Analysis

  • max time kernel
    141s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/03/2024, 02:08

General

  • Target

    3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe

  • Size

    2.2MB

  • MD5

    664ad7eeb31c7658d3d88e2633b6b2a1

  • SHA1

    29a061044c69b18124d59b1bfba1140bf477df96

  • SHA256

    3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247

  • SHA512

    d786659eb2333e6f33e5187716ed6c6e38bb379a78e07fbb33af51a1469e2422adc93e06dafbcfe3fc29bcc6ee2024058bb50d419eb91f01ce16fb15233d69bc

  • SSDEEP

    49152:32oeqsP/sudBrbboZuydk12g3VEk0H4rAl2uiSHTZY9KWM:moPs3zdVSH+lVHe4El2uiSzZY9FM

Malware Config

Extracted

Family

socks5systemz

C2

http://bfdhuik.com/search/?q=67e28dd86e0bf32a420fa9187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a071ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ed909d39

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Detects executables packed with VMProtect. 19 IoCs
  • 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\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe
    "C:\Users\Admin\AppData\Local\Temp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3520
    • C:\Users\Admin\AppData\Local\Temp\is-CAE8A.tmp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-CAE8A.tmp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp" /SL5="$50060,1950155,54272,C:\Users\Admin\AppData\Local\Temp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:332
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:832
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4152

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

          6a5fac096c2b4232d43de7231986c4b0

          SHA1

          35b823459bdb0a31da727a671a7ed017ad821036

          SHA256

          b61859123f2743a206f50fde171c985564a745f73e60888bfc67ce3a86892f89

          SHA512

          1f3eb2b99e5daa99cf4ee7333f20770d521b0a6d1e8e96bf86be69b01bed4df3684df005943929fd21dabf2e27dea9ffdedcb556f701b1038709b34b2912692e

        • C:\Users\Admin\AppData\Local\Temp\is-83AF9.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-CAE8A.tmp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

        • memory/332-50-0x0000000000590000-0x0000000000591000-memory.dmp

          Filesize

          4KB

        • memory/332-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/332-7-0x0000000000590000-0x0000000000591000-memory.dmp

          Filesize

          4KB

        • memory/832-38-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/832-39-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/832-43-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/832-40-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/3520-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3520-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3520-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4152-54-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-69-0x0000000000730000-0x00000000007D2000-memory.dmp

          Filesize

          648KB

        • memory/4152-53-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-46-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-57-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-60-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-63-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-65-0x0000000000730000-0x00000000007D2000-memory.dmp

          Filesize

          648KB

        • memory/4152-68-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-49-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-74-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-77-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-78-0x0000000000730000-0x00000000007D2000-memory.dmp

          Filesize

          648KB

        • memory/4152-81-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-84-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-87-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-90-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-94-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/4152-97-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB