Analysis

  • max time kernel
    144s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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://dlbgqcy.info/search/?q=67e28dd86a5ef62a130aa5197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dfc13c5e89d

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 5 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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe
    "C:\Users\Admin\AppData\Local\Temp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2252
    • C:\Users\Admin\AppData\Local\Temp\is-326EJ.tmp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-326EJ.tmp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp" /SL5="$4010A,1950155,54272,C:\Users\Admin\AppData\Local\Temp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2492
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2724
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2572

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.2MB

          MD5

          6a5fac096c2b4232d43de7231986c4b0

          SHA1

          35b823459bdb0a31da727a671a7ed017ad821036

          SHA256

          b61859123f2743a206f50fde171c985564a745f73e60888bfc67ce3a86892f89

          SHA512

          1f3eb2b99e5daa99cf4ee7333f20770d521b0a6d1e8e96bf86be69b01bed4df3684df005943929fd21dabf2e27dea9ffdedcb556f701b1038709b34b2912692e

        • \Users\Admin\AppData\Local\Temp\is-0N2U1.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-0N2U1.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • \Users\Admin\AppData\Local\Temp\is-326EJ.tmp\3caf20651766fe9fdcc804393c554152365e2e10fe62db7afb11259be2888247.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

        • memory/2252-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2252-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2492-9-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/2492-43-0x00000000037D0000-0x0000000003A13000-memory.dmp

          Filesize

          2.3MB

        • memory/2492-58-0x00000000037D0000-0x0000000003A13000-memory.dmp

          Filesize

          2.3MB

        • memory/2492-57-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/2492-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2572-75-0x0000000002290000-0x0000000002332000-memory.dmp

          Filesize

          648KB

        • memory/2572-85-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-51-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-105-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-56-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-102-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-98-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-61-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-62-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-65-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-68-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-71-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-74-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-95-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-76-0x0000000002290000-0x0000000002332000-memory.dmp

          Filesize

          648KB

        • memory/2572-82-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-53-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-86-0x0000000002290000-0x0000000002332000-memory.dmp

          Filesize

          648KB

        • memory/2572-89-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2572-92-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2724-44-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2724-45-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2724-46-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/2724-49-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB