Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    03/06/2024, 11:28

General

  • Target
    c01db6358636d1f11a7d822718bbf7e172117f2880a6f59abf69e647cb85c0cb.exe
  • Size 6.0MB
  • Sample240603-nk2deaeb27
  • SHA256 c01db6358636d1f11a7d822718bbf7e172117f2880a6f59abf69e647cb85c0cb
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

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\c01db6358636d1f11a7d822718bbf7e172117f2880a6f59abf69e647cb85c0cb.exe
    "C:\Users\Admin\AppData\Local\Temp\c01db6358636d1f11a7d822718bbf7e172117f2880a6f59abf69e647cb85c0cb.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Users\Admin\AppData\Local\Temp\is-RNU8L.tmp\c01db6358636d1f11a7d822718bbf7e172117f2880a6f59abf69e647cb85c0cb.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-RNU8L.tmp\c01db6358636d1f11a7d822718bbf7e172117f2880a6f59abf69e647cb85c0cb.tmp" /SL5="$6020E,6054587,54272,C:\Users\Admin\AppData\Local\Temp\c01db6358636d1f11a7d822718bbf7e172117f2880a6f59abf69e647cb85c0cb.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4056
      • C:\Users\Admin\AppData\Local\Mixability\mixability32.exe
        "C:\Users\Admin\AppData\Local\Mixability\mixability32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1180
      • C:\Users\Admin\AppData\Local\Mixability\mixability32.exe
        "C:\Users\Admin\AppData\Local\Mixability\mixability32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:8

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        mixability32.exe

        • Path C:\Users\Admin\AppData\Local\Mixability\mixability32.exe
        • Size 4.7MB
        • SHA256 55103b635a35a2ade9c941bb26ce197804c0fbd64ad66b49f6be1ae7b7897036
        • MD5 SHA1 SHA512 SSDEEP

        _iscrypt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-9AMK2.tmp\_isetup\_iscrypt.dll
        • Size 2KB
        • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
        • MD5 SHA1 SHA512

        c01db6358636d1f11a7d822718bbf7e172117f2880a6f59abf69e647cb85c0cb.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-RNU8L.tmp\c01db6358636d1f11a7d822718bbf7e172117f2880a6f59abf69e647cb85c0cb.tmp
        • Size 680KB
        • SHA256 9fc24bf756a8d5842dcae80197ceeceabd2161c17b70f26bca89a86dbdeaa64b
        • MD5 SHA1 SHA512 SSDEEP

        memory/8-96-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-80-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-117-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-114-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-110-0x0000000000BA0000-0x0000000000C42000-memory.dmp

        memory/8-109-0x0000000000BA0000-0x0000000000C42000-memory.dmp

        memory/8-108-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-68-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-105-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-102-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-71-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-74-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-77-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-99-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-83-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-86-0x0000000000BA0000-0x0000000000C42000-memory.dmp

        memory/8-90-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/8-93-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/756-0-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/756-69-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/756-3-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/1180-65-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/1180-61-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/1180-63-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/1180-59-0x0000000000400000-0x00000000008AE000-memory.dmp

        memory/4056-13-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/4056-70-0x0000000000400000-0x00000000004BA000-memory.dmp