Analysis

  • max time kernel
    142s
  • max time network
    145s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240214-en
  • resource tags

    arch:x64arch:x86image:win11-20240214-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/03/2024, 11:21

General

  • Target

    d53e734f9a4bad2b0d36b7484cb445bd377192a77ddb0d753d5aa1d14e9db078.exe

  • Size

    2.0MB

  • MD5

    d85357190e6be1331036f8cf9225d5c2

  • SHA1

    f5c994accc9fc16df9cd4f3e9e13fdea952c17be

  • SHA256

    d53e734f9a4bad2b0d36b7484cb445bd377192a77ddb0d753d5aa1d14e9db078

  • SHA512

    82dbbd85980edda224365afca6cd75a5f18c4d967a20aec7b2d180f559a90e3772a8c125cb59f03f7465bfee60b42cb93ed037a202f0e7c1bc7c68385430aa0c

  • SSDEEP

    49152:32VR72rAMT8ztu+OmTPjrF13w6GCDiIXSMr09sYe7D:mVR72cMT8zt8sF13wDCDiarQbc

Malware Config

Extracted

Family

socks5systemz

C2

http://bmqusde.com/search/?q=67e28dd83a58f22a160bab1e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a071ea771795af8e05c64bdb22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe10c9ed9c993a

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\d53e734f9a4bad2b0d36b7484cb445bd377192a77ddb0d753d5aa1d14e9db078.exe
    "C:\Users\Admin\AppData\Local\Temp\d53e734f9a4bad2b0d36b7484cb445bd377192a77ddb0d753d5aa1d14e9db078.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5056
    • C:\Users\Admin\AppData\Local\Temp\is-D9GOJ.tmp\d53e734f9a4bad2b0d36b7484cb445bd377192a77ddb0d753d5aa1d14e9db078.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-D9GOJ.tmp\d53e734f9a4bad2b0d36b7484cb445bd377192a77ddb0d753d5aa1d14e9db078.tmp" /SL5="$60228,1779906,54272,C:\Users\Admin\AppData\Local\Temp\d53e734f9a4bad2b0d36b7484cb445bd377192a77ddb0d753d5aa1d14e9db078.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4788
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3376
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3468

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

          7d196988eb734b40f3cdeb7fcfca2ac7

          SHA1

          936ec9251680709686e08afee2b21947fba3d078

          SHA256

          d1c4a6fdab2ee9d3e29cff002c76f83ece20f08806a11d44432313ae43d061f0

          SHA512

          c91705865a852d3e3a0a4dec16d075705b78c9e5547b9e169896400c6080d4c28b2c58183ac837ab1f858b06ecd5f68d5495a6534dd145ef3c0f15c381d1e91e

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

          Filesize

          1.4MB

          MD5

          8a5f63d74c82c4ca2ec7b9ef000e2576

          SHA1

          b3f7d0527a47b32f92e4a97adc2dcfbbfded0cd1

          SHA256

          5472d784b8c21e807a41a90c428db41197c1492e86dccbc78d035f56e0ccb721

          SHA512

          75aa01b7f53dd0866f43f7d1e2bd11931329bdcdeb1d1d069eb4915830f566a2dcafda41c311a577a037ae840cbb4af488147883fd0fa6c791412cc68c59bc95

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

          Filesize

          369KB

          MD5

          3a522aa043c6039680db4d9025344d33

          SHA1

          9fd784581971d4216b71f25b28fa25a72725a215

          SHA256

          c07bc695f929ff4ee18501598201a98f570a2b00b7d1796f3999397d580c07b0

          SHA512

          5b919f7142532b754ad0779ab8af0af0e08b80b9dd78179d39d0cafda86e0b2432f04c350db2a2982adcf59b7fc63447f4452822063f365414006ceab9ff0c06

        • C:\Users\Admin\AppData\Local\Temp\is-AQ500.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-D9GOJ.tmp\d53e734f9a4bad2b0d36b7484cb445bd377192a77ddb0d753d5aa1d14e9db078.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

        • memory/3376-43-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3376-38-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3376-39-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3376-40-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-50-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-79-0x0000000000940000-0x00000000009E2000-memory.dmp

          Filesize

          648KB

        • memory/3468-98-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-45-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-47-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-95-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-91-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-88-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-85-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-54-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-55-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-58-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-61-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-64-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-65-0x0000000000940000-0x00000000009E2000-memory.dmp

          Filesize

          648KB

        • memory/3468-69-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-70-0x0000000000940000-0x00000000009E2000-memory.dmp

          Filesize

          648KB

        • memory/3468-75-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-78-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/3468-82-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/4788-7-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/4788-51-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/4788-49-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/5056-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/5056-48-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/5056-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB