDHXKSb/H/BOWM6WgEc6FfMBSdkMHXBvE1+Y IOGK/LM5d2q3t2qdnE9ta80pfo5O0Hojoo5eUNwFPkZgZT41Zj AnZdnTbsw8Bo6Qmp3TehmsE7NwY86dFaHxMbGBzvJJ6raSx8Lf 4CCFqQILx8mtuOdkwTwabcCPCL4IVjnRZ+SCY7zDG7dSv5GNhp 4T4u9ba2AscYYwOLOVM01nme36p2GMdTRKkD/SUb48OlFegcDL MIhXJyzXfyUOf2uNs7JH45m3tZG+Hy7wqzOmuRew==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .65e5c4 -- 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_65e5c4: w6D5n2kfpY6auhEDHXKSb/H/BOWM6WgEc6FfMBSdkMHXBvE1+Y IOGK/LM5d2q3t2qdnE9ta80pfo5O0Hojoo5eUNwFPkZgZT41Zj AnZdnTbsw8Bo6Qmp3TehmsE7NwY86dFaHxMbGBzvJJ6raSx8Lf 4CCFqQILx8mtuOdkwTwabcCPCL4IVjnRZ+SCY7zDG7dSv5GNhp 4T4u9ba2AscYYwOLOVM01nme36p2GMdTRKkD/SUb48OlFegcDL MIhXJyzXfyUOf2uNs7JH45m3tZG+Hy7wqzOmuRew==}
URLs

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 3 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.

  • 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.

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9a9bf626d4a3e9afe613f7eaa347acac600de2aecc45a5706aa2ba386625eed6.exe
    "C:\Users\Admin\AppData\Local\Temp\9a9bf626d4a3e9afe613f7eaa347acac600de2aecc45a5706aa2ba386625eed6.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:4064
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:1048
    • C:\Windows\SysWOW64\notepad.exe
      C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\65E5C4-Readme.txt"
      2⤵
        PID:1224
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\B2EA.tmp.bat"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5284
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /PID 4064
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:8092
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4492

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    File Deletion

    2
    T1107

    Credential Access

    Credentials in Files

    1
    T1081

    Collection

    Data from Local System

    1
    T1005

    Impact

    Inhibit System Recovery

    2
    T1490

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\B2EA.tmp.bat
      MD5

      c7389bcb87cc62387201ebcbe8a316b0

      SHA1

      b1e189101867263503cd27249bc7efa27ac9c643

      SHA256

      72e2f3f86bb0ccf57f6521bdb16b475f00068dccbd57405a9e5aa733b72e4e2c

      SHA512

      57df29244a496fed0ec27790a9c9b252d49ebe7fdc7dbd54f43cd85b4eb98c74c006531b50ac8405e323c1df41eb14368c98ae47a4637bb13127cc0ec8d048ba

    • C:\Users\Admin\Desktop\65E5C4-Readme.txt
      MD5

      a2f771eccca95561dca0d4352637a1d4

      SHA1

      3aa720dfb45c44180ce3ddf61b409bf5c164c2c1

      SHA256

      e7b48142f6a936de72840d673a64ba41b4b3a1252c714bcd6824505c4d950568

      SHA512

      8c7e57326656e81aceb568efb95dd72565c14842af35cb33d487b9a4d151b3feffe4ce23517aad06c8d170ab3e3bdad3d945ae53dfefd75aadc3c4e8ba3ad32d

    • memory/1048-114-0x0000000000000000-mapping.dmp
    • memory/1224-115-0x0000000000000000-mapping.dmp
    • memory/5284-116-0x0000000000000000-mapping.dmp
    • memory/8092-118-0x0000000000000000-mapping.dmp