Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    20/09/2026, 23:14

General

  • Target
    Octo_Browser_latest_win.exe
  • Size 47.2MB
  • Sample260920-28bpjsvtft
  • SHA256 ce6d6d004c3e114b63d132902e087abdd5688de6e6a48e5d034f19e9961cfc31
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Loads dropped DLL 11 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • 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
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Octo_Browser_latest_win.exe
    "C:\Users\Admin\AppData\Local\Temp\Octo_Browser_latest_win.exe"
    1⤵
    • Enumerates connected drives
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:5048
  • 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:1428
    • 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,0x120,0xf4,0x124,0x7fff6ccdc728,0x7fff6ccdc734,0x7fff6ccdc740
      2⤵
        PID:240
      • 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=1772,i,6145262340630445435,13545658023068573595,262144 --field-trial-handle=1972,i,13064151279077039703,14222294719055646051,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=1868 /prefetch:2
        2⤵
          PID:4412
        • 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=2268,i,7239109941150976978,12581683213608896703,524288 --field-trial-handle=1972,i,13064151279077039703,14222294719055646051,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=2300 /prefetch:3
          2⤵
          • System Time Discovery
          PID:4080
        • 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=2440,i,7324273514256489835,16097639743796400499,524288 --field-trial-handle=1972,i,13064151279077039703,14222294719055646051,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=2312 /prefetch:8
          2⤵
            PID:3336
          • 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=3268,i,4705590899796235400,278034213257871690,2097152 --field-trial-handle=1972,i,13064151279077039703,14222294719055646051,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=3272 /prefetch:1
            2⤵
              PID:4092
            • 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=3288,i,15921821241206799328,15176318903169459511,2097152 --field-trial-handle=1972,i,13064151279077039703,14222294719055646051,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=3328 /prefetch:1
              2⤵
                PID:4328
              • 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=7 --metrics-shmem-handle=4512,i,11055868694748268345,7720817360928548369,2097152 --field-trial-handle=1972,i,13064151279077039703,14222294719055646051,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=4584 /prefetch:1
                2⤵
                  PID:4168
                • 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=5352,i,14304336352412515558,7525416766907710848,524288 --field-trial-handle=1972,i,13064151279077039703,14222294719055646051,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=5200 /prefetch:8
                  2⤵
                    PID:1508
                  • 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=5860,i,5126730302146333655,17817654497355704771,524288 --field-trial-handle=1972,i,13064151279077039703,14222294719055646051,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=5928 /prefetch:8
                    2⤵
                      PID:3096
                    • 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=5864,i,5475973784287924671,6155491438757681053,524288 --field-trial-handle=1972,i,13064151279077039703,14222294719055646051,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=5140 /prefetch:8
                      2⤵
                        PID:1572
                      • 