General

  • Target

    55a32decdd9625245bf064c832962bf2271bff8bb5b8d8fb1bc6ec06dae4aea6

  • Size

    148KB

  • Sample

    220201-bxlghafce6

  • MD5

    d3a3064a627830136702bc0049a7ce0f

  • SHA1

    3f23d300afca6d90ef710dc9aeaa44f5e4f362a5

  • SHA256

    55a32decdd9625245bf064c832962bf2271bff8bb5b8d8fb1bc6ec06dae4aea6

  • SHA512

    a744f192a1cefc0a3bfbdd54d4a78245f8301c6fd7efe0e1eb16cc8a9d63c16b5667b1c003ddbf0a89bad47325acfa3b0bd65eaa638bbe207ef3c8e21c73902e

Malware Config

Extracted

Path

C:\Program Files\VideoLAN\VLC\lua\meta\reader\4C2778-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .4c2778 -- 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_4c2778: QOwHuZqOHi3EYhjGzarxtldZUmx78l3aQJqpr79k8h5edTD/Nv B2au/3XEB2p9Jp+4wL+cC8sCA2MWBvOnvePO0mYI1lq9FO41Zj AhDwuYpiafNIRcfQSkbABqj5v55yXjYLef9P5VHvqIIHSAQapW ys3sNNsi6RRv8UNNJk97duY0VHTflmhhwZYSdaJGIFlVx1DnKs fqGYWt/SM9wcOmRFCdr6TQEh7hkVNPLCC5Qfv0YZUp4GVNlThX DWAK9j6euyWEWorPn+QtXtOuMlUDaKzFcbjO616g==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\odt\F90D05-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .f90d05 -- 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_f90d05: RO+ew5Ya06bVI9iypFOc8nbmr/LZcgZ87wPUhRAi4frWyRsKd3 7n4jpB9fxBkZA7oW0waC9mVEl4+U5pQFZZgYJbaaw3hNN541Zj AmtaQVRYqFzChEpI0oOVmw68wd7PAmUFgLZUe4YASw1+HaV37w DhMyGVQyNyxg4VYHnHVQUrzOXMuhNwFn4yqNHqfHyrZiMSCYgU y3QVyyjouHsBBfGUdpmr4Nnli1unYv1Eii1DB54smgiA21lbbv pYsbnaMmGDLlTnAtEuJAroQtsNYGO11yQ1K4o/Sw==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Targets

    • Target

      55a32decdd9625245bf064c832962bf2271bff8bb5b8d8fb1bc6ec06dae4aea6

    • Size

      148KB

    • MD5

      d3a3064a627830136702bc0049a7ce0f

    • SHA1

      3f23d300afca6d90ef710dc9aeaa44f5e4f362a5

    • SHA256

      55a32decdd9625245bf064c832962bf2271bff8bb5b8d8fb1bc6ec06dae4aea6

    • SHA512

      a744f192a1cefc0a3bfbdd54d4a78245f8301c6fd7efe0e1eb16cc8a9d63c16b5667b1c003ddbf0a89bad47325acfa3b0bd65eaa638bbe207ef3c8e21c73902e

    • 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