Analysis

  • max time kernel
    141s
  • max time network
    127s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240214-en
  • resource tags

    arch:x64arch:x86image:win11-20240214-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/03/2024, 14:58

General

  • Target

    439bb9a19bb23e3d53382ca036e1ca4536930faf2d97c90765db4ebe9d3cae5d.exe

  • Size

    2.2MB

  • MD5

    e4bbedd728a07b1b2941e5f59e90ccff

  • SHA1

    7ae938d9e714370991b7015423e7ecf1ca18f5b6

  • SHA256

    439bb9a19bb23e3d53382ca036e1ca4536930faf2d97c90765db4ebe9d3cae5d

  • SHA512

    f89ce3ecbc86d5d91b8a83c805a67457f12bf7a72afb2aabea07b5dd6f2a5e9a80b30757bf9d9b64d6b39538f66c71eecaf143246141677c92438383468ec80c

  • SSDEEP

    49152:32bIF4983HKTmzVLWla5GtqkXlXs0RGtYgCIIyCAITIpHY47H:mbU4CUsLSa5wqO6CRIhX247H

Malware Config

Extracted

Family

socks5systemz

C2

http://bdglieu.com/search/?q=67e28dd83a58f22a160bab1e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a071ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c0ea9c9e32

http://bdglieu.com/search/?q=67e28dd83a58f22a160bab1e7c27d78406abdd88be4b12eab517aa5c96bd86ef968344815a8bbc896c58e713bc90c91936b5281fc235a925ed3e03d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94983bc866921f

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\439bb9a19bb23e3d53382ca036e1ca4536930faf2d97c90765db4ebe9d3cae5d.exe
    "C:\Users\Admin\AppData\Local\Temp\439bb9a19bb23e3d53382ca036e1ca4536930faf2d97c90765db4ebe9d3cae5d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Users\Admin\AppData\Local\Temp\is-OPEQ6.tmp\439bb9a19bb23e3d53382ca036e1ca4536930faf2d97c90765db4ebe9d3cae5d.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-OPEQ6.tmp\439bb9a19bb23e3d53382ca036e1ca4536930faf2d97c90765db4ebe9d3cae5d.tmp" /SL5="$4021E,1952650,54272,C:\Users\Admin\AppData\Local\Temp\439bb9a19bb23e3d53382ca036e1ca4536930faf2d97c90765db4ebe9d3cae5d.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1456
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4132
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3700

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          793KB

          MD5

          f647d6e3f0bf02b0e135167cfa849870

          SHA1

          e970d81ecfe93cb6315993ec7c06c4ee8aa9e6f9

          SHA256

          870788820d1c6eaaef7b92d741998570aec67f0be31cbf2a1e9d3ce5c794f0fa

          SHA512

          d19e384e8a0003510eb7bea54e1eaaa3a1095dfdb49b9de94a71f301f031ff3eddac8cc995fed7724a38b09861145a908dab33dce109b447bb06c3752991b700

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

          Filesize

          515KB

          MD5

          b6bb8fe2a7245a61943e530967af5c7a

          SHA1

          466689829c07f42b7897e91d6afaea3862fda7ed

          SHA256

          8e73cef30b4e40cb42735ea168d584a77231eeffa69146803524333ab585d410

          SHA512

          d3ece1e10495fbce7e5e81404a0f904dd3db30317805de6a844d4c278897fe2349b5d5e348dee395760b561e5f9731839608b4ce7c9885470dacaf4967696954

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

          Filesize

          607KB

          MD5

          89b40eba6a3b17d0930f85a600eb7274

          SHA1

          be3bf06fbc6038d7d10d18eda5638a61330400cf

          SHA256

          d0ea95499c2b4d801bea5ab446fbb3309d8ad69915977b90606abef1e9544a57

          SHA512

          cb152ef521830b3d437d1faad1a050c8a7d55a3414136c4de4a20365dcf81b249e27931ec0d4c84b89448a93e1ba076c75a8c326ee917087a37daa1b3fff59da

        • C:\Users\Admin\AppData\Local\Temp\is-73QTP.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-OPEQ6.tmp\439bb9a19bb23e3d53382ca036e1ca4536930faf2d97c90765db4ebe9d3cae5d.tmp

          Filesize

          66KB

          MD5

          72e3eb8a01cadb1b21e4b4d62f12fc50

          SHA1

          f4a27887ee400e9f094d5e8d45d240c59e0b56f2

          SHA256

          a715e886ffb743f9a5e99b0d15cc84c92780ef0f41b105ccf8508ab52d5ef94d

          SHA512

          3a12c40836a0fff642b2bd22427a80a91e554854a293086f6a40f3279ba37466ebd78a6bbcef8cddd4e1f9adafa2a2803b81ce1380a392325b0d1db20b5b1228

        • C:\Users\Admin\AppData\Local\Temp\is-OPEQ6.tmp\439bb9a19bb23e3d53382ca036e1ca4536930faf2d97c90765db4ebe9d3cae5d.tmp

          Filesize

          73KB

          MD5

          e631c2542041407f09d085679f6f9b40

          SHA1

          56b6ccbb9d749ac3acb792a66be1e9534107ad8c

          SHA256

          9545fbe57daec3e8471116da9ac39b71fa53aedd4bcf3027ad1153c6c6bf7451

          SHA512

          505b4d6db00c78e806494ae161081d2bafda5d83143a20f86d307278a6b9e7410f833691546f08157c851d57010e113b433b779c82c424eebc3352ed4eae6056

        • memory/1456-50-0x0000000002300000-0x0000000002301000-memory.dmp

          Filesize

          4KB

        • memory/1456-7-0x0000000002300000-0x0000000002301000-memory.dmp

          Filesize

          4KB

        • memory/1456-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/3700-53-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-63-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-99-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-46-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-96-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-92-0x00000000023F0000-0x0000000002492000-memory.dmp

          Filesize

          648KB

        • memory/3700-91-0x00000000023F0000-0x0000000002492000-memory.dmp

          Filesize

          648KB

        • memory/3700-49-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-90-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-87-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-54-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-57-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-60-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-84-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-65-0x00000000023F0000-0x0000000002492000-memory.dmp

          Filesize

          648KB

        • memory/3700-69-0x00000000023F0000-0x0000000002492000-memory.dmp

          Filesize

          648KB

        • memory/3700-67-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-74-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-77-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/3700-78-0x00000000023F0000-0x0000000002492000-memory.dmp

          Filesize

          648KB

        • memory/3700-81-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4132-42-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4132-38-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4132-39-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4132-43-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/4876-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4876-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4876-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB