General
Target

de04d2402154f676f757cf1380671f396f3fc9f7dbb683d9461edd2718c4e09d

Size

94KB

Sample

211020-lbfn8shgdq

Score
10/10
MD5

993b73d6490bc5a7e23e02210b317247

SHA1

6fd314af34409e945504e166eb8cd88127c1070e

SHA256

de04d2402154f676f757cf1380671f396f3fc9f7dbb683d9461edd2718c4e09d

SHA512

417f55a066896695ce1b8d998767f706005d3d6f1792f2b86261a235034a6c3bb1deae6920857fbc710d22b833479b2cbeafd92735381f1cc357adcc8a74c55d

Malware Config

Extracted

Path

C:\odt\A2D63-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .a2d63 -- 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 and even god will not be able to help you, it could be files on the network belonging to other users, sure you want to take that responsibility? -- Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help. 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 decrypt program, you may damage them and then they will be impossible to recover. We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned. For us this is just business and to prove to you our seriousness, we will decrypt you some files for free, but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision. Contact us: 1.knoocknoo@cock.li 2.eeeooppaaaxxx@tuta.io Don't forget to include your code in the email: {code_1b1ea859_a2d63: V6RDuHNbgGVtcrSKiRSkrbCAyttmSwsQGYnMn/65kF0q6XqaDg /cnVmF7YfLsLd35MG01hBug/9yPfooToj/DygT5yfR6a13Wage G/ThEh+Q3vJA+Hq2FJsKBluPwAp1YKyCMSCZkgoi4lib93nYH6 YcdTLnlXnOhSQGQrbeH9uBfZidXpQ2xYqU9Xr+rRiBvfncbVzG bFhtujPNAyiizLAl+vel3YFnNdEFCCIKLiL1YkvaZ8GfScF5JT GwVO3gVx4soWUVnVrBfj9EwX/AcSkfmCM=}
Emails

knoocknoo@cock.li

eeeooppaaaxxx@tuta.io

Extracted

Path

C:\Users\Admin\AppData\Roaming\A2D63-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .a2d63 -- 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 and even god will not be able to help you, it could be files on the network belonging to other users, sure you want to take that responsibility? -- Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help. 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 decrypt program, you may damage them and then they will be impossible to recover. We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned. For us this is just business and to prove to you our seriousness, we will decrypt you some files for free, but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision. Contact us: 1.knoocknoo@cock.li 2.eeeooppaaaxxx@tuta.io Don't forget to include your code in the email: {code_1b1ea859_a2d63: V6RDuHNbgGVtcrSKiRSkrbCAyttmSwsQGYnMn/65kF0q6XqaDg /cnVmF7YfLsLd35MG01hBug/9yPfooToj/DygT5yfR6a13Wage G/ThEh+Q3vJA+Hq2FJsKBluPwAp1YKyCMSCZkgoi4lib93nYH6 YcdTLnlXnOhSQGQrbeH9uBfZidXpQ2xYqU9Xr+rRiBvfncbVzG bFhtujPNAyiizLAl+vel3YFnNdEFCCIKLiL1YkvaZ8GfScF5JT GwVO3gVx4soWUVnVrBfj9EwX/AcSkfmCM=}Hi! Your files are encrypted. All encrypted files for this computer has extension: .a2d63 -- 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 and even god will not be able to help you, it could be files on the network belonging to other users, sure you want to take that responsibility? -- Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help. 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 decrypt program, you may damage them and then they will be impossible to recover. We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned. For us this is just business and to prove to you our seriousness, we will decrypt you some files for free, but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision. Contact us: 1.knoocknoo@cock.li 2.eeeooppaaaxxx@tuta.io Don't forget to include your code in the email: {code_1b1ea859_a2d63: V6RDuHNbgGVtcrSKiRSkrbCAyttmSwsQGYnMn/65kF0q6XqaDg /cnVmF7YfLsLd35MG01hBug/9yPfooToj/DygT5yfR6a13Wage G/ThEh+Q3vJA+Hq2FJsKBluPwAp1YKyCMSCZkgoi4lib93nYH6 YcdTLnlXnOhSQGQrbeH9uBfZidXpQ2xYqU9Xr+rRiBvfncbVzG bFhtujPNAyiizLAl+vel3YFnNdEFCCIKLiL1YkvaZ8GfScF5JT GwVO3gVx4soWUVnVrBfj9EwX/AcSkfmCM=}
Emails

knoocknoo@cock.li

eeeooppaaaxxx@tuta.io

Targets
Target

de04d2402154f676f757cf1380671f396f3fc9f7dbb683d9461edd2718c4e09d

MD5

993b73d6490bc5a7e23e02210b317247

Filesize

94KB

Score
10/10
SHA1

6fd314af34409e945504e166eb8cd88127c1070e

SHA256

de04d2402154f676f757cf1380671f396f3fc9f7dbb683d9461edd2718c4e09d

SHA512

417f55a066896695ce1b8d998767f706005d3d6f1792f2b86261a235034a6c3bb1deae6920857fbc710d22b833479b2cbeafd92735381f1cc357adcc8a74c55d

Tags

Signatures

  • Detected Netwalker Ransomware

    Description

    Detected unpacked Netwalker executable.

  • Netwalker Ransomware

    Description

    Ransomware family with multiple versions. Also known as MailTo.

    Tags

  • Deletes shadow copies

    Description

    Ransomware often targets backup files to inhibit system recovery.

    Tags

    TTPs

    File DeletionInhibit System Recovery
  • Modifies extensions of user files

    Description

    Ransomware generally changes the extension on encrypted files.

    Tags

  • Deletes itself

  • Adds Run key to start application

    Tags

    TTPs

    Registry Run Keys / Startup FolderModify Registry
  • Suspicious use of SetThreadContext

Related Tasks

MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Discovery
          Execution
            Exfiltration
              Initial Access
                Lateral Movement
                  Privilege Escalation
                    Tasks

                    static1

                    Score
                    10/10

                    behavioral1

                    Score
                    10/10