Analysis

  • max time kernel
    143s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-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://bgkriib.com/search/?q=67e28dd86554fa2a495aa4197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a071ea771795af8e05c642db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668cfe15c2ec97

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\2f2b5ff3c33c62109f96e65c1d7601b0.exe
    "C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2064
    • C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp" /SL5="$70126,1752368,54272,C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2840
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2564
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2524

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.1MB

          MD5

          c963718dcfbf0c912a40a46bafcbe6f1

          SHA1

          8633310a8cc797a59a63d8fd54456893402296f8

          SHA256

          9cc03473e79df79135bfad64f51cc2ab03eeba069494045a91ddf0d2745345f6

          SHA512

          f9191caf21877ed861ad09019abf50c591ad5bcb2a478e4518e3e7aa64af73373d46c81e8829e80ac8be78be47d4ea83ff1e420e59297d1cff1718c37ca35c65

        • \Users\Admin\AppData\Local\Temp\is-22U8P.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-22U8P.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • \Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

        • memory/2064-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2064-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2064-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2524-51-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-56-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-102-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-95-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-92-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-82-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-105-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-89-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-98-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-86-0x00000000025D0000-0x0000000002672000-memory.dmp

          Filesize

          648KB

        • memory/2524-85-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-61-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-62-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-65-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-68-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-71-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-74-0x00000000025D0000-0x0000000002672000-memory.dmp

          Filesize

          648KB

        • memory/2524-75-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2524-77-0x00000000025D0000-0x0000000002672000-memory.dmp

          Filesize

          648KB

        • memory/2564-45-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2564-49-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2564-46-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2564-44-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2840-58-0x0000000003710000-0x0000000003921000-memory.dmp

          Filesize

          2.1MB

        • memory/2840-57-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/2840-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2840-43-0x0000000003710000-0x0000000003921000-memory.dmp

          Filesize

          2.1MB

        • memory/2840-9-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB