Analysis

  • max time kernel
    142s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-06-2024 23:24

General

  • Target

    717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe

  • Size

    4.8MB

  • MD5

    99a9c6a07e1c9e5a9fcaac8426b786ae

  • SHA1

    49c94499d6c7a963e3e4785010bd8a8de3e51bbb

  • SHA256

    717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e

  • SHA512

    600f504c4dfa25853a1f052dd3f0b0428f135215651de7e583ed0d900fd7f8355ed78a434649dde386bf3ddb572117d369b2ae59b5f32ed9592e3ef9c1f9450c

  • SSDEEP

    98304:mhJbYijBuXJSNvoizfa3cf6di971pVnK4YVJefbZ10SP1LP/QwsK:6JUSNv9zfa3cV9pnZ110SP1LnQhK

Malware Config

Extracted

Family

socks5systemz

C2

bdwiydz.com

http://bdwiydz.com/search/?q=67e28dd86d5ff17c1407ad1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff613c7ee909f3e

http://bdwiydz.com/search/?q=67e28dd86d5ff17c1407ad1a7c27d78406abdd88be4b12eab517aa5c96bd86ef91804d825a8bbc896c58e713bc90c91b36b5281fc235a925ed3e56d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9c983ccc6a9313

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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe
    "C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4584
    • C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp" /SL5="$80118,4753091,54272,C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:224
      • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1168
      • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3888
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4252,i,16710585221322798697,8586257254049248207,262144 --variations-seed-version --mojo-platform-channel-handle=4400 /prefetch:8
    1⤵
      PID:928

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\is-3771S.tmp\_isetup\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp

      Filesize

      680KB

      MD5

      1b33096a94e46692ad4d81f4d479a4e6

      SHA1

      c1258a69a0e5888e3292f4c9956a930a2d858e88

      SHA256

      3cee8718764f6cd90530e38825c9496c2b34e74421c3d07afce6a55f746c2a47

      SHA512

      3623b7ae8ad23074614b5f7264ae8a952c9b5de8882559075bf76a87d8fa3632d66c6897fa738e82c6bbedee1e4ee8f169dfc61decafef9978c32d77dd9214f6

    • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

      Filesize

      2.8MB

      MD5

      034a19364a29f0ec88b84ea44eee384d

      SHA1

      9ea97df0dc8d7aa392f5c792adb79285677534cc

      SHA256

      73158339e43631670b50e61ada31c6ade8ab2f98ff569430b25acb22e5e9696b

      SHA512

      ef6114679bde6c6d8ea6b317980fe8070481546d79ee6b1550284fb990993085719c6081e09d1ddc127869483f127f42e2531ded0e7ec52c5645d3d94865a584

    • memory/224-70-0x0000000000400000-0x00000000004BA000-memory.dmp

      Filesize

      744KB

    • memory/224-16-0x0000000000400000-0x00000000004BA000-memory.dmp

      Filesize

      744KB

    • memory/1168-65-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/1168-59-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/1168-60-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/1168-63-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-74-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-93-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-117-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-114-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-71-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-109-0x0000000002360000-0x0000000002402000-memory.dmp

      Filesize

      648KB

    • memory/3888-77-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-80-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-83-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-86-0x0000000002360000-0x0000000002402000-memory.dmp

      Filesize

      648KB

    • memory/3888-88-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-68-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-96-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-99-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-102-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-105-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-108-0x0000000000400000-0x00000000006C7000-memory.dmp

      Filesize

      2.8MB

    • memory/3888-110-0x0000000002360000-0x0000000002402000-memory.dmp

      Filesize

      648KB

    • memory/4584-0-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/4584-2-0x0000000000401000-0x000000000040B000-memory.dmp

      Filesize

      40KB

    • memory/4584-69-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB