Analysis

  • user interaction
    yes
  • max time kernel
    1800s
  • max time network
    627s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 04:45

General

  • Target
    MeowNetLauncher-win-Setup.exe
  • Size 12.6MB
  • Sample261102-fdp3sshs4n
  • SHA256 ec35ea6dabcfcab838d17879b631c162f800c34eb3fc57b9cefad040ea52fb69
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Themida packer 8 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 7 IoCs
  • Direct Volume Access: Opens a physical disk for reading 1 TTPs 16 IoCs

    Opens a raw handle to a physical disk, which bypasses file system access controls and is used for disk inspection, anti-VM checks and privilege checks.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MeowNetLauncher-win-Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\MeowNetLauncher-win-Setup.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5620
    • C:\Users\Admin\AppData\Local\MeowNetLauncher\current\MeowNetLauncher.exe
      "C:\Users\Admin\AppData\Local\MeowNetLauncher\current\MeowNetLauncher.exe" --veloapp-install 1.6.3
      2⤵
      • Executes dropped EXE
      PID:4460
    • C:\Users\Admin\AppData\Local\MeowNetLauncher\current\MeowNetLauncher.exe
      "C:\Users\Admin\AppData\Local\MeowNetLauncher\current\MeowNetLauncher.exe"
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3336
      • C:\Windows\system32\tar.exe
        "C:\Windows\system32\tar.exe" -xf "F:\MeowNet\MeowNet.update.zip" -C "F:\MeowNet\.update-staging"
        3⤵
          PID:5824
        • C:\Windows\system32\tar.exe
          "C:\Windows\system32\tar.exe" -xf "F:\MeowNet\MeowNet.data.zip" -C "F:\MeowNet\.data-staging"
          3⤵
            PID:3236
          • F:\MeowNet\RecRoom.exe
            "F:\MeowNet\RecRoom.exe" +forcemode:vr
            3⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Loads dropped DLL
            • Checks whether UAC is enabled
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Direct Volume Access: Opens a physical disk for reading
            • Reads the TCP/IP host and domain name from the registry
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:5332
            • F:\MeowNet\UnityCrashHandler64.exe
              "F:\MeowNet\UnityCrashHandler64.exe" --attach 5332 2522053349376
              4⤵
              • Executes dropped EXE
              • Suspicious use of WriteProcessMemory
              PID:4948
              • F:\MeowNet\UnityCrashHandler64.exe
                "F:\MeowNet\UnityCrashHandler64.exe" "5332" "2522053349376"
                5⤵
                • Executes dropped EXE
                PID:1956
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k GPSvcGroup
        1⤵
          PID:3944
        • C:\Windows\System32\SecurityHealthHost.exe
          \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
          1⤵
            PID:5616
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k GPSvcGroup
            1⤵
              PID:904

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  Update.exe

                  • Path C:\Users\Admin\AppData\Local\MeowNetLauncher\Update.exe
                  • Size 3.8MB
                  • SHA256 d793d3156a062e5b1afecc8846eb4e1d4a69c8ee7ab9f92b1868c28ad1319bff
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  MeowNetLauncher.exe

                  • Path C:\Users\Admin\AppData\Local\MeowNetLauncher\current\MeowNetLauncher.exe
                  • Size 5.1MB
                  • SHA256 b35468226a52adbb4139878d04f9fc8271026836c51c9cd7468b3414ad128198
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  sq.version

                  • Path C:\Users\Admin\AppData\Local\MeowNetLauncher\current\sq.version
                  • Size 515B
                  • SHA256 5bbeef2c57d63d59757806862e4f07f104d8096012530699b08e7973af3d045c
                  • MD5 SHA1 SHA512 TLSH

                  MeowNetLauncher-1.6.3-full.nupkg

                  • Path C:\Users\Admin\AppData\Local\MeowNetLauncher\packages\MeowNetLauncher-1.6.3-full.nupkg
                  • Size 5.4MB
                  • SHA256 d4c90fc283b66015c2e2d369196df8ff47fce94eece1c46aa7fe9b1f80e9cb3e
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  velopack_MeowNetLauncher.log

                  • Path C:\Users\Admin\AppData\Local\velopack\velopack_MeowNetLauncher.log
                  • Size 1KB
                  • SHA256 34c00fe9835ade1a2d8865fbeb3f2c8c6671bb5741d950df24d6abc6f33ebd5f
                  • MD5 SHA1 SHA512 TLSH

                  sharedassets96.assets.resS

                  • Path F:\MeowNet\.data-staging\RecRoom_Data\sharedassets96.assets.resS
                  • Size 1.5MB
                  • SHA256 6ab470d71d404f6d4392e2b93a746ce0340d9f008da905a30b741dd4c4690e11
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  KittyPC.dll

                  • Path F:\MeowNet\.update-staging\KittyPC.dll
                  • Size 20.6MB
                  • SHA256 44a230f61844d70ce444b3c1f18280746335eb3716e3d92da4629f0546b00e3d
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  MEOWNET

                  • Path F:\MeowNet\.update-staging\MEOWNET
                  • Size 39B
                  • SHA256 31987190d1efd9725bf4b06d22ff3184bf8a36a95a15edf75fe4d5fcde0364bc
                  • MD5 SHA1 SHA512

                  NOTICE.txt

                  • Path F:\MeowNet\.update-staging\NOTICE.txt
                  • Size 17KB
                  • SHA256 90cc7fce349de5c4061db956cf5f9fa7cd18d43ded04c49616e299bf3b3047cc
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  NineLives.dll

                  • Path F:\MeowNet\.update-staging\NineLives.dll
                  • Size 12.9MB
                  • SHA256 6863de572279a2c1c13be9c9281ec5c2fae78791f5a4d1f618aeb50c5a599322
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  RecRoom.exe

                  • Path F:\MeowNet\.update-staging\RecRoom.exe
                  • Size 638KB
                  • SHA256 ec64a34d8c7a06429b3876882385fc53e02619f30b2f9b4f00c0a2bf69a8ba6e
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  RecRoomLog.bat

                  • Path F:\MeowNet\.update-staging\RecRoomLog.bat
                  • Size 74B
                  • SHA256 aa63362a09187af8c6794fdeed49f10d0133be27487b9a11709420a132f71c0b
                  • MD5 SHA1 SHA512 TLSH

                  Recroom_Release.exe

                  • Path F:\MeowNet\.update-staging\Recroom_Release.exe
                  • Size 1.2MB
                  • SHA256 f12d2e1924584383cfe78de6264bf84d68c4a615c9054f47fa98243b081b5692
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  UnityCrashHandler64.exe

                  • Path F:\MeowNet\.update-staging\UnityCrashHandler64.exe
                  • Size 1.1MB
                  • SHA256 2149096538582113ee2e60cdfae2acd33def8b04d5db303cc5bf4eeaf54831df
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  UnityPlayer.dll

                  • Path F:\MeowNet\.update-staging\UnityPlayer.dll
                  • Size 28.0MB
                  • SHA256 c18fe00cbf13b36be72ed604de11e210173540a3d5b5ec158d61de8cc9946d98
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  baselib.dll

                  • Path F:\MeowNet\.update-staging\baselib.dll
                  • Size 395KB
                  • SHA256 7efbb390a85fc6846350ef0d3df807a11c9dcd62b6045c9ee2fa4b4e17496447
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  installscript.vdf

                  • Path F:\MeowNet\.update-staging\installscript.vdf
                  • Size 725B
                  • SHA256 17d31db50bb2cdc99ec0e9f920eb228ff2abc662052f978594a644098359e54b
                  • MD5 SHA1 SHA512 TLSH

                  last_update.txt

                  • Path F:\MeowNet\.update-staging\last_update.txt
                  • Size 6B
                  • SHA256 f60516fc1dd70fa86a042bcab8fd60bc9f3c56f5727a1de04ab6fc79c2ea5c18
                  • MD5 SHA1 SHA512

                  steam_appid.txt

                  • Path F:\MeowNet\.update-staging\steam_appid.txt
                  • Size 6B
                  • SHA256 b936276a258b3bb51765c52720da6321dbac8d3c8cb4488a9c6c92ccf81c108d
                  • MD5 SHA1 SHA512

                  app.info

                  • Path F:\MeowNet\RecRoom_Data\app.info
                  • Size 24B
                  • SHA256 79c7f5ce36249af95e5db23ef83293ee5959e71f23a59492ef5a9c5da83b26c7
                  • MD5 SHA1 SHA512

                  boot.config

                  • Path F:\MeowNet\RecRoom_Data\boot.config
                  • Size 104B
                  • SHA256 8c047fb0dd8038ed790a073a488c1f91be68a8886f12bb9343af2b9cc9805360
                  • MD5 SHA1 SHA512 TLSH

                  global-metadata.dat

                  • Path F:\MeowNet\RecRoom_Data\il2cpp_data\Metadata\global-metadata.dat
                  • Size 36.9MB
                  • SHA256 9f5ebf98d3be0dea8a6fe6dfb159def75eacc0a4b516dc7c43c2ba558f7d1cea
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  memory/5332-10004-0x0000024C96760000-0x0000024C9998C000-memory.dmp

                  memory/5332-10007-0x0000000180000000-0x0000000181F7F000-memory.dmp

                  memory/5332-9999-0x0000024C96760000-0x0000024C9998C000-memory.dmp

                  memory/5332-10002-0x0000024C96760000-0x0000024C9998C000-memory.dmp

                  memory/5332-10003-0x0000000180000000-0x0000000181F7F000-memory.dmp

                  memory/5332-10001-0x0000024C96760000-0x0000024C9998C000-memory.dmp

                  memory/5332-10005-0x0000000180000000-0x0000000181F7F000-memory.dmp

                  memory/5332-10000-0x0000024C96760000-0x0000024C9998C000-memory.dmp

                  memory/5332-10010-0x0000000180000000-0x0000000181F7F000-memory.dmp

                  memory/5332-10011-0x0000000180000000-0x0000000181F7F000-memory.dmp

                  memory/5332-10012-0x0000000180000000-0x0000000181F7F000-memory.dmp

                  memory/5332-9998-0x0000024C96760000-0x0000024C9998C000-memory.dmp

                  memory/5332-10024-0x0000000180000000-0x0000000181F7F000-memory.dmp

                  memory/5332-10025-0x0000024C96760000-0x0000024C9998C000-memory.dmp