Analysis

  • max time kernel
    144s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/03/2024, 14:53

General

  • Target

    4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.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://buisdgd.com/search/?q=67e28dd86e0bf32a420fa9187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a071ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c0ea93933e

http://buisdgd.com/search/?q=67e28dd86e0bf32a420fa9187c27d78406abdd88be4b12eab517aa5c96bd86ee9c864c805a8bbc896c58e713bc90c91836b5281fc235a925ed3e03d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee94983bc8699f13

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\4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.exe
    "C:\Users\Admin\AppData\Local\Temp\4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Users\Admin\AppData\Local\Temp\is-VG3LL.tmp\4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-VG3LL.tmp\4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp" /SL5="$5011A,1741795,54272,C:\Users\Admin\AppData\Local\Temp\4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1424
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2116
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3212

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-S944S.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-VG3LL.tmp\4d79b7d721263bd35ec4d7bf5af5a694d7e3ddb0b10b607a6b9e0f1b75d00b55.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

        • memory/1424-7-0x0000000000760000-0x0000000000761000-memory.dmp

          Filesize

          4KB

        • memory/1424-49-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/1424-51-0x0000000000760000-0x0000000000761000-memory.dmp

          Filesize

          4KB

        • memory/2044-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2044-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2044-48-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2116-38-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2116-43-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2116-40-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2116-39-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-54-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-75-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-47-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-45-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-55-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-58-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-61-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-64-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-66-0x0000000000870000-0x0000000000912000-memory.dmp

          Filesize

          648KB

        • memory/3212-69-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-70-0x0000000000870000-0x0000000000912000-memory.dmp

          Filesize

          648KB

        • memory/3212-50-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-78-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-79-0x0000000000870000-0x0000000000912000-memory.dmp

          Filesize

          648KB

        • memory/3212-82-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-85-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-88-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-91-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-92-0x0000000000870000-0x0000000000912000-memory.dmp

          Filesize

          648KB

        • memory/3212-93-0x0000000000870000-0x0000000000912000-memory.dmp

          Filesize

          648KB

        • memory/3212-97-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3212-100-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB