Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/03/2024, 11:26

General

  • Target

    9e8ff48c9d1e5d038c8dfabf68eb03dd.exe

  • Size

    2.1MB

  • MD5

    9e8ff48c9d1e5d038c8dfabf68eb03dd

  • SHA1

    fbd2bf503a35a325a43fe5570da654f9b080d553

  • SHA256

    54a7785ee23bf5aabf61e909cd849e0b1649dccb6edca691fba411e7f36774a4

  • SHA512

    11401d38d069fe211ec4e9e91c9153463d7db5a72196cb4c2f1339ae05fbf9a8be7af4f6284b839b844e11dd3c0debfeb510f160fe4572ea9bca0a85c7974b6a

  • SSDEEP

    49152:32m/7tt7CbxyTitGhOLx2GsE1y+f4A2xEhoOJae7D:mOvGbcTmFkEYFwac

Malware Config

Extracted

Family

socks5systemz

C2

http://bwmuadm.com/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe10c9ec979e38

Signatures

  • Detect Socks5Systemz Payload 2 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 WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9e8ff48c9d1e5d038c8dfabf68eb03dd.exe
    "C:\Users\Admin\AppData\Local\Temp\9e8ff48c9d1e5d038c8dfabf68eb03dd.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2108
    • C:\Users\Admin\AppData\Local\Temp\is-20RLC.tmp\9e8ff48c9d1e5d038c8dfabf68eb03dd.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-20RLC.tmp\9e8ff48c9d1e5d038c8dfabf68eb03dd.tmp" /SL5="$90118,1794777,54272,C:\Users\Admin\AppData\Local\Temp\9e8ff48c9d1e5d038c8dfabf68eb03dd.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3496
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:680
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:400
  • 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 --mojo-platform-channel-handle=3740 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2224

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

            Filesize

            2.1MB

            MD5

            2b9cd72d2188e739c982dd6eeb7d734b

            SHA1

            fcb9b736c8987c20cac62abb17726917fe0ed224

            SHA256

            f9eee992963a615a1bbcddfd7bb18ee977d2c207602bdb19fcc76aa52f54bdbc

            SHA512

            32296c818ddb1daf53837f387b73e03ee2dbd878031278dab979c172ab928d86f63f04190ceaea967ffb143ffde25d9a283c1f92d6d7bb354e936c39b779d341

          • C:\Users\Admin\AppData\Local\Temp\is-20RLC.tmp\9e8ff48c9d1e5d038c8dfabf68eb03dd.tmp

            Filesize

            677KB

            MD5

            92f7775908bb12183914bb0753782913

            SHA1

            8d1091da36832942d48f2fe9a1a216fdd556b9c4

            SHA256

            a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

            SHA512

            7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

          • C:\Users\Admin\AppData\Local\Temp\is-CO70C.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • memory/400-77-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-74-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-93-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-87-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-84-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-81-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-78-0x0000000000780000-0x0000000000822000-memory.dmp

            Filesize

            648KB

          • memory/400-67-0x0000000000780000-0x0000000000822000-memory.dmp

            Filesize

            648KB

          • memory/400-47-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-90-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-50-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-68-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-54-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-55-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-58-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-61-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/400-64-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/680-39-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/680-43-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/680-40-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/680-38-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/2108-45-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/2108-0-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/2108-2-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/3496-51-0x00000000007A0000-0x00000000007A1000-memory.dmp

            Filesize

            4KB

          • memory/3496-48-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/3496-7-0x00000000007A0000-0x00000000007A1000-memory.dmp

            Filesize

            4KB