Overview

overview

10

Static

static

10

162ae350c4...98.exe

windows7_x64

10

162ae350c4...98.exe

windows10_x64

10

Analysis

  • max time kernel
    137s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 20:17

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General

  • Target

    162ae350c47c2e14864d0c0f927bf424eb6b844017329c9b1e216f3e2d724d98.exe

  • Size

    69KB

  • MD5

    18c32583a6fe320b4dc66a251be45e64

  • SHA1

    c3d0c0568fa08b94172d88fc0c0795cf7da31b60

  • SHA256

    162ae350c47c2e14864d0c0f927bf424eb6b844017329c9b1e216f3e2d724d98

  • SHA512

    3faaed3f4aeda3f04a9325e20e9df5e907239c9329913d688009f008763b6960956df87d84c5cc809e2c9cbcbc9da12e6b0f6745c69e3ade3e0ad2ff0f747c1c

Score
10/10
netwalkerpersistenceransomwarespyware

Malware Config

Extracted

Path

C:\ProgramData\Adobe\Updater6\E4E0A7-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e4e0a7 -- 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_e4e0a7: kkfDdOcMUT8yb+jldLKqt0sNPtPy1H7qB8vkzpcPnLgGajVRWn mY6xuui0A8NQhUY+TntV+trBfuMYcPRjQIrT+69QtcoDJaxPhX awYq/OgihY814pPB1iBtUFsALyZjQ2WCaXzOeqUBhXQasVTIse zj3gnFPFK71TRiKAWMJohRztye+2OkIZsGUxmruIG2OypBgKA8 pKj39SyaE2HqqYM//Tb45xRp+gsZ5lFF6VYmpwfML57GeWV/md YSvu5E21g084GVz6Z5hpKR2EbAaKFGpZI7WQQnAw==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\Admin\AppData\Roaming\E4E0A7-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e4e0a7 -- 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_e4e0a7: kkfDdOcMUT8yb+jldLKqt0sNPtPy1H7qB8vkzpcPnLgGajVRWn mY6xuui0A8NQhUY+TntV+trBfuMYcPRjQIrT+69QtcoDJaxPhX awYq/OgihY814pPB1iBtUFsALyZjQ2WCaXzOeqUBhXQasVTIse zj3gnFPFK71TRiKAWMJohRztye+2OkIZsGUxmruIG2OypBgKA8 pKj39SyaE2HqqYM//Tb45xRp+gsZ5lFF6VYmpwfML57GeWV/md YSvu5E21g084GVz6Z5hpKR2EbAaKFGpZI7WQQnAw==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e4e0a7 -- 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_e4e0a7: kkfDdOcMUT8yb+jldLKqt0sNPtPy1H7qB8vkzpcPnLgGajVRWn mY6xuui0A8NQhUY+TntV+trBfuMYcPRjQIrT+69QtcoDJaxPhX awYq/OgihY814pPB1iBtUFsALyZjQ2WCaXzOeqUBhXQasVTIse zj3gnFPFK71TRiKAWMJohRztye+2OkIZsGUxmruIG2OypBgKA8 pKj39SyaE2HqqYM//Tb45xRp+gsZ5lFF6VYmpwfML57GeWV/md YSvu5E21g084GVz6Z5hpKR2EbAaKFGpZI7WQQnAw==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files (x86)\Microsoft Office\Stationery\1033\E4E0A7-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e4e0a7 -- 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_e4e0a7: kkfDdOcMUT8yb+jldLKqt0sNPtPy1H7qB8vkzpcPnLgGajVRWn mY6xuui0A8NQhUY+TntV+trBfuMYcPRjQIrT+69QtcoDJaxPhX awYq/OgihY814pPB1iBtUFsALyZjQ2WCaXzOeqUBhXQasVTIse zj3gnFPFK71TRiKAWMJohRztye+2OkIZsGUxmruIG2OypBgKA8 pKj39SyaE2HqqYM//Tb45xRp+gsZ5lFF6VYmpwfML57GeWV/md YSvu5E21g084GVz6Z5hpKR2EbAaKFGpZI7WQQnAw==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e4e0a7 -- 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_e4e0a7: kkfDdOcMUT8yb+jldLKqt0sNPtPy1H7qB8vkzpcPnLgGajVRWn mY6xuui0A8NQhUY+TntV+trBfuMYcPRjQIrT+69QtcoDJaxPhX awYq/OgihY814pPB1iBtUFsALyZjQ2WCaXzOeqUBhXQasVTIse zj3gnFPFK71TRiKAWMJohRztye+2OkIZsGUxmruIG2OypBgKA8 pKj39SyaE2HqqYM//Tb45xRp+gsZ5lFF6VYmpwfML57GeWV/md YSvu5E21g084GVz6Z5hpKR2EbAaKFGpZI7WQQnAw==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .e4e0a7 -- 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_e4e0a7: kkfDdOcMUT8yb+jldLKqt0sNPtPy1H7qB8vkzpcPnLgGajVRWn mY6xuui0A8NQhUY+TntV+trBfuMYcPRjQIrT+69QtcoDJaxPhX awYq/OgihY814pPB1iBtUFsALyZjQ2WCaXzOeqUBhXQasVTIse zj3gnFPFK71TRiKAWMJohRztye+2OkIZsGUxmruIG2OypBgKA8 pKj39SyaE2HqqYM//Tb45xRp+gsZ5lFF6VYmpwfML57GeWV/md YSvu5E21g084GVz6Z5hpKR2EbAaKFGpZI7WQQnAw==}
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 3 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 7501 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 19505 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\162ae350c47c2e14864d0c0f927bf424eb6b844017329c9b1e216f3e2d724d98.exe
    "C:\Users\Admin\AppData\Local\Temp\162ae350c47c2e14864d0c0f927bf424eb6b844017329c9b1e216f3e2d724d98.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:1940
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:1412
    • C:\Windows\SysWOW64\notepad.exe
      C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\E4E0A7-Readme.txt"
      2⤵
        PID:5608
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c "C:\Users\Admin\AppData\Local\Temp\2AB8.tmp.bat"
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:5720
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /PID 1940
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:5920
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Modifies service
      • Suspicious use of AdjustPrivilegeToken
      PID:7896

    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\2AB8.tmp.bat
      MD5

      d8fe8a214fba930a39f6aab3a344889b

      SHA1

      52961dd3e863088363abebec9a629d73a1365917

      SHA256

      64eb1fe708c2f9dfc2468f4467cec20d6e83b93051763b31d1be7289d42d4e68

      SHA512

      e3dba09e135665fa6b7f5907ec54bffca0596a0dbd2a87d42b8306ca1fbce137e40c26de29b79312121ec761682311d94d130eb53e087fc79e805a6ba8d5a90a

      Download Submit
    • C:\Users\Admin\Desktop\E4E0A7-Readme.txt
      MD5

      e8b552facdf573ed5f2ae514c9a879ab

      SHA1

      82d78d9cd9ddca3e55cb1cb4f92fe6c872af0568

      SHA256

      b3ce97abf2810f2490cd6f010fda3f1b6f6179fbc2b96baacc339f1ba00977f2

      SHA512

      0e03082970a12ad21224c5894c5ad61a836718e448ae83df03533b4fba65f1d53ba9092416a343f5f471b0f90cd31409da7081db61b65ec839496c95292cef61

      Download Submit
    • memory/1412-0-0x0000000000000000-mapping.dmp
      Download
    • memory/5608-4-0x0000000000000000-mapping.dmp
      Download
    • memory/5720-7-0x0000000000000000-mapping.dmp
      Download
    • memory/5920-12-0x0000000000000000-mapping.dmp
      Download