Analysis

  • max time kernel
    144s
  • max time network
    143s
  • 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, 12:37

General

  • Target

    aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.exe

  • Size

    3.4MB

  • MD5

    aeee9e2312f78fb246028f593bb46d09

  • SHA1

    999c39634579881adb75b2ac4680b565f1583172

  • SHA256

    aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e

  • SHA512

    4be53fefc17ca4114c63aadea30004a7cfad11a505dba023729a1b59702a4e89cb9ab007120124829f63c3c72f2cd2d58cfef112735ba6fd3765cc8243f79df2

  • SSDEEP

    98304:N3ZfwBuCvbqC0i9hjr2xL7rA86di+c37dh:ZZfOuCtdjqPA5ErL

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 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\aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.exe
    "C:\Users\Admin\AppData\Local\Temp\aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4712
    • C:\Users\Admin\AppData\Local\Temp\is-6T9LV.tmp\aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-6T9LV.tmp\aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp" /SL5="$13022C,3310936,54272,C:\Users\Admin\AppData\Local\Temp\aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.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:2924
      • 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:2804
      • 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:5608

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-6T9LV.tmp\aec9a0fbad7f4c73eb73897139115e966018adee2e550f0b4cdc9aea13c8304e.tmp

          Filesize

          692KB

          MD5

          4a034cc8809b92775041cc5a46c52ab0

          SHA1

          3f2c748bf00a2aa6f3a86c6dfd8a3d667007a54d

          SHA256

          4dfae16c80e15d6e45b60b5b847e1a641af184e3e06727fc3406355de9227e60

          SHA512

          e1d4c9bff206800681a17b4487978a290d365a6593678741b6924394217bc352f1132add01e8e90b9b1b78f1f3bd606c2ff51955c8673503c5e28fb04afc71f6

        • C:\Users\Admin\AppData\Local\Temp\is-H0I0I.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

          Filesize

          3.1MB

          MD5

          417ddf93714ba30253af108796907a18

          SHA1

          4e9c6c65ff0294eb4a3c68ecbc245cd3fda1e15f

          SHA256

          a8037cc1f34a5f69fd5afce05634245e3bd6cd05dd750dcc40a25a721579b2a6

          SHA512

          6e204ccb061b87e041789ce12f4cfe9143f42f4c222c6c64efb8da13330dd651b69ce0fbfde3c942e7c3a5d43c27369319f1f495e24f61adb6975afb7ca8f5f7

        • memory/2804-52-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/2804-53-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/2804-54-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/2804-57-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/2924-62-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2924-13-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4712-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/4712-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4712-61-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/5608-66-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-86-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-60-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-67-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-70-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-73-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-76-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-79-0x0000000000A50000-0x0000000000AF2000-memory.dmp

          Filesize

          648KB

        • memory/5608-80-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-63-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-89-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-90-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-93-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-96-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-99-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-102-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-106-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/5608-109-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB