Overview

overview

10

Static

static

5b0aa6ccdd...wn.ps1

windows7_x64

10

5b0aa6ccdd...wn.ps1

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    70s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    11-08-2020 07:15

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General

  • Target

    5b0aa6ccddf29703fe8a7799ca1b6dc56c8c3868538022861c932888bbe36fb6.unknown.ps1

  • Size

    908KB

  • MD5

    787b9055a2057a0c7098203588af40de

  • SHA1

    10f20ecf4e4cd49e82dccccf95fc6b31d6adc69b

  • SHA256

    5b0aa6ccddf29703fe8a7799ca1b6dc56c8c3868538022861c932888bbe36fb6

  • SHA512

    f60abc8c27d309de8595d1c0fe2564484bf242ed9994cb7816e831abaca850d936416f48871a0bc4bbaadfc987b9d330d50c194d2ca9472ab5a2e41807a293c7

Score
10/10
ransomwarepersistencespywareevasiontrojanmailto_hamlampampom

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\User Account Pictures\67EA84-Readme.txt

Family

mailto_hamlampampom

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .67ea84 -- 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_67ea84: 80VhOtjfLf7B5jtmErQaItDZ7ElENsxE1+J/kbkEXz9UMfijYd YdX1gan4113XDwV+hKYmX4brllp3fHFpBa+Fy36MqQYxxOaDQG sEbc+TwLjroIN9A59AaHRRXcy2aUo+/uz9+RabluXQCPN87wsk kA4Vd8c8ZnH1Yd6KEhjuqc0XgHYbs83LXQ+mRLHU9v5WJUtBIQ +hnjvtUuRQU9YvE+pzJ4K2ssFvp56PxwOVR8Ave8IzkVF155M8 bTy+jJ7MYjYLmS9x7VrF2Z4k2ft8XWcA7XrGGn9w==}

Extracted

Path

C:\Program Files\67EA84-Readme.txt

Family

mailto_hamlampampom

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .67ea84 -- 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_67ea84: 80VhOtjfLf7B5jtmErQaItDZ7ElENsxE1+J/kbkEXz9UMfijYd YdX1gan4113XDwV+hKYmX4brllp3fHFpBa+Fy36MqQYxxOaDQG sEbc+TwLjroIN9A59AaHRRXcy2aUo+/uz9+RabluXQCPN87wsk kA4Vd8c8ZnH1Yd6KEhjuqc0XgHYbs83LXQ+mRLHU9v5WJUtBIQ +hnjvtUuRQU9YvE+pzJ4K2ssFvp56PxwOVR8Ave8IzkVF155M8 bTy+jJ7MYjYLmS9x7VrF2Z4k2ft8XWcA7XrGGn9w==}Hi! Your files are encrypted. All encrypted files for this computer has extension: .67ea84 -- 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_67ea84: 80VhOtjfLf7B5jtmErQaItDZ7ElENsxE1+J/kbkEXz9UMfijYd YdX1gan4113XDwV+hKYmX4brllp3fHFpBa+Fy36MqQYxxOaDQG sEbc+TwLjroIN9A59AaHRRXcy2aUo+/uz9+RabluXQCPN87wsk kA4Vd8c8ZnH1Yd6KEhjuqc0XgHYbs83LXQ+mRLHU9v5WJUtBIQ +hnjvtUuRQU9YvE+pzJ4K2ssFvp56PxwOVR8Ave8IzkVF155M8 bTy+jJ7MYjYLmS9x7VrF2Z4k2ft8XWcA7XrGGn9w==}

Signatures

  • MailTo (Hamlampampom Variant)

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

    ransomwaremailto_hamlampampom
  • Modifies extensions of user files 6 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
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Drops file in Program Files directory 7480 IoCs
  • Suspicious behavior: EnumeratesProcesses 22997 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 5 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
    • Checks whether UAC is enabled
    • 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:1320
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\5b0aa6ccddf29703fe8a7799ca1b6dc56c8c3868538022861c932888bbe36fb6.unknown.ps1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1096
      • 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\ns53ppc2\ns53ppc2.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:240
        • 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\RES3F12.tmp" "c:\Users\Admin\AppData\Local\Temp\ns53ppc2\CSC8AD5000692E407C9ECF686CE778BF17.TMP"
          4⤵
            PID:676
        • 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\zkrycr41\zkrycr41.cmdline"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1056
          • 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\RES3FEC.tmp" "c:\Users\Admin\AppData\Local\Temp\zkrycr41\CSC36B690FA6A7F46B394C2D6E6D46C6C82.TMP"
            4⤵
              PID:1520
        • C:\Windows\system32\notepad.exe
          C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\67EA84-Readme.txt"
          2⤵
            PID:5224
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Modifies service
          • Suspicious use of AdjustPrivilegeToken
          PID:1880

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\RES3F12.tmp
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        • C:\Users\Admin\AppData\Local\Temp\RES3FEC.tmp
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        • C:\Users\Admin\AppData\Local\Temp\ns53ppc2\ns53ppc2.dll
          Download Submit

        • C:\Users\Admin\AppData\Local\Temp\zkrycr41\zkrycr41.dll
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        • C:\Users\Admin\Desktop\67EA84-Readme.txt
          Download Submit

        • \??\c:\Users\Admin\AppData\Local\Temp\ns53ppc2\CSC8AD5000692E407C9ECF686CE778BF17.TMP
          Download Submit

        • \??\c:\Users\Admin\AppData\Local\Temp\ns53ppc2\ns53ppc2.0.cs
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        • \??\c:\Users\Admin\AppData\Local\Temp\ns53ppc2\ns53ppc2.cmdline
          Download Submit

        • \??\c:\Users\Admin\AppData\Local\Temp\zkrycr41\CSC36B690FA6A7F46B394C2D6E6D46C6C82.TMP
          Download Submit

        • \??\c:\Users\Admin\AppData\Local\Temp\zkrycr41\zkrycr41.0.cs
          Download Submit

        • \??\c:\Users\Admin\AppData\Local\Temp\zkrycr41\zkrycr41.cmdline
          Download Submit

        • memory/240-6-0x0000000000000000-mapping.dmp

          Download

        • memory/676-9-0x0000000000000000-mapping.dmp

          Download

        • memory/1056-14-0x0000000000000000-mapping.dmp

          Download

        • memory/1096-2-0x000000001A9D0000-0x000000001A9D1000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1096-23-0x000000001B4C0000-0x000000001B4E2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1096-0-0x000007FEF5620000-0x000007FEF600C000-memory.dmp

          Filesize

          9.9MB

          Download

        • memory/1096-1-0x0000000002490000-0x0000000002491000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1096-4-0x0000000002200000-0x0000000002201000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1096-3-0x00000000026E0000-0x00000000026E1000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1096-5-0x000000001C380000-0x000000001C381000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1096-21-0x0000000002730000-0x0000000002732000-memory.dmp

          Filesize

          8KB

          Download

        • memory/1096-22-0x000000001C580000-0x000000001C581000-memory.dmp

          Filesize

          4KB

          Download

        • memory/1096-13-0x0000000002400000-0x0000000002402000-memory.dmp

          Filesize

          8KB

          Download

        • memory/1096-24-0x000000001B4C0000-0x000000001B4E2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1096-25-0x000000001B4C0000-0x000000001B4E2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1096-26-0x000000001B4C0000-0x000000001B4E2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1096-27-0x000000001B4C0000-0x000000001B4E2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1096-28-0x000000001B4C0000-0x000000001B4E2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1096-29-0x000000001B4C0000-0x000000001B4E2000-memory.dmp

          Filesize

          136KB

          Download

        • memory/1520-17-0x0000000000000000-mapping.dmp

          Download

        • memory/5224-31-0x0000000000000000-mapping.dmp

          Download