Analysis

  • max time kernel
    147s
  • max time network
    154s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/03/2024, 13:50

General

  • Target

    45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe

  • Size

    2.2MB

  • MD5

    4b9151a0fcc00b7ebe774bb2489bc530

  • SHA1

    40fa43f01b6bdf5e946bb2088fec786f3d3b708a

  • SHA256

    45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07

  • SHA512

    8ea55f1c06178f87edade8fbbd4031905195fa86a422d5e07c6c06f2cf538f4649691d867b740a0c6b2a178ab39f7dfde1a95108266e3dff74df33361930866d

  • SSDEEP

    49152:321Jclh7yWuOym9ASMvcW63qheRFv2vLsmL2H2H5QihKF/nyGH:m1JkuWukASkncRszZ2H2H5NUVnXH

Malware Config

Extracted

Family

socks5systemz

C2

http://aqfbioh.ru/search/?q=67e28dd83d54f12b140cff197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c0ee9c9b38

http://aqfbioh.ru/search/?q=67e28dd83d54f12b140cff197c27d78406abdd88be4b12eab517aa5c96bd86ec9c8f44805a8bbc896c58e713bc90c91836b5281fc235a925ed3e01d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94983bcc669715

Signatures

  • Detect Socks5Systemz Payload 5 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\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe
    "C:\Users\Admin\AppData\Local\Temp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Users\Admin\AppData\Local\Temp\is-58Q9S.tmp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-58Q9S.tmp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp" /SL5="$400D4,1966609,54272,C:\Users\Admin\AppData\Local\Temp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1844
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4816
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4320

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1.9MB

          MD5

          ebf4d688e6eb687904e1be35ad2ab980

          SHA1

          b76e3c5527012c399bc141945cc128c7aef4f84f

          SHA256

          3d66b7dcb8334e3088d2013fe0fd3a3cb88088516d92a6f9876780cef2e5e641

          SHA512

          ad9736640c92869a62e37bf89794f2f0ff5a63f751e4642df6dbd83a977b8d18afcae3d76454b62e157b5cbb0768cafc3a2191405abbfcb4d52f2e5c0bc96d15

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

          Filesize

          2.0MB

          MD5

          1512d12d1737a7ec75368bcc1b4e293f

          SHA1

          83921393dab40cc49f4f2935ad0970f4f0e43b20

          SHA256

          4f2a19dd0e07c2af1abd49a32458a813eeafa31f4c142b17ecde39be86dbbf08

          SHA512

          48164f8237432f6b9ac6a6ae5258db4f4e7ab6579f34904f54be3b01cd6b551ae24ed931c2cb695fe85e21578896b9fee4d900af4b6ef8a5a5f702d6a5902268

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

          Filesize

          1.2MB

          MD5

          612bdce52aec6ff11e321a415abedbce

          SHA1

          8d64b523d464c232f6b06d910a86dd48b1929b30

          SHA256

          2979be9b3e8f940c8fc435c918cd7d8cf0d4f3fe637b1c67ee40903991907c4b

          SHA512

          fd041c827b3a568864ab681c3ac9cd6200d10eee7d84dcbb89a0d70f6708e7dea0f68464c629413bc8f85f275fd88ac5ef9b0005c0a203e9cc2bba28242c437d

        • C:\Users\Admin\AppData\Local\Temp\is-58Q9S.tmp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • memory/1844-6-0x0000000002310000-0x0000000002311000-memory.dmp

          Filesize

          4KB

        • memory/1844-50-0x0000000002310000-0x0000000002311000-memory.dmp

          Filesize

          4KB

        • memory/1844-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2388-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2388-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4320-54-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-68-0x0000000000980000-0x0000000000A22000-memory.dmp

          Filesize

          648KB

        • memory/4320-46-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-44-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-99-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-49-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-96-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-53-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-92-0x0000000000980000-0x0000000000A22000-memory.dmp

          Filesize

          648KB

        • memory/4320-57-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-60-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-63-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-66-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-91-0x0000000000980000-0x0000000000A22000-memory.dmp

          Filesize

          648KB

        • memory/4320-67-0x0000000000980000-0x0000000000A22000-memory.dmp

          Filesize

          648KB

        • memory/4320-74-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-77-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-78-0x0000000000980000-0x0000000000A22000-memory.dmp

          Filesize

          648KB

        • memory/4320-81-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-84-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-87-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4320-90-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4816-37-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4816-41-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4816-38-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4816-42-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB