Analysis

  • max time kernel
    141s
  • max time network
    139s
  • 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, 12:03

General

  • Target

    487ec38ec133319eb1e2de220caa491c680fa95156e452cdde2a3e0fcfe1e5f8.exe

  • Size

    3.6MB

  • MD5

    e11fc198e0e32d68febe6ae60aff46b8

  • SHA1

    672a9e08382957ea4e9a737e55c92644c8a27d5a

  • SHA256

    487ec38ec133319eb1e2de220caa491c680fa95156e452cdde2a3e0fcfe1e5f8

  • SHA512

    dfd0245de4a74bc2725aaac1e00f9c93b5c98e18f89e7cd831f843699564f3761ec34255bbd6ea9c026471da470f30669cef4256dd273b50bcf406470d542e95

  • SSDEEP

    49152:1vsvlKoSLhh+iz1CP2qQUIl766FEc2Jakpa5LlBUVi4A7BupKpicmFZYrBZHlHcK:N6KoSLhcjnJ3UwitlpicGwBxlH7hmIdh

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 2 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\487ec38ec133319eb1e2de220caa491c680fa95156e452cdde2a3e0fcfe1e5f8.exe
    "C:\Users\Admin\AppData\Local\Temp\487ec38ec133319eb1e2de220caa491c680fa95156e452cdde2a3e0fcfe1e5f8.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5308
    • C:\Users\Admin\AppData\Local\Temp\is-AJMKG.tmp\487ec38ec133319eb1e2de220caa491c680fa95156e452cdde2a3e0fcfe1e5f8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-AJMKG.tmp\487ec38ec133319eb1e2de220caa491c680fa95156e452cdde2a3e0fcfe1e5f8.tmp" /SL5="$50308,3532954,54272,C:\Users\Admin\AppData\Local\Temp\487ec38ec133319eb1e2de220caa491c680fa95156e452cdde2a3e0fcfe1e5f8.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:3580
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1644
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4640

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-AJMKG.tmp\487ec38ec133319eb1e2de220caa491c680fa95156e452cdde2a3e0fcfe1e5f8.tmp

          Filesize

          692KB

          MD5

          4a034cc8809b92775041cc5a46c52ab0

          SHA1

          3f2c748bf00a2aa6f3a86c6dfd8a3d667007a54d

          SHA256

          4dfae16c80e15d6e45b60b5b847e1a641af184e3e06727fc3406355de9227e60

          SHA512

          e1d4c9bff206800681a17b4487978a290d365a6593678741b6924394217bc352f1132add01e8e90b9b1b78f1f3bd606c2ff51955c8673503c5e28fb04afc71f6

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32.exe

          Filesize

          3.3MB

          MD5

          fa8094d1802c6c77a9c932ff8a718fa7

          SHA1

          58f1b103c7059245629bf619ebc5458b27c938ae

          SHA256

          5a8809458cefeffe82d1c1d76d4bd45a8d4f4e6b83f7882b0e44dc40246c5963

          SHA512

          2dd2734731703812f67ed3e0b9f7f230bd48abe9c04dac31c2354dbb450ab8f9cc5016f66e31a0bb198ac8fe3529e99abc5c2a7156a1f09238aa1fd476d164ff

        • memory/1644-56-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/1644-52-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/1644-53-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/1644-57-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/3580-62-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/3580-10-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4640-66-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-92-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-108-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-104-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-63-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-101-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-69-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-72-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-75-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-78-0x0000000002580000-0x0000000002622000-memory.dmp

          Filesize

          648KB

        • memory/4640-80-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-86-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-89-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-60-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-95-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4640-98-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/5308-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/5308-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/5308-61-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB