Analysis

  • max time kernel
    141s
  • max time network
    127s
  • 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, 13:19

General

  • Target

    cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe

  • Size

    2.0MB

  • MD5

    acb4ff970a6f5a421f388d8db9ef27a5

  • SHA1

    d66686a615df8a8a6f8f36400c13fdc9f55dbb0c

  • SHA256

    cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be

  • SHA512

    2ab6226fc9ce4cea1376692377483642d5a9e83f0e2becf3ca5d81116b3bb8b62263a9c38521de9b79c4921718885a09070ef6e2d21ed2f2cb253a1e1f482bca

  • SSDEEP

    49152:32SwGJoA887GzJVZ3qTC4SdEdosi9psTJiP9Pe7D:m9A887cJn3oCnEmsisTYc

Malware Config

Extracted

Family

socks5systemz

C2

http://boilyji.com/search/?q=67e28dd8655ba479120da84d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978a071ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c0ef959b3d

http://boilyji.com/search/?q=67e28dd8655ba479120da84d7c27d78406abdd88be4b12eab517aa5c96bd86e590864496148ab2865b77f80ebad9c70f7cb63037ed2ab423a4654383ba915d911ec07bb606a0708727e40ea678c45abbe74ffb0e2807e12571c17f3e83fe16c1ee979a3bcd6e90

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\cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe
    "C:\Users\Admin\AppData\Local\Temp\cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1176
    • C:\Users\Admin\AppData\Local\Temp\is-791QL.tmp\cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-791QL.tmp\cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp" /SL5="$C006C,1756126,54272,C:\Users\Admin\AppData\Local\Temp\cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4876
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3660
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3280

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          220KB

          MD5

          eb2a1704a27d69722596d71a61fd070c

          SHA1

          71bb555c6071c882fd8e3e93d9be848bf8e57b3c

          SHA256

          baa1e1ecf3dc88cd2804cd0076d829578db5acb72da93c14939fab3fb064d83c

          SHA512

          533daec59bd9586fe7f8e08dc38a03fad37c8f081d855d8a8f5adefec4f618b7fef1eaae8fd8fccc2ac56df5dbd78e0354e977e64ff96e0a7b6cf1ddcb588252

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

          Filesize

          2.0MB

          MD5

          c79648f3750d1cefcdb36833c743d263

          SHA1

          894203940c5346ae015be20e017dee9b409ddaf5

          SHA256

          89af231d1c627b6bede896ef3eb73d8bc48e4a9e37accb71b7f6723a3fe5953b

          SHA512

          052ca6068b18f2d7fcdedcfe01021ce480987c8bf09cda91abb719c9647314c276380563ab1b3fba9cf635499e17eed26c75b7c80bdd59f2ca2c7626c3dd9cf8

        • C:\Users\Admin\AppData\Local\Temp\is-4229S.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-791QL.tmp\cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

        • memory/1176-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1176-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1176-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3280-54-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-81-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-99-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-46-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-96-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-92-0x00000000008D0000-0x0000000000972000-memory.dmp

          Filesize

          648KB

        • memory/3280-49-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-91-0x00000000008D0000-0x0000000000972000-memory.dmp

          Filesize

          648KB

        • memory/3280-53-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-90-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-57-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-60-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-63-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-65-0x00000000008D0000-0x0000000000972000-memory.dmp

          Filesize

          648KB

        • memory/3280-68-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-69-0x00000000008D0000-0x0000000000972000-memory.dmp

          Filesize

          648KB

        • memory/3280-74-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-77-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-78-0x00000000008D0000-0x0000000000972000-memory.dmp

          Filesize

          648KB

        • memory/3280-87-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3280-84-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3660-39-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3660-38-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/3660-42-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/4876-7-0x0000000000690000-0x0000000000691000-memory.dmp

          Filesize

          4KB

        • memory/4876-50-0x0000000000690000-0x0000000000691000-memory.dmp

          Filesize

          4KB

        • memory/4876-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB