Overview

overview

10

Static

static

cn.ps1

windows7_x64

10

cn.ps1

windows10_x64

10

Resubmissions

26-09-2020 23:54

200926-88jpjd2t8n 10

26-09-2020 18:30

200926-5s6t9k6kze 10

Analysis

  • max time kernel
    132s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    26-09-2020 18:30

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General

  • Target

    cn.ps1

  • Size

    888KB

  • MD5

    6c5252bee2eff7646cc082c4c64d66c6

  • SHA1

    3e367fc34959616b705f0793b4cfadbe666c94d9

  • SHA256

    1802e2cb97e5c5e502c4cb70dd38539502dbccc8972cc8c2b75d0e571f58cabb

  • SHA512

    96e0705943fb0748a8f834a3f8f6ab476234dc7ed44e56d9e7e562e13a59c94ae38f7271ba25e86cc401c94123f0b3d4f66b69994b293b22d6f6a0cdb3affe4b

Score
10/10
ransomwarespywarepersistencemailto_hamlampampom

Malware Config

Extracted

Path

C:\ProgramData\Package Cache\{ef6b00ec-13e1-4c25-9064-b2f383cb8412}\255134-Readme.txt

Family

mailto_hamlampampom

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .255134 -- 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, your data may have been stolen and if you do not cooperate with us, it will become publicly available on our blog. -- 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_255134: TyJvrAgnzrqhKFwpTxDikNDeY3OlWsstcPaDN2Dl7nw1btxMjG gSrou2g8k3IhYNfWG576kYinU9zXGDeTbyfgZ3a8uiUQR5Pfgd nYw0USW9nu0j/5D6FRcsWfMvW+KKZdM+jAOw5ii2Vbxnx3fFEL GwgHhYhSb69qro82bBXc6l+5yvlGyOpcw0g69BR0BNqsAZsU7X teH45GsCr1L82TcodHSR+MtMQHlRE18dXEt0EZvPlL/TRrCYZY g4+g8K6/kL6h/zIM3ZXv1HGWPzCBOeTPzgXcoRcg==}

Extracted

Path

C:\Program Files\7-Zip\Lang\255134-Readme.txt

Family

mailto_hamlampampom

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .255134 -- 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, your data may have been stolen and if you do not cooperate with us, it will become publicly available on our blog. -- 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_255134: TyJvrAgnzrqhKFwpTxDikNDeY3OlWsstcPaDN2Dl7nw1btxMjG gSrou2g8k3IhYNfWG576kYinU9zXGDeTbyfgZ3a8uiUQR5Pfgd nYw0USW9nu0j/5D6FRcsWfMvW+KKZdM+jAOw5ii2Vbxnx3fFEL GwgHhYhSb69qro82bBXc6l+5yvlGyOpcw0g69BR0BNqsAZsU7X teH45GsCr1L82TcodHSR+MtMQHlRE18dXEt0EZvPlL/TRrCYZY g4+g8K6/kL6h/zIM3ZXv1HGWPzCBOeTPzgXcoRcg==}Hi! Your files are encrypted. All encrypted files for this computer has extension: .255134 -- 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, your data may have been stolen and if you do not cooperate with us, it will become publicly available on our blog. -- 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_255134: TyJvrAgnzrqhKFwpTxDikNDeY3OlWsstcPaDN2Dl7nw1btxMjG gSrou2g8k3IhYNfWG576kYinU9zXGDeTbyfgZ3a8uiUQR5Pfgd nYw0USW9nu0j/5D6FRcsWfMvW+KKZdM+jAOw5ii2Vbxnx3fFEL GwgHhYhSb69qro82bBXc6l+5yvlGyOpcw0g69BR0BNqsAZsU7X teH45GsCr1L82TcodHSR+MtMQHlRE18dXEt0EZvPlL/TRrCYZY g4+g8K6/kL6h/zIM3ZXv1HGWPzCBOeTPzgXcoRcg==}

Signatures

  • MailTo (Hamlampampom Variant)

    Ransomware family discovered in late 2019 with variants named based on contact emails.

    ransomwaremailto_hamlampampom
  • Modifies extensions of user files 1 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 7576 IoCs
  • Suspicious behavior: EnumeratesProcesses 10216 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\cn.ps1
    1⤵
    • Modifies extensions of user files
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1460
    • 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\4viyytoo\4viyytoo.cmdline"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1636
      • 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\RES3582.tmp" "c:\Users\Admin\AppData\Local\Temp\4viyytoo\CSC7EAA809D2F88447A8050A025DAAEDBFC.TMP"
        3⤵
          PID:1992
      • 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\j0ytunks\j0ytunks.cmdline"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1932
        • 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\RES36F8.tmp" "c:\Users\Admin\AppData\Local\Temp\j0ytunks\CSCC1D95B726784EB485213C911EDC18AB.TMP"
          3⤵
            PID:2032
        • C:\Windows\system32\notepad.exe
          C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\255134-Readme.txt"
          2⤵
            PID:7472
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Modifies service
          • Suspicious use of AdjustPrivilegeToken
          PID:3872

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\4viyytoo\4viyytoo.dll
          Download Submit

        • C:\Users\Admin\AppData\Local\Temp\RES3582.tmp
          Download Submit

        • C:\Users\Admin\AppData\Local\Temp\RES36F8.tmp
          Download Submit

        • C:\Users\Admin\AppData\Local\Temp\j0ytunks\j0ytunks.dll
          Download Submit

        • C:\Users\Admin\Desktop\255134-Readme.txt
          Download Submit

        • \??\c:\Users\Admin\AppData\Local\Temp\4viyytoo\4viyytoo.0.cs
          Download Submit

        • \??\c:\Users\Admin\AppData\Local\Temp\4viyytoo\4viyytoo.cmdline
          Download Submit

        • \??\c:\Users\Admin\AppData\Local\Temp\4viyytoo\CSC7EAA809D2F88447A8050A025DAAEDBFC.TMP
          Download Submit

        • \??\c:\Users\Admin\AppData\Local\Temp\j0ytunks\CSCC1D95B726784EB485213C911EDC18AB.TMP
          Download Submit

        • \??\c:\Users\Admin\AppData\Local\Temp\j0ytunks\j0ytunks.0.cs
          Download Submit

        • \??\c:\Users\Admin\AppData\Local\Temp\j0ytunks\j0ytunks.cmdline
          Download Submit

        • memory/1460-2-0x000000001AEC0000-0x000000001AEC1000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1460-27-0x000000001AA90000-0x000000001AAB2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1460-22-0x000000001C5F0000-0x000000001C5F1000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1460-21-0x00000000028A0000-0x00000000028A1000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1460-30-0x000000001AA90000-0x000000001AAB2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1460-0-0x000007FEF58D0000-0x000007FEF62BC000-memory.dmp

          Filesize

          9.9MB

          Download

        • memory/1460-29-0x000000001AA90000-0x000000001AAB2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1460-4-0x0000000002020000-0x0000000002021000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1460-23-0x000000001AA90000-0x000000001AAB2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1460-28-0x000000001AA90000-0x000000001AAB2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1460-1-0x0000000002500000-0x0000000002501000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1460-13-0x0000000002650000-0x0000000002652000-memory.dmp

          Filesize

          8KB

          Download

        • memory/1460-3-0x00000000026E0000-0x00000000026E1000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1460-24-0x000000001AA90000-0x000000001AAB2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1460-25-0x000000001AA90000-0x000000001AAB2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1460-26-0x000000001AA90000-0x000000001AAB2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1460-5-0x000000001C460000-0x000000001C461000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1636-6-0x0000000000000000-mapping.dmp

          Download

        • memory/1932-14-0x0000000000000000-mapping.dmp

          Download

        • memory/1992-9-0x0000000000000000-mapping.dmp

          Download

        • memory/2032-17-0x0000000000000000-mapping.dmp

          Download

        • memory/7472-31-0x0000000000000000-mapping.dmp

          Download