Analysis

  • user interaction
    yes
  • max time kernel
    42s
  • max time network
    39s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/08/2026, 22:33

General

  • Target
    Installer.bat
  • Size 1KB
  • Sample260802-2gvy4sshqg
  • SHA256 a7a3d76ec75ac3216cd43f0d9d30e7715ac8c2097543cc6efc8df0e44ead0366
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 2 IoCs

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

  • System Time Discovery 1 TTPs 1 IoCs

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

  • 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 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Installer.bat"
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:1916
    • C:\Windows\system32\reg.exe
      reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "BackgroundService" /t REG_SZ /d "\"C:\Users\Admin\AppData\Roaming\LocalServiceLocal\DeltaBrowser.vbs\"" /f
      2⤵
      • Adds Run key to start application
      PID:1628
  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\LocalServiceLocal\DeltaBrowser.vbs"
    1⤵
    • Checks computer location settings
    • Executes a VBScript file via the Windows Script Host.
    • Suspicious use of WriteProcessMemory
    PID:4372
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\LocalServiceLocal\keylogger.bat" "
      2⤵
      • Executes a command shell one-liner
      PID:4060
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Checks processor information in registry
    • 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:2236
    • 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=0x118,0x11c,0x120,0xf4,0x124,0x7ffa997cc728,0x7ffa997cc734,0x7ffa997cc740
      2⤵
        PID:4808
      • 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=1708,i,4349077957296565619,11224970880822406858,262144 --field-trial-handle=2044,i,10804181989297147385,1647606824402299674,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2040 /prefetch:2
        2⤵
          PID:3656
        • 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=1604,i,10775789922970061025,13427108220416122346,524288 --field-trial-handle=2044,i,10804181989297147385,1647606824402299674,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2240 /prefetch:3
          2⤵
          • System Time Discovery
          PID:564
        • 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=2432,i,7578623758825743776,6726976781966502569,524288 --field-trial-handle=2044,i,10804181989297147385,1647606824402299674,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2612 /prefetch:8
          2⤵
            PID:4476
          • 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=3248,i,15842016451283975769,8709158975299222186,2097152 --field-trial-handle=2044,i,10804181989297147385,1647606824402299674,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3260 /prefetch:1
            2⤵
              PID:3192
            • 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=3276,i,13090513792858793593,3999596268262233955,2097152 --field-trial-handle=2044,i,10804181989297147385,1647606824402299674,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3316 /prefetch:1
              2⤵
                PID:2380
              • 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 --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=4368,i,1888954588092529277,7242568285989655539,2097152 --field-trial-handle=2044,i,10804181989297147385,1647606824402299674,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4384 /prefetch:2
                2⤵
                  PID:556
                • 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 --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=8 --metrics-shmem-handle=1700,i,330963905826224898,16366777595328300569,2097152 --field-trial-handle=2044,i,10804181989297147385,1647606824402299674,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4776 /prefetch:1
                  2⤵
                    PID:2212
                  • 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=5560,i,3536482530083526660,359469393307509717,524288 --field-trial-handle=2044,i,10804181989297147385,1647606824402299674,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5568 /prefetch:8
                    2⤵
                      PID:3820
                  • 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:4284
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                      1⤵
                        PID:3348

                      Network

                            MITRE ATT&CK Enterprise v16

                            Replay Monitor

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                            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 882fa7c01e02738f23da33f5750843112eceef4a8c78666d6db759a48c97b778
                            • 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 71cedb85d7520e5053cdb11a27ccc1b055c228afbdb209087b1eb9ed2e94616e
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            Secure Preferences

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                            • Size 17KB
                            • SHA256 34d3b150d9ebc3413240a436dcd8cc4d2da0e46d00a681d2118263aea9d32f3e
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            Local State

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                            • Size 115KB
                            • SHA256 6ec54b7186200a487ef9963fe4a1bd79cae3f939bf046db224114bb1f9946f6d
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            Local State

                            • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                            • Size 235KB
                            • SHA256 a57f01a2f9bae1587fbb483d020c6a54551497c45b73f3cd6d20a659307a0876
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            DeltaBrowser.vbs

                            • Path C:\Users\Admin\AppData\Roaming\LocalServiceLocal\DeltaBrowser.vbs
                            • Size 175B
                            • SHA256 cfe335fc1ba3bad667696ba62d6406980dabf6adc7aa7d8c7e2fcd36a4259640
                            • MD5 SHA1 SHA512 TLSH

                            keylogger.bat

                            • Path C:\Users\Admin\AppData\Roaming\LocalServiceLocal\keylogger.bat
                            • Size 1KB
                            • SHA256 81024c6fb55942ae06941a0e0ee432e638e8dd36a27b57600677ebd17021b3b2
                            • MD5 SHA1 SHA512 TLSH