Analysis

  • max time kernel
    141s
  • max time network
    127s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/03/2024, 14:31

General

  • Target

    2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe

  • Size

    2.0MB

  • MD5

    4480d63a90a0688c746403e1619450e9

  • SHA1

    ea08f3f1433884829b85581e1af96e513ad732c1

  • SHA256

    2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518

  • SHA512

    5bcfe8490601f9706179d629007a35ff200f4f120a2beede02a09b85a61a80e87efde3dc5c88eb0837b9098cf7ffbf003d33500d315cc6e98ab2604c6c2fb89e

  • SSDEEP

    24576:320xgvrNSewSFhsA9UaMa2qvnB2ZV4Y5tPufQZ0zXHjHI/8oO74rlPVAxK/z9x+c:32h/s22qPDYmfNbHbQ/JPyxKfIz2ZhH

Malware Config

Extracted

Family

socks5systemz

C2

http://ernrcxy.ua/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978a371ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c0eb969c3f

http://ernrcxy.ua/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12eab517aa5c96bd86ef95824a815a8bbc896c58e713bc90c91b36b5281fc235a925ed3e00d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94983bc96c9012

Signatures

  • Detect Socks5Systemz Payload 5 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe
    "C:\Users\Admin\AppData\Local\Temp\2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Users\Admin\AppData\Local\Temp\is-PDVJ5.tmp\2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-PDVJ5.tmp\2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp" /SL5="$6016C,1788021,54272,C:\Users\Admin\AppData\Local\Temp\2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4228
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3000
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3932

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

          Filesize

          960KB

          MD5

          36e7b7b9398074cb100a74d1fbf35185

          SHA1

          afc9cb2b5520b6562a97a275f6ba203088318dee

          SHA256

          fc708b696c6ab339015ca754a708516f1310bbb2e7c0e5451c1cdcae35a9bc3e

          SHA512

          9fe22e91d98e0195fbdf2a6bd175f34a07f7769c37df02c7a781138ccb55ff6bb56dd4935e37eab4b249d40a37fc16e25dea92389c34371665fdc3eb1c04eab4

        • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

          Filesize

          2.1MB

          MD5

          85116302d8af3431e866b1a5d0cf5d5e

          SHA1

          09e15b963c590fb5054f1e1c84ecdc0ce2526a6d

          SHA256

          f20413a98b4094027921ed785672cebc78251a9977c572d0dd77804460734fe1

          SHA512

          957cb4a3b2017542ea4dc6e3903255f3de14a282c8a34ea244602fa91584a7965e594258ac86b0e1f323dcdd1b3f3fb33d65fdbe43d4747f1282d59e1cc6cfbc

        • C:\Users\Admin\AppData\Local\Temp\is-6SFMH.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-PDVJ5.tmp\2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

        • memory/2764-48-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2764-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2764-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3000-39-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3000-38-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3000-42-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3000-43-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-55-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-88-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-46-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-100-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-50-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-97-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-52-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-93-0x0000000000820000-0x00000000008C2000-memory.dmp

          Filesize

          648KB

        • memory/3932-58-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-61-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-64-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-66-0x0000000000820000-0x00000000008C2000-memory.dmp

          Filesize

          648KB

        • memory/3932-69-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-70-0x0000000000820000-0x00000000008C2000-memory.dmp

          Filesize

          648KB

        • memory/3932-75-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-78-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-79-0x0000000000820000-0x00000000008C2000-memory.dmp

          Filesize

          648KB

        • memory/3932-82-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-85-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-47-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-91-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3932-92-0x0000000000820000-0x00000000008C2000-memory.dmp

          Filesize

          648KB

        • memory/4228-7-0x00000000006D0000-0x00000000006D1000-memory.dmp

          Filesize

          4KB

        • memory/4228-51-0x00000000006D0000-0x00000000006D1000-memory.dmp

          Filesize

          4KB

        • memory/4228-49-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB