Analysis

  • max time kernel
    143s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-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://ckifpsi.net/search/?q=67e28dd8690cfb204406a51a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978fe71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668cff16c0ed9d

http://ckifpsi.net/search/?q=67e28dd8690cfb204406a51a7c27d78406abdd88be4b12eab517aa5c96bd86e993864d865a8bbc896c58e713bc90c91c36b5281fc235a925ed3e5dd6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c1ed959d3bcf67

Signatures

  • Detect Socks5Systemz Payload 5 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8d2f10057105ec032c4aab9f1d3b7a25.exe
    "C:\Users\Admin\AppData\Local\Temp\8d2f10057105ec032c4aab9f1d3b7a25.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2964
    • C:\Users\Admin\AppData\Local\Temp\is-110FC.tmp\8d2f10057105ec032c4aab9f1d3b7a25.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-110FC.tmp\8d2f10057105ec032c4aab9f1d3b7a25.tmp" /SL5="$400BE,1741795,54272,C:\Users\Admin\AppData\Local\Temp\8d2f10057105ec032c4aab9f1d3b7a25.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2624
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2876

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.0MB

          MD5

          027a5dd229bede5d7943a7a83a50287b

          SHA1

          b93bd15e0d23a5b9d69f18b243f0b24868f219f8

          SHA256

          68c369695c29dd90a03c9fbb6d82d6dc70e3e770441bb21f7c10428ce6bfaf53

          SHA512

          fbcec0e4b177a5f7ec84b716e040240fd81522e2fac1c860b7e2e8b120719a3592d788410037b54d44c3bddfeaee19781a06987e97628ab8445fb270904aa5fc

        • \Users\Admin\AppData\Local\Temp\is-110FC.tmp\8d2f10057105ec032c4aab9f1d3b7a25.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

        • \Users\Admin\AppData\Local\Temp\is-FBCIV.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-FBCIV.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • memory/2624-48-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2624-44-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2624-45-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2624-49-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2796-9-0x00000000001D0000-0x00000000001D1000-memory.dmp

          Filesize

          4KB

        • memory/2796-42-0x00000000034F0000-0x0000000003700000-memory.dmp

          Filesize

          2.1MB

        • memory/2796-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2796-58-0x00000000034F0000-0x0000000003700000-memory.dmp

          Filesize

          2.1MB

        • memory/2796-57-0x00000000001D0000-0x00000000001D1000-memory.dmp

          Filesize

          4KB

        • memory/2876-61-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-75-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-56-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-53-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-51-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-107-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-62-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-65-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-68-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-71-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-74-0x0000000002310000-0x00000000023B2000-memory.dmp

          Filesize

          648KB

        • memory/2876-104-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-76-0x0000000002310000-0x00000000023B2000-memory.dmp

          Filesize

          648KB

        • memory/2876-82-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-85-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-86-0x0000000002310000-0x00000000023B2000-memory.dmp

          Filesize

          648KB

        • memory/2876-89-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-92-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-95-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-98-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2876-99-0x0000000002310000-0x00000000023B2000-memory.dmp

          Filesize

          648KB

        • memory/2876-100-0x0000000002310000-0x00000000023B2000-memory.dmp

          Filesize

          648KB

        • memory/2964-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2964-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB