Analysis

  • max time kernel
    143s
  • max time network
    129s
  • 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, 10:26

General

  • Target

    34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.exe

  • Size

    3.7MB

  • MD5

    4d3dcc0efebaa29fc6dfa41fda013c6f

  • SHA1

    d43de39edcf393773370ae718ebde60c022ee495

  • SHA256

    34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce

  • SHA512

    3460b71f1054fe0cb0f4d3542f8a93f5b1c21f92038e823d2af180a604c8c023d4c677e1ea9791cf79bb12fac2c2c771b862c0f87f3cb5107e38d11ccf100bce

  • SSDEEP

    98304:NgUDGJ0yC1egV9WtnhbF3GkJ82COiATeSaFPyb9ILDurdw:7u4odF3Gf2DiGecb9I+rG

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\34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.exe
    "C:\Users\Admin\AppData\Local\Temp\34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:428
    • C:\Users\Admin\AppData\Local\Temp\is-L34E2.tmp\34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-L34E2.tmp\34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.tmp" /SL5="$50272,3564417,54272,C:\Users\Admin\AppData\Local\Temp\34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.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:4200
      • 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:4892
      • 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:1700

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-0U4P1.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-L34E2.tmp\34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.tmp

          Filesize

          692KB

          MD5

          e27c73e7da7324243f44020bdb626e16

          SHA1

          3efcc9a1d7e3951b249021b9adda9bced6a703c2

          SHA256

          8d33851dabd3a3d8701eb8d48b7da5d6bdc73d178ae9d567c35e87e0a1060926

          SHA512

          3bdd8971bfc950ca5fc8b6475f0e18a79cce186b4b39843560590fd24873a9725c1c4f50df8d81aa9f74dc6d351188594e2426a9fe3f6bf6c0d2bb8e9b3b7216

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

          Filesize

          3.9MB

          MD5

          8643c69ca4f55fdc06857ccd3208262d

          SHA1

          5161dd8f4b28ab63de6f957462b00c25417929d2

          SHA256

          70da0077e3906752c3f3463e1fa3a1a0fd72d413e4a073190fb95a90a808837a

          SHA512

          ae2eb941e7e43d020e43ee79c12585f3c03a2dfcf6ec0ee8a6417ca00f87dabfef03e9a0d838bf6e7c10fbb09a4948c3043defe01fbaed76e7de09074c43d92d

        • memory/428-61-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/428-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/428-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1700-88-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-91-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-109-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-106-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-60-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-102-0x0000000002A20000-0x0000000002AC2000-memory.dmp

          Filesize

          648KB

        • memory/1700-101-0x0000000002A20000-0x0000000002AC2000-memory.dmp

          Filesize

          648KB

        • memory/1700-63-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-66-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-69-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-72-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-75-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-78-0x0000000002A20000-0x0000000002AC2000-memory.dmp

          Filesize

          648KB

        • memory/1700-82-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-85-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-100-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-97-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1700-94-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/4200-10-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4200-62-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4892-53-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/4892-52-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/4892-55-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/4892-57-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB