Analysis

  • max time kernel
    150s
  • max time network
    135s
  • 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 23:56

General

  • Target

    334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.exe

  • Size

    4.8MB

  • MD5

    8836d2a69d2d59e0beb368534207b667

  • SHA1

    a5089bc672b7f5916d06c0522321e8bdfffdcaa6

  • SHA256

    334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f

  • SHA512

    00a178c41589c93da4b1385d4da2062f33d5f499fcc8916c0fca2a463cee34cf2d6c4fd365c8dfe475341475c8f47c8b7efc409844a280fae45a1cfc73f11452

  • SSDEEP

    98304:msAua+ZFYilw5ujPX0KliS8iVFag25zmL2MXJRFQID/:1BZwMjf0K7F/wCyMr+IT

Malware Config

Extracted

Family

socks5systemz

C2

cclpxkx.net

http://cclpxkx.net/search/?q=67e28dd86d5ff17c1407ad1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff613c7ec919e3b

http://cclpxkx.net/search/?q=67e28dd86d5ff17c1407ad1a7c27d78406abdd88be4b12eab517aa5c96bd86ef91804d825a8bbc896c58e713bc90c91b36b5281fc235a925ed3e56d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9c983cce6b9216

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\334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.exe
    "C:\Users\Admin\AppData\Local\Temp\334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2928
    • C:\Users\Admin\AppData\Local\Temp\is-4FD7M.tmp\334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-4FD7M.tmp\334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.tmp" /SL5="$80060,4744462,54272,C:\Users\Admin\AppData\Local\Temp\334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3080
      • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2380
      • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3988
  • 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=4372,i,6576818814118437872,11004518367271063231,262144 --variations-seed-version --mojo-platform-channel-handle=1428 /prefetch:8
    1⤵
      PID:3560

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\is-4FD7M.tmp\334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.tmp

      Filesize

      680KB

      MD5

      893bd2f08862ec5904f78d072c7a274c

      SHA1

      d6e87230b90b418345000a8d696bd552469d8d06

      SHA256

      0fa65c54cf864083c000adcc62456314b7f3b882e120de4de1ba08c565dd40a5

      SHA512

      940abebb53504b2a4fc252eb36ab75a1523abe72aa5a5ace6f15deacc59f259177d5c7f23af9e2a85ccde43126d0ae4b10bde56fb0b3380b97851a39e6569fc3

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

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

      Filesize

      2.8MB

      MD5

      e7e9871d5b763bb1d8c75f98bfd32b99

      SHA1

      3b39b35f1fdee524b0b841f56eaa21f346d7d501

      SHA256

      6251f2d8bd3ad9482b20f7425b0163ec37deddf2594880f824978251f43c8e2a

      SHA512

      e1968c869e44da79e9725926fddcb8b3dc139f8c4833557191b3e8bfcb4639e2e0bedf26bdbdfc71f44a878c56bb8c3adeb75066cd9864e2177154d10bafc230

    • memory/2380-59-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/2380-60-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/2380-65-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/2380-63-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/2928-3-0x0000000000401000-0x000000000040B000-memory.dmp

      Filesize

      40KB

    • memory/2928-0-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/2928-69-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3080-70-0x0000000000400000-0x00000000004BA000-memory.dmp

      Filesize

      744KB

    • memory/3080-12-0x0000000000400000-0x00000000004BA000-memory.dmp

      Filesize

      744KB

    • memory/3988-74-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-96-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-68-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-77-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-80-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-83-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-86-0x0000000002510000-0x00000000025B2000-memory.dmp

      Filesize

      648KB

    • memory/3988-90-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-93-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-71-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-99-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-102-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-105-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-108-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-109-0x0000000002510000-0x00000000025B2000-memory.dmp

      Filesize

      648KB

    • memory/3988-110-0x0000000002510000-0x00000000025B2000-memory.dmp

      Filesize

      648KB

    • memory/3988-114-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB

    • memory/3988-117-0x0000000000400000-0x00000000006C8000-memory.dmp

      Filesize

      2.8MB