Resubmissions

21/06/2026, 11:13

260621-nbdkzscy7p7

19/06/2026, 14:17

260619-rl2mcagx2k9

Analysis

  • max time kernel
    150s
  • max time network
    159s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/06/2026, 14:17

General

  • Target
    LegacyLauncher.exe
  • Size 111.9MB
  • Sample260619-rl2mcagx2k
  • SHA256 a092da5c6df6c6be4341846f43425006ee0da2ce96953cf98a4b947457824ac4
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Inno Setup is an open-source installation builder for Windows applications. 2 IoCs

    Inno Setup installer

  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 45 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe
    "C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Users\Admin\AppData\Local\Temp\is-Z3HDC07AWW.tmp\LegacyLauncher.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-Z3HDC07AWW.tmp\LegacyLauncher.tmp" /SL5="$6004E,115006833,1320448,C:\Users\Admin\AppData\Local\Temp\LegacyLauncher.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4884
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4184
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:972
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1792
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:700
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:1092

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          prep_Activatable Class_Hermes_perf.cache

          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
          • Size 607B
          • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
          • MD5 SHA1 SHA512 TLSH

          prep_Activatable Class_Hermes_perf.cache

          • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
          • Size 599B
          • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
          • MD5 SHA1 SHA512 TLSH

          LegacyLauncher.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\is-Z3HDC07AWW.tmp\LegacyLauncher.tmp
          • Size 4.6MB
          • SHA256 7cc60f1f36f6a1ed8218f60764a4c5ee83c76a92e80283da899fe265403c871a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1624-1-0x0000000000820000-0x0000000000971000-memory.dmp

          memory/1624-0-0x00000000008DF000-0x00000000008E0000-memory.dmp

          memory/1624-11-0x0000000000820000-0x0000000000971000-memory.dmp

          memory/1792-42-0x0000028481C90000-0x0000028481CB0000-memory.dmp

          memory/1792-36-0x00000284801E0000-0x00000284802E0000-memory.dmp

          memory/1792-48-0x0000028481E10000-0x0000028481E30000-memory.dmp

          memory/1792-43-0x0000028481E90000-0x0000028481F90000-memory.dmp

          memory/1792-58-0x0000028484210000-0x0000028484230000-memory.dmp

          memory/4884-14-0x0000000000190000-0x0000000000635000-memory.dmp

          memory/4884-12-0x0000000000190000-0x0000000000635000-memory.dmp

          memory/4884-9-0x0000000000190000-0x0000000000635000-memory.dmp

          memory/4884-8-0x0000000000554000-0x0000000000556000-memory.dmp

          memory/4884-202-0x0000000000190000-0x0000000000635000-memory.dmp