sample1.zip

General
Target

sample1.zip

Size

44KB

Sample

211027-k2pt6abcg8

Score
10 /10
MD5

705677226e7ee03d0546e032624186d2

SHA1

4894c781c1ed8776f657b5cd9c3e7e5a607f9e14

SHA256

80f8525368c2e44c403564a979e4e32aff9247e74aa5f02e206058d648e77bc3

SHA512

d87d356440f146ffad821fd7f62a04dbf45cfed2a3380d8eef4d1e124b4bec163fb19b5350dac01fcd3f8c8c4733f5488611a8e47e69c075dfd81192254a02c4

Malware Config

Extracted

Path C:\Users\Admin\Desktop\7C5FC-Readme.txt
Family netwalker
Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .7c5fc -- 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_7c5fc: oQnkiN87TGRzrsE0gTzDlDR9xb2jZjHAwnX0PY/AioYAD+080f UNARlbAznLYec3zzyn2BH/MJGxUTISTaYteCAc/uvGo7J1Wage G6yjUQ1AtIOTsJ0KtOPth5q/33ut3tn7ta101XXQKu35jI+K9d ogzUJJaFJsp78eboRmk+PJrOiDzgyHyJEaWjQ4F3vkW5SqoZHL nurcbhdqh0HF9yiiAFO+d32hgkhE3UAAv9o7+xDSvEVps9UZpm 6rrs9h/5B3Dp/uZhF8oejy8pR50x4ZsyQ=}
Emails

knoocknoo@cock.li

eeeooppaaaxxx@tuta.io

Extracted

Path C:\DFA4F-Readme.txt
Family netwalker
Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .dfa4f -- 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_dfa4f: kLYhH60gP9Qkmun+itwgwdY06DhX1ULsoU6D4RQVzkQ+gyNXxT Y9JXESd8zBe4AYHTHkcQPlJq1w9RiT+liLolGsstIBGl4FWage GxP9W1LQ4GYygFV9fxiO/3ub2f5/SsbrXTyzuOm/JsusEk35nQ K/aEo2m8jZ8VHK0bUsNYHB3SQtdeYZLMIlMco3PFsEZIry/gz4 Fa4kRsnGd9QFNZZ4X49DqhsQoQcaRUDXsMdwk+LcafsXilvnAj Pn4pU8nWCgTQSgy3h+FGTFnxv1bVPM7TQ=}
Emails

knoocknoo@cock.li

eeeooppaaaxxx@tuta.io

Extracted

Path C:\odt\6246D-Readme.txt
Family netwalker
Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .6246d -- 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_6246d: bPPyzruVx0IEGYd6l1fRtCoOhpB2lM0ScdgfnVTajWzHFTBYoW qFlYaKk2tJEwbd2hwQVHsK1KODj2rr+b2R8Rvc11djGZhJWage GwAyuGN8cQ83C+d6WhcvX8eSUcE7AN3uP+cTGgxumWDED/MsNc 8A+KXv/qljM6pc1YeLeUHW+s/kT2OPd7dhX2jQRh9KVVpkAuXX KJkwuF7YOuMW9Tu+Dw2GMnz5aH4gqrtz7GwHM960+pguUiDapL cgLWc0aifGbSzGDMAQw6YhKQkXQPRLaJY=}
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
        Execution
          Exfiltration
            Initial Access
              Lateral Movement
                Privilege Escalation
                  Tasks

                  static1

                  10/10

                  behavioral1

                  10/10

                  behavioral2

                  10/10

                  behavioral3

                  10/10