Analysis

  • max time kernel
    142s
  • max time network
    129s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/03/2024, 12:47

General

  • Target

    af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.exe

  • Size

    2.0MB

  • MD5

    81a85f3125aefa6f06649cbf53136988

  • SHA1

    ee72a132008d3d1394bb8c00c534014748edf94a

  • SHA256

    af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636

  • SHA512

    e35e322759210c09797a2f0079c2e35c498a278d3a9eaf4e5dcccd8c834828e0d0fb1b2cc3630b76b4b373f3b3e5be252fe0fba65254fd2b9e68f73cb8ae4bf4

  • SSDEEP

    49152:32JBpBDCRjWetUW7NUN3/qLr2CQzB2qaQoe7D:mzpBD2aetUcUN3/ACzpKc

Malware Config

Extracted

Family

socks5systemz

C2

http://ezvmlic.ua/search/?q=67e28dd83e5cf579400faa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe10c9e7959339

http://ezvmlic.ua/search/?q=67e28dd83e5cf579400faa1d7c27d78406abdd88be4b12eab517aa5c96bd86ef978748825a8bbc896c58e713bc90c91936b5281fc235a925ed3e07d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee949b32c56f9f14

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\af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.exe
    "C:\Users\Admin\AppData\Local\Temp\af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Users\Admin\AppData\Local\Temp\is-N7TA1.tmp\af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-N7TA1.tmp\af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.tmp" /SL5="$4021A,1784413,54272,C:\Users\Admin\AppData\Local\Temp\af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1388
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4856
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:416

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          896KB

          MD5

          cbc1b8f52ef833c245e70d79fc076e0a

          SHA1

          fdad6c0b06d8541ad53856a44cc928b3aa8c68b0

          SHA256

          ff63b68830ca593300bbb2f7b33baba0ee8d2d1127c5d78df092d3cf32e60fd7

          SHA512

          0c041ea5838e3fcbfe77fe5a4c8a62095442c4d22109c6f13a5537cd82795e5aa9a6070a14762e2c39f9a35d3e8ff0b6066401be534eca0d6e133a710f896d5e

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

          Filesize

          2.0MB

          MD5

          e0be643656cf2b26337e1c880860a0ff

          SHA1

          4b142324fce15d65ac607d14b3cc736ad06ec4db

          SHA256

          85f81ec4027dfa1ecadc0cd91ba941563a034abd95f198bae8ed4c1921546483

          SHA512

          e7bf1495f8aae0fcbe4c84c79e852687fc7206d296f4bc1c69a64e94f3db1495ece04a8a39fb0d9db193c1accce42e340f7db427b73dcb06ec76ce57877b3ab1

        • C:\Users\Admin\AppData\Local\Temp\is-J51P2.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-N7TA1.tmp\af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

        • memory/416-79-0x0000000000A00000-0x0000000000AA2000-memory.dmp

          Filesize

          648KB

        • memory/416-78-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-100-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-97-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-93-0x0000000000A00000-0x0000000000AA2000-memory.dmp

          Filesize

          648KB

        • memory/416-92-0x0000000000A00000-0x0000000000AA2000-memory.dmp

          Filesize

          648KB

        • memory/416-91-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-46-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-88-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-85-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-49-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-82-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-75-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-54-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-55-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-58-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-61-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-64-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-67-0x0000000000A00000-0x0000000000AA2000-memory.dmp

          Filesize

          648KB

        • memory/416-68-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/416-70-0x0000000000A00000-0x0000000000AA2000-memory.dmp

          Filesize

          648KB

        • memory/1388-7-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/1388-50-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/1388-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2020-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2020-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2020-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4856-51-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/4856-43-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/4856-42-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/4856-38-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB

        • memory/4856-39-0x0000000000400000-0x000000000060A000-memory.dmp

          Filesize

          2.0MB