Overview

overview

10

Static

static

skyfall_us...xt.ps1

windows7_x64

10

skyfall_us...xt.ps1

windows10_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    14s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    26-10-2020 08:05

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General

  • Target

    skyfall_user wilsonk_wilsonk_ste.txt.ps1

  • Size

    903KB

  • MD5

    819c083652fb851efcd0454ae9ecae14

  • SHA1

    c440ab6e70fc6d2dff7f7b3478b03a99672d062f

  • SHA256

    1a387a66d0ae9f0aabeb33f46856fcd8d7621d210d87494f696b831f94537f1b

  • SHA512

    3caee374a5ef95453c785afe148d8ec54eaf1136306163c4c9e4352e8a410f05d7759d02ff689298333cfe5b57bc1464a935a9cece336bc328d5edf99cd0bb51

Score
10/10
ransomwarespywarepersistencenetwalker

Malware Config

Extracted

Path

C:\E352FC-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .e352fc -- 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. Additionally, you must know that your sensitive data has been stolen by our analyst experts and if you choose to no cooperate with us, you are exposing yourself to huge penalties with lawsuits and government if we both don't find an agreement. We have seen it before; cases with multi million costs in fines and lawsuits, not to mention the company reputation and losing clients trust and the medias calling non-stop for answers. Come chat with us and you could be surprised on how fast we both can find an agreement without getting this incident public. -- 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_e352fc: q4PmDdcyeK3H4HLQVwHvu5rRhossUsFIOSUZSbPTR77a4HijLO KQQrAkistTBNNOGhc+6dTaxH/5Kz9dzPO9/vzoN3ZM35l53ljs +K38UuOOcuw/uaFNxZPBZruKzGBgNUNDHHVfBxSrN5phHNyXem 4SOVSZoCTOnnzCGNxh59GLLT/1/kVnaXhs39a9YD9lv0uXSS+Y kNx0h0mAzrcUm2xnhe5aU1JzIfo4eQbca0h2JhybbJiut7H5Ex u649+Xt2DDQfW/zL4PhXX0Laqhkyi+jhmfB4ZpTg==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files\E352FC-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .e352fc -- 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. Additionally, you must know that your sensitive data has been stolen by our analyst experts and if you choose to no cooperate with us, you are exposing yourself to huge penalties with lawsuits and government if we both don't find an agreement. We have seen it before; cases with multi million costs in fines and lawsuits, not to mention the company reputation and losing clients trust and the medias calling non-stop for answers. Come chat with us and you could be surprised on how fast we both can find an agreement without getting this incident public. -- 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_e352fc: q4PmDdcyeK3H4HLQVwHvu5rRhossUsFIOSUZSbPTR77a4HijLO KQQrAkistTBNNOGhc+6dTaxH/5Kz9dzPO9/vzoN3ZM35l53ljs +K38UuOOcuw/uaFNxZPBZruKzGBgNUNDHHVfBxSrN5phHNyXem 4SOVSZoCTOnnzCGNxh59GLLT/1/kVnaXhs39a9YD9lv0uXSS+Y kNx0h0mAzrcUm2xnhe5aU1JzIfo4eQbca0h2JhybbJiut7H5Ex u649+Xt2DDQfW/zL4PhXX0Laqhkyi+jhmfB4ZpTg==}Hi! Your files are encrypted. All encrypted files for this computer has extension: .e352fc -- 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. Additionally, you must know that your sensitive data has been stolen by our analyst experts and if you choose to no cooperate with us, you are exposing yourself to huge penalties with lawsuits and government if we both don't find an agreement. We have seen it before; cases with multi million costs in fines and lawsuits, not to mention the company reputation and losing clients trust and the medias calling non-stop for answers. Come chat with us and you could be surprised on how fast we both can find an agreement without getting this incident public. -- 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_e352fc: q4PmDdcyeK3H4HLQVwHvu5rRhossUsFIOSUZSbPTR77a4HijLO KQQrAkistTBNNOGhc+6dTaxH/5Kz9dzPO9/vzoN3ZM35l53ljs +K38UuOOcuw/uaFNxZPBZruKzGBgNUNDHHVfBxSrN5phHNyXem 4SOVSZoCTOnnzCGNxh59GLLT/1/kVnaXhs39a9YD9lv0uXSS+Y kNx0h0mAzrcUm2xnhe5aU1JzIfo4eQbca0h2JhybbJiut7H5Ex u649+Xt2DDQfW/zL4PhXX0Laqhkyi+jhmfB4ZpTg==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Signatures

  • Netwalker Ransomware

    Ransomware family with multiple versions. Also known as MailTo.

    ransomwarenetwalker
  • Modifies extensions of user files 10 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Drops file in Program Files directory 7473 IoCs
  • Suspicious behavior: EnumeratesProcesses 13641 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Modifies extensions of user files
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1212
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -ExecutionPolicy bypass -File "C:\Users\Admin\AppData\Local\Temp\skyfall_user wilsonk_wilsonk_ste.txt.ps1"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:288
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\i5xecy2w\i5xecy2w.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1208
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES3063.tmp" "c:\Users\Admin\AppData\Local\Temp\i5xecy2w\CSCD7CB6F0ECADE44278EA68F6C361FA627.TMP"
          4⤵
            PID:1536
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
          "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\hc0begsd\hc0begsd.cmdline"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:756
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES366C.tmp" "c:\Users\Admin\AppData\Local\Temp\hc0begsd\CSCDA1FBF0786824466B020A9545574A81B.TMP"
            4⤵
              PID:792
        • C:\Windows\system32\notepad.exe
          C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\E352FC-Readme.txt"
          2⤵
            PID:5696
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Modifies service
          • Suspicious use of AdjustPrivilegeToken
          PID:7996

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/288-25-0x000000001A9E0000-0x000000001AA02000-memory.dmp

          Filesize

          136KB

          Download

        • memory/288-13-0x00000000024A0000-0x00000000024A2000-memory.dmp

          Filesize

          8KB

          Download

        • memory/288-22-0x0000000002740000-0x0000000002742000-memory.dmp

          Filesize

          8KB

          Download

        • memory/288-14-0x000000001C550000-0x000000001C551000-memory.dmp

          Filesize

          4KB

          Download

        • memory/288-2-0x000000001AAE0000-0x000000001AAE1000-memory.dmp

          Filesize

          4KB

          Download

        • memory/288-29-0x000000001A9E0000-0x000000001AA02000-memory.dmp

          Filesize

          136KB

          Download

        • memory/288-5-0x000000001BAC0000-0x000000001BAC1000-memory.dmp

          Filesize

          4KB

          Download

        • memory/288-28-0x000000001A9E0000-0x000000001AA02000-memory.dmp

          Filesize

          136KB

          Download

        • memory/288-23-0x000000001A9E0000-0x000000001AA02000-memory.dmp

          Filesize

          136KB

          Download

        • memory/288-3-0x00000000024B0000-0x00000000024B1000-memory.dmp

          Filesize

          4KB

          Download

        • memory/288-1-0x0000000002460000-0x0000000002461000-memory.dmp

          Filesize

          4KB

          Download

        • memory/288-0-0x000007FEF5E20000-0x000007FEF680C000-memory.dmp

          Filesize

          9.9MB

          Download

        • memory/288-4-0x0000000002560000-0x0000000002561000-memory.dmp

          Filesize

          4KB

          Download

        • memory/288-24-0x000000001A9E0000-0x000000001AA02000-memory.dmp

          Filesize

          136KB

          Download

        • memory/288-27-0x000000001A9E0000-0x000000001AA02000-memory.dmp

          Filesize

          136KB

          Download

        • memory/288-26-0x000000001A9E0000-0x000000001AA02000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1212-31-0x0000000002C10000-0x0000000002C32000-memory.dmp

          Filesize

          136KB

          Download