Analysis

  • max time kernel
    153s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/03/2024, 17:33

General

  • Target

    6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe

  • Size

    2.2MB

  • MD5

    1a489ca4bdfa6ea3a6430bf966707379

  • SHA1

    286d9051f5e278a41d00afb4b2fd852f02061ec9

  • SHA256

    6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7

  • SHA512

    6eedc23a6814ebcafe29a3aa6694e85bd904359c8b9d106aec10779bd106e3891e13ed463fbe835a8448b9b1414845d96bee91853f5a29ab635ceec19d590b60

  • SSDEEP

    49152:32c3kPZbNm6fSEhfqZhgRigMmsbZ0QM0TxI:mysoKUZhqMms+QMmI

Malware Config

Extracted

Family

socks5systemz

C2

http://ezhgixg.ua/search/?q=67e28dd86f5af1211209a81b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978f071ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c0ee939c33

Signatures

  • Detect Socks5Systemz Payload 2 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\6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe
    "C:\Users\Admin\AppData\Local\Temp\6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4740
    • C:\Users\Admin\AppData\Local\Temp\is-GV801.tmp\6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-GV801.tmp\6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp" /SL5="$4011A,1965922,54272,C:\Users\Admin\AppData\Local\Temp\6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2384
      • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
        "C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1984
      • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
        "C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3876

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

          Filesize

          2.2MB

          MD5

          355fab8714f0d248c3b86fd4397f0299

          SHA1

          eaf7221379ca0791a3a28ef2f0f2369edc5433ba

          SHA256

          3437eea441202018e43dc7fd474f95b4bfdf67416a4de3804b71798d24e7526c

          SHA512

          91b6d7f06441a08925a38878f7902c17a400f192ecdc40efd8d72a7d2b57bdf8c183fc77e66ef1078b4981fd94fc79b6fcc8e53c7932f0122e304a3c12573154

        • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

          Filesize

          1.7MB

          MD5

          20ee241c4237d6da8aacc389c48fe88c

          SHA1

          3b69158bcfcd57d074850bf78afe8654d3c221ea

          SHA256

          b2045115a2cf9335d4ff1fbf0f45a0b1e1a1051a051cba10221820eb85de0d85

          SHA512

          545af02ea4dba811087d7463320dcd70957cc065e3b7a868b999391d43e2d92fdf79d6df22e095111a03c29790cb10de1dec7aa48d31e4b8cd4256e9f1985bd7

        • C:\Users\Admin\AppData\Local\Temp\is-A8OED.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-GV801.tmp\6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp

          Filesize

          677KB

          MD5

          5a1e3d46cb5a24f8e50b2a59d2ba1cf3

          SHA1

          fe86894c4757c144449bc744649b7fb9e03346f1

          SHA256

          d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d

          SHA512

          a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

        • memory/1984-42-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/1984-43-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/1984-38-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/1984-39-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2384-51-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/2384-49-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2384-7-0x0000000002340000-0x0000000002341000-memory.dmp

          Filesize

          4KB

        • memory/3876-64-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-67-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-97-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-45-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-50-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-94-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-54-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-55-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-58-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-68-0x00000000009A0000-0x0000000000A42000-memory.dmp

          Filesize

          648KB

        • memory/3876-47-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-90-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-61-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-74-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-77-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-78-0x00000000009A0000-0x0000000000A42000-memory.dmp

          Filesize

          648KB

        • memory/3876-81-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-84-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/3876-87-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/4740-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4740-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4740-48-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB