General

  • Target

    15a4cd4a7baca3961fb0113164434c535af85cedd54744e14a4d4d7b106dd060

  • Size

    66KB

  • Sample

    220201-b1brgaeghm

  • MD5

    0ff5949ed496df2664684a8aa2d76f10

  • SHA1

    317943d31536d561bc517c24eb1736d63d6d569f

  • SHA256

    15a4cd4a7baca3961fb0113164434c535af85cedd54744e14a4d4d7b106dd060

  • SHA512

    0d4337506cdd4e4170839dfe527f4c43cfef4dcf6479e19e18747b84cf102837f90aa3bf3a5229a504c4d4429c885b2999191c6810bcadf60810ac423caad1d9

Malware Config

Extracted

Path

C:\Program Files\Java\jre7\bin\server\267A51-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .267a51 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_267a51: qMvHL8Xt87O6De4HjemAMCi3Ute5rx6lNxq+tZesKHzZw8Aq2f YS5qY0QFtQrJ5/DSH3x2iNGVmK3zWS6JJo9CKq86rV6f0/0o4I +Lp9pk1YOfrAQaiPzg+ar6cWu+Di8GRS4jDjrCe4hf2Wzg0gLD wRbFG0WyDofk9i6OkBpbHnvY7EZcGQYM0HtGcEXnAxhN8Z88Tg Ci2dV2SSyV+peheahumBg8drgYpAZDn5fFxx5k16lk0Zvxw+vM M8xkjBfS64gOWmEpyfK4LkdKLLIM30tJkvnspQ+w==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files\28C24B-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .28c24b -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_28c24b: U9RQZHBpvuM/WDUYL6+9n7JaJM1uA3Ul6T3w6AWJDooo7GtJyW iBq4GefekVG7y1zxkKD7lswHks0ezd0yn/y00P/MCW229g0o4I +CsVIrolfVDN72PyQfN0GizIoMxPQHwFI5gHPgMVclTvvP5C/4 0B1oyQtPJ4pmyBHiYIV1p39olAbow31hFib3MFhmBr6I680vwW dwx0nTbK2aYS/cCJgAkraVdg1Ffl9baT2CZ1MqNHDeCl8/6ktF Pj1H1+KiffNA4c8n/Tk1bjfVnao2UJi7zUf+4BSQ==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Targets

    • Target

      15a4cd4a7baca3961fb0113164434c535af85cedd54744e14a4d4d7b106dd060

    • Size

      66KB

    • MD5

      0ff5949ed496df2664684a8aa2d76f10

    • SHA1

      317943d31536d561bc517c24eb1736d63d6d569f

    • SHA256

      15a4cd4a7baca3961fb0113164434c535af85cedd54744e14a4d4d7b106dd060

    • SHA512

      0d4337506cdd4e4170839dfe527f4c43cfef4dcf6479e19e18747b84cf102837f90aa3bf3a5229a504c4d4429c885b2999191c6810bcadf60810ac423caad1d9

    • Netwalker Ransomware

      Ransomware family with multiple versions. Also known as MailTo.

    • 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