Analysis

  • max time kernel
    147s
  • max time network
    155s
  • 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, 11:18

General

  • Target

    2dd2b2faee53b4a06c9e2e491abd4d4c30f7f56016388ea6411166aad9fe61f2.exe

  • Size

    2.0MB

  • MD5

    8c21bd0b1d23594afa89a9e9403a2b36

  • SHA1

    89a160096340fdce8d3a57ceaa001bd16033bbd3

  • SHA256

    2dd2b2faee53b4a06c9e2e491abd4d4c30f7f56016388ea6411166aad9fe61f2

  • SHA512

    8a780e64340e022383d39020de8c72ff6d4cd2c241f32b238414189885057f1a99229930274b5e1121be85dc57a8b552d292abdc0ffb18447626e32df4a07fd7

  • SSDEEP

    49152:32U6xDldTFciHFZ7oyyiF7WCFjWBFOx5NXkAFrfe7D:m53z7Hy47WC+FOx5Ntrfc

Malware Config

Extracted

Family

socks5systemz

C2

http://bxtnvoi.com/search/?q=67e28dd86e58a42e450ca94d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f671ea771795af8e05c646db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe10c9ed929f39

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\2dd2b2faee53b4a06c9e2e491abd4d4c30f7f56016388ea6411166aad9fe61f2.exe
    "C:\Users\Admin\AppData\Local\Temp\2dd2b2faee53b4a06c9e2e491abd4d4c30f7f56016388ea6411166aad9fe61f2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2636
    • C:\Users\Admin\AppData\Local\Temp\is-GU18N.tmp\2dd2b2faee53b4a06c9e2e491abd4d4c30f7f56016388ea6411166aad9fe61f2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-GU18N.tmp\2dd2b2faee53b4a06c9e2e491abd4d4c30f7f56016388ea6411166aad9fe61f2.tmp" /SL5="$401F2,1758553,54272,C:\Users\Admin\AppData\Local\Temp\2dd2b2faee53b4a06c9e2e491abd4d4c30f7f56016388ea6411166aad9fe61f2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4268
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4840
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4912

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

          a6729f04305f0a78c82a2985755352de

          SHA1

          5b279e9f936813b2b7908f4efd33fecba611f18c

          SHA256

          382e61a8fd8da009a652b690d0a0a174dc4dd7c05efa9e0652616783060984a9

          SHA512

          a08f6ee795723a3482f0901d91c6de028f93a126f6e1e3fde6f603b7375cc0ba6957075b980fcf66b43cafd1af48bed00ad5df3b0fe5fa0c5ae047d911800c87

        • C:\Users\Admin\AppData\Local\Temp\is-GU18N.tmp\2dd2b2faee53b4a06c9e2e491abd4d4c30f7f56016388ea6411166aad9fe61f2.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

        • C:\Users\Admin\AppData\Local\Temp\is-Q9LR4.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • memory/2636-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2636-46-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4268-49-0x00000000007B0000-0x00000000007B1000-memory.dmp

          Filesize

          4KB

        • memory/4268-6-0x00000000007B0000-0x00000000007B1000-memory.dmp

          Filesize

          4KB

        • memory/4268-47-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/4840-37-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4840-38-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4840-39-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4840-42-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-52-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-72-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-45-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-53-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-56-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-59-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-62-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-65-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-66-0x00000000006F0000-0x0000000000792000-memory.dmp

          Filesize

          648KB

        • memory/4912-48-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-75-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-76-0x00000000006F0000-0x0000000000792000-memory.dmp

          Filesize

          648KB

        • memory/4912-79-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-82-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-85-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-88-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-92-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4912-95-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB