Analysis

  • user interaction
    yes
  • max time kernel
    35s
  • max time network
    34s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    23/10/2026, 14:02

General

  • Target
    RajastrapInstaller.exe
  • Size 469KB
  • Sample261023-rce2zset5p
  • SHA256 e83c714aa2e1cd50cf143db2d25e267673ba0e0c25a8ea786ba3a76f9a61ca16
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs
  • Direct Volume Access: Opens a physical disk for reading 1 TTPs 1 IoCs

    Opens a raw handle to a physical disk, which bypasses file system access controls and is used for disk inspection, anti-VM checks and privilege checks.

  • 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 4 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.

  • Enumerates system info in registry 2 TTPs 9 IoCs
  • Modifies registry class 10 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\RajastrapInstaller.exe
    "C:\Users\Admin\AppData\Local\Temp\RajastrapInstaller.exe"
    1⤵
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious use of WriteProcessMemory
    PID:4360
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -NonInteractive -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Rajastrap' -ErrorAction SilentlyContinue"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2124
    • C:\Windows\SYSTEM32\schtasks.exe
      schtasks /Create /TN "AppSystemServices" /TR "\"C:\Users\Admin\AppData\Local\Rajastrap\Rajastrap.exe\"" /SC ONLOGON /RL HIGHEST /F
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3324
  • C:\Users\Admin\AppData\Local\Rajastrap\Rajastrap.exe
    C:\Users\Admin\AppData\Local\Rajastrap\Rajastrap.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Enumerates connected drives
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Direct Volume Access: Opens a physical disk for reading
    • Reads the TCP/IP host and domain name from the registry
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3612
    • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
      "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --embedded-browser-webview=1 --webview-exe-name=Rajastrap.exe --user-data-dir="C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --no-sandbox --mojo-named-platform-channel-pipe=3612.2400.11681466593647338890
      2⤵
      • Enumerates system info in registry
      • Suspicious use of WriteProcessMemory
      PID:4940
      • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
        "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=crashpad-handler --user-data-dir=C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Crashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --annotation=plat=Win64 "--annotation=prod=Edge WebView2" --annotation=ver=132.0.2957.140 --initial-client-data=0x15c,0x160,0x164,0x138,0x16c,0x7ffab6afb078,0x7ffab6afb084,0x7ffab6afb090
        3⤵
          PID:4068
        • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
          "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=gpu-process --no-sandbox --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView" --webview-exe-name=Rajastrap.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --always-read-main-dll --field-trial-handle=1736,i,16848365199223415503,1912085076109977122,262144 --variations-seed-version --mojo-platform-channel-handle=1728 /prefetch:2
          3⤵
            PID:2340
          • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
            "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-sandbox --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView" --webview-exe-name=Rajastrap.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=1924,i,16848365199223415503,1912085076109977122,262144 --variations-seed-version --mojo-platform-channel-handle=1936 /prefetch:3
            3⤵
              PID:3328
            • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
              "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-sandbox --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView" --webview-exe-name=Rajastrap.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=1688,i,16848365199223415503,1912085076109977122,262144 --variations-seed-version --mojo-platform-channel-handle=2244 /prefetch:8
              3⤵
                PID:2624
              • C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe
                "C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedgewebview2.exe" --type=renderer --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView" --webview-exe-name=Rajastrap.exe --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --no-sandbox --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --js-flags="--harmony-weak-refs-with-cleanup-some --expose-gc --ms-user-locale=" --always-read-main-dll --field-trial-handle=3388,i,16848365199223415503,1912085076109977122,262144 --variations-seed-version --mojo-platform-channel-handle=3424 /prefetch:1
                3⤵
                  PID:2104
            • C:\Users\Admin\AppData\Local\Rajastrap\Rajastrap.exe
              "C:\Users\Admin\AppData\Local\Rajastrap\Rajastrap.exe"
              1⤵
              • Executes dropped EXE
              PID:3580

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  Rajastrap.exe

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\Rajastrap.exe
                  • Size 2.5MB
                  • SHA256 c8c3c2a42491d706f6fee4129b075919b1b8985eabbcd0b11c65e1392872c390
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Rajastrap1.dll

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\Rajastrap1.dll
                  • Size 148KB
                  • SHA256 559deb68dd0371581d1ad404aa2570572c87369996aa163696dd93aa5c96334e
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  Rajastrap2.dll

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\Rajastrap2.dll
                  • Size 116KB
                  • SHA256 591c6f709e7d3f131e4ac7a5955ac286ae1c0583b8e16dd516e3e9f13589ba5e
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  06231c9f-5411-4f65-bb0f-903d0ec0732a.tmp

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\06231c9f-5411-4f65-bb0f-903d0ec0732a.tmp
                  • Size 16KB
                  • SHA256 0b51112ffdd4b75b00e051264c251abaa5ab3dbaee371f558c75e3fa7d9d5e16
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  0f729dad-064a-4542-8475-e34e6038f5c9.tmp

