Analysis

  • max time kernel
    301s
  • max time network
    140s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/11/2026, 17:23

General

  • Target
    taskhostw.exe
  • Size 21.0MB
  • Sample261107-vybs8sdv8x
  • SHA256 459963495bf0c71e1d1654f51e004fc0b3b8c919fd8931571f9b94209cc7389d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Executes a file named after a Windows system binary 1 TTPs 1 IoCs

    The file runs from a user directory while carrying the name of an executable that normally only exists in System32.

  • Modifies file permissions 1 TTPs 18 IoCs
  • Themida packer 38 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 1 TTPs 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • AutoIT Executable 36 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Executes a command shell one-liner 1 TTPs 18 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • NTFS ADS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\taskhostw.exe
    "C:\Users\Admin\AppData\Local\Temp\taskhostw.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Drops file in Drivers directory
    • Checks BIOS information in registry
    • Executes a file named after a Windows system binary
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Reads the TCP/IP host and domain name from the registry
    • Checks processor information in registry
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:4128
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\tfkxupgodbpx" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5440
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\tfkxupgodbpx" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:1508
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\dmnxhvzbkpku" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5500
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\dmnxhvzbkpku" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:5756
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\czyuzabpfprl" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:6132
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\czyuzabpfprl" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:1088
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\ztbhbqffszlu" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:2640
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\ztbhbqffszlu" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:2564
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\qhpxndiguijf" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:3180
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\qhpxndiguijf" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:5992
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\jbteoxfgouip" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:2076
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\jbteoxfgouip" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:2800
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\dnbelrbqlcud" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5680
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\dnbelrbqlcud" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:3700
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\yzksdkbakpnl" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:1328
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\yzksdkbakpnl" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:3496
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\vgodrqhybann" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:828
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\vgodrqhybann" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:2160
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\txcxjqisprgo" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:3580
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\txcxjqisprgo" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:264
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\knifdidgrtye" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:124
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\knifdidgrtye" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:4844
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\bfdbhehxpjxd" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5460
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\bfdbhehxpjxd" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:4176
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\oaocofwmfjha" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:4284
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\oaocofwmfjha" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:4084
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\deafrqsiaenk" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:4432
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\deafrqsiaenk" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:2368
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\programdata\nalfdgwigwyg" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:2384
      • C:\Windows\system32\icacls.exe
        icacls "c:\programdata\nalfdgwigwyg" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:4948
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "c:\windows\system32\wsvcz" /deny "*S-1-5-32-544":(OI)(CI)(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5404
      • C:\Windows\system32\icacls.exe
        icacls "c:\windows\system32\wsvcz" /deny "*S-1-5-32-544":(OI)(CI)(F)
        3⤵
        • Modifies file permissions
        PID:5556
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "C:\Program Files\Google\Chrome\updater.exe" /deny "*S-1-5-32-544":(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:4264
      • C:\Windows\system32\icacls.exe
        icacls "C:\Program Files\Google\Chrome\updater.exe" /deny "*S-1-5-32-544":(F)
        3⤵
        • Modifies file permissions
        PID:4696
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c icacls "C:\ProgramData\Google\Chrome\updater.exe" /deny "*S-1-5-32-544":(F)
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:4140
      • C:\Windows\system32\icacls.exe
        icacls "C:\ProgramData\Google\Chrome\updater.exe" /deny "*S-1-5-32-544":(F)
        3⤵
        • Modifies file permissions
        PID:3132

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        bip39.txt

        • Path C:\ProgramData\Setup\bip39.txt
        • Size 14KB
        • SHA256 d2bd2aeb50ac5df60c1eb10afcec2b680d5a8a9f2bbc74a15c45bf3525528334
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4128-35-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-36-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-4-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-5-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-6-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-7-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-8-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-2-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-15-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-37-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-1-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-28-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-29-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-30-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-31-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-32-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-33-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-34-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-3-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-0-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-16-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-38-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-39-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-40-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-41-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-42-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-43-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-44-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-45-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-46-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-47-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-48-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-49-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-50-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-51-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-52-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-53-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp

        memory/4128-54-0x00007FF7F98A0000-0x00007FF7FB1DE000-memory.dmp