Analysis

  • max time kernel
    141s
  • max time network
    125s
  • 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, 14:22

General

  • Target

    92d1895c792c289e89a3ef19f00a1061e6928fed385b71358f0c407066939269.exe

  • Size

    2.2MB

  • MD5

    7447d5db9ccf93f6a8ecf22ae9fec082

  • SHA1

    0c3a044c669e1cce8e6d9ec103a9d3e587fa1acb

  • SHA256

    92d1895c792c289e89a3ef19f00a1061e6928fed385b71358f0c407066939269

  • SHA512

    a8761937c73267aeeefb6093903c74c8e8119e65632e1130cb77617f4cf53c8a4a8f177cd464fe849b455bf430f28599d6433f2350fb5b348afa10f5070d0461

  • SSDEEP

    49152:32DbrhTeTjpdvbXKGJ1X2nIIT6yXaHs4NgJH:mDbrMjpdjJTX2n+VM4NgJH

Malware Config

Extracted

Family

socks5systemz

C2

http://aissnez.ru/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978a371ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c0ec9d9b3b

Signatures

  • Detect Socks5Systemz Payload 3 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\92d1895c792c289e89a3ef19f00a1061e6928fed385b71358f0c407066939269.exe
    "C:\Users\Admin\AppData\Local\Temp\92d1895c792c289e89a3ef19f00a1061e6928fed385b71358f0c407066939269.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3688
    • C:\Users\Admin\AppData\Local\Temp\is-DO73R.tmp\92d1895c792c289e89a3ef19f00a1061e6928fed385b71358f0c407066939269.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-DO73R.tmp\92d1895c792c289e89a3ef19f00a1061e6928fed385b71358f0c407066939269.tmp" /SL5="$800D6,1943765,54272,C:\Users\Admin\AppData\Local\Temp\92d1895c792c289e89a3ef19f00a1061e6928fed385b71358f0c407066939269.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1392
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2508
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4224

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.2MB

          MD5

          4fb7c9f8330a5f6e5c1fd0b95f4bcebe

          SHA1

          e634bf322484061ef0bc5e32714c3f239b1142d5

          SHA256

          9e88759b12e04e21199bb9c536f5a0f56ca9e291fad87270573e94de1d79eb9d

          SHA512

          9eecf2791448a3020292fe7a90fb0966a21433f03ff9b4bf57ff5ed8f71b6cfdae985978a7547e3fd336ae9fa51f788841f9308bb264fcd0256121fb4b9ee46e

        • C:\Users\Admin\AppData\Local\Temp\is-B8RB8.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-DO73R.tmp\92d1895c792c289e89a3ef19f00a1061e6928fed385b71358f0c407066939269.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

        • memory/1392-50-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/1392-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/1392-7-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/2508-38-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-39-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-42-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-43-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-51-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/3688-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3688-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3688-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4224-54-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-70-0x00000000009A0000-0x0000000000A42000-memory.dmp

          Filesize

          648KB

        • memory/4224-46-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-55-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-58-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-61-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-64-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-65-0x00000000009A0000-0x0000000000A42000-memory.dmp

          Filesize

          648KB

        • memory/4224-69-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-49-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-75-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-78-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-79-0x00000000009A0000-0x0000000000A42000-memory.dmp

          Filesize

          648KB

        • memory/4224-82-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-85-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-88-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-91-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-95-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/4224-98-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB