Analysis

  • max time kernel
    147s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/03/2024, 13:36

General

  • Target

    25cb7192c8f7a3bfec2a4817f8552ca7.exe

  • Size

    2.2MB

  • MD5

    25cb7192c8f7a3bfec2a4817f8552ca7

  • SHA1

    cc221059563e9e8025805a42a9a46154feedd55d

  • SHA256

    8463f0c1e828afc585438c68123cc4b55628bc2ec18c58671e13f9439af31fe4

  • SHA512

    fafea40044db5c00ae813ed91da0aeb40eb35602dc4265a5a0d50f95c13cfe878d079e45f42c1eb533dc366f88576f00ab539122783aece8c46b338ef458687f

  • SSDEEP

    49152:32mFbq6TKK/DUgI/Guo+HoJ7P7Ea2ieZl53e7D:m+b1TKqqGXkopP2iex3c

Malware Config

Extracted

Family

socks5systemz

C2

http://bvdvdji.com/search/?q=67e28dd86e58a42e450ca94d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f671ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c0ee959939

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\25cb7192c8f7a3bfec2a4817f8552ca7.exe
    "C:\Users\Admin\AppData\Local\Temp\25cb7192c8f7a3bfec2a4817f8552ca7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Users\Admin\AppData\Local\Temp\is-5EOQ8.tmp\25cb7192c8f7a3bfec2a4817f8552ca7.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-5EOQ8.tmp\25cb7192c8f7a3bfec2a4817f8552ca7.tmp" /SL5="$90170,1960984,54272,C:\Users\Admin\AppData\Local\Temp\25cb7192c8f7a3bfec2a4817f8552ca7.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:756
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1932
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2244

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.2MB

          MD5

          21fd5e2dba33cafdfc9574a3eb37aac5

          SHA1

          ac88f469467f09dc782024e5a6c78bdda925563a

          SHA256

          f338953864a2015f9d3a1a9543dd321c9fbc81123f8c3f303a741bef11ff60e7

          SHA512

          430f4ad309d8e42c5e7e31d5eb555db1dfcf4dc00d4398104ffce23c39a91340f360071bf138fe79e0385bc0cd2e29de89166f3d67fa8deb9bf11f08f65a998a

        • C:\Users\Admin\AppData\Local\Temp\is-5EOQ8.tmp\25cb7192c8f7a3bfec2a4817f8552ca7.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • memory/756-7-0x0000000002240000-0x0000000002241000-memory.dmp

          Filesize

          4KB

        • memory/756-50-0x0000000002240000-0x0000000002241000-memory.dmp

          Filesize

          4KB

        • memory/756-48-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/1628-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1628-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1628-47-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1932-38-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1932-42-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1932-43-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/1932-39-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-54-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-67-0x00000000008F0000-0x0000000000992000-memory.dmp

          Filesize

          648KB

        • memory/2244-53-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-46-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-57-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-60-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-63-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-66-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-68-0x00000000008F0000-0x0000000000992000-memory.dmp

          Filesize

          648KB

        • memory/2244-49-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-74-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-77-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-78-0x00000000008F0000-0x0000000000992000-memory.dmp

          Filesize

          648KB

        • memory/2244-81-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-84-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-87-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-90-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-94-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2244-97-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB