Analysis

  • max time kernel
    143s
  • max time network
    125s
  • 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, 15:06

General

  • Target

    21724dd23ae0c26710bff2a2e5727fdef8d925cea9721f181073cadd7d0ae2f4.exe

  • Size

    3.9MB

  • MD5

    b7c3c5949b3fca7b3e86894e8d0c5244

  • SHA1

    0570909d1e23f2a3a5614c33eb47734e994d1131

  • SHA256

    21724dd23ae0c26710bff2a2e5727fdef8d925cea9721f181073cadd7d0ae2f4

  • SHA512

    a46368a59b12ca38a5d0b312a363c797cfac9bb8898a24c54eeecbf0de860349f8f6f2cfd998541cc9f98633a589e26a3e86d83dbe74901960eb5130bf1d1f89

  • SSDEEP

    98304:NWvfrJ4iXLMckpzQ/OriCJGcLV1tDFxjxcnO351WgJ27rm6oBdh:wjLMPpziOrpZBpx4qbMSbL

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\21724dd23ae0c26710bff2a2e5727fdef8d925cea9721f181073cadd7d0ae2f4.exe
    "C:\Users\Admin\AppData\Local\Temp\21724dd23ae0c26710bff2a2e5727fdef8d925cea9721f181073cadd7d0ae2f4.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2792
    • C:\Users\Admin\AppData\Local\Temp\is-2DA3O.tmp\21724dd23ae0c26710bff2a2e5727fdef8d925cea9721f181073cadd7d0ae2f4.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-2DA3O.tmp\21724dd23ae0c26710bff2a2e5727fdef8d925cea9721f181073cadd7d0ae2f4.tmp" /SL5="$6029A,3818024,54272,C:\Users\Admin\AppData\Local\Temp\21724dd23ae0c26710bff2a2e5727fdef8d925cea9721f181073cadd7d0ae2f4.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:3924
      • 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:4836
      • 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:5048

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-2DA3O.tmp\21724dd23ae0c26710bff2a2e5727fdef8d925cea9721f181073cadd7d0ae2f4.tmp

          Filesize

          692KB

          MD5

          4a034cc8809b92775041cc5a46c52ab0

          SHA1

          3f2c748bf00a2aa6f3a86c6dfd8a3d667007a54d

          SHA256

          4dfae16c80e15d6e45b60b5b847e1a641af184e3e06727fc3406355de9227e60

          SHA512

          e1d4c9bff206800681a17b4487978a290d365a6593678741b6924394217bc352f1132add01e8e90b9b1b78f1f3bd606c2ff51955c8673503c5e28fb04afc71f6

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

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

          Filesize

          3.1MB

          MD5

          ea12c72d0940f899d9655e6ed4cbf14c

          SHA1

          a434548c05f6ba1d76a08110987b83c7bb371b51

          SHA256

          0600517fbc19bf34ecbd8c5787cc2a7b30174558631d8dccf44e8980d90fc195

          SHA512

          79afb257e71159f662de459de8a46bfba2ee9aa7b19ba3a0b726ffeac612201a3318cb5df5b9d60842fb2f7a0a868caf09754e0d3a5ea7693e62b7e0fd584a54

        • memory/2792-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2792-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/2792-67-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3924-10-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/3924-68-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4836-59-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/4836-61-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/4836-63-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/4836-58-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-69-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-88-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-72-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-75-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-78-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-81-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-84-0x0000000002540000-0x00000000025E2000-memory.dmp

          Filesize

          648KB

        • memory/5048-66-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-91-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-94-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-97-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-100-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-103-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-106-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-110-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5048-113-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB