Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/03/2024, 11:36

General

  • Target

    f58cd7703329922a2ed72ad44b8edf5e.exe

  • Size

    2.0MB

  • MD5

    f58cd7703329922a2ed72ad44b8edf5e

  • SHA1

    144f9fb2cfaa6b91dd9562a12e692d2a681e5786

  • SHA256

    dd2a7b01159e95ee8741fbbd0b0ee206cd8424bcef4f4e41b3c2a4c41e9a3585

  • SHA512

    4ccbf86372c1afa4ccd973dc35729fd78d195cca3b603a71688df6e104febf54f7001a8bd377cb442405ec7a6945a92a506c199adbfa3fb16625fc01b2a08155

  • SSDEEP

    49152:32gnMidDCERMfKj78jlLLm+qAP2X5CNyihe7D:mgnMidDCEGHlfP2X56hc

Malware Config

Extracted

Family

socks5systemz

C2

http://dtwwyel.info/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c647db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe10c9ec9d9e38

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\f58cd7703329922a2ed72ad44b8edf5e.exe
    "C:\Users\Admin\AppData\Local\Temp\f58cd7703329922a2ed72ad44b8edf5e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Users\Admin\AppData\Local\Temp\is-1R0P8.tmp\f58cd7703329922a2ed72ad44b8edf5e.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-1R0P8.tmp\f58cd7703329922a2ed72ad44b8edf5e.tmp" /SL5="$80214,1743789,54272,C:\Users\Admin\AppData\Local\Temp\f58cd7703329922a2ed72ad44b8edf5e.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2516
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4516
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:632
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4292 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2964

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            2.0MB

            MD5

            bd244b8c4f71095e22e91c28cf8ddf5f

            SHA1

            408f4715a5ee3d959af04467f2e079b6cd8715e7

            SHA256

            172a6545ebf5697a6ca7ca113a262c4b3376ea634db1658db03fd5d11c478252

            SHA512

            03af046fee90e21eabd2b120b4072e5be863d39b3b674c0f5c7e7e9366f39ab70946eb36de62d1dd6f4256ef97f7af27c7c4cc991d52c51bec54dd4ef96eec08

          • C:\Users\Admin\AppData\Local\Temp\is-1R0P8.tmp\f58cd7703329922a2ed72ad44b8edf5e.tmp

            Filesize

            677KB

            MD5

            92f7775908bb12183914bb0753782913

            SHA1

            8d1091da36832942d48f2fe9a1a216fdd556b9c4

            SHA256

            a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

            SHA512

            7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

          • C:\Users\Admin\AppData\Local\Temp\is-8A03V.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • memory/632-80-0x0000000000970000-0x0000000000A12000-memory.dmp

            Filesize

            648KB

          • memory/632-64-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-95-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-91-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-88-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-85-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-82-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-45-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-47-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-78-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-50-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-75-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-54-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-55-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-58-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-61-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/632-69-0x0000000000970000-0x0000000000A12000-memory.dmp

            Filesize

            648KB

          • memory/632-67-0x0000000000970000-0x0000000000A12000-memory.dmp

            Filesize

            648KB

          • memory/632-68-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/1108-37-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/1108-0-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/2516-52-0x0000000002340000-0x0000000002341000-memory.dmp

            Filesize

            4KB

          • memory/2516-48-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/2516-6-0x0000000002340000-0x0000000002341000-memory.dmp

            Filesize

            4KB

          • memory/4516-43-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/4516-41-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/4516-39-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB

          • memory/4516-38-0x0000000000400000-0x000000000060E000-memory.dmp

            Filesize

            2.1MB