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\0f729dad-064a-4542-8475-e34e6038f5c9.tmp
                  • Size 16KB
                  • SHA256 73266cbde13ff36317f17ca6dabc7c67a31f1d8378a8252625c022dd9e062203
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  643a60c9-1ea0-4235-a6f1-c3a1ea4e2eaa.tmp

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\643a60c9-1ea0-4235-a6f1-c3a1ea4e2eaa.tmp
                  • Size 2KB
                  • SHA256 81690992f1fc2c00e68a6db67bd296ed7f33f971b2b87105493b7aed2bfbcd57
                  • MD5 SHA1 SHA512 TLSH

                  6fab6cae-7eda-42fe-8760-f4da34ab898e.tmp

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\6fab6cae-7eda-42fe-8760-f4da34ab898e.tmp
                  • Size 1KB
                  • SHA256 3deefdffce1344bae76ce01402cee3d44d5b6358c3a9e657f620046c2cd19c8e
                  • MD5 SHA1 SHA512 TLSH

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 d0814141c96ac674c8cdf4eb54ace257b7a0b4d4f7137a5a6eec567bb12bbdb7
                  • MD5 SHA1 SHA512

                  settings.dat

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Crashpad\settings.dat
                  • Size 280B
                  • SHA256 88a0edfb95e59e982750af176e0a8fb469234a2c2353e6ce34e0a7789e5a3d99
                  • MD5 SHA1 SHA512 TLSH

                  throttle_store.dat

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Crashpad\throttle_store.dat
                  • Size 20B
                  • SHA256 41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304
                  • MD5 SHA1 SHA512

                  9828c37c-82d9-4e48-8231-fa42606c1d4d.tmp

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Default\9828c37c-82d9-4e48-8231-fa42606c1d4d.tmp
                  • Size 6KB
                  • SHA256 e91bf033f552df9d1fef77e857235312027de10c2d4de84092db3ddb076c0404
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  temp-index

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Default\Code Cache\js\index-dir\temp-index
                  • Size 48B
                  • SHA256 e9d6413754e1403f3051f1c1c58dec93b45b138df67617722f7cc24bfa0a5d08
                  • MD5 SHA1 SHA512

                  temp-index

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Default\Code Cache\js\index-dir\temp-index
                  • Size 72B
                  • SHA256 ff27f4a117d0bc434e964cbcf4fd73b7f2b5b2347bd0c7f9dd7211e6d136c659
                  • MD5 SHA1 SHA512 TLSH

                  index

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Default\DawnWebGPUCache\index
                  • Size 256KB
                  • SHA256 3cd974d7118fa02ab6f1d213c98f0fef24c7a10bcab0647e9faa7b701156d305
                  • MD5 SHA1 SHA512 SSDEEP

                  data_0

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Default\GPUCache\data_0
                  • Size 8KB
                  • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                  • MD5 SHA1 SHA512 SSDEEP

                  data_1

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Default\GPUCache\data_1
                  • Size 264KB
                  • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                  • MD5 SHA1 SHA512 SSDEEP

                  data_2

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Default\GPUCache\data_2
                  • Size 8KB
                  • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                  • MD5 SHA1 SHA512 SSDEEP

                  data_3

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Default\GPUCache\data_3
                  • Size 8KB
                  • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                  • MD5 SHA1 SHA512 SSDEEP

                  SCT Auditing Pending Reports

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Default\Network\SCT Auditing Pending Reports
                  • Size 2B
                  • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                  • MD5 SHA1 SHA512

                  CURRENT

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Default\Site Characteristics Database\CURRENT
                  • Size 16B
                  • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                  • MD5 SHA1 SHA512

                  MANIFEST-000001

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Default\Sync Data\LevelDB\MANIFEST-000001
                  • Size 41B
                  • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                  • MD5 SHA1 SHA512

                  Local State

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\Local State
                  • Size 1KB
                  • SHA256 dd6098890f2947bda7671aee027de74d8d4f1946d1fb79ee894600733899a5fa
                  • MD5 SHA1 SHA512 TLSH

                  f6e5dd7d-e11a-47d9-a855-cecdb3857b8d.tmp

                  • Path C:\Users\Admin\AppData\Local\Rajastrap\WebView2\EBWebView\f6e5dd7d-e11a-47d9-a855-cecdb3857b8d.tmp
                  • Size 3KB
                  • SHA256 1386ff6c6500899990614ddda5080e781dd3ddf46fa46ad2dc711348aa3706b9
                  • MD5 SHA1 SHA512 TLSH

                  __PSScriptPolicyTest_unoos2tn.mey.ps1

                  • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_unoos2tn.mey.ps1
                  • Size 60B
                  • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                  • MD5 SHA1 SHA512 TLSH

                  memory/2124-12-0x000001FFEE4C0000-0x000001FFEE6DC000-memory.dmp

                  memory/2124-1-0x000001FFEC2B0000-0x000001FFEC2C0000-memory.dmp

                  memory/2124-7-0x000001FFEE490000-0x000001FFEE4B2000-memory.dmp

                  memory/2124-0-0x000001FFEC2B0000-0x000001FFEC2C0000-memory.dmp