General

  • Target

    5d869c0e077596bf0834f08dce062af1477bf09c8f6aa0a45d6a080478e45512.exe

  • Size

    69KB

  • Sample

    220530-nv1jvsgah8

  • MD5

    c0bf14556a1563cea82f34b0faf70822

  • SHA1

    e6e232fa7cc93f11bf63487066adccd02006f214

  • SHA256

    5d869c0e077596bf0834f08dce062af1477bf09c8f6aa0a45d6a080478e45512

  • SHA512

    0b23ec04e88a5152ed3fbd2d4927f543ea756c269ea06d93daacdd57a5a88bafbb7fb556764bc4a1532dfe2003ba4ad191fc259121d3ce685d76489d7c4afc42

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\331BD1-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .331bd1 -- 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, your data may have been stolen and if you do not cooperate with us, it will become publicly available on our blog. -- 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_331bd1: RBISJFd3UH1kw21NEtgrhKq+Zs7iDdgSFg+HqM0FVKtoAmhccc UUfMsIkwooIxmoAkBeQprv1srZyu54t8yfZH4lYTw7+8cXNp6R qoTPWel0hMYqiZyRWzlV54CeRVp79bV8feEOsAcfLcK1hk52pq WzVnRKIVurA2Z1CJ9UcWqV3UzzaytG6Br2k1P/rWgpnsl8aPZT ft+9AA/g+QJBGIbNK8fLOtgicPUOkC2JMEl/4mmNy60kVBmxVP U1oTMsAeLDG+Y4NWc1TuwY2nwJyRbv1YXSdewuYw==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\Admin\Desktop\9D03EF-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .9d03ef -- 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, your data may have been stolen and if you do not cooperate with us, it will become publicly available on our blog. -- 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_9d03ef: cwjzB1Qc/lng9bZHptHYmiUezO80ktyl37YDTsIkspSWAIy2f9 ZRofcqUJVr0/2E+hDqTWzOvBpw2iOA7sGHBiOV3nMWy3J6Np6R qqtqmM1fmM4jK1z0N1subsR+JHEkI3Eyd16p2ccfxDkwY8qrac +dIls6MF+CFcMAZMdHjIK+xvZ+TCaGbmQsJMYmbsnes3auqlmH /QLc9TWdWIQTX7J11njLhvYkCa2iolkzDfyh+H7mHGswBysf0C uuTVMlGN7IRoqYyU9jAfDImjfsTcQS/VLzIvoeyQ==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Targets

    • Target

      5d869c0e077596bf0834f08dce062af1477bf09c8f6aa0a45d6a080478e45512.exe

    • Size

      69KB

    • MD5

      c0bf14556a1563cea82f34b0faf70822

    • SHA1

      e6e232fa7cc93f11bf63487066adccd02006f214

    • SHA256

      5d869c0e077596bf0834f08dce062af1477bf09c8f6aa0a45d6a080478e45512

    • SHA512

      0b23ec04e88a5152ed3fbd2d4927f543ea756c269ea06d93daacdd57a5a88bafbb7fb556764bc4a1532dfe2003ba4ad191fc259121d3ce685d76489d7c4afc42

    • 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.

    • 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

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