General

  • Target

    f4656a9af30e98ed2103194f798fa00fd1686618e3e62fba6b15c9959135b7be

  • Size

    5.1MB

  • Sample

    240923-wewvqsyfmf

  • MD5

    b1f0093b89561c6123070165bd2261e2

  • SHA1

    aac57162dc1311f07a869f7163bd30e0d62dcc0e

  • SHA256

    f4656a9af30e98ed2103194f798fa00fd1686618e3e62fba6b15c9959135b7be

  • SHA512

    637b40a33fc8e5d478128242f621ceefcb158b1d411898fbf4bb2e7352fd214befd58c308297108d631d5b4e4b44f953ac51676b02ef20e8de9dc122ef0ba797

  • SSDEEP

    24576:3lWHR7hoxn6yTYo1oc8UcMIh/MuwL+zn4ltC3O+wXCwNLaLRcfIAM1Bq9p0IQWwS:l

Malware Config

Extracted

Path

C:\Program Files (x86)\Microsoft Analysis Services\AS OLEDB\10\Resources\1033\A0CD44-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .a0cd44 -- 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: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_a0cd44: P7v9XMsx/iNlSEUNnse4CQdHLusAOcAcVqXSOupbx+P0Z/44aC gSpJjhplg49BTJVtIlQEnFbMQ4crvVMzSoQLX79ppur2x7L0Sb SP/YtmfJSHNVjswP0wxxjPrHj9qmsg5kfGFULKEp77gBNQTEnu 63qQH8d64yBnIYJxRSVYI11afSS5I1soegsM9OluntokC6bZop jqdwyvoOt/qOGLB+DnIVPnifQsRglN9ASNlxxaIlQ920a4xN32 QO5dVSYWkC4NnAsSaCpgDyiRXs7m8GI01wmtXSPQ==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files\Crashpad\034FBF-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .034fbf -- 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: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_034fbf: 6pzO0ksWWHns4oqqZZJKdaVFTeItOrhvBJxx/Sy9iBfQpTskzE hasOBh6VNbQ5eJLMO2t3HWtjbHBMpXn6VieRod/y4V9eJ2L0Sb SEOOF14Fb8uB+mkJeANj4Arr/E+HNznRmRRlX/S2WZrV9CGOfo /qCDqgPiGt449qG+ytjYfvyi7e1SYLEQVsasgNf3NmoNRViDUP pBXnCczkFx0BeEEopqv2wRhxdLvutmt4V+axKxGNLCtr1qzp0O ERZwvDKErpp+gM0yXwOR3LnqdNAT+NzKF39q6kDQ==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Targets

    • Target

      f4656a9af30e98ed2103194f798fa00fd1686618e3e62fba6b15c9959135b7be

    • Size

      5.1MB

    • MD5

      b1f0093b89561c6123070165bd2261e2

    • SHA1

      aac57162dc1311f07a869f7163bd30e0d62dcc0e

    • SHA256

      f4656a9af30e98ed2103194f798fa00fd1686618e3e62fba6b15c9959135b7be

    • SHA512

      637b40a33fc8e5d478128242f621ceefcb158b1d411898fbf4bb2e7352fd214befd58c308297108d631d5b4e4b44f953ac51676b02ef20e8de9dc122ef0ba797

    • SSDEEP

      24576:3lWHR7hoxn6yTYo1oc8UcMIh/MuwL+zn4ltC3O+wXCwNLaLRcfIAM1Bq9p0IQWwS:l

    • Netwalker Ransomware

      Ransomware family with multiple versions. Also known as MailTo.

    • Renames multiple (7389) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

MITRE ATT&CK Enterprise v15

Tasks