General

  • Target

    31d0f82a620738c929e8a088b5d3c884efa0350483a0f5af1ae80739fb6f547a

  • Size

    69KB

  • Sample

    220201-byncgsegfm

  • MD5

    4343ea4f4eee159412243261ef9e2883

  • SHA1

    7e3f802c345dc6a362d728fb388ff2938486cf28

  • SHA256

    31d0f82a620738c929e8a088b5d3c884efa0350483a0f5af1ae80739fb6f547a

  • SHA512

    c0062b4012867b7e38957f932e824e82898bcfd6a401eb7b409767ac69c03b7a033dcccb0dadf43261951ed958c79cd67c4f8c7b2208993e5d95f7e2f4a105cc

Malware Config

Extracted

Path

C:\Users\Public\Libraries\370311-Readme.txt

Ransom Note
Hello, O2MICRO. Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .370311 -- 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. -- *** We have downloaded your documents, databases, documents of your customers, correspondence. We are ready to put everything in public access. Contact us in chat. *** -- 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_370311: A9C9Otc+ccTICDYCFRoDayPLQEZNF/JDsgAFrZnqmCoRRITw+o Q0+CsuYQaAAchC8dpHJWztZ5YlexyjaEQdvLNnUtTIYEhMEXt0 VGh2VKKue8DRx+stfCwu+SsUXqkTmLngk19dIWBVfs0WL+1MRL zqTXWJaKddygjwyGwaIQrfVEKiWGRScLuLDXAHrrLvDYnoYlDB 5zbvUUkH/jtC8gtIE9TGuBarp/+R0CgP/kH+kJI39xIaeS3O/e b/1lqsJ9AtSWbECuPIeOnL+dthiu34E62bYx0LHQ==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\Admin\AppData\Local\ConnectedDevicesPlatform\35D5F9-Readme.txt

Ransom Note
Hello, O2MICRO. Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .35d5f9 -- 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. -- *** We have downloaded your documents, databases, documents of your customers, correspondence. We are ready to put everything in public access. Contact us in chat. *** -- 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_35d5f9: /0ATmz7sF3BX2D+m+WE49og36NduTNdMozReLDiGJoi7K4VE11 gkljG636/DNS+kiBdTfwo6BN4hYzlLNS2oWMX8Z3FQkggbEXt0 VHZYrDDDMsMppzablPkT5jBe0FH/YDnxuBrBlUGq3esXDsKumL jJnZDKUAj8ZPCKzw4Mpy1hXcMpoccrizKK4eJQwVLO5T7lQ/vA BXQ3aRuBZQ9SfmimiuHMGQ1OfVVi6r1Rj9ClkSIfyq+fFPeeuB aB7vxX2B/w4QmIIvAFIhBhqLS3UTzRS5ZehAtBNw==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Targets

    • Target

      31d0f82a620738c929e8a088b5d3c884efa0350483a0f5af1ae80739fb6f547a

    • Size

      69KB

    • MD5

      4343ea4f4eee159412243261ef9e2883

    • SHA1

      7e3f802c345dc6a362d728fb388ff2938486cf28

    • SHA256

      31d0f82a620738c929e8a088b5d3c884efa0350483a0f5af1ae80739fb6f547a

    • SHA512

      c0062b4012867b7e38957f932e824e82898bcfd6a401eb7b409767ac69c03b7a033dcccb0dadf43261951ed958c79cd67c4f8c7b2208993e5d95f7e2f4a105cc

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • 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

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

Tasks