Analysis

  • max time kernel
    146s
  • max time network
    152s
  • 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, 07:47

General

  • Target

    43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe

  • Size

    3.8MB

  • MD5

    3b576a87fcf4d14071a2ae50b4820315

  • SHA1

    ff1e63a34b628061eec8a187c6760a5d8bb3dde6

  • SHA256

    43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6

  • SHA512

    ed82f83b30650a3e0211e26aaf6b6b5c1277260e54383fd59c2f92dc7ef42b26348ffca4b39bb996749baba4fb9ef343015d11dfbde3852e2aaf1d6b79987737

  • SSDEEP

    98304:NlYTgIe4K8yOnNvBsCyIneH8SMSmPjqWaebvKxBdRR:HYTgV4rfN5sCytH7OjXaebvKHd

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\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe
    "C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3468
    • C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp" /SL5="$60108,3688551,54272,C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.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:1204
      • 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:1576
      • 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:3140

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-S1O6U.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp

          Filesize

          692KB

          MD5

          d541b0e8d95d631badc9ff20ed59afdd

          SHA1

          617063202f52daa60cb4a04f505418b2e4778d18

          SHA256

          9450c883637e2515bfd934548aa48e6be252bf2ec7527e60f21ff3cb6a40afad

          SHA512

          edeaf7d0c0d6ec805f446f87684b18b5d9fbbd25af506824127e781c231d08357b0fc53dc2c103e89c170c00df6644d635ea0776cdb2b780ecc027e183bf9b6c

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

          Filesize

          4.0MB

          MD5

          879a058be0a9b7eabc6290d98a77bcd2

          SHA1

          7add03cae46b73ef654ec5bc501e1591789a7e3a

          SHA256

          a6b90b2aa04db7e64af64827a52c250f18c11c87d0e494bacf236109f2cb1d05

          SHA512

          8bf91c1490423ff838ba9e3754e7d760d96f15432edff0f1cf97734e1cbd68f0e5134586b351da3f8b40f00f4b6d1387eadbc7f24e2872a5f2b2caa24db67e8a

        • memory/1204-62-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/1204-13-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/1576-54-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/1576-52-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/1576-57-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/1576-56-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/3140-66-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-85-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-109-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-106-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-63-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-102-0x0000000002680000-0x0000000002722000-memory.dmp

          Filesize

          648KB

        • memory/3140-69-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-72-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-75-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-78-0x0000000002680000-0x0000000002722000-memory.dmp

          Filesize

          648KB

        • memory/3140-80-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-60-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-88-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-91-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-94-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-97-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-100-0x0000000000400000-0x0000000000808000-memory.dmp

          Filesize

          4.0MB

        • memory/3140-101-0x0000000002680000-0x0000000002722000-memory.dmp

          Filesize

          648KB

        • memory/3468-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3468-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/3468-61-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB