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
    480s
  • 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, 03:50

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General

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

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 47 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 5 IoCs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 36 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • 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:5736
    • C:\Users\Admin\AppData\Local\Temp\{A494ACAA-EA8C-4D9C-A95E-9B3FDAE57E43}\WIN_STB-5.4.442.0.exe_PROD (2).exe
      "C:\Users\Admin\AppData\Local\Temp\{A494ACAA-EA8C-4D9C-A95E-9B3FDAE57E43}\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\{A494ACAA-EA8C-4D9C-A95E-9B3FDAE57E43}" /IS_temp
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1332
      • C:\Windows\SysWOW64\MSIEXEC.EXE
        "C:\Windows\system32\MSIEXEC.EXE" /i "C:\Users\Admin\AppData\Local\Temp\{A494ACAA-EA8C-4D9C-A95E-9B3FDAE57E43}\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:1132
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c rmdir /s /q "C:\Users\Admin\AppData\Local\Temp\{A494ACAA-EA8C-4D9C-A95E-9B3FDAE57E43}"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4764
  • 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:4900
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DF9C73DFBD0E14602A1F34A5677DC9B4 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:5192
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1324
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 3D761A8109074D66534E410A5AE25B37
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1252
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1884
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:2640
      • C:\Windows\System32\SecurityHealthHost.exe
        \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
        1⤵
          PID:4156

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              e59ab1c.rbs
              • Path C:\Config.Msi\e59ab1c.rbs
              • Size 15KB
              • SHA256 8f283048576addd3133c4e0a3ca475d3dbf2d3574f34dc80528af94dd16e8e89
              • 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

              LockdownBrowser.log
              • Path C:\Users\Admin\AppData\Local\Temp\LockdownBrowser.log
              • Size 89KB
              • SHA256 6fea41646215c62bb949ce934b7f023a308cfe9c122707654dad84623ff2deb9
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              MSI3677.tmp
              • Path C:\Users\Admin\AppData\Local\Temp\MSI3677.tmp
              • Size 166KB
              • SHA256 c30c8a461175ae3240c7a835c9a4946a913a54e55f4b87f42b729c685a40448a
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              0x0409.ini
              • Path C:\Users\Admin\AppData\Local\Temp\{A494ACAA-EA8C-4D9C-A95E-9B3FDAE57E43}\0x0409.ini
              • Size 21KB
              • SHA256 8b76df0ffc9a226b532b60936765b852b89780c6e475c152f7c320e085e43948
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              _ISMSIDEL.INI
              • Path C:\Users\Admin\AppData\Local\Temp\{A494ACAA-EA8C-4D9C-A95E-9B3FDAE57E43}\_ISMSIDEL.INI
              • Size 772B
              • SHA256 53a93b3e8690a6aceba740850d91ddfa19ee0338c381f635bc01e6e4738c7dc0
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              _ISMSIDEL.INI
              • Path C:\Users\Admin\AppData\Local\Temp\{A494ACAA-EA8C-4D9C-A95E-9B3FDAE57E43}\_ISMSIDEL.INI
              • Size 20B
              • SHA256 0a33c5dffabcf31a1f6802026e9e2eef4b285e57fd79d52fdcd98d6502d14b13
              • MD5 SHA1 SHA512
              Submit Download

              _ISMSIDEL.INI
              • Path C:\Users\Admin\AppData\Local\Temp\{A494ACAA-EA8C-4D9C-A95E-9B3FDAE57E43}\_ISMSIDEL.INI
              • Size 692B
              • SHA256 01ee4ccab456a218fff5e85fadf23d0d4de8e42d3c3b48fbbb2c2c9812c7bf32
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              ~148A.tmp
              • Path C:\Users\Admin\AppData\Local\Temp\~148A.tmp
              • Size 5KB
              • SHA256 aabd6f7803cc8f65b2f16cf4a20b3d864e41efcb52b1c0222ee24bc104accd2b
              • MD5 SHA1 SHA512 SSDEEP 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 8dd2e7233ae9bd1a77e1251e20dd567c635b35751231f04c8960f44badf0614c
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              {621aacb4-e3f6-42c9-b191-6f619528c502}_OnDiskSnapshotProp
              • Path \??\Volume{804c0bee-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{621aacb4-e3f6-42c9-b191-6f619528c502}_OnDiskSnapshotProp
              • Size 6KB
              • SHA256 8d698ac931c1e46424f9f0f29b07e542d4ddcb27aa95c1e7ab0606c273f4de92
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              memory/4900-138-0x0000016B88B50000-0x0000016B894F4000-memory.dmp
              Download

              memory/4900-178-0x0000016B88B50000-0x0000016B894F4000-memory.dmp
              Download