Analysis

  • max time kernel
    141s
  • max time network
    126s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    24/03/2024, 17:35

General

  • Target

    ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe

  • Size

    2.0MB

  • MD5

    c4e8146864f98ad993f1483174635ad1

  • SHA1

    1ab7de41fffe40a1611e5deec20ea313188b1539

  • SHA256

    ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4

  • SHA512

    d1784df7c8c626f1f15c938405823b9fb926584becfc2f34e8afec995f5bca50b542831f7cc36598a80d2cb4a0d5b4fde1008499f5d8ef3b7cc25bd8d4a5d38e

  • SSDEEP

    49152:32Yv6dMl3Y0IIwXgSduJFHoX6RmrJ/ajQDFg0qwbplXY0WFI:mYi2l5I7mHw6REJ/WWNbYPFI

Malware Config

Extracted

Family

socks5systemz

C2

http://ddblngp.info/search/?q=67e28dd83e5cf579400faa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe12c0ee9d9b3e

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\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe
    "C:\Users\Admin\AppData\Local\Temp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:236
    • C:\Users\Admin\AppData\Local\Temp\is-12SN7.tmp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-12SN7.tmp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp" /SL5="$701F8,1776977,54272,C:\Users\Admin\AppData\Local\Temp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1632
      • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
        "C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1492
      • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
        "C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2076

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

          Filesize

          2.0MB

          MD5

          9002b549ae8e8c7dcc447065c93056c7

          SHA1

          67e0428017a232d12202e5c56301e9f9503681b4

          SHA256

          2abb09df861a03e1b88d9074d319dd6a676c62e80a65c058e60f605af2d015ac

          SHA512

          48487168d49c2108a8db699cc64404afe60374b0d55214d157276430f75d6ea944ed2657d6f808999421bfe7c104e27111746605aca0f6a4439049bc403364ca

        • C:\Users\Admin\AppData\Local\Temp\is-12SN7.tmp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp

          Filesize

          677KB

          MD5

          5a1e3d46cb5a24f8e50b2a59d2ba1cf3

          SHA1

          fe86894c4757c144449bc744649b7fb9e03346f1

          SHA256

          d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d

          SHA512

          a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

        • C:\Users\Admin\AppData\Local\Temp\is-T0167.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • memory/236-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/236-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/236-48-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1492-43-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/1492-39-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/1492-41-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/1492-38-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/1632-49-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/1632-51-0x0000000002440000-0x0000000002441000-memory.dmp

          Filesize

          4KB

        • memory/1632-7-0x0000000002440000-0x0000000002441000-memory.dmp

          Filesize

          4KB

        • memory/2076-54-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-68-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-47-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-46-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-55-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-58-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-61-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-64-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-67-0x0000000000980000-0x0000000000A22000-memory.dmp

          Filesize

          648KB

        • memory/2076-50-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-70-0x0000000000980000-0x0000000000A22000-memory.dmp

          Filesize

          648KB

        • memory/2076-75-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-78-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-79-0x0000000000980000-0x0000000000A22000-memory.dmp

          Filesize

          648KB

        • memory/2076-82-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-85-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-88-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-91-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-95-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2076-98-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB