Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/10/2026, 07:58

General

  • Target
    2026-10-01_9b0d4e63a343e1c58617534631780120_cobalt-strike_cryptbot_elex_hijackloader_icedid_njrat_vidar.exe
  • Size 6.0MB
  • Sample261002-jt1e9adb39
  • SHA256 855dd8b6f397f03a72e71520622b475810942c0ff8582ef30dca8add9c009886
  • 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 18 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.

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 8 IoCs
  • Modifies system executable filetype association 2 TTPs 4 IoCs
  • Themida packer 18 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 6 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 6 IoCs
  • Drops file in Program Files directory 60 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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.

  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-01_9b0d4e63a343e1c58617534631780120_cobalt-strike_cryptbot_elex_hijackloader_icedid_njrat_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-01_9b0d4e63a343e1c58617534631780120_cobalt-strike_cryptbot_elex_hijackloader_icedid_njrat_vidar.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:3320
    • \??\c:\users\admin\appdata\local\temp\2026-10-01_9b0d4e63a343e1c58617534631780120_cobalt-strike_cryptbot_elex_hijackloader_icedid_njrat_vidar.exe 
      c:\users\admin\appdata\local\temp\2026-10-01_9b0d4e63a343e1c58617534631780120_cobalt-strike_cryptbot_elex_hijackloader_icedid_njrat_vidar.exe 
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5196
      • C:\Program Files\WinRAR\uninstall.exe
        "C:\Program Files\WinRAR\uninstall.exe" /setup
        3⤵
        • Executes dropped EXE
        • Modifies system executable filetype association
        • Drops file in Program Files directory
        • Reads the TCP/IP host and domain name from the registry
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:5648
        • C:\Program Files\WinRAR\RarExtInstaller.exe
          "C:\Program Files\WinRAR\RarExtInstaller.exe" -install
          4⤵
          • Executes dropped EXE
          • Reads the TCP/IP host and domain name from the registry
          PID:2968
    • 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:4684
      • \??\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:4160
        • \??\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:916
          • \??\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:5524
            • \??\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:4636

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        Rar.txt

        • Path C:\Program Files\WinRAR\Rar.txt
        • Size 109KB
        • SHA256 05addd3d2be44b79266e6758239191147705e2918809cc21d821fb11a14bee2f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RarExtInstaller.exe

        • Path C:\Program Files\WinRAR\RarExtInstaller.exe
        • Size 180KB
        • SHA256 67bb62d802a0d7a8734e671363a1fea3ee1930a62fc83c3a2783729b34075488
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RarExtPackage.msix

        • Path C:\Program Files\WinRAR\RarExtPackage.msix
        • Size 22KB
        • SHA256 b352912becb363f4482fc900253c62e12286ea433feabe64be05de0149893bd8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Uninstall.exe

        • Path C:\Program Files\WinRAR\Uninstall.exe
        • Size 437KB
        • SHA256 87e90a9cfc39d12b54cea430e026433003d68c33d7af0f8662c72fac6cf45e00
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WhatsNew.txt

        • Path C:\Program Files\WinRAR\WhatsNew.txt
        • Size 105KB
        • SHA256 aefcdffa9a231ea50b75785bd9a96a7bc209a33b1bddc26c643415ed6439483a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WinRAR.chm

        • Path C:\Program Files\WinRAR\WinRAR.chm
        • Size 317KB
        • SHA256 6958bd49bcb61617eb8bc1c222cc65319c281357f8bb83d1526c576cb137f08a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WinRAR.exe

        • Path C:\Program Files\WinRAR\WinRAR.exe
        • Size 2.5MB
        • SHA256 9e08abde05f3eda5fadb970c03ce647ea4f1514132c9df30d58fc029195685a8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        2026-10-01_9b0d4e63a343e1c58617534631780120_cobalt-strike_cryptbot_elex_hijackloader_icedid_njrat_vidar.exe 

        • Path C:\Users\Admin\AppData\Local\Temp\2026-10-01_9b0d4e63a343e1c58617534631780120_cobalt-strike_cryptbot_elex_hijackloader_icedid_njrat_vidar.exe 
        • Size 3.4MB
        • SHA256 3d019e60c0def88892ad89023d2e15133fc940fef140faeeaa414ad38f8ef3bf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        explorer.exe

        • Path C:\Windows\Resources\Themes\explorer.exe
        • Size 2.6MB
        • SHA256 fbfd9e12be0745abf9e65af4f9b36c08780548175287f268165856ed3490a997
        • MD5 SHA1 SHA512 SSDEEP TLSH

        icsys.icn.exe

        • Path C:\Windows\Resources\Themes\icsys.icn.exe
        • Size 2.6MB
        • SHA256 1502b42eb74ba911e3a6904072ea904315e1c990c5366d1d3db4daf6f87acdcd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        spoolsv.exe

        • Path C:\Windows\Resources\spoolsv.exe
        • Size 2.6MB
        • SHA256 3527c92c6b70b701e6568b05d8a61d05e01b44aa81717b9ebdc1a6809fa2037e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        svchost.exe

        • Path C:\Windows\Resources\svchost.exe
        • Size 2.6MB
        • SHA256 c8854f37bd1391d59c3937dc15221e85c09cfb6fa00779e7b9278a7b07b77772
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/916-34-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/916-55-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/3320-56-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/3320-0-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/4160-173-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/4160-120-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/4160-24-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/4636-49-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/4636-53-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/4684-57-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/5524-44-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/5524-123-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/5524-171-0x0000000000400000-0x0000000000A13000-memory.dmp

        memory/5524-182-0x0000000000400000-0x0000000000A13000-memory.dmp