Analysis

  • max time kernel
    143s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    25/03/2024, 01:24

General

  • Target

    8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe

  • Size

    2.2MB

  • MD5

    25cb7192c8f7a3bfec2a4817f8552ca7

  • SHA1

    cc221059563e9e8025805a42a9a46154feedd55d

  • SHA256

    8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4

  • SHA512

    fafea40044db5c00ae813ed91da0aeb40eb35602dc4265a5a0d50f95c13cfe878d079e45f42c1eb533dc366f88576f00ab539122783aece8c46b338ef458687f

  • SSDEEP

    49152:32mFbq6TKK/DUgI/Guo+HoJ7P7Ea2ieZl53e7D:m+b1TKqqGXkopP2iex3c

Malware Config

Extracted

Family

socks5systemz

C2

http://bdcofwf.com/search/?q=67e28dd86554fa2a495aa4197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a071ea771795af8e05c642db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dfd18c9eb94

Signatures

  • Detect Socks5Systemz Payload 3 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\8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe
    "C:\Users\Admin\AppData\Local\Temp\8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Users\Admin\AppData\Local\Temp\is-O43E6.tmp\8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-O43E6.tmp\8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp" /SL5="$4010A,1960984,54272,C:\Users\Admin\AppData\Local\Temp\8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2928
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2584
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2708

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          882KB

          MD5

          af9740c2d56dde60fe9a6e69eb1aa502

          SHA1

          d61bfa3c86eb06764ee3590c655b51b7fb957e66

          SHA256

          e5679ea02676293ef7981cd6bc5c7aeabce764b04705bbc7ebd5136167abd7bd

          SHA512

          f3aad462ec562c16b14a05ebe8daa0b4c2bf2484b34bc1d681983826f8932e7c78f61a50dd70f15770029daa85015c15fe0c77441dd2b6f6f582f140d8248c03

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

          Filesize

          185KB

          MD5

          f36587665eb8f20e7864a1d0e0c0a8eb

          SHA1

          9fc93a232533d06718dcf046c74508bca52f8b36

          SHA256

          f0a27c8d055634ce76c70f811e6c87f499f3e031d14dd64a0d6c1b55bf407146

          SHA512

          811e9505eb467dff75d9d4ff7d5ce2e831b87d20f42e077d7b2fd0dcd92e1f833d4c41e70c832be8aa5f4a2efb60e0733414b127ff75040bf991398ec217a307

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

          Filesize

          2.2MB

          MD5

          21fd5e2dba33cafdfc9574a3eb37aac5

          SHA1

          ac88f469467f09dc782024e5a6c78bdda925563a

          SHA256

          f338953864a2015f9d3a1a9543dd321c9fbc81123f8c3f303a741bef11ff60e7

          SHA512

          430f4ad309d8e42c5e7e31d5eb555db1dfcf4dc00d4398104ffce23c39a91340f360071bf138fe79e0385bc0cd2e29de89166f3d67fa8deb9bf11f08f65a998a

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • \Users\Admin\AppData\Local\Temp\is-O43E6.tmp\8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

        • memory/2584-47-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2584-49-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2584-44-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2584-45-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-81-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-70-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-104-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-51-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-53-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-101-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-97-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-56-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-94-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-60-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-61-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-64-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-67-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-91-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-73-0x00000000022A0000-0x0000000002342000-memory.dmp

          Filesize

          648KB

        • memory/2708-75-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-76-0x00000000022A0000-0x0000000002342000-memory.dmp

          Filesize

          648KB

        • memory/2708-88-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-84-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2708-85-0x00000000022A0000-0x0000000002342000-memory.dmp

          Filesize

          648KB

        • memory/2928-43-0x00000000035F0000-0x0000000003832000-memory.dmp

          Filesize

          2.3MB

        • memory/2928-57-0x00000000003C0000-0x00000000003C1000-memory.dmp

          Filesize

          4KB

        • memory/2928-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2928-9-0x00000000003C0000-0x00000000003C1000-memory.dmp

          Filesize

          4KB

        • memory/3056-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3056-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB