Overview

overview

10

Static

static

10

de04d24021...9d.exe

windows7_x64

10

de04d24021...9d.exe

windows11_x64

10

de04d24021...9d.exe

windows10_x64

10

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General

  • Target

    sample1.zip

  • Size

    44KB

  • Sample

    211027-k2pt6abcg8

  • MD5

    705677226e7ee03d0546e032624186d2

  • SHA1

    4894c781c1ed8776f657b5cd9c3e7e5a607f9e14

  • SHA256

    80f8525368c2e44c403564a979e4e32aff9247e74aa5f02e206058d648e77bc3

  • SHA512

    d87d356440f146ffad821fd7f62a04dbf45cfed2a3380d8eef4d1e124b4bec163fb19b5350dac01fcd3f8c8c4733f5488611a8e47e69c075dfd81192254a02c4

Score
10/10
netwalkerpersistenceransomware

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: [email protected] [email protected] 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=}

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: [email protected] [email protected] 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=}

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: [email protected] [email protected] 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=}

Targets

    • Target

      de04d2402154f676f757cf1380671f396f3fc9f7dbb683d9461edd2718c4e09d

    • Size

      94KB

    • MD5

      993b73d6490bc5a7e23e02210b317247

    • SHA1

      6fd314af34409e945504e166eb8cd88127c1070e

    • SHA256

      de04d2402154f676f757cf1380671f396f3fc9f7dbb683d9461edd2718c4e09d

    • SHA512

      417f55a066896695ce1b8d998767f706005d3d6f1792f2b86261a235034a6c3bb1deae6920857fbc710d22b833479b2cbeafd92735381f1cc357adcc8a74c55d

    Score
    10/10
    netwalkerpersistenceransomware

    • Detected Netwalker Ransomware

      Detected unpacked Netwalker executable.

    • Netwalker Ransomware

      Ransomware family with multiple versions. Also known as MailTo.

      ransomwarenetwalker

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Deletes itself

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v6

Tasks