Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/08/2026, 13:08

General

  • Target
    2026-08-23_4217beefcb62cb06f5f0bf8a53984bf5_elex_stealc_stop_tofsee.exe
  • Size 3.5MB
  • Sample260824-qdfjgade65
  • SHA256 82853829f527c5af45eb7da1a1f347373f29d2529b473e2bc93cf58c368fbe14
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies visibility of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Detects executables packed with Themida 21 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 6 IoCs
  • Checks BIOS information in registry 2 TTPs 12 IoCs

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

  • Executes dropped EXE 9 IoCs
  • Themida packer 21 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 6 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-23_4217beefcb62cb06f5f0bf8a53984bf5_elex_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-23_4217beefcb62cb06f5f0bf8a53984bf5_elex_stealc_stop_tofsee.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5732
    • \??\c:\users\admin\appdata\local\temp\2026-08-23_4217beefcb62cb06f5f0bf8a53984bf5_elex_stealc_stop_tofsee.exe 
      c:\users\admin\appdata\local\temp\2026-08-23_4217beefcb62cb06f5f0bf8a53984bf5_elex_stealc_stop_tofsee.exe 
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5700
      • C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\BlueStacksInstaller.exe
        "C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\BlueStacksInstaller.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1276
        • C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\HD-CheckCpu.exe
          "C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\HD-CheckCpu.exe" --cmd checkHypervEnabled
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:1060
        • C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\HD-CheckCpu.exe
          "C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\HD-CheckCpu.exe" --cmd checkSSE4
          4⤵
          • Executes dropped EXE
          PID:4516
    • C:\Windows\Resources\Themes\icsys.icn.exe
      C:\Windows\Resources\Themes\icsys.icn.exe
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4860
      • \??\c:\windows\resources\themes\explorer.exe
        c:\windows\resources\themes\explorer.exe
        3⤵
        • Modifies visibility of hidden/system files in Explorer
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2704
        • \??\c:\windows\resources\spoolsv.exe
          c:\windows\resources\spoolsv.exe SE
          4⤵
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Checks whether UAC is enabled
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1160
          • \??\c:\windows\resources\svchost.exe
            c:\windows\resources\svchost.exe
            5⤵
            • Modifies visibility of hidden/system files in Explorer
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Adds Run key to start application
            • Checks whether UAC is enabled
            • Drops file in System32 directory
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:5180
            • \??\c:\windows\resources\spoolsv.exe
              c:\windows\resources\spoolsv.exe PR
              6⤵
              • Identifies VirtualBox via ACPI registry values (likely anti-VM)
              • Checks BIOS information in registry
              • Executes dropped EXE
              • Checks whether UAC is enabled
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              PID:3936

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        2026-08-23_4217beefcb62cb06f5f0bf8a53984bf5_elex_stealc_stop_tofsee.exe 

        • Path C:\Users\Admin\AppData\Local\Temp\2026-08-23_4217beefcb62cb06f5f0bf8a53984bf5_elex_stealc_stop_tofsee.exe 
        • Size 927KB
        • SHA256 801895b346e936c1a7958135c285bab8d337e2d908e7d7b2fca4e3c39a786ed7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        backicon.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\backicon.png
        • Size 15KB
        • SHA256 fa64884054171515e97b78aaa1aad1ec5baa9d1daf9c682e0b3fb4a41a9cb1c1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        change_hover.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\change_hover.png
        • Size 310B
        • SHA256 8e5847487da148ebb3ea029cc92165afd215cdc08f7122271e13eb37f94e6dc1
        • MD5 SHA1 SHA512 TLSH

        close_red.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\close_red.png
        • Size 15KB
        • SHA256 d0b6d143642d356b40c47459a996131a344cade6bb86158f1b74693426b09bfb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        custom.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\custom.png
        • Size 17KB
        • SHA256 fbece8bb5f4dfa55dcfbf41151b10608af807b9477e99acf0940954a11e68f7b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        discord_icon.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\discord_icon.png
        • Size 564B
        • SHA256 c29b35c6be50f9e34f1120bd346ce01884f0c7ba1121c866d95b24e46e420b0c
        • MD5 SHA1 SHA512 TLSH

        folder.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\folder.png
        • Size 298B
        • SHA256 7ffa875fab1be82e384022a27f3e627ab75131eb168be949cc83c03b6e291bbf
        • MD5 SHA1 SHA512 TLSH

        help_icon.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\help_icon.png
        • Size 1KB
        • SHA256 97c7450d55ecda9017d0a9eed0049b8176e1828f3525aaf5660985ba214010cc
        • MD5 SHA1 SHA512 TLSH

        info_icon.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\info_icon.png
        • Size 929B
        • SHA256 ee91e51aaa8356318cc75d60476d9422bf84be7d8a25e1b884aa16c3198dc764
        • MD5 SHA1 SHA512 TLSH

        installer_bg.jpg

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\installer_bg.jpg
        • Size 78KB
        • SHA256 4c7471c986e16de0cd451be27d4b3171e595fe2916b4b3bf7ca52df6ec368904
        • MD5 SHA1 SHA512 SSDEEP TLSH

        installer_logo.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\installer_logo.png
        • Size 9KB
        • SHA256 462b64f2e016d25a2a6a653ba896206129c4ac841d61a6c2fd116009606f7e1c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        installer_minimize.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\installer_minimize.png
        • Size 113B
        • SHA256 a064f417e3c2b8f3121a14bbded268b2cdf635706880b7006f931de31476bbc2
        • MD5 SHA1 SHA512 TLSH

        loader.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\loader.png
        • Size 279B
        • SHA256 076263cc65f9824f4f82eb6beaa594d1df90218a2ee21664cf209181557e04b1
        • MD5 SHA1 SHA512 TLSH

        logo_text.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\logo_text.png
        • Size 4KB
        • SHA256 66df86129129d8aa8dd3ba014eb3b3c27a36c22e4782f3dbd6a9a4bc1f4a87bc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setpath.png

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Assets\setpath.png
        • Size 15KB
        • SHA256 5bbb2f41f9f3a805986c3c88a639bcc22d90067d4b8de9f1e21e3cf9e5c1766b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        BlueStacksInstaller.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\BlueStacksInstaller.exe
        • Size 642KB
        • SHA256 314db9f6f47a876f02e5cc65119b68a64384c5c88a3539e4e6ba11a15a11b2dd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        BlueStacksInstaller.exe.config

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\BlueStacksInstaller.exe.config
        • Size 324B
        • SHA256 d6d316584b63bb0d670a42f88b8f84e0de0db4275f1a342084dc383ebeb278eb
        • MD5 SHA1 SHA512 TLSH

        HD-CheckCpu.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\HD-CheckCpu.exe
        • Size 200KB
        • SHA256 2e14887f3432b4a313442247fc669f891dbdad7ef1a2d371466a2afa88074a4c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        JSON.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\JSON.dll
        • Size 411KB
        • SHA256 d2c8d26f95f55431e632c8581154db7c19547b656380e051194a9d2583dd2156
        • MD5 SHA1 SHA512 SSDEEP TLSH

        i18n.en-US.txt

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\Locales\i18n.en-US.txt
        • Size 21KB
        • SHA256 945cbd36495c301dcf1cad837a4147479077974bce2790a3cb3961c9c71f22e2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ThemeFile

        • Path C:\Users\Admin\AppData\Local\Temp\7zS4463AE69\ThemeFile
        • Size 80KB
        • SHA256 de1a2e6b560e036da5ea6b042e29e81a5bfcf67dde89670c332fc5199e811ba6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        installer_bg_1.jpg

        • Path C:\Users\Admin\AppData\Local\Temp\Assets\installer_bg_1.jpg
        • Size 30KB
        • SHA256 873030e34515538dac3efb98edec519596439fa05b7aad37f6137ca954ba41a6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        explorer.exe

        • Path C:\Windows\Resources\Themes\explorer.exe
        • Size 2.6MB
        • SHA256 95c0bb180042ebed7c435a6fea6754619e4409c6de24c7c3802f13bda876e99b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        icsys.icn.exe

        • Path C:\Windows\Resources\Themes\icsys.icn.exe
        • Size 2.6MB
        • SHA256 b272e0f59830405e82cfc019143b257346ede4e138c16f637a4aebcd64f80567
        • MD5 SHA1 SHA512 SSDEEP TLSH

        spoolsv.exe

        • Path C:\Windows\Resources\spoolsv.exe
        • Size 2.6MB
        • SHA256 ae630c03a28386d5047d5b3e6a0dbfbbf9986c2743580da3dfba2d03b2c5cd59
        • MD5 SHA1 SHA512 SSDEEP TLSH

        svchost.exe

        • Path C:\Windows\Resources\svchost.exe
        • Size 2.6MB
        • SHA256 9691c1e93a750cf580c7feecf87228d81d000dbff11f98f99f17df6d9bcd70cb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1160-182-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/1160-206-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/1276-153-0x0000000000830000-0x00000000008D4000-memory.dmp

        memory/1276-155-0x000000001B590000-0x000000001B5F8000-memory.dmp

        memory/1276-184-0x000000001FEB0000-0x000000001FEEE000-memory.dmp

        memory/1276-224-0x0000000001200000-0x0000000001208000-memory.dmp

        memory/1276-170-0x000000001CA10000-0x000000001CF38000-memory.dmp

        memory/1276-185-0x000000001CA00000-0x000000001CA0E000-memory.dmp

        memory/2704-256-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/2704-164-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/2704-211-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/2704-263-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/2704-239-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/2704-280-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/3936-205-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/3936-200-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/4860-208-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/5180-237-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/5180-236-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/5180-195-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/5732-207-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/5732-0-0x0000000000400000-0x0000000000A16000-memory.dmp

        memory/5732-209-0x0000000000400000-0x0000000000A16000-memory.dmp