Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/03/2024, 01:15

General

  • Target

    a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.exe

  • Size

    2.0MB

  • MD5

    1815652bbc9863f1fbee1e2d177c5227

  • SHA1

    f86eca55fac4a8946071ffb058a5e53035c9d0b3

  • SHA256

    a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a

  • SHA512

    0c2cf56cadbfa70d1729065ac045f4c8d2bd48f70cb7eb7e9c0f80b4dec885cf811ec36891b5719e3ec78867f72613b646acd2ef6ebf44095561c6627e5a9a06

  • SSDEEP

    49152:326OR4kwI4U06inapc4sxtPOFwtwLMbb6hMOms36HM:mgen7paxt2FwSwbbAZCM

Malware Config

Extracted

Family

socks5systemz

C2

http://ckcivmb.net/search/?q=67e28dd86c09f220490efa1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978fe71ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c2e6969332

http://ckcivmb.net/search/?q=67e28dd86c09f220490efa1c7c27d78406abdd88be4b12eab517aa5c96bd86e9948048815a8bbc896c58e713bc90c91f36b5281fc235a925ed3e5dd6bd974a95129070b611e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee949939c46c9f1f

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\a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.exe
    "C:\Users\Admin\AppData\Local\Temp\a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Users\Admin\AppData\Local\Temp\is-CT49C.tmp\a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-CT49C.tmp\a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.tmp" /SL5="$A0062,1780134,54272,C:\Users\Admin\AppData\Local\Temp\a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3728
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:748
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3348

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

          Filesize

          2.0MB

          MD5

          b60d0a7cea04fb71a6390e773a6bf4fe

          SHA1

          3ea965ab6eb2c45f67fb19230f484f4399d5f87c

          SHA256

          15d252823210d0ab4adc8881242b3a367c46f2fcbe40a580581c20ab25ac886f

          SHA512

          e9a5f989954d49269bdd0c45e4ff4f228edee84a3e35a1fa2e4fdb283c9ac41a028abe40bf55927b9b958e6f91d4fcbca997b8aa28341c3139b3e12504fd6313

        • C:\Users\Admin\AppData\Local\Temp\is-9M4OJ.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-CT49C.tmp\a8757a8ee40ba6cb4339d00a2e92c6783779fa6363ec433b28e10612fe8fc14a.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

        • memory/748-39-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/748-43-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/748-40-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/748-38-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-54-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-81-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-99-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-46-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-96-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-92-0x0000000000770000-0x0000000000812000-memory.dmp

          Filesize

          648KB

        • memory/3348-49-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-91-0x0000000000770000-0x0000000000812000-memory.dmp

          Filesize

          648KB

        • memory/3348-53-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-90-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-57-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-60-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-63-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-65-0x0000000000770000-0x0000000000812000-memory.dmp

          Filesize

          648KB

        • memory/3348-68-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-69-0x0000000000770000-0x0000000000812000-memory.dmp

          Filesize

          648KB

        • memory/3348-74-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-77-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-78-0x0000000000770000-0x0000000000812000-memory.dmp

          Filesize

          648KB

        • memory/3348-87-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3348-84-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/3728-7-0x0000000002100000-0x0000000002101000-memory.dmp

          Filesize

          4KB

        • memory/3728-50-0x0000000002100000-0x0000000002101000-memory.dmp

          Filesize

          4KB

        • memory/3728-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/4472-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4472-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4472-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB