Analysis

  • max time kernel
    144s
  • max time network
    144s
  • 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, 01:41

General

  • Target

    76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe

  • Size

    2.2MB

  • MD5

    49fe4735e75193274cde5a90dca8d507

  • SHA1

    4e8a3bb2b436e7e638795f5a1616bedae717ac84

  • SHA256

    76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1

  • SHA512

    68cf27357218af330befadeb22c6b97d2020e5a49a66a9e6c80c3615cefba15478195d99657e22ea835cf083914dad3bf23664f9126f2b0139222dbe7f901a37

  • SSDEEP

    49152:32EhCr4Pj565Uc1zixnsx0UbwXAkcHeKf/+lAyJqM:mEl6CnxyF2A3Hei+l1JqM

Malware Config

Extracted

Family

socks5systemz

C2

http://bfgrmey.com/search/?q=67e28dd86b5ea42a430af91a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c646db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ef9c9d3c

Signatures

  • Detect Socks5Systemz Payload 3 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\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe
    "C:\Users\Admin\AppData\Local\Temp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4292
    • C:\Users\Admin\AppData\Local\Temp\is-HC40J.tmp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-HC40J.tmp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp" /SL5="$12004C,1963376,54272,C:\Users\Admin\AppData\Local\Temp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3096
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1780
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1392

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.2MB

          MD5

          d673fc73e6c80bd052d4011784c56c9a

          SHA1

          8e043078c2a4ec36f876c9250aa90eb9cc525944

          SHA256

          18b0ca673a0c396acbe28a1c7b4fefde2e51aa7126f52000bf74d3bd93377113

          SHA512

          0a7f2ddb026f362bb4aaf7cdc4569646b39698768f0046a04f05c91157034142d27238d20dde17cdb0f4644acc3fc3a7ad9fd564f48e10840bd3ba0b800d7e3f

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

          Filesize

          1.1MB

          MD5

          eba5119c12beb2d043b23f079854ad0f

          SHA1

          7c75c786e470b090c0361c7fbdbb0a9373083114

          SHA256

          d9c15de7e066f36fb5301ebe27f5150d7624fbaaac0179f04aa527a4f61e2a5a

          SHA512

          366ea929c1a2f21bcdf18544cae72790df333bfdef6d9c3092b828e9199fa1ec8819eb319fb4fb1c119d41530135fb4c35f88a9a3126242595dfe59a8364738c

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

          Filesize

          1.5MB

          MD5

          4b8e7057fadaa253c955679006516394

          SHA1

          5167a514fb663088a407d75ce6bde5fa4de207b5

          SHA256

          522aba332bd519b9815331ca34cce047bcf07aed49c86d6b4a36acac35905d6e

          SHA512

          2cfa1163c20d8296f2e7c06af33d586b44ba59da4e52416887a90ec37e64f184260fa0fec4e57e0e984993eec441be7eee25e2d9a2d52ae3d3af58eeed709798

        • C:\Users\Admin\AppData\Local\Temp\is-HC40J.tmp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

        • C:\Users\Admin\AppData\Local\Temp\is-T74BJ.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • memory/1392-69-0x0000000000880000-0x0000000000922000-memory.dmp

          Filesize

          648KB

        • memory/1392-78-0x0000000000880000-0x0000000000922000-memory.dmp

          Filesize

          648KB

        • memory/1392-97-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-94-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-90-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-87-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-84-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-46-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-81-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-77-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-49-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-74-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-53-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-54-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-57-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-60-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-63-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1392-65-0x0000000000880000-0x0000000000922000-memory.dmp

          Filesize

          648KB

        • memory/1392-68-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1780-38-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1780-43-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1780-42-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1780-39-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3096-50-0x00000000007A0000-0x00000000007A1000-memory.dmp

          Filesize

          4KB

        • memory/3096-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/3096-7-0x00000000007A0000-0x00000000007A1000-memory.dmp

          Filesize

          4KB

        • memory/4292-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4292-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4292-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB