General

  • Target

    949fae98b348c681b12e5aa825316313e1d161e7a4d93e3062d97be310404f65

  • Size

    66KB

  • Sample

    220201-btqxtafcb9

  • MD5

    b5f8b0a1e57ea0bebe817de50e3b34b7

  • SHA1

    f2955890b2aef6f7ad29ed3a2efea425e1851fea

  • SHA256

    949fae98b348c681b12e5aa825316313e1d161e7a4d93e3062d97be310404f65

  • SHA512

    95e82028bc3de2885caaa316787eb056e06fa6b599d98b6e35505bd77a56a300c8bb5197cacf3332fe26008f432654aefc1fdcbbb6ddb5aa0b316d7f16f10899

Malware Config

Extracted

Path

C:\9F6461-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .9f6461 -- 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_9f6461: ee4x4Twt5N59Nobu3jKMa49MNR7zXKTZcbMWNU0x0cXZrXj5rl pJ5W/WIKZvwSvKB0MDSV6lagckVrTrYI4oqXgY+AJwFzlp0o4I +PpSXcGNVjrt6J2i1B4otfUMjli42pdJMr6A57VtAss8UOtp38 sJABQa534RhhwUrfM3wsrgc4Qb2XI18g+aNMNA3xrQYk5nxJ7E 7rVAMOUSzeHbysKNCE535u1vTcMaqjxxgHHd2krJ71JUO/YSEJ GWSmPfnkZNTp3dSVc2Q9OLwAr6mOgfUDaArtiElA==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Targets

    • Target

      949fae98b348c681b12e5aa825316313e1d161e7a4d93e3062d97be310404f65

    • Size

      66KB

    • MD5

      b5f8b0a1e57ea0bebe817de50e3b34b7

    • SHA1

      f2955890b2aef6f7ad29ed3a2efea425e1851fea

    • SHA256

      949fae98b348c681b12e5aa825316313e1d161e7a4d93e3062d97be310404f65

    • SHA512

      95e82028bc3de2885caaa316787eb056e06fa6b599d98b6e35505bd77a56a300c8bb5197cacf3332fe26008f432654aefc1fdcbbb6ddb5aa0b316d7f16f10899

    • 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.

    • Sets service image path in registry

    • 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

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Deletion

2
T1107

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks