Analysis

  • max time kernel
    145s
  • max time network
    151s
  • 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, 17:16

General

  • Target

    2f2b5ff3c33c62109f96e65c1d7601b0.exe

  • Size

    2.0MB

  • MD5

    2f2b5ff3c33c62109f96e65c1d7601b0

  • SHA1

    aa8cfcbacc165b941199a9d56045933af952f995

  • SHA256

    37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81

  • SHA512

    ce770de242104f4f2fe702724f684ee59973cea11e257d997c18eb9f04487b0a6be9843c7b53070243cc2f1dee2a0e540cf1e379b6548cf40cab74a6fbc967ea

  • SSDEEP

    49152:32m/hFz6e3Bw45KMgwkYfyZYOgzynV0NWp6V/VtqkOVH:mobVwpooYQKcpGahH

Malware Config

Extracted

Family

socks5systemz

C2

http://dixabom.info/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c1eb979f39

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\2f2b5ff3c33c62109f96e65c1d7601b0.exe
    "C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:408
    • C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp" /SL5="$60222,1752368,54272,C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2788
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4508
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:5004
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4092 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1224

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            2.1MB

            MD5

            c963718dcfbf0c912a40a46bafcbe6f1

            SHA1

            8633310a8cc797a59a63d8fd54456893402296f8

            SHA256

            9cc03473e79df79135bfad64f51cc2ab03eeba069494045a91ddf0d2745345f6

            SHA512

            f9191caf21877ed861ad09019abf50c591ad5bcb2a478e4518e3e7aa64af73373d46c81e8829e80ac8be78be47d4ea83ff1e420e59297d1cff1718c37ca35c65

          • C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp

            Filesize

            384KB

            MD5

            ba991ea5f80af70db4b3da2557465a22

            SHA1

            e4e66ecef3abd5783f23d9fc9ef5ee07f21eb2c0

            SHA256

            40712b93522563c3c0db91b9d4fc1366588f298e6f64b1e2050ae568f54e1e1c

            SHA512

            b21a39e753cf871eb0cfb7bd68b5887c5635261035ced2049c37224fb9d1063f2d40f5a67ce12149441300135de58c78d479448a882eaaef74a22236e0e3d681

          • C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp

            Filesize

            192KB

            MD5

            115eab531930265a00fb23e55fc31990

            SHA1

            2de77c75b43892aa0d7511e3a99b8f9848827786

            SHA256

            744418eaaf23c708479a42a57e1c17d792dd6714b4478d8e856f07b65b8dacf9

            SHA512

            38c86b40e56251aa4dace68bb98ec6b49b9d5eedd2aa7686323fc32ccd6302740038aa573ab27af425a62870a87d0facaacaa01864956354efdb22b154bbc58b

          • C:\Users\Admin\AppData\Local\Temp\is-FIJF5.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • memory/408-6-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/408-0-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/408-47-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/2788-7-0x0000000002340000-0x0000000002341000-memory.dmp

            Filesize

            4KB

          • memory/2788-52-0x0000000002340000-0x0000000002341000-memory.dmp

            Filesize

            4KB

          • memory/2788-48-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/4508-38-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/4508-39-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/4508-40-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/4508-43-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-51-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-69-0x0000000000940000-0x00000000009E2000-memory.dmp

            Filesize

            648KB

          • memory/5004-55-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-56-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-58-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-61-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-63-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-67-0x0000000000940000-0x00000000009E2000-memory.dmp

            Filesize

            648KB

          • memory/5004-68-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-46-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-75-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-79-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-80-0x0000000000940000-0x00000000009E2000-memory.dmp

            Filesize

            648KB

          • memory/5004-83-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-85-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-88-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/5004-90-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB