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, 14:41

General

  • Target

    7447d5db9ccf93f6a8ecf22ae9fec082.exe

  • Size

    2.2MB

  • MD5

    7447d5db9ccf93f6a8ecf22ae9fec082

  • SHA1

    0c3a044c669e1cce8e6d9ec103a9d3e587fa1acb

  • SHA256

    92d1895c792c289e89a3ef19f00a1061e6928fed385b71358f0c407066939269

  • SHA512

    a8761937c73267aeeefb6093903c74c8e8119e65632e1130cb77617f4cf53c8a4a8f177cd464fe849b455bf430f28599d6433f2350fb5b348afa10f5070d0461

  • SSDEEP

    49152:32DbrhTeTjpdvbXKGJ1X2nIIT6yXaHs4NgJH:mDbrMjpdjJTX2n+VM4NgJH

Malware Config

Extracted

Family

socks5systemz

C2

http://bfmuaur.com/search/?q=67e28dd86c09f220490efa1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978fe71ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c0eb9c9832

http://bfmuaur.com/search/?q=67e28dd86c09f220490efa1c7c27d78406abdd88be4b12eab517aa5c96bd86e9948048815a8bbc896c58e713bc90c91f36b5281fc235a925ed3e5dd6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee94983bc966941f

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\7447d5db9ccf93f6a8ecf22ae9fec082.exe
    "C:\Users\Admin\AppData\Local\Temp\7447d5db9ccf93f6a8ecf22ae9fec082.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Users\Admin\AppData\Local\Temp\is-NT3P5.tmp\7447d5db9ccf93f6a8ecf22ae9fec082.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-NT3P5.tmp\7447d5db9ccf93f6a8ecf22ae9fec082.tmp" /SL5="$5006A,1943765,54272,C:\Users\Admin\AppData\Local\Temp\7447d5db9ccf93f6a8ecf22ae9fec082.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2800
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2584
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1504

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1.4MB

          MD5

          1e1d33135aee5b96e9428b65f0c08234

          SHA1

          7dce01cb5cd2d62b9bb1f3ccc89c5bb29e0cc409

          SHA256

          c0e131b1f66a2c1562a303c3f367bd959c722fc35620b97c34e4cebbcf2bf740

          SHA512

          0e32edf2ca3e8c8059b103b8601474b117ac1a714bbfb4be72a6523938fc11881edb522964417a886328f2f653e309dd71700fc3d96568452d2bb57f8b351bd2

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

          Filesize

          1.4MB

          MD5

          613a08c9b80a7191d04aee7bcaa8ce5c

          SHA1

          b0b0ddc58e193ef63b927592237705857b7f4559

          SHA256

          bc730af72f3e31187f0259870f0ff2fa888fb00fe7a58d1ad92dd55a6b856829

          SHA512

          012fd46f3c5a4b539d57c4e253c38a93ade59906d51c381e99a368ea5c69720044c1c13e0322dcf5ff5665733bdc42fbf843f0e16135ce69aeb0bc3a606bba20

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

          Filesize

          1.4MB

          MD5

          b6b2a72b1573d42c24fe5487bffe5cc3

          SHA1

          40fc96591c9f6432e45dc42b6c1ffe579b692caf

          SHA256

          62e816ecaa0b48be90017cf1c26c2049545a518bce7ae68b3f8546761d69ec83

          SHA512

          11b674ec0e9cf91b953f125b2348a88a7e1d765820001131bd2165ad1fea2fd4fda96bf2d97f428163f05319f1b79f1b81c58abcd7d4d8538a2549d12bc19f0d

        • C:\Users\Admin\AppData\Local\Temp\is-KM48C.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-NT3P5.tmp\7447d5db9ccf93f6a8ecf22ae9fec082.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

        • memory/1504-78-0x0000000000840000-0x00000000008E2000-memory.dmp

          Filesize

          648KB

        • memory/1504-81-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-99-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-96-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-92-0x0000000000840000-0x00000000008E2000-memory.dmp

          Filesize

          648KB

        • memory/1504-91-0x0000000000840000-0x00000000008E2000-memory.dmp

          Filesize

          648KB

        • memory/1504-90-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-46-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-87-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-84-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-49-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-77-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-53-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-54-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-57-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-60-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-63-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-65-0x0000000000840000-0x00000000008E2000-memory.dmp

          Filesize

          648KB

        • memory/1504-68-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/1504-69-0x0000000000840000-0x00000000008E2000-memory.dmp

          Filesize

          648KB

        • memory/1504-74-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/2136-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2136-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2136-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2584-38-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/2584-43-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/2584-42-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/2584-39-0x0000000000400000-0x0000000000639000-memory.dmp

          Filesize

          2.2MB

        • memory/2800-50-0x00000000006A0000-0x00000000006A1000-memory.dmp

          Filesize

          4KB

        • memory/2800-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2800-7-0x00000000006A0000-0x00000000006A1000-memory.dmp

          Filesize

          4KB