Resubmissions

26/06/2026, 20:56

260626-zq94aaex8y8

26/06/2026, 20:54

260626-zqcssaex8t8

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    26/06/2026, 20:54

General

  • Target
    setup.exe
  • Size 6.5MB
  • Sample260626-zqcssaex8t
  • SHA256 2fa85273ee49a568252e0e6a77a01e3eaa79acc665cef922c9bfe99ae5f405aa
  • 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
  • Loads dropped DLL 11 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 40 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 43 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\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\setup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3244
    • C:\Users\Admin\AppData\Local\Temp\is-0GQCJ.tmp\setup.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-0GQCJ.tmp\setup.tmp" /SL5="$502EA,6228475,140800,C:\Users\Admin\AppData\Local\Temp\setup.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      PID:4500
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4264
    • 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:4828
  • 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:5068
  • 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:1056

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 599B
        • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
        • MD5 SHA1 SHA512 TLSH

        setup.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-0GQCJ.tmp\setup.tmp
        • Size 1.4MB
        • SHA256 09af8004b85478e1eca09fa4cb5e3081dddcb2f68a353f3ef6849d92be47b449
        • MD5 SHA1 SHA512 SSDEEP TLSH

        BASS.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-7HCV1.tmp\BASS.dll
        • Size 103KB
        • SHA256 df9f56c4da160101567b0526845228ee481ee7d2f98391696fa27fe41f8acf15
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CallbackCtrl.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-7HCV1.tmp\CallbackCtrl.dll
        • Size 4KB
        • SHA256 68f42a7823ed7ee88a5c59020ac52d4bbcadf1036611e96e470d986c8faa172d
        • MD5 SHA1 SHA512 TLSH

        ISDone.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-7HCV1.tmp\ISDone.dll
        • Size 452KB
        • SHA256 bb8a0245dcc5c10a1c7181bad509b65959855009a8105863ef14f2bb5b38ac71
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MusicButton.png

        • Path C:\Users\Admin\AppData\Local\Temp\is-7HCV1.tmp\MusicButton.png
        • Size 1KB
        • SHA256 7f4ad4d912cdabdfbb227387759db81434e20583687737f263d4f247326f0c1a
        • MD5 SHA1 SHA512 TLSH

        botva2.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-7HCV1.tmp\botva2.dll
        • Size 37KB
        • SHA256 450b9b0ba25bf068afbc2b23d252585a19e282939bf38326384ea9112dfd0105
        • MD5 SHA1 SHA512 SSDEEP TLSH

        idp.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-7HCV1.tmp\idp.dll
        • Size 220KB
        • SHA256 f4fc0187491a9cb89e233197ff72c2405b5ec02e8b8ea640ee68d034ddbc44bb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        innocallback.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-7HCV1.tmp\innocallback.dll
        • Size 63KB
        • SHA256 6afa2d104be6efe3d9a2ab96dbb75db31565dad64dd0b791e402ecc25529809f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        wintb.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-7HCV1.tmp\wintb.dll
        • Size 16KB
        • SHA256 1910537aa95684142250ca0c7426a0b5f082e39f6fbdbdba649aecb179541435
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3244-0-0x0000000000400000-0x000000000042D000-memory.dmp

        memory/3244-2-0x000000000041E000-0x000000000041F000-memory.dmp

        memory/3244-71-0x0000000000400000-0x000000000042D000-memory.dmp

        memory/4500-90-0x0000000007150000-0x000000000715F000-memory.dmp

        memory/4500-102-0x0000000003D20000-0x0000000003D97000-memory.dmp

        memory/4500-75-0x000000006B080000-0x000000006B08D000-memory.dmp

        memory/4500-74-0x0000000003D20000-0x0000000003D97000-memory.dmp

        memory/4500-73-0x0000000003D00000-0x0000000003D15000-memory.dmp

        memory/4500-76-0x0000000000400000-0x0000000000579000-memory.dmp

        memory/4500-81-0x0000000011000000-0x000000001104C000-memory.dmp

        memory/4500-53-0x0000000000400000-0x0000000000579000-memory.dmp

        memory/4500-30-0x0000000003D20000-0x0000000003D97000-memory.dmp

        memory/4500-23-0x0000000003D00000-0x0000000003D15000-memory.dmp

        memory/4500-9-0x0000000000400000-0x0000000000579000-memory.dmp

        memory/4500-97-0x0000000000400000-0x0000000000579000-memory.dmp

        memory/4500-99-0x0000000011000000-0x000000001104C000-memory.dmp

        memory/4500-101-0x0000000003D00000-0x0000000003D15000-memory.dmp

        memory/4500-105-0x0000000007150000-0x000000000715F000-memory.dmp

        memory/4500-72-0x0000000000400000-0x0000000000579000-memory.dmp

        memory/4500-100-0x0000000000400000-0x0000000000579000-memory.dmp

        memory/4500-107-0x0000000000400000-0x0000000000579000-memory.dmp

        memory/4500-114-0x0000000000400000-0x0000000000579000-memory.dmp

        memory/4500-119-0x0000000007150000-0x000000000715F000-memory.dmp

        memory/4500-115-0x0000000003D00000-0x0000000003D15000-memory.dmp

        memory/4500-121-0x0000000000400000-0x0000000000579000-memory.dmp

        memory/4500-8-0x0000000000400000-0x0000000000579000-memory.dmp

        memory/4500-313-0x0000000000400000-0x0000000000579000-memory.dmp

        memory/4500-299-0x0000000000400000-0x0000000000579000-memory.dmp

        memory/5068-130-0x000001B764A60000-0x000001B764B60000-memory.dmp

        memory/5068-128-0x000001B764A60000-0x000001B764B60000-memory.dmp

        memory/5068-169-0x000001BF79440000-0x000001BF79460000-memory.dmp

        memory/5068-129-0x000001B764A60000-0x000001B764B60000-memory.dmp

        memory/5068-157-0x000001BF79100000-0x000001BF79200000-memory.dmp

        memory/5068-156-0x000001BF68CA0000-0x000001BF68CC0000-memory.dmp

        memory/5068-159-0x000001BF68F00000-0x000001BF68F20000-memory.dmp