Analysis

  • max time kernel
    152s
  • 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, 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://buefokn.com/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c0ee9c9b3c

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\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe
    "C:\Users\Admin\AppData\Local\Temp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:852
    • C:\Users\Admin\AppData\Local\Temp\is-T84VP.tmp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-T84VP.tmp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp" /SL5="$A0066,1966609,54272,C:\Users\Admin\AppData\Local\Temp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3088
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3900
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1980
  • 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=3700 --field-trial-handle=2280,i,4114443225282860369,4764091921472631035,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2156

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            2.2MB

            MD5

            0341a71415d5c43879d5941ca65396ba

            SHA1

            8526a5a86e7d11b73633e27629351087079d2291

            SHA256

            fe804d96f2cf809d1e13b9df072c5ee2b44fe71164a845d3cea4041d428203ee

            SHA512

            6498e788438dcbf334176011bbf1a12bd98542552b12af56f2b4a8fc385247e1a1f052dba26211fc72ec1357125d6d800638946c427cc1dcd853353ec7d70f0e

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

            Filesize

            2.0MB

            MD5

            ba680047c6a652b99b0a8c940b845fd0

            SHA1

            2815d21e08c32e95d0bc9b72cf554fc74fe9c6e2

            SHA256

            cf520fe196b796c85c4334bca21fefd76f3ef86133ece16120434e4f4ad2c4d2

            SHA512

            c5739d0325a3278080d195ad4d3b95012ddee7e260d3ff7fda29a4d2106eee2a126de1fb8fd36bfef4fb2679efe1ba24602bf9ad4cdd1e9885d6fa9c20b1673e

          • C:\Users\Admin\AppData\Local\Temp\is-137H0.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • C:\Users\Admin\AppData\Local\Temp\is-T84VP.tmp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp

            Filesize

            677KB

            MD5

            d394fc26de69f06950dc1c71959b0261

            SHA1

            7c9448fc3582f19763eaa8e3c5383b7873aee017

            SHA256

            405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

            SHA512

            63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

          • memory/852-2-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/852-0-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/852-48-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/1980-47-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-98-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-85-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-91-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-45-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-80-0x00000000008F0000-0x0000000000992000-memory.dmp

            Filesize

            648KB

          • memory/1980-95-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-82-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-50-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-88-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-54-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-55-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-58-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-61-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-64-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-67-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-69-0x00000000008F0000-0x0000000000992000-memory.dmp

            Filesize

            648KB

          • memory/1980-75-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/1980-78-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/3088-52-0x00000000006A0000-0x00000000006A1000-memory.dmp

            Filesize

            4KB

          • memory/3088-49-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/3088-7-0x00000000006A0000-0x00000000006A1000-memory.dmp

            Filesize

            4KB

          • memory/3900-43-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/3900-40-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/3900-39-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB

          • memory/3900-38-0x0000000000400000-0x0000000000642000-memory.dmp

            Filesize

            2.3MB