Analysis

  • max time kernel
    150s
  • max time network
    146s
  • 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, 12:36

General

  • Target

    603489e0ce3e4c942d3cb6badafb76f7.exe

  • Size

    2.0MB

  • MD5

    603489e0ce3e4c942d3cb6badafb76f7

  • SHA1

    c1eb47d815760f03c49d892f7ffcd048ee7b24ac

  • SHA256

    1ba1766362edbe760510aba2daa552624058f0dbd7f4e426c8801bd876b915d6

  • SHA512

    dbeb9f836b0b39b48e7cdc1551477bac601907f7c3cd61736dd90b2ba68b5345078bc6223c01998aeccc8087bd2fd9c259e87d353d9391766707e3e4e3c81288

  • SSDEEP

    49152:32pF1TdGP/ATkjneFyIzQFzMGCjTHTjowMRmPCb8OKxRe7D:mpXT2YUpIzAMowGhbrKxRc

Malware Config

Extracted

Family

socks5systemz

C2

http://bfqwijl.com/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe10c9e8919e39

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\603489e0ce3e4c942d3cb6badafb76f7.exe
    "C:\Users\Admin\AppData\Local\Temp\603489e0ce3e4c942d3cb6badafb76f7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3132
    • C:\Users\Admin\AppData\Local\Temp\is-C38O7.tmp\603489e0ce3e4c942d3cb6badafb76f7.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-C38O7.tmp\603489e0ce3e4c942d3cb6badafb76f7.tmp" /SL5="$801DC,1773528,54272,C:\Users\Admin\AppData\Local\Temp\603489e0ce3e4c942d3cb6badafb76f7.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2400
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4924
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4228
  • 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=3996 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3568

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            1.6MB

            MD5

            78afe351bb4784051f113dddfe94724e

            SHA1

            fa1e56eddc251e912a3be6c78c1114224cad300a

            SHA256

            d04b162788c0e48fb9ff5dca9490b954eb09a3ae9573b12a117fadaf7c107c08

            SHA512

            19dcca46ab2fa1f784117a4b332a7e0920eb88c4912726c05959c63d434898602b60f2fcf4296e6b786080e78f45ee0690aa55a2249334875be97674b85c7c50

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

            Filesize

            2.0MB

            MD5

            ecd25bbe932879f7b1104322f0338e11

            SHA1

            03e574a7f06a85bc0cbbabfb86e1cfb621031056

            SHA256

            31a2a7a5b20873a11d02be605f1d4be60e099ff33d82fcc6b4e2092769d3d811

            SHA512

            e1a5c06abf4507cccdbb83f4b02853b6f9f82f64f04e51b382929b13a2dec475951748498b9a5843a658f0b712ba3d8110fd072b5960168e20a2a1e6eb217232

          • C:\Users\Admin\AppData\Local\Temp\is-C38O7.tmp\603489e0ce3e4c942d3cb6badafb76f7.tmp

            Filesize

            677KB

            MD5

            92f7775908bb12183914bb0753782913

            SHA1

            8d1091da36832942d48f2fe9a1a216fdd556b9c4

            SHA256

            a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

            SHA512

            7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

          • C:\Users\Admin\AppData\Local\Temp\is-O0HJM.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • memory/2400-53-0x00000000005D0000-0x00000000005D1000-memory.dmp

            Filesize

            4KB

          • memory/2400-7-0x00000000005D0000-0x00000000005D1000-memory.dmp

            Filesize

            4KB

          • memory/2400-49-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/3132-48-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/3132-0-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/3132-2-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/4228-58-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-78-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-47-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-98-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-95-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-51-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-91-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-54-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-55-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-89-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-61-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-64-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-68-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-69-0x00000000009D0000-0x0000000000A72000-memory.dmp

            Filesize

            648KB

          • memory/4228-70-0x00000000009D0000-0x0000000000A72000-memory.dmp

            Filesize

            648KB

          • memory/4228-75-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-45-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-81-0x00000000009D0000-0x0000000000A72000-memory.dmp

            Filesize

            648KB

          • memory/4228-82-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4228-86-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4924-38-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4924-39-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4924-40-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB

          • memory/4924-43-0x0000000000400000-0x000000000060B000-memory.dmp

            Filesize

            2.0MB