Analysis

  • user interaction
    yes
  • max time kernel
    98s
  • max time network
    101s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    29/04/2026, 02:51

General

  • Target
    arnis-windows.exe
  • Size 35.5MB
  • Sample260429-db5pcsbz2j
  • SHA256 bf21ea93b7826cf08fd5d5ce01a8c16ca7d914033f96321d6f1e9295f33d41ef
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

  • Drops file in Windows directory 7 IoCs
  • Modifies trusted root certificate store through registry 1 TTPs 2 IoCs

    A root certificate was added, modified, or removed in the trusted certificate store registry paths.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies system certificate store 2 TTPs 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\arnis-windows.exe
    "C:\Users\Admin\AppData\Local\Temp\arnis-windows.exe"
    1⤵
    • Checks whether UAC is enabled
    • Modifies trusted root certificate store through registry
    • Modifies system certificate store
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:3392
    • 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=arnis-windows.exe --webview-exe-version=2.7.0 --user-data-dir="C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView" --noerrdialogs --embedded-browser-webview-dpi-awareness=2 --disable-features=VizDisplayCompositor --lang=en-US --mojo-named-platform-channel-pipe=3392.4344.8848183553983330024
      2⤵
      • Drops file in Windows directory
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of WriteProcessMemory
      PID:4144
      • 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\com.louisdev.arnis\EBWebView /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Users\Admin\AppData\Local\com.louisdev.arnis\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=0x160,0x164,0x168,0x11c,0x170,0x7ffca68fb078,0x7ffca68fb084,0x7ffca68fb090
        3⤵
          PID:2412
        • 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 --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView" --webview-exe-name=arnis-windows.exe --webview-exe-version=2.7.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --gpu-preferences=UAAAAAAAAADgAAAEAAAAAAAAAAAAAAAAAABgAAEAAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAAAAAAAIAAAAAAAAAAgAAAAAAAAA --always-read-main-dll --field-trial-handle=1696,i,14124773544527970815,17847640408436248432,262144 --disable-features=VizDisplayCompositor --variations-seed-version --mojo-platform-channel-handle=1704 /prefetch:2
          3⤵
            PID:1484
          • 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 --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView" --webview-exe-name=arnis-windows.exe --webview-exe-version=2.7.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2020,i,14124773544527970815,17847640408436248432,262144 --disable-features=VizDisplayCompositor --variations-seed-version --mojo-platform-channel-handle=2024 /prefetch:11
            3⤵
              PID:896
            • 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 --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView" --webview-exe-name=arnis-windows.exe --webview-exe-version=2.7.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=2284,i,14124773544527970815,17847640408436248432,262144 --disable-features=VizDisplayCompositor --variations-seed-version --mojo-platform-channel-handle=2300 /prefetch:13
              3⤵
                PID:4048
              • 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\com.louisdev.arnis\EBWebView" --webview-exe-name=arnis-windows.exe --webview-exe-version=2.7.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --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=3508,i,14124773544527970815,17847640408436248432,262144 --disable-features=VizDisplayCompositor --variations-seed-version --mojo-platform-channel-handle=3528 /prefetch:1
                3⤵
                  PID:3916
                • 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=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView" --webview-exe-name=arnis-windows.exe --webview-exe-version=2.7.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=4632,i,14124773544527970815,17847640408436248432,262144 --disable-features=VizDisplayCompositor --variations-seed-version --mojo-platform-channel-handle=4636 /prefetch:14
                  3⤵
                    PID:1352
                  • 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=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --string-annotations --noerrdialogs --user-data-dir="C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView" --webview-exe-name=arnis-windows.exe --webview-exe-version=2.7.0 --embedded-browser-webview=1 --embedded-browser-webview-dpi-awareness=2 --always-read-main-dll --field-trial-handle=756,i,14124773544527970815,17847640408436248432,262144 --disable-features=VizDisplayCompositor --variations-seed-version --mojo-platform-channel-handle=4616 /prefetch:14
                    3⤵
                      PID:5092

                Network

                      MITRE ATT&CK Enterprise v16

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      6b939b69-1bf0-48dd-9933-1f80c22f9bbb.tmp

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\6b939b69-1bf0-48dd-9933-1f80c22f9bbb.tmp
                      • Size 3KB
                      • SHA256 03d11db7fa2966b39f378da68047295d6649eca3bf20bd6f61caadf4c0401d1b
                      • MD5 SHA1 SHA512 TLSH

                      protocols.json

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\AutoLaunchProtocolsComponent\1.0.0.10\protocols.json
                      • Size 3KB
                      • SHA256 4fd800e7b1a5fb24b13fac2e31946d205012b7c28d8c61580b0669b2fa3517cc
                      • MD5 SHA1 SHA512 TLSH

                      crl-set

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\CertificateRevocation\6498.2025.9.4\crl-set
                      • Size 22KB
                      • SHA256 6ddcaf50aaff98b960d067054ce2ce17872ac0719d02abbb7fe56b9eabc818f2
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      settings.dat

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Crashpad\settings.dat
                      • Size 280B
                      • SHA256 60ee33c64e2fb7bfac5df1efef3e073c02e8a323294339df8b007855b98a4d93
                      • MD5 SHA1 SHA512 TLSH

                      settings.dat

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Crashpad\settings.dat
                      • Size 280B
                      • SHA256 e3d79ab0da8861ee9300e1ab860e7eff63aeb09d36bfc941e211f886f9e9c8c4
                      • MD5 SHA1 SHA512

                      throttle_store.dat

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

                      the-real-index

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                      • Size 48B
                      • SHA256 ec39e6b072c395c291d27208283df04e517579792e0dec760618187a95fa0703
                      • MD5 SHA1 SHA512

                      the-real-index

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Code Cache\js\index-dir\the-real-index
                      • Size 384B
                      • SHA256 e658c320e367ac5a6aa89473ba172884d8194ee3b43bcb3252d60446472f2de4
                      • MD5 SHA1 SHA512 TLSH

                      index

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\DawnGraphiteCache\index
                      • Size 256KB
                      • SHA256 f2c25efc37c090dd8c526b9a56d5c375d004f6d2e6decde26014ca07f8d2c7d2
                      • MD5 SHA1 SHA512 SSDEEP

                      data_0

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\DawnWebGPUCache\data_0
                      • Size 8KB
                      • SHA256 d6a5fe39cd672781b256e0e3102f7022635f1d4bb7cfcc90a80fffe4d0f3877e
                      • MD5 SHA1 SHA512 SSDEEP

                      data_1

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\DawnWebGPUCache\data_1
                      • Size 264KB
                      • SHA256 902f30c1fb0597d0734bc34b979ec5d131f8f39a4b71b338083821216ec8d61b
                      • MD5 SHA1 SHA512 SSDEEP

                      data_2

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\DawnWebGPUCache\data_2
                      • Size 8KB
                      • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                      • MD5 SHA1 SHA512 SSDEEP

                      data_3

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\DawnWebGPUCache\data_3
                      • Size 8KB
                      • SHA256 e09f42c398d688dce168570291f1f92d079987deda3099a34adb9e8c0522b30c
                      • MD5 SHA1 SHA512 SSDEEP

                      MANIFEST-000001

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Extension Rules\MANIFEST-000001
                      • Size 41B
                      • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                      • MD5 SHA1 SHA512

                      Network Persistent State

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Network\Network Persistent State
                      • Size 580B
                      • SHA256 bb714b8bc6eca017525578971640d636cbb4caad26ad237ec985df468101974c
                      • MD5 SHA1 SHA512 TLSH

                      Network Persistent State~RFe5971ea.TMP

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Network\Network Persistent State~RFe5971ea.TMP
                      • Size 59B
                      • SHA256 226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974
                      • MD5 SHA1 SHA512 TLSH

                      SCT Auditing Pending Reports

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

                      TransportSecurity

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Network\TransportSecurity
                      • Size 355B
                      • SHA256 be103241154b4244d75ffba212f2cd6b00204ba42701b5a99beb705b243cbef1
                      • MD5 SHA1 SHA512 TLSH

                      TransportSecurity

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Network\TransportSecurity
                      • Size 355B
                      • SHA256 2b9a5dd231e86e9ecae9f586bcf78554b1f373343be7377ecd95dde19d1fc116
                      • MD5 SHA1 SHA512 TLSH

                      TransportSecurity

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Network\TransportSecurity
                      • Size 355B
                      • SHA256 e6a09a10ca8b616da104c5aba729803faa3b7a3db741a52459c6232da90ef19d
                      • MD5 SHA1 SHA512 TLSH

                      TransportSecurity

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Network\TransportSecurity
                      • Size 355B
                      • SHA256 d3d10f7b3fcf7309300dd6d917303033b88b3d10952019f6861907b9f921f0d4
                      • MD5 SHA1 SHA512 TLSH

                      TransportSecurity

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Network\TransportSecurity
                      • Size 355B
                      • SHA256 a7ae0a929819795fbafb8f9ace7d5349c6d539f3ca04424d68f1c72cc245e238
                      • MD5 SHA1 SHA512 TLSH

                      TransportSecurity

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Network\TransportSecurity
                      • Size 355B
                      • SHA256 d374987c5d46e2517086832eddbed4e75147df6fe9593704414fa7460a67a3b0
                      • MD5 SHA1 SHA512 TLSH

                      TransportSecurity

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Network\TransportSecurity
                      • Size 355B
                      • SHA256 8dac4de0fc2b51ba9d5f54c0b31f024d34130a45c9291a218cd62a8a9b461d61
                      • MD5 SHA1 SHA512 TLSH

                      TransportSecurity~RFe58ba23.TMP

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Network\TransportSecurity~RFe58ba23.TMP
                      • Size 355B
                      • SHA256 feb30cc02b52cd369e95832643cae325ae2f8f3418268f4593d6558b6a1eeaf7
                      • MD5 SHA1 SHA512 TLSH

                      Preferences

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Preferences
                      • Size 6KB
                      • SHA256 62a0a81d9a521e2b20f644a7ec20d67e3f7d5290e345bc3a3f0d387592762661
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      Preferences~RFe58f874.TMP

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Default\Preferences~RFe58f874.TMP
                      • Size 6KB
                      • SHA256 bb6644c09781e9df836ca3ae2760d161e302d06d74359fafe5376946c593ad9c
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      CURRENT

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

                      Local State

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Local State
                      • Size 1KB
                      • SHA256 3be526c6fc7a369144d05df2ad7e87b9810fccb6eb0eaf9ba2c2ab9880584f5c
                      • MD5 SHA1 SHA512 TLSH

                      Local State

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Local State
                      • Size 2KB
                      • SHA256 6310b03334799b0030bd44b72ec446fed4d640ce252fadcf0eae019996602e9c
                      • MD5 SHA1 SHA512 TLSH

                      Local State

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Local State
                      • Size 16KB
                      • SHA256 215d77d7b8f1e38d5fdb999fd5910159ab48d5cf27c9091c2b52aa7d544e064b
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      Local State~RFe5859b4.TMP

                      • Path C:\Users\Admin\AppData\Local\com.louisdev.arnis\EBWebView\Local State~RFe5859b4.TMP
                      • Size 1KB
                      • SHA256 fc101abeed193a16fa519750b0b147264a6d28b65bf126817bd3af03dd33aabe
                      • MD5 SHA1 SHA512 TLSH

                      manifest.fingerprint

                      • Path C:\Windows\SystemTemp\chrome_Unpacker_BeginUnzipping4144_1115793359\manifest.fingerprint
                      • Size 66B
                      • SHA256 c236a2ac7741d48e1c56980652331cb3f1f12baf937baf0b280600fbafb143e3
                      • MD5 SHA1 SHA512 TLSH

                      manifest.json

                      • Path C:\Windows\SystemTemp\chrome_Unpacker_BeginUnzipping4144_1115793359\manifest.json
                      • Size 135B
                      • SHA256 ba5c9096d20a482aaa1aa9e5f98ad6127d3e97c2f21de84f7c78d9b8073c8e26
                      • MD5 SHA1 SHA512 TLSH

                      manifest.json

                      • Path C:\Windows\SystemTemp\chrome_Unpacker_BeginUnzipping4144_1381573654\manifest.json
                      • Size 113B
                      • SHA256 98821f71a1973ac61b45967ce0c121eb598ac6e95abaa23c912d2f33e4237d8c
                      • MD5 SHA1 SHA512 TLSH

                      memory/1484-23-0x00007FFCC41E0000-0x00007FFCC41E1000-memory.dmp

                      memory/1484-250-0x000001AA4BF90000-0x000001AA4C02E000-memory.dmp

                      memory/3392-231-0x000002A8F8780000-0x000002A8F878C000-memory.dmp

                      memory/3916-251-0x0000013CBF940000-0x0000013CBF9DE000-memory.dmp

                      memory/3916-144-0x00007FFCC41E0000-0x00007FFCC41E1000-memory.dmp