Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/03/2024, 12:48

General

  • Target

    52163387ac79fcae8f19d7801ebd967cb8399bf029b992aa4d19dcb952f36fe8.exe

  • Size

    2.0MB

  • MD5

    15f5ede7f8cbfde19d9771f8e5e5f70e

  • SHA1

    ed70338066bd55ebef1553505b53106c9646cb1e

  • SHA256

    52163387ac79fcae8f19d7801ebd967cb8399bf029b992aa4d19dcb952f36fe8

  • SHA512

    eb2e41dbf0e0f65ba667ad5e73fb5410999d1d829c8657b07c67e03e1f13b182e30cebf8a71ad649dc26df374180ad2fc14015f6701497975ec1cb823aeef6c6

  • SSDEEP

    49152:323zq2BfD+megndQOaeTSAImO6VPQb5SwYWLI50wYe7D:m3m2BfDUgdQEHZVoFSwYWclYc

Malware Config

Extracted

Family

socks5systemz

C2

http://ebhjcaw.ua/search/?q=67e28dd83e5cf579400faa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe10c9e794933b

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\52163387ac79fcae8f19d7801ebd967cb8399bf029b992aa4d19dcb952f36fe8.exe
    "C:\Users\Admin\AppData\Local\Temp\52163387ac79fcae8f19d7801ebd967cb8399bf029b992aa4d19dcb952f36fe8.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3028
    • C:\Users\Admin\AppData\Local\Temp\is-NQT3U.tmp\52163387ac79fcae8f19d7801ebd967cb8399bf029b992aa4d19dcb952f36fe8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-NQT3U.tmp\52163387ac79fcae8f19d7801ebd967cb8399bf029b992aa4d19dcb952f36fe8.tmp" /SL5="$60102,1766439,54272,C:\Users\Admin\AppData\Local\Temp\52163387ac79fcae8f19d7801ebd967cb8399bf029b992aa4d19dcb952f36fe8.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:988
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4080
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3856

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

          3a5e4e943ed34a40d43ee82d0c515eee

          SHA1

          f31e0f03a5636619378d5acd590e430fc02c95ff

          SHA256

          8a295030127fd8f738756a907195bcbdfdd0637865cc4e6507c4abcac790fc00

          SHA512

          938326696049cf60db866364d6589f58eef5733f59b145f07b73343575918a792b42fc1e8659d6409fd90dba3ea4efd3c4f1b834a958cfae5e306fa2882d3ab2

        • C:\Users\Admin\AppData\Local\Temp\is-JO1IV.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-NQT3U.tmp\52163387ac79fcae8f19d7801ebd967cb8399bf029b992aa4d19dcb952f36fe8.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

        • memory/988-7-0x0000000002440000-0x0000000002441000-memory.dmp

          Filesize

          4KB

        • memory/988-50-0x0000000002440000-0x0000000002441000-memory.dmp

          Filesize

          4KB

        • memory/988-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/3028-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3028-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3028-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3856-67-0x0000000000940000-0x00000000009E2000-memory.dmp

          Filesize

          648KB

        • memory/3856-66-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-95-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-92-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-49-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-89-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-54-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-57-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-60-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-63-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-46-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-86-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-73-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-76-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-77-0x0000000000940000-0x00000000009E2000-memory.dmp

          Filesize

          648KB

        • memory/3856-80-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3856-83-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4080-39-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4080-41-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4080-43-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/4080-38-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB