General

  • Target

    4f7bdda79e389d6660fca8e2a90a175307a7f615fa7673b10ee820d9300b5c60.exe

  • Size

    65KB

  • Sample

    220523-xde19sbgc3

  • MD5

    eaef25ab1f59492ffc735a386294b69f

  • SHA1

    76cc795c39cc19465c24825dc5ebafd7f944ea7e

  • SHA256

    4f7bdda79e389d6660fca8e2a90a175307a7f615fa7673b10ee820d9300b5c60

  • SHA512

    a812186ff05baa0c194abc2b4becc145f312b885068773f994658ecac2bfd8e1c85acdfe3774728541ed966f46a872d19fee17a53cc07f3f8e2e94be0cdef1c4

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\User Account Pictures\0A3334-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .0a3334 -- 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. Additionally, you must know that your sensitive data has been stolen by our analyst experts and if you choose to no cooperate with us, you are exposing yourself to huge penalties with lawsuits and government if we both don't find an agreement. We have seen it before; cases with multi million costs in fines and lawsuits, not to mention the company reputation and loosing clients trust and the medias calling non-stop for answers. Come chat with us and you could be surprised on how fast we both can find an agreement without getting this incident public. -- 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_0a3334: Tc6gtxx8+UIIj7zaYuIKa3V9Ww+2dMpZnc22bKk9M8+ylQBVNw UFDIMctpDOR2iM/WB+g1xs+OU+Tepv2+E1MXE1RE4N/soBurP5 yy00Mwpf1axvqEs2BcxUk4iyJ6zVl93MFmyZd0elicSHsEylrg SS7Ip7kAuLiZs8PjVS2eK5gQ0KupN4ub/BUMjXpvkl0Pb0Ievm yXAzRtMcwaPrMn7zMwXrS0iJP3WCvltaINCUdQudzcDdgbJdw7 saPYqXCf8NZEfgP8WwEtt997NVd70maNd13ck3Yg==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\Admin\Desktop\90AFE4-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .90afe4 -- 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. Additionally, you must know that your sensitive data has been stolen by our analyst experts and if you choose to no cooperate with us, you are exposing yourself to huge penalties with lawsuits and government if we both don't find an agreement. We have seen it before; cases with multi million costs in fines and lawsuits, not to mention the company reputation and loosing clients trust and the medias calling non-stop for answers. Come chat with us and you could be surprised on how fast we both can find an agreement without getting this incident public. -- 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_90afe4: +H5J1M4PzRBb6/e+Z1Fx3dEo3Z39LFfzxpKBdtqfNF5RD7W43u kUMbjys5rzRODd5z0ro1/B8x6JZC0JIKWTRGHmXIWAPA0iurP5 yzPkr5Bje/0krsqwp4tX5mJ9VkDmJMOF2DUjkQtMPinKqSl3yI D/O2gOhpaQU0VuYjos8KhySFB1vXZazWxcGZzIkidv/W2W9GPz 7fVwqfRruD0DKGUExjIjWwGQvqxPnESMR8soqYeGtfIPiAxqQG JU2/nNFu0/vYp0AvcQakeQ1AoBChQ1ZcgcQbO3AA==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Targets

    • Target

      4f7bdda79e389d6660fca8e2a90a175307a7f615fa7673b10ee820d9300b5c60.exe

    • Size

      65KB

    • MD5

      eaef25ab1f59492ffc735a386294b69f

    • SHA1

      76cc795c39cc19465c24825dc5ebafd7f944ea7e

    • SHA256

      4f7bdda79e389d6660fca8e2a90a175307a7f615fa7673b10ee820d9300b5c60

    • SHA512

      a812186ff05baa0c194abc2b4becc145f312b885068773f994658ecac2bfd8e1c85acdfe3774728541ed966f46a872d19fee17a53cc07f3f8e2e94be0cdef1c4

    • Netwalker Ransomware

      Ransomware family with multiple versions. Also known as MailTo.

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Deletes itself

    • Reads user/profile data of web browsers

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

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Tasks