Analysis

  • max time kernel
    148s
  • max time network
    157s
  • 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, 15:58

General

  • Target

    2c982acdcf73dc44afb250b14e22636e679022f40490a8c9943fe6ef19e6f644.exe

  • Size

    2.0MB

  • MD5

    d09813304a4e13b05274c716787f851b

  • SHA1

    41058a366822e62777d7cfc62a21530f3ee8df3e

  • SHA256

    2c982acdcf73dc44afb250b14e22636e679022f40490a8c9943fe6ef19e6f644

  • SHA512

    ea5bb6c2467706d2b5a8f1a2e194c78cb8b6653af51c9d3e3b7f658865b5766641da772bcf783775036cf2d1313a47f50c85d533b69e8308efcda76d9e2c9e71

  • SSDEEP

    49152:329v4KVdxYz+LdLcaBbPE4UfakLpfJaYVZnPjQYH:mmKFnLdLZP1UfdLdJagBPjxH

Malware Config

Extracted

Family

socks5systemz

C2

http://bxoixbb.com/search/?q=67e28dd83d54f12b140cff197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c0e6909233

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\2c982acdcf73dc44afb250b14e22636e679022f40490a8c9943fe6ef19e6f644.exe
    "C:\Users\Admin\AppData\Local\Temp\2c982acdcf73dc44afb250b14e22636e679022f40490a8c9943fe6ef19e6f644.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4668
    • C:\Users\Admin\AppData\Local\Temp\is-FCSB1.tmp\2c982acdcf73dc44afb250b14e22636e679022f40490a8c9943fe6ef19e6f644.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-FCSB1.tmp\2c982acdcf73dc44afb250b14e22636e679022f40490a8c9943fe6ef19e6f644.tmp" /SL5="$50206,1756641,54272,C:\Users\Admin\AppData\Local\Temp\2c982acdcf73dc44afb250b14e22636e679022f40490a8c9943fe6ef19e6f644.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4596
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4908

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.1MB

          MD5

          c90a6199b4a7aaab7ab2ee513f4828b5

          SHA1

          90d22da7c8ee5e606f7ee1e917e566f17fd1ffd0

          SHA256

          49fb7327450e2cab17ade9521f6e4e9a70cdc7793b04eddc75bbb0016392abca

          SHA512

          2670f1e9c8456ef378b0400dded1a66d3e6c3cbc313d039f54ce98504083526975150126290d4e63d31831f4b1d2c11bd57bac742358003f86f2895da6bae0b6

        • C:\Users\Admin\AppData\Local\Temp\is-AE4PQ.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-FCSB1.tmp\2c982acdcf73dc44afb250b14e22636e679022f40490a8c9943fe6ef19e6f644.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

        • memory/1100-49-0x0000000002300000-0x0000000002301000-memory.dmp

          Filesize

          4KB

        • memory/1100-6-0x0000000002300000-0x0000000002301000-memory.dmp

          Filesize

          4KB

        • memory/1100-47-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/4596-38-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4596-37-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4596-41-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4596-42-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4668-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4668-46-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4908-52-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-66-0x0000000000920000-0x00000000009C2000-memory.dmp

          Filesize

          648KB

        • memory/4908-45-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-56-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-59-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-62-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-65-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-67-0x0000000000920000-0x00000000009C2000-memory.dmp

          Filesize

          648KB

        • memory/4908-48-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-73-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-76-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-77-0x0000000000920000-0x00000000009C2000-memory.dmp

          Filesize

          648KB

        • memory/4908-80-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-83-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-86-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-89-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-93-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4908-96-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB