Overview

overview

6

Static

static

1

WIN_STB-5....2).exe

windows10-2004-x64

6

WIN_STB-5....2).exe

windows11-ltsc_2024-x64

6

Resubmissions

30/09/2026, 04:24

260930-e1gjhasw8m6

30/09/2026, 03:50

260930-eedkqazzht6

Analysis

  • max time kernel
    899s
  • max time network
    550s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 04:24

Sharing

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General

  • Target
    WIN_STB-5.4.442.0.exe_PROD (2).exe
  • Size 93.8MB
  • Sample260930-e1gjhasw8m
  • SHA256 b7847398eaea7ac1be2a9c234dfd6ecf07543c76813668a8fac77957605c3cd0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
adwaredefense_evasiondiscoverypersistenceransomwarespyware

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.

    persistence
  • Enumerates connected drives 3 TTPs 51 IoCs

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

  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Drops file in Program Files directory 29 IoCs
  • Drops file in Windows directory 18 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

    discovery
  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 55 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 7 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.

    persistence
  • Uses Volume Shadow Copy WMI provider

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

    ransomware
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\WIN_STB-5.4.442.0.exe_PROD (2).exe
    "C:\Users\Admin\AppData\Local\Temp\WIN_STB-5.4.442.0.exe_PROD (2).exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3156
    • C:\Users\Admin\AppData\Local\Temp\{9A081F28-8189-4512-ACD1-EE60B18CB515}\WIN_STB-5.4.442.0.exe_PROD (2).exe
      "C:\Users\Admin\AppData\Local\Temp\{9A081F28-8189-4512-ACD1-EE60B18CB515}\WIN_STB-5.4.442.0.exe_PROD (2).exe" /q"C:\Users\Admin\AppData\Local\Temp\WIN_STB-5.4.442.0.exe_PROD (2).exe" /tempdisk1folder"C:\Users\Admin\AppData\Local\Temp\{9A081F28-8189-4512-ACD1-EE60B18CB515}" /IS_temp
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1020
      • C:\Windows\SysWOW64\MSIEXEC.EXE
        "C:\Windows\system32\MSIEXEC.EXE" /i "C:\Users\Admin\AppData\Local\Temp\{9A081F28-8189-4512-ACD1-EE60B18CB515}\NWEA Secure Testing Browser.msi" /l*v C:\Users\Admin\AppData\Local\Temp\LockdownBrowser.log SETUPEXEDIR="C:\Users\Admin\AppData\Local\Temp" SETUPEXENAME="WIN_STB-5.4.442.0.exe_PROD (2).exe"
        3⤵
        • Enumerates connected drives
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        PID:2560
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c rmdir /s /q "C:\Users\Admin\AppData\Local\Temp\{9A081F28-8189-4512-ACD1-EE60B18CB515}"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5364
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4104
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 67BEAD875918D3C7D2C708B01A590449 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4824
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4412
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B6AD4EED17E9F5527A185018B24DBB94
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1036
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3436
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:5448
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:5604
        • 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 FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          PID:3564
      • 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:3240
      • 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:5020
      • C:\Windows\System32\SecurityHealthHost.exe
        \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
        1⤵
          PID:1740

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              e594ee2.rbs
              • Path C:\Config.Msi\e594ee2.rbs
              • Size 15KB
              • SHA256 4c21f5ec57cba3f905c7b7c26be979a5b270e8a68986a09b0eb92eb13d0e198f
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              NWEA Secure Testing Browser.exe
              • Path C:\Program Files (x86)\NWEA\NWEA Secure Testing Browser\NWEA Secure Testing Browser.exe
              • Size 309KB
              • SHA256 3baf19269b2c5bbe514a55dc2b030924365bc7103e545f00e29b095ca4877acd
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              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
              Submit Download

              LockdownBrowser.log
              • Path C:\Users\Admin\AppData\Local\Temp\LockdownBrowser.log
              • Size 89KB
              • SHA256 a9bb768e1eac0fec7cfe60aec44206c795a91ec7118074983d5b4ca24a3e183d
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              MSIDF9D.tmp
              • Path C:\Users\Admin\AppData\Local\Temp\MSIDF9D.tmp
              • Size 166KB
              • SHA256 c30c8a461175ae3240c7a835c9a4946a913a54e55f4b87f42b729c685a40448a
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              0x0409.ini
              • Path C:\Users\Admin\AppData\Local\Temp\{9A081F28-8189-4512-ACD1-EE60B18CB515}\0x0409.ini
              • Size 21KB
              • SHA256 8b76df0ffc9a226b532b60936765b852b89780c6e475c152f7c320e085e43948
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _ISMSIDEL.INI
              • Path C:\Users\Admin\AppData\Local\Temp\{9A081F28-8189-4512-ACD1-EE60B18CB515}\_ISMSIDEL.INI
              • Size 20B
              • SHA256 0a33c5dffabcf31a1f6802026e9e2eef4b285e57fd79d52fdcd98d6502d14b13
              • MD5 SHA1 SHA512
              Submit Download

              _ISMSIDEL.INI
              • Path C:\Users\Admin\AppData\Local\Temp\{9A081F28-8189-4512-ACD1-EE60B18CB515}\_ISMSIDEL.INI
              • Size 692B
              • SHA256 db2b241b4c7053ec26d777eb0014c80186d4e0d716aa07daa46feeb118c3e2f7
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              ~BDA0.tmp
              • Path C:\Users\Admin\AppData\Local\Temp\~BDA0.tmp
              • Size 5KB
              • SHA256 aabd6f7803cc8f65b2f16cf4a20b3d864e41efcb52b1c0222ee24bc104accd2b
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              NWEA Secure Testing Browser.lnk
              • Path C:\Users\Public\Desktop\NWEA Secure Testing Browser.lnk
              • Size 2KB
              • SHA256 d6d29d77961a782f5ade61a0c8809ff07933a0f427fb7cb23ffc4b8b18c0bc53
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              NewShortcut2_D49D4F2A42E745149F646DD045FA6CEE.exe
              • Path C:\Windows\Installer\{ff694045-5446-402f-8128-1462e26a7e6e}\NewShortcut2_D49D4F2A42E745149F646DD045FA6CEE.exe
              • Size 60KB
              • SHA256 07549d4c2306360c9a4146bbb5bf500d2d49e9850e7829f153dadb62e99e5026
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              metadata-2
              • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
              • Size 26.1MB
              • SHA256 edc4205b1b1966df89b0bea180138ef197bd9ba9439686e23b3aaa531bcf94db
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              {faf5dbb3-abd6-4538-87ee-fbd0314891af}_OnDiskSnapshotProp
              • Path \??\Volume{9cfaea72-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{faf5dbb3-abd6-4538-87ee-fbd0314891af}_OnDiskSnapshotProp
              • Size 6KB
              • SHA256 f8e05365f5ff86d95d3c5961f9faed256c21cd9f25c19c4733e6986d57e12172
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              memory/3240-194-0x000001E882A50000-0x000001E882A70000-memory.dmp
              Download

              memory/3240-183-0x000001E8AFD70000-0x000001E8AFE70000-memory.dmp
              Download

              memory/3240-181-0x000001E8AFD70000-0x000001E8AFE70000-memory.dmp
              Download

              memory/3240-196-0x000001E882E90000-0x000001E882F90000-memory.dmp
              Download

              memory/3240-213-0x000001E882C90000-0x000001E882CB0000-memory.dmp
              Download

              memory/3240-227-0x000001E8942D0000-0x000001E8942F0000-memory.dmp
              Download

              memory/3564-366-0x000000000DFC0000-0x000000000E83B000-memory.dmp
              Download

              memory/3564-414-0x000000000DFC0000-0x000000000E83B000-memory.dmp
              Download

              memory/4104-178-0x000002B59E810000-0x000002B59F1B4000-memory.dmp
              Download

              memory/4104-140-0x000002B59E810000-0x000002B59F1B4000-memory.dmp
              Download

              memory/5020-368-0x0000023380890000-0x0000023380B4C000-memory.dmp
              Download

              memory/5020-385-0x0000023380890000-0x0000023380B4C000-memory.dmp
              Download