Overview

overview

10

Static

static

e3e75e15fd...in.dll

windows7_x64

10

e3e75e15fd...in.dll

windows10_x64

10

Analysis

  • max time kernel
    119s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 20:17

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General

  • Target

    e3e75e15fd7f6a8233e33c8a8e127cee36706025451644cf8618a0876fd0e95f.bin.dll

  • Size

    57KB

  • MD5

    997f0ec7fcfa440d58443922651a2b0a

  • SHA1

    6bd08ea17de7987451757b549984a443cf08b401

  • SHA256

    e3e75e15fd7f6a8233e33c8a8e127cee36706025451644cf8618a0876fd0e95f

  • SHA512

    c80320dc518936d88e283dc27a5cab5575d12f6c14af994ec79730aed31c61f89e631db1e04673a0dfa0ef8e56fd1ad4029def2210c3e0a3348c44cc6df11c1f

Score
10/10
netwalkerransomwarespyware

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\MF\F859A1-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .f859a1 -- 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_f859a1: U2wT2FxHbYnBsp9clCydICOMz0xHS9y9qxbwYTxSyUWHonPfMF 0JShF/VkyMO/vileP9Apd62n4brPnmwJQ/d/BaRVzkudYYQNnK oGuxqQefyAbdy1fIdlcNPaB7OcJJCHbVR7XqhD3SsjMRujUj3+ 42tCAnf8VScRw+fe5U2o2Et9sx/8+akPwc+qDQQVfZjUvbyYZJ IICir+oEIXTjFRoRqvZaOUA4GBWaH05Yy+nHnR2ct2xbezvCdu um9sUTOR9yaJM5K9VRwGS0o5+0XxQDHicS9xAGQg==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\Admin\Desktop\F859A1-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .f859a1 -- 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_f859a1: U2wT2FxHbYnBsp9clCydICOMz0xHS9y9qxbwYTxSyUWHonPfMF 0JShF/VkyMO/vileP9Apd62n4brPnmwJQ/d/BaRVzkudYYQNnK oGuxqQefyAbdy1fIdlcNPaB7OcJJCHbVR7XqhD3SsjMRujUj3+ 42tCAnf8VScRw+fe5U2o2Et9sx/8+akPwc+qDQQVfZjUvbyYZJ IICir+oEIXTjFRoRqvZaOUA4GBWaH05Yy+nHnR2ct2xbezvCdu um9sUTOR9yaJM5K9VRwGS0o5+0XxQDHicS9xAGQg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .f859a1 -- 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_f859a1: U2wT2FxHbYnBsp9clCydICOMz0xHS9y9qxbwYTxSyUWHonPfMF 0JShF/VkyMO/vileP9Apd62n4brPnmwJQ/d/BaRVzkudYYQNnK oGuxqQefyAbdy1fIdlcNPaB7OcJJCHbVR7XqhD3SsjMRujUj3+ 42tCAnf8VScRw+fe5U2o2Et9sx/8+akPwc+qDQQVfZjUvbyYZJ IICir+oEIXTjFRoRqvZaOUA4GBWaH05Yy+nHnR2ct2xbezvCdu um9sUTOR9yaJM5K9VRwGS0o5+0XxQDHicS9xAGQg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .f859a1 -- 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_f859a1: U2wT2FxHbYnBsp9clCydICOMz0xHS9y9qxbwYTxSyUWHonPfMF 0JShF/VkyMO/vileP9Apd62n4brPnmwJQ/d/BaRVzkudYYQNnK oGuxqQefyAbdy1fIdlcNPaB7OcJJCHbVR7XqhD3SsjMRujUj3+ 42tCAnf8VScRw+fe5U2o2Et9sx/8+akPwc+qDQQVfZjUvbyYZJ IICir+oEIXTjFRoRqvZaOUA4GBWaH05Yy+nHnR2ct2xbezvCdu um9sUTOR9yaJM5K9VRwGS0o5+0XxQDHicS9xAGQg==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\STS2\F859A1-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .f859a1 -- 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_f859a1: U2wT2FxHbYnBsp9clCydICOMz0xHS9y9qxbwYTxSyUWHonPfMF 0JShF/VkyMO/vileP9Apd62n4brPnmwJQ/d/BaRVzkudYYQNnK oGuxqQefyAbdy1fIdlcNPaB7OcJJCHbVR7XqhD3SsjMRujUj3+ 42tCAnf8VScRw+fe5U2o2Et9sx/8+akPwc+qDQQVfZjUvbyYZJ IICir+oEIXTjFRoRqvZaOUA4GBWaH05Yy+nHnR2ct2xbezvCdu um9sUTOR9yaJM5K9VRwGS0o5+0XxQDHicS9xAGQg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .f859a1 -- 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_f859a1: U2wT2FxHbYnBsp9clCydICOMz0xHS9y9qxbwYTxSyUWHonPfMF 0JShF/VkyMO/vileP9Apd62n4brPnmwJQ/d/BaRVzkudYYQNnK oGuxqQefyAbdy1fIdlcNPaB7OcJJCHbVR7XqhD3SsjMRujUj3+ 42tCAnf8VScRw+fe5U2o2Et9sx/8+akPwc+qDQQVfZjUvbyYZJ IICir+oEIXTjFRoRqvZaOUA4GBWaH05Yy+nHnR2ct2xbezvCdu um9sUTOR9yaJM5K9VRwGS0o5+0XxQDHicS9xAGQg==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Signatures

  • Netwalker Ransomware

    Ransomware family with multiple versions. Also known as MailTo.

    ransomwarenetwalker
  • Modifies extensions of user files 4 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Drops file in Program Files directory 7495 IoCs
  • Suspicious behavior: EnumeratesProcesses 224 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\e3e75e15fd7f6a8233e33c8a8e127cee36706025451644cf8618a0876fd0e95f.bin.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:784
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\e3e75e15fd7f6a8233e33c8a8e127cee36706025451644cf8618a0876fd0e95f.bin.dll,#1
      2⤵
      • Modifies extensions of user files
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1916
      • C:\Windows\SysWOW64\notepad.exe
        C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\F859A1-Readme.txt"
        3⤵
          PID:7420

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\Desktop\F859A1-Readme.txt
      MD5

      ee01380f8efbfbe4949505e27897c566

      SHA1

      89c6affae783e4d67d4cded0cb641ec246b86c26

      SHA256

      de56ac4de0e548cec7ae6f5c1ae4d3aa686aa927eded8e22317544697789f5b8

      SHA512

      93037d1a7eafc9d6fc87af1f64ace2cb68c9e6affbfc6e0f299179b33f554828b9a9cafe176356cdc1ee2557a3566dff66de70356a520df2152bb4904d9d3443

      Download Submit
    • memory/1916-0-0x0000000000000000-mapping.dmp
      Download
    • memory/7420-1-0x0000000000000000-mapping.dmp
      Download