Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    11/08/2024, 05:39

General

  • Target

    2b5c856ede00b84fc54beea3e8feb72c42aa918cc4022c9cc1af61ade6fb863f.exe

  • Size

    3.6MB

  • MD5

    29268b07c017acf3a65b252eb470e22a

  • SHA1

    b1b063e36b509e0299b190c85b8cd3158127e373

  • SHA256

    2b5c856ede00b84fc54beea3e8feb72c42aa918cc4022c9cc1af61ade6fb863f

  • SHA512

    08d22ba94d5d0aca4aac8280d7786ea9ce91b46d880cdd6245760b05871853d24b29aeb8fb6c3084826824d129840cba4968297039a58d1405d6899cde5033e4

  • SSDEEP

    98304:N/S9PQCoNfID+27zeSqFasedzcj3LR+vQUdu7:A9YC4fIh7z2Eqj31+vQUM

Malware Config

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.

  • 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\2b5c856ede00b84fc54beea3e8feb72c42aa918cc4022c9cc1af61ade6fb863f.exe
    "C:\Users\Admin\AppData\Local\Temp\2b5c856ede00b84fc54beea3e8feb72c42aa918cc4022c9cc1af61ade6fb863f.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4636
    • C:\Users\Admin\AppData\Local\Temp\is-KEDJR.tmp\2b5c856ede00b84fc54beea3e8feb72c42aa918cc4022c9cc1af61ade6fb863f.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-KEDJR.tmp\2b5c856ede00b84fc54beea3e8feb72c42aa918cc4022c9cc1af61ade6fb863f.tmp" /SL5="$602AA,3539010,54272,C:\Users\Admin\AppData\Local\Temp\2b5c856ede00b84fc54beea3e8feb72c42aa918cc4022c9cc1af61ade6fb863f.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:4688
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:724
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1028

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-159V2.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-KEDJR.tmp\2b5c856ede00b84fc54beea3e8feb72c42aa918cc4022c9cc1af61ade6fb863f.tmp

          Filesize

          692KB

          MD5

          3e58a9d5830b25c2662c530eb10f9fd5

          SHA1

          de246ec71a420cb6097dad238df4194c6ea193cb

          SHA256

          da4b8d3ae61ebcfee90d1bf6990aefbc7e72a5648b823c88c3b2d6d7b5e5ecfb

          SHA512

          8cd131d67edd7058ae9d5b6686cfc986ecfb6b2c240f4b5d4241373ae553af4da35ea28a383cbbd84608c522743689afe4d4856be2a07edca002e7f2dd13281f

        • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

          Filesize

          3.9MB

          MD5

          22669f4b922f0a71d996f4aa6a6475e3

          SHA1

          951b6d2d16a45d5f8103bcabd0f0546e02e1957c

          SHA256

          d2da6eb3553c5f8085e497254ae44f6bf340a2d78916a4e92049cde965f93a96

          SHA512

          1625b2a5de4b2319c22003bfd6fed8d7925a35f7ac9eb9a7ab3251e7150e24dd82841ccdcfbe77ca3e952e423340e113c915ef10e1bc98791347fded2834d828

        • memory/724-53-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/724-57-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/724-55-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/724-52-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-66-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-78-0x0000000000AC0000-0x0000000000B62000-memory.dmp

          Filesize

          648KB

        • memory/1028-110-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-60-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-107-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-103-0x0000000000AC0000-0x0000000000B62000-memory.dmp

          Filesize

          648KB

        • memory/1028-63-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-102-0x0000000000AC0000-0x0000000000B62000-memory.dmp

          Filesize

          648KB

        • memory/1028-69-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-72-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-75-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-101-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-80-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-86-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-89-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-92-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-95-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1028-98-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/4636-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4636-61-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4636-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/4688-10-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4688-62-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB