Analysis

  • max time kernel
    143s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23/03/2024, 14:41

General

  • Target

    4480d63a90a0688c746403e1619450e9.exe

  • Size

    2.0MB

  • MD5

    4480d63a90a0688c746403e1619450e9

  • SHA1

    ea08f3f1433884829b85581e1af96e513ad732c1

  • SHA256

    2b6d8240ec9d04c86a70334f9d04d47188a8962d7cccfe1553ba6e9e77040518

  • SHA512

    5bcfe8490601f9706179d629007a35ff200f4f120a2beede02a09b85a61a80e87efde3dc5c88eb0837b9098cf7ffbf003d33500d315cc6e98ab2604c6c2fb89e

  • SSDEEP

    24576:320xgvrNSewSFhsA9UaMa2qvnB2ZV4Y5tPufQZ0zXHjHI/8oO74rlPVAxK/z9x+c:32h/s22qPDYmfNbHbQ/JPyxKfIz2ZhH

Malware Config

Extracted

Family

socks5systemz

C2

http://cczwvti.net/search/?q=67e28dd86a5ef62a130aa5197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c642db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668cff15c9ec97

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • 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\4480d63a90a0688c746403e1619450e9.exe
    "C:\Users\Admin\AppData\Local\Temp\4480d63a90a0688c746403e1619450e9.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Users\Admin\AppData\Local\Temp\is-CRKUD.tmp\4480d63a90a0688c746403e1619450e9.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-CRKUD.tmp\4480d63a90a0688c746403e1619450e9.tmp" /SL5="$400EE,1788021,54272,C:\Users\Admin\AppData\Local\Temp\4480d63a90a0688c746403e1619450e9.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2820
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2644
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2664

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          2.1MB

          MD5

          85116302d8af3431e866b1a5d0cf5d5e

          SHA1

          09e15b963c590fb5054f1e1c84ecdc0ce2526a6d

          SHA256

          f20413a98b4094027921ed785672cebc78251a9977c572d0dd77804460734fe1

          SHA512

          957cb4a3b2017542ea4dc6e3903255f3de14a282c8a34ea244602fa91584a7965e594258ac86b0e1f323dcdd1b3f3fb33d65fdbe43d4747f1282d59e1cc6cfbc

        • \Users\Admin\AppData\Local\Temp\is-CRKUD.tmp\4480d63a90a0688c746403e1619450e9.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

        • \Users\Admin\AppData\Local\Temp\is-NE0H2.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-NE0H2.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • memory/2224-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2224-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2224-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2644-49-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2644-44-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2644-45-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2644-48-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-82-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-89-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-105-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-102-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-56-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-98-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-95-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-61-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-62-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-65-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-68-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-71-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-74-0x00000000025D0000-0x0000000002672000-memory.dmp

          Filesize

          648KB

        • memory/2664-76-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-77-0x00000000025D0000-0x0000000002672000-memory.dmp

          Filesize

          648KB

        • memory/2664-92-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-85-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2664-86-0x00000000025D0000-0x0000000002672000-memory.dmp

          Filesize

          648KB

        • memory/2664-51-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2820-12-0x00000000003D0000-0x00000000003D1000-memory.dmp

          Filesize

          4KB

        • memory/2820-58-0x00000000034C0000-0x00000000036D1000-memory.dmp

          Filesize

          2.1MB

        • memory/2820-57-0x00000000003D0000-0x00000000003D1000-memory.dmp

          Filesize

          4KB

        • memory/2820-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2820-43-0x00000000034C0000-0x00000000036D1000-memory.dmp

          Filesize

          2.1MB