Analysis

  • user interaction
    yes
  • max time kernel
    35s
  • max time network
    34s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    17/06/2026, 03:17

General

  • Target
    https://usc1.contabostorage.com/d46add0df8a847a68cd47cd65042a6bf:mine/RuntimeHost.exe
  • Sample260617-dtekwsas4j

Malware Config

Signatures

  • Enumerates VirtualBox registry keys 2 TTPs 3 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Downloads MZ/PE file 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • ConfuserEx .NET packer 1 IoCs

    Detects ConfuserEx .NET packer.

  • Drops file in Windows directory 1 IoCs
  • Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 1 IoCs

    When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Time Discovery 1 TTPs 2 IoCs

    Adversary may gather the system time and/or time zone settings from a local or remote system.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 2 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 42 IoCs
  • Suspicious use of SendNotifyMessage 16 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://usc1.contabostorage.com/d46add0df8a847a68cd47cd65042a6bf:mine/RuntimeHost.exe
    1⤵
    • Drops file in Windows directory
    • System Time Discovery
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1380
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=140.0.7339.81 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffcffb3c728,0x7ffcffb3c734,0x7ffcffb3c740
      2⤵
        PID:3448
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=1580,i,8472324798163157400,17856691459614106541,262144 --field-trial-handle=1848,i,353763553552567813,13963540527135430444,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=1844 /prefetch:2
        2⤵
          PID:692
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=1448,i,13353700343754992412,939519962735348828,524288 --field-trial-handle=1848,i,353763553552567813,13963540527135430444,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2260 /prefetch:11
          2⤵
          • Downloads MZ/PE file
          • System Time Discovery
          PID:4144
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --metrics-shmem-handle=2348,i,16762855381076583957,4619236801917267160,524288 --field-trial-handle=1848,i,353763553552567813,13963540527135430444,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2860 /prefetch:13
          2⤵
            PID:4348
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --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=6 --metrics-shmem-handle=3132,i,12493864666027991351,3159288456471260443,2097152 --field-trial-handle=1848,i,353763553552567813,13963540527135430444,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3192 /prefetch:1
            2⤵
              PID:4568
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --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 --metrics-shmem-handle=3136,i,3109003091838883125,10546976957285774166,2097152 --field-trial-handle=1848,i,353763553552567813,13963540527135430444,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3212 /prefetch:1
              2⤵
                PID:1812
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --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=7 --metrics-shmem-handle=4444,i,17190433171054384148,9583496719001370460,2097152 --field-trial-handle=1848,i,353763553552567813,13963540527135430444,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4452 /prefetch:9
                2⤵
                  PID:2868
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=5596,i,7921541285419661969,13036711932580140816,524288 --field-trial-handle=1848,i,353763553552567813,13963540527135430444,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5604 /prefetch:14
                  2⤵
                    PID:2796
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=5944,i,1321016791103010695,6707356290925863191,524288 --field-trial-handle=1848,i,353763553552567813,13963540527135430444,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=6000 /prefetch:14
                    2⤵
                    • Subvert Trust Controls: Mark-of-the-Web Bypass
                    • NTFS ADS
                    PID:1644
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5312,i,7013455010906196448,11959454231042500901,524288 --field-trial-handle=1848,i,353763553552567813,13963540527135430444,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5980 /prefetch:14
                    2⤵
                      PID:5104
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=6004,i,6912839545213816279,15678572744892097318,524288 --field-trial-handle=1848,i,353763553552567813,13963540527135430444,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5992 /prefetch:14
                      2⤵
                        PID:1324
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5372,i,12686910432316846749,5513946855504903472,524288 --field-trial-handle=1848,i,353763553552567813,13963540527135430444,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5820 /prefetch:14
                        2⤵
                          PID:5036
                      • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
                        "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
                        1⤵
                          PID:1772
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                          1⤵
                            PID:4156
                          • C:\Windows\System32\rundll32.exe
                            C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                            1⤵
                              PID:1708
                            • C:\Users\Admin\Downloads\RuntimeHost.exe
                              "C:\Users\Admin\Downloads\RuntimeHost.exe"
                              1⤵
                              • Enumerates VirtualBox registry keys
                              • Looks for VirtualBox Guest Additions in registry
                              • Looks for VMWare Tools registry key
                              • Executes dropped EXE
                              • Suspicious use of AdjustPrivilegeToken
                              PID:1564

                            Network

                                  MITRE ATT&CK Enterprise v16

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  BookmarkMergedSurfaceOrdering

                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BookmarkMergedSurfaceOrdering
                                  • Size 6B
                                  • SHA256 4489f9e3e454748b3521eb214e0a5694d562cff3d9ff511cb456953c8f534c00
                                  • MD5 SHA1 SHA512

                                  BrowsingTopicsState

                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState
                                  • Size 414B
                                  • SHA256 0960fcd0fc118164d76685e8ec1f08020ea70addce52a4774a0467a10f1c325f
                                  • MD5 SHA1 SHA512 TLSH

                                  SCT Auditing Pending Reports

                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
                                  • Size 2B
                                  • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                  • MD5 SHA1 SHA512

                                  Preferences

                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                  • Size 12KB
                                  • SHA256 edccbb98e2046c325fa69aed0a1e0c5a5623bd0f1b8b965e7c0134b710803803
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  Secure Preferences

                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                  • Size 17KB
                                  • SHA256 78f2b9e9ebc08798880cb4679beee8aef2e584a4e9691c5edb1c0165ca1273af
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  the-real-index

                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index
                                  • Size 120B
                                  • SHA256 11b0612bc5d3b51414ab9e851f7bfb5d3582e6d4dc3986443362e233ad68e3b0
                                  • MD5 SHA1 SHA512 TLSH

                                  the-real-index~RFe58ef0e.TMP

                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe58ef0e.TMP
                                  • Size 96B
                                  • SHA256 c5d501d642754e237f1b310bac54d168588838aa92226938af9921bfad4696f6
                                  • MD5 SHA1 SHA512 TLSH

                                  Local State

                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                  • Size 116KB
                                  • SHA256 01725554321ed3fa1a7fed4b04e1e3f600e32131f40a19d2d47c25b9514d1778
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  Local State

                                  • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                  • Size 115KB
                                  • SHA256 f6086ff0d7c7a08d441ed5b710dd60fc4759aadd6fb40c6d27f09a1507abb7a5
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  RuntimeHost.exe:Zone.Identifier

                                  • Path C:\Users\Admin\Downloads\RuntimeHost.exe:Zone.Identifier
                                  • Size 121B
                                  • SHA256 2f952aa480abe467922d18b057c627c8cff1cda2069e9c0048e6b6433397c0f4
                                  • MD5 SHA1 SHA512 TLSH

                                  Unconfirmed 990702.crdownload

                                  • Path C:\Users\Admin\Downloads\Unconfirmed 990702.crdownload
                                  • Size 815KB
                                  • SHA256 e15fcf66f05f7f95102abdf4fb51dc4a5cd4f3a1ee8307e924e51cd5da54df2a
                                  • MD5 SHA1 SHA512 SSDEEP TLSH

                                  memory/1564-72-0x000002086A5C0000-0x000002086A692000-memory.dmp

                                  memory/1564-73-0x000002086CBB0000-0x000002086CBC0000-memory.dmp