Analysis

  • max time kernel
    148s
  • max time network
    155s
  • 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, 11:11

General

  • Target

    54a7785ee23bf5aabf61e909cd849e0b1649dccb6edca691fba411e7f36774a4.exe

  • Size

    2.1MB

  • MD5

    9e8ff48c9d1e5d038c8dfabf68eb03dd

  • SHA1

    fbd2bf503a35a325a43fe5570da654f9b080d553

  • SHA256

    54a7785ee23bf5aabf61e909cd849e0b1649dccb6edca691fba411e7f36774a4

  • SHA512

    11401d38d069fe211ec4e9e91c9153463d7db5a72196cb4c2f1339ae05fbf9a8be7af4f6284b839b844e11dd3c0debfeb510f160fe4572ea9bca0a85c7974b6a

  • SSDEEP

    49152:32m/7tt7CbxyTitGhOLx2GsE1y+f4A2xEhoOJae7D:mOvGbcTmFkEYFwac

Malware Config

Extracted

Family

socks5systemz

C2

http://dtaeeyz.info/search/?q=67e28dd83a0ba47b435ca84a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1ee8889b5e4fa9281ae978a071ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe10c9ed96923c

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\54a7785ee23bf5aabf61e909cd849e0b1649dccb6edca691fba411e7f36774a4.exe
    "C:\Users\Admin\AppData\Local\Temp\54a7785ee23bf5aabf61e909cd849e0b1649dccb6edca691fba411e7f36774a4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4168
    • C:\Users\Admin\AppData\Local\Temp\is-FI9UE.tmp\54a7785ee23bf5aabf61e909cd849e0b1649dccb6edca691fba411e7f36774a4.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-FI9UE.tmp\54a7785ee23bf5aabf61e909cd849e0b1649dccb6edca691fba411e7f36774a4.tmp" /SL5="$8006C,1794777,54272,C:\Users\Admin\AppData\Local\Temp\54a7785ee23bf5aabf61e909cd849e0b1649dccb6edca691fba411e7f36774a4.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3240
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1380
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2964

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1.4MB

          MD5

          019f1bfa872d5e52deb8e74a82dff209

          SHA1

          3cf1bf0e2530169ed975c48a1a475b44dfa5c923

          SHA256

          81fe591f1680e69151f3b7b3fb08bbb1db424a71d9e1cec4b231c1eae7dc9ddb

          SHA512

          818c95cf54d650978c0e2f23e7adca46ae9e29a05bb53bf0d81a7fd8e92962f6e651ad9847fd0cbdc918632c8384dea9a355dca8794504240bb4d4e2770dada7

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

          Filesize

          512KB

          MD5

          eb76a96037919c63d23d5964decafd96

          SHA1

          5c23a8447ba60b683b08830fe6100c1ed46a3066

          SHA256

          1f1e827194efb4028bcff5d3a5e55ba7dc097e581ca25ea35714df33ff2b314f

          SHA512

          897073a0e77d69c0ace9dffc1d7d11b6bf6b85f4049b82ba9709807825960982fddd238356f36927d5f2f29f91f9402e88c627e1d5e018927a7bbba2cc5dd81b

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

          Filesize

          2.1MB

          MD5

          2b9cd72d2188e739c982dd6eeb7d734b

          SHA1

          fcb9b736c8987c20cac62abb17726917fe0ed224

          SHA256

          f9eee992963a615a1bbcddfd7bb18ee977d2c207602bdb19fcc76aa52f54bdbc

          SHA512

          32296c818ddb1daf53837f387b73e03ee2dbd878031278dab979c172ab928d86f63f04190ceaea967ffb143ffde25d9a283c1f92d6d7bb354e936c39b779d341

        • C:\Users\Admin\AppData\Local\Temp\is-FI9UE.tmp\54a7785ee23bf5aabf61e909cd849e0b1649dccb6edca691fba411e7f36774a4.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • memory/1380-43-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1380-42-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1380-38-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/1380-39-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-67-0x0000000000920000-0x00000000009C2000-memory.dmp

          Filesize

          648KB

        • memory/2964-81-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-97-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-46-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-94-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-90-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-49-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-87-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-54-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-57-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-60-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-63-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-66-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-68-0x0000000000920000-0x00000000009C2000-memory.dmp

          Filesize

          648KB

        • memory/2964-84-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-74-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-77-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2964-78-0x0000000000920000-0x00000000009C2000-memory.dmp

          Filesize

          648KB

        • memory/3240-7-0x0000000002440000-0x0000000002441000-memory.dmp

          Filesize

          4KB

        • memory/3240-50-0x0000000002440000-0x0000000002441000-memory.dmp

          Filesize

          4KB

        • memory/3240-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/4168-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4168-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4168-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB