Analysis

  • max time kernel
    142s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/08/2024, 02:29

General

  • Target

    8fd194d74e1189e2b8a4149c44980bfc50af644a36c88e45a433340c519a4635.exe

  • Size

    4.6MB

  • MD5

    a43188891d41684a16531786f10801f7

  • SHA1

    c56f82fe02bdfc86424e5d080edfcec8d1890645

  • SHA256

    8fd194d74e1189e2b8a4149c44980bfc50af644a36c88e45a433340c519a4635

  • SHA512

    b0ba3d5818a410f79208a6e63b8ff9df0d0066c5feadcd04248eecec35fbd83fc6365f328a8d31a9f1ac0581453d6ad48a76521f6b0bbaab272f7461691114f3

  • SSDEEP

    98304:NeHfLvCH15LSKvr1TVKNxRETq0lc2rhhYiGoSj3fT/m9JD0zfdJ:0OSKvr1RSRETq2cOzGoS7K9kD

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 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.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8fd194d74e1189e2b8a4149c44980bfc50af644a36c88e45a433340c519a4635.exe
    "C:\Users\Admin\AppData\Local\Temp\8fd194d74e1189e2b8a4149c44980bfc50af644a36c88e45a433340c519a4635.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:496
    • C:\Users\Admin\AppData\Local\Temp\is-GT0LU.tmp\8fd194d74e1189e2b8a4149c44980bfc50af644a36c88e45a433340c519a4635.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-GT0LU.tmp\8fd194d74e1189e2b8a4149c44980bfc50af644a36c88e45a433340c519a4635.tmp" /SL5="$A0032,4561484,54272,C:\Users\Admin\AppData\Local\Temp\8fd194d74e1189e2b8a4149c44980bfc50af644a36c88e45a433340c519a4635.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3488
      • C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
        "C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1972
      • C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe
        "C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:388

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe

          Filesize

          4.2MB

          MD5

          ab46436bafb3184e30edca2312c85946

          SHA1

          e23a8f58f71e8df14c7ef60d85da249d71e8c066

          SHA256

          f578eed565000e56f8697cca6363e74d4ee72b453d02debff3516825e1f82180

          SHA512

          271cb5f3d998925af04b5809a693a369301482a28aef3ccd7182ce30cd804600d31a52fbd61e8ee5d97823412245520d3ae523debd8cc03e84076a114f0241e6

        • C:\Users\Admin\AppData\Local\Temp\is-CQ54V.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-CQ54V.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • C:\Users\Admin\AppData\Local\Temp\is-GT0LU.tmp\8fd194d74e1189e2b8a4149c44980bfc50af644a36c88e45a433340c519a4635.tmp

          Filesize

          692KB

          MD5

          85fc5b8836d8625fbfa40a092386e645

          SHA1

          a90bb83f5d8d024bb357a44682267a50406071d6

          SHA256

          6dda4c9c34d1898b592ebeccee9f4b2a2bffefd68296da6310435e13fb63d950

          SHA512

          c50e53c2c695c7ba24b4cc2c2f958e1e9ce4eea9b541684ea41c7cae513919bb80171dcaaf1c18a8f37221737e6a1f8ba0881a224abd3dd09407d0c4edb96aae

        • memory/388-93-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-74-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-112-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-109-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-105-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-102-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-65-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-99-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-96-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-68-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-71-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-90-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-77-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-80-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/388-82-0x0000000000B30000-0x0000000000BD2000-memory.dmp

          Filesize

          648KB

        • memory/388-85-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/496-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/496-66-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/496-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/1972-61-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/1972-59-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/1972-57-0x0000000000400000-0x0000000000839000-memory.dmp

          Filesize

          4.2MB

        • memory/3488-12-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/3488-67-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB