Analysis

  • user interaction
    yes
  • max time kernel
    781s
  • max time network
    783s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    28/08/2026, 18:58

General

  • Target
    $PLUGINSDIR/System.dll
  • Size 12KB
  • Sample260828-xmkccasdnc
  • SHA256 996645d7f16a6294babb6da83478062aed7b72318d7a51b66e90ab5d3edc51a5
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Enumerates VirtualBox registry keys 2 TTPs 10 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 6 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs
  • Badlisted process makes network request 24 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Looks for VMWare Tools registry key 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 6 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Checks system information in the registry 2 TTPs 4 IoCs

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

  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 2 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Enumerates system info in registry 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:684
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2036
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 460
        3⤵
        • Program crash
        PID:2412
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2036 -ip 2036
    1⤵
      PID:2268
    • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe
      "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:3424
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
      1⤵
      • Badlisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2332
      • C:\Users\Admin\AppData\Local\00d916\fe00045e.exe
        "C:\Users\Admin\AppData\Local\00d916\fe00045e.exe"
        2⤵
        • Enumerates VirtualBox registry keys
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Looks for VirtualBox Guest Additions in registry
        • Looks for VMWare Tools registry key
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks system information in the registry
        • Checks for VirtualBox DLLs, possible anti-VM trick
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:4428
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
      1⤵
      • Badlisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4592
      • C:\Users\Admin\AppData\Local\468c8e\25684a6b.exe
        "C:\Users\Admin\AppData\Local\468c8e\25684a6b.exe"
        2⤵
        • Enumerates VirtualBox registry keys
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Looks for VirtualBox Guest Additions in registry
        • Looks for VMWare Tools registry key
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks system information in the registry
        • Checks for VirtualBox DLLs, possible anti-VM trick
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:720

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          fe00045e.exe

          • Path C:\Users\Admin\AppData\Local\00d916\fe00045e.exe
          • Size 4.7MB
          • SHA256 464be2d8fcc70beedf9c62cc97d7a0e3ff5a567d1e209bd9d85f1246899b3676
          • MD5 SHA1 SHA512 SSDEEP TLSH

          powershell.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
          • Size 4KB
          • SHA256 26e95b5fea0845f7e36db709fe7ae5f16692613335287d495797cf049217993b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ModuleAnalysisCache

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
          • Size 62KB
          • SHA256 b48eb9b8637997d1ce301af35ea735e9ec4a5de53ee7e05ce8e6ae495db55803
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 1KB
          • SHA256 fbabd110af18e6e33ea17e36e46e082440b2026d645413935ec1e1b0d0072998
          • MD5 SHA1 SHA512 TLSH

          __PSScriptPolicyTest_0ur0pq5h.wsf.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0ur0pq5h.wsf.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          ConsoleHost_history.txt

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PowerShell\PSReadLine\ConsoleHost_history.txt
          • Size 64B
          • SHA256 271c777aadc35caa132a89fa53199a0148c3cf18329a1ac3bfa2bad3ac4a8cdb
          • MD5 SHA1 SHA512 TLSH

          590aee7bdd69b59b.customDestinations-ms

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
          • Size 5KB
          • SHA256 013f2a932e680ef7e1f4d8ef4c54e93e5a1b4c8f47572b91eb80943520a48f31
          • MD5 SHA1 SHA512 SSDEEP TLSH

          590aee7bdd69b59b.customDestinations-ms

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
          • Size 5KB
          • SHA256 c790c14856db215671b9fc4a93046742b9baed15bd083e0be227436b4901d83a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/720-134-0x0000000750000000-0x0000000750295000-memory.dmp

          memory/720-133-0x0000000750000000-0x0000000750295000-memory.dmp

          memory/2332-39-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-20-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-24-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-26-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-28-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-29-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-30-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-31-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-32-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-35-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-36-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-37-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-21-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-41-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-43-0x000002B5AC920000-0x000002B5ACAE2000-memory.dmp

          memory/2332-50-0x000002B5AC750000-0x000002B5AC76C000-memory.dmp

          memory/2332-2-0x000002B5AC170000-0x000002B5AC192000-memory.dmp

          memory/2332-52-0x000002B5AC280000-0x000002B5AC28A000-memory.dmp

          memory/2332-53-0x000002B5AC830000-0x000002B5AC84C000-memory.dmp

          memory/2332-54-0x000002B5AC290000-0x000002B5AC29A000-memory.dmp

          memory/2332-55-0x000002B5AC870000-0x000002B5AC88A000-memory.dmp

          memory/2332-56-0x000002B5AC2A0000-0x000002B5AC2A8000-memory.dmp

          memory/2332-57-0x000002B5AC850000-0x000002B5AC856000-memory.dmp

          memory/2332-58-0x000002B5AC860000-0x000002B5AC86A000-memory.dmp

          memory/2332-9-0x000002B5AC230000-0x000002B5AC276000-memory.dmp

          memory/2332-68-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-71-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-18-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-17-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-14-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-13-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-12-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-10-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-23-0x000002B5933B0000-0x000002B593E72000-memory.dmp

          memory/2332-51-0x000002B5AC770000-0x000002B5AC823000-memory.dmp

          memory/4428-98-0x0000000750000000-0x0000000750295000-memory.dmp

          memory/4428-96-0x0000000750000000-0x0000000750295000-memory.dmp

          memory/4428-90-0x0000000750000000-0x0000000750295000-memory.dmp

          memory/4428-89-0x0000000750000000-0x0000000750295000-memory.dmp

          memory/4428-97-0x0000000750000000-0x0000000750295000-memory.dmp

          memory/4428-99-0x0000000750000000-0x0000000750295000-memory.dmp

          memory/4592-114-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-137-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-88-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-101-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-102-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-110-0x00000118C57F0000-0x00000118C58A3000-memory.dmp

          memory/4592-111-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-113-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-94-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-115-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-116-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-117-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-119-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-120-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-121-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-93-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-91-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-153-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-136-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-95-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-138-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-139-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-140-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-141-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-142-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-144-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-146-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-147-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-148-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-149-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-151-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-135-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-154-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-156-0x00000118AC4A0000-0x00000118ACF62000-memory.dmp

          memory/4592-166-0x00000118C6600000-0x00000118C6B28000-memory.dmp

          memory/4592-168-0x00000118C5EA0000-0x00000118C5EA8000-memory.dmp

          memory/4592-169-0x00000118C6F30000-0x00000118C6F68000-memory.dmp

          memory/4592-170-0x00000118C65C0000-0x00000118C65CE000-memory.dmp

          memory/4592-171-0x00000118CA2F0000-0x00000118CA478000-memory.dmp