Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240611-en
  • resource tags

    arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    24/06/2024, 16:43

General

  • Target
    9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe
  • Size 4.8MB
  • Sample240624-t773cssdjf
  • SHA256 9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • socks5systemz

C2
  • aqmtqri.ru

  • http://aqmtqri.ru/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff613c4e8919e3d

  • http://aqmtqri.ru/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12eab517aa5c96bd86ea93834896148ab2865b77f80ebad9c50f7cb63037ed2ab423a4344383ba915d911ec07bb606a0708727e40ea678c751bbe34efb0e2807e12571c17f3e83fe16c1e6979e3cc96b90

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 FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe
    "C:\Users\Admin\AppData\Local\Temp\9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4056
    • C:\Users\Admin\AppData\Local\Temp\is-Q0ONE.tmp\9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-Q0ONE.tmp\9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp" /SL5="$40208,4768713,54272,C:\Users\Admin\AppData\Local\Temp\9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4156
      • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1132
      • C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        "C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4392

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        _iscrypt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-NLL6S.tmp\_isetup\_iscrypt.dll
        • Size 2KB
        • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
        • MD5 SHA1 SHA512

        9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-Q0ONE.tmp\9b6a3eb67f666120885a27717f6998d6e4175343dbde8c8327a1e5619ed0540c.tmp
        • Size 680KB
        • SHA256 819409a928f8dc308b38d03f76e58c448bb3e9c323f77e6b6e0a17553f0a8916
        • MD5 SHA1 SHA512 SSDEEP

        winypux32.exe

        • Path C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
        • Size 2.8MB
        • SHA256 7e21c8fd9ec92c3259d7f552a4e9a9d93334cb59500990c5fd51f62d846d8788
        • MD5 SHA1 SHA512 SSDEEP

        memory/1132-59-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/1132-60-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/1132-65-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/1132-63-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4056-70-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/4056-3-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/4056-1-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/4156-7-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/4156-71-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/4392-76-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-91-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-72-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-75-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-67-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-79-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-82-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-85-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-88-0x00000000009F0000-0x0000000000A92000-memory.dmp

        memory/4392-69-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-96-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-99-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-102-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-105-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-108-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-111-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-112-0x00000000009F0000-0x0000000000A92000-memory.dmp

        memory/4392-113-0x00000000009F0000-0x0000000000A92000-memory.dmp

        memory/4392-117-0x0000000000400000-0x00000000006C8000-memory.dmp

        memory/4392-120-0x0000000000400000-0x00000000006C8000-memory.dmp