Analysis

  • max time kernel
    150s
  • 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, 15:16

General

  • Target

    8d2f10057105ec032c4aab9f1d3b7a25.exe

  • Size

    2.0MB

  • MD5

    8d2f10057105ec032c4aab9f1d3b7a25

  • SHA1

    b8023025f8021b52ce3b2498c15babbdacc29de1

  • SHA256

    4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55

  • SHA512

    cc7bd42fc34b7d330ebbe63fede57e9d35d2629374cd2bc19cbb7c92fec3973ad67701069e5e9178da8fa521784d6d40239ef02b6c4ce71aaa7da8e4675186fb

  • SSDEEP

    49152:32rWdv1Gfzcw/B4PdlcDK+hagJbUaSbT/wbNeSy1oyrcjxM8RH:mrhzcuBAYe+kgJYfwbNZMoMixzRH

Malware Config

Extracted

Family

socks5systemz

C2

http://ckmivjp.net/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c0e8959933

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 WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8d2f10057105ec032c4aab9f1d3b7a25.exe
    "C:\Users\Admin\AppData\Local\Temp\8d2f10057105ec032c4aab9f1d3b7a25.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3852
    • C:\Users\Admin\AppData\Local\Temp\is-3150R.tmp\8d2f10057105ec032c4aab9f1d3b7a25.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-3150R.tmp\8d2f10057105ec032c4aab9f1d3b7a25.tmp" /SL5="$C003C,1741795,54272,C:\Users\Admin\AppData\Local\Temp\8d2f10057105ec032c4aab9f1d3b7a25.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:820
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3952
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4864
  • 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=4456 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2524

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            2.0MB

            MD5

            027a5dd229bede5d7943a7a83a50287b

            SHA1

            b93bd15e0d23a5b9d69f18b243f0b24868f219f8

            SHA256

            68c369695c29dd90a03c9fbb6d82d6dc70e3e770441bb21f7c10428ce6bfaf53

            SHA512

            fbcec0e4b177a5f7ec84b716e040240fd81522e2fac1c860b7e2e8b120719a3592d788410037b54d44c3bddfeaee19781a06987e97628ab8445fb270904aa5fc

          • C:\Users\Admin\AppData\Local\Temp\is-3150R.tmp\8d2f10057105ec032c4aab9f1d3b7a25.tmp

            Filesize

            677KB

            MD5

            d394fc26de69f06950dc1c71959b0261

            SHA1

            7c9448fc3582f19763eaa8e3c5383b7873aee017

            SHA256

            405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

            SHA512

            63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

          • C:\Users\Admin\AppData\Local\Temp\is-NLVE8.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • memory/820-49-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/820-7-0x0000000002240000-0x0000000002241000-memory.dmp

            Filesize

            4KB

          • memory/820-52-0x0000000002240000-0x0000000002241000-memory.dmp

            Filesize

            4KB

          • memory/3852-1-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/3852-48-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/3952-38-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/3952-39-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/3952-40-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/3952-43-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-57-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-68-0x00000000008D0000-0x0000000000972000-memory.dmp

            Filesize

            648KB

          • memory/4864-47-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-54-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-45-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-59-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-61-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-64-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-67-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-50-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-69-0x00000000008D0000-0x0000000000972000-memory.dmp

            Filesize

            648KB

          • memory/4864-75-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-79-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-81-0x00000000008D0000-0x0000000000972000-memory.dmp

            Filesize

            648KB

          • memory/4864-83-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-85-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-88-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-91-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-96-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB

          • memory/4864-98-0x0000000000400000-0x0000000000610000-memory.dmp

            Filesize

            2.1MB