Analysis

  • max time kernel
    157s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 20:17

General

  • Target

    3b3b9a18d9b9073e9bc94a6e5367d42a2c248274daa70856e3dc4935106e4218.bin.dll

  • Size

    57KB

  • MD5

    961942a472c2dd70b64f33cbf2244c89

  • SHA1

    c7f458f74a063d8dd634f851037b5ba926faa556

  • SHA256

    3b3b9a18d9b9073e9bc94a6e5367d42a2c248274daa70856e3dc4935106e4218

  • SHA512

    fc90d1c67d540f0d975fbc984ce48786504db50331576e6edaf52b168a5bdf3938e69d4ae151a10ba7618ac8550614e2ea0736c19576d4a15fedc50b70261e84

Malware Config

Extracted

Path

C:\ProgramData\Package Cache\{f4220b74-9edd-4ded-bc8b-0342c1e164d8}\012E2E-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .012e2e -- 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_012e2e: 5XTvtIyHer0Lf28UV2VbhHv+ucOwGxZPrKVkhPTVRlac/6gYTH OW4u7VcMEzMqzyoxJIDArIqERK0q3C/P7ErQVtFLi52yE9knW+ E4NcMruNufGc7TUWRel51QyID+yYIe7h1PHVt2E9n42y7GU0mF tNg7/xTZUAiMl6MzubjiCnwKaY1nNW74xZgm87kUg/68LvdDrR wJ91bK9CdXV20Eca3CpbTUms6sd0cPBLIeYJE2draRJyxY68wJ 0AWhRTf4Kofuhy1ynZcp8+Y94oBpccwvKzDkma9w==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\LINES\012E2E-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .012e2e -- 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_012e2e: 5XTvtIyHer0Lf28UV2VbhHv+ucOwGxZPrKVkhPTVRlac/6gYTH OW4u7VcMEzMqzyoxJIDArIqERK0q3C/P7ErQVtFLi52yE9knW+ E4NcMruNufGc7TUWRel51QyID+yYIe7h1PHVt2E9n42y7GU0mF tNg7/xTZUAiMl6MzubjiCnwKaY1nNW74xZgm87kUg/68LvdDrR wJ91bK9CdXV20Eca3CpbTUms6sd0cPBLIeYJE2draRJyxY68wJ 0AWhRTf4Kofuhy1ynZcp8+Y94oBpccwvKzDkma9w==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .012e2e -- 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_012e2e: 5XTvtIyHer0Lf28UV2VbhHv+ucOwGxZPrKVkhPTVRlac/6gYTH OW4u7VcMEzMqzyoxJIDArIqERK0q3C/P7ErQVtFLi52yE9knW+ E4NcMruNufGc7TUWRel51QyID+yYIe7h1PHVt2E9n42y7GU0mF tNg7/xTZUAiMl6MzubjiCnwKaY1nNW74xZgm87kUg/68LvdDrR wJ91bK9CdXV20Eca3CpbTUms6sd0cPBLIeYJE2draRJyxY68wJ 0AWhRTf4Kofuhy1ynZcp8+Y94oBpccwvKzDkma9w==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Signatures

  • Netwalker Ransomware

    Ransomware family with multiple versions. Also known as MailTo.

  • 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 6518 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\3b3b9a18d9b9073e9bc94a6e5367d42a2c248274daa70856e3dc4935106e4218.bin.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1120
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3b3b9a18d9b9073e9bc94a6e5367d42a2c248274daa70856e3dc4935106e4218.bin.dll,#1
      2⤵
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2012

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Replay Monitor

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Downloads

  • memory/2012-0-0x0000000000000000-mapping.dmp