Analysis

  • max time kernel
    142s
  • max time network
    130s
  • 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, 06:43

General

  • Target

    0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe

  • Size

    3.7MB

  • MD5

    fe7431c10e5cf8a482167cc4fd5786d4

  • SHA1

    823e9fe16d980ebe79a3d88642c2cbb4bfce5c18

  • SHA256

    0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400

  • SHA512

    a579c53ae8f46c7fde28140a7876c0b37048539739ba8cffea80e3fcd741dbd388c57d8a2be09a179140f3bf85fc7cb82e165e20cfde9060a8b7ee96e824bc56

  • SSDEEP

    98304:N7H3qCve5Mb4hDRTwhRbRmWkDQj4B+LpWEdRR:d3PDUlMHYWp8BAbd

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\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe
    "C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4324
    • C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp" /SL5="$50100,3561838,54272,C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.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:2620
      • 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:4988
      • 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:252

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp

          Filesize

          692KB

          MD5

          d541b0e8d95d631badc9ff20ed59afdd

          SHA1

          617063202f52daa60cb4a04f505418b2e4778d18

          SHA256

          9450c883637e2515bfd934548aa48e6be252bf2ec7527e60f21ff3cb6a40afad

          SHA512

          edeaf7d0c0d6ec805f446f87684b18b5d9fbbd25af506824127e781c231d08357b0fc53dc2c103e89c170c00df6644d635ea0776cdb2b780ecc027e183bf9b6c

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

          Filesize

          3.9MB

          MD5

          aacde46abe13e8b9e06afb3f813d922f

          SHA1

          fdb421f8110f7d5f25264e27650c771a7bd1b90d

          SHA256

          d276699123f0b8c5f409e93f19300137ced44dd3f4c5c3d8f617cc7260686c6e

          SHA512

          16e64b221a32a282f55738827c73962b5db1d685c88551aee689b71c65044d450024961246c4be03e05e20acb4f837b62f47e7dc40c1bd9a6f1672e9d32dcbbb

        • memory/252-91-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-94-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-109-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-106-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-102-0x00000000025F0000-0x0000000002692000-memory.dmp

          Filesize

          648KB

        • memory/252-101-0x00000000025F0000-0x0000000002692000-memory.dmp

          Filesize

          648KB

        • memory/252-59-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-100-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-97-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-62-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-65-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-68-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-71-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-74-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-77-0x00000000025F0000-0x0000000002692000-memory.dmp

          Filesize

          648KB

        • memory/252-80-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-85-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/252-88-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2620-8-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2620-61-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4324-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4324-60-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4324-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/4988-56-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/4988-53-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/4988-52-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB