Analysis

  • max time kernel
    150s
  • max time network
    155s
  • 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, 15:24

General

  • Target

    25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe

  • Size

    2.2MB

  • MD5

    a43170914d691e584583b0e1023f7d29

  • SHA1

    2a814e366e3d6eb503f0eb398496f7e01470d6d2

  • SHA256

    25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3

  • SHA512

    de188e27905264204e5371fc92b512b4053fe7dc6b05e5659ca93d47a5f986ece802352e14f41488dc2bc01b95876619186a90b4f7009509c1f0d4fa76ecded9

  • SSDEEP

    49152:3260I7BCcfemAVm2VrO5jTzyXyOBuY7hIqrmmA/VzmgH:m6lCcfDAxOlTeXRR7hIqrUV1H

Malware Config

Extracted

Family

socks5systemz

C2

http://aiuqhbi.ru/search/?q=67e28dd83e0ff228160df91f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c0e890983d

http://aiuqhbi.ru/search/?q=67e28dd83e0ff228160df91f7c27d78406abdd88be4b12eab517aa5c96bd86e994814d825a8bbc896c58e713bc90c91936b5281fc235a925ed3e56d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94983bca6a9410

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\25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe
    "C:\Users\Admin\AppData\Local\Temp\25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2740
    • C:\Users\Admin\AppData\Local\Temp\is-VQ6PG.tmp\25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-VQ6PG.tmp\25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp" /SL5="$50062,1970008,54272,C:\Users\Admin\AppData\Local\Temp\25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4972
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:772
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2204

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

          ca07d355c80b303ac9edbf3d9b5492f3

          SHA1

          f09e8e52c3bb53e20f1623321ef2e0da693ebe85

          SHA256

          d144face050d52cf3beba96a24ff6bc79f01a621ee19801dbea49079fee42da8

          SHA512

          8961bc69e102623303d9cd943b9f2df32d8597958a0e3e51a41a84421de1c8037fd9a5e32f86a429f4ec551fcdd9a9b8d1b034a2644d3031abf8b1b5c9e5efdc

        • C:\Users\Admin\AppData\Local\Temp\is-A1NC3.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-VQ6PG.tmp\25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

        • memory/772-41-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/772-42-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/772-38-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/772-37-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-56-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-67-0x0000000000950000-0x00000000009F2000-memory.dmp

          Filesize

          648KB

        • memory/2204-45-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-98-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-95-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-48-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-91-0x0000000000950000-0x00000000009F2000-memory.dmp

          Filesize

          648KB

        • memory/2204-52-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-53-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-90-0x0000000000950000-0x00000000009F2000-memory.dmp

          Filesize

          648KB

        • memory/2204-59-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-62-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-65-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-89-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-66-0x0000000000950000-0x00000000009F2000-memory.dmp

          Filesize

          648KB

        • memory/2204-73-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-76-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-77-0x0000000000950000-0x00000000009F2000-memory.dmp

          Filesize

          648KB

        • memory/2204-80-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-83-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2204-86-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2740-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2740-46-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4972-6-0x0000000002440000-0x0000000002441000-memory.dmp

          Filesize

          4KB

        • memory/4972-49-0x0000000002440000-0x0000000002441000-memory.dmp

          Filesize

          4KB

        • memory/4972-47-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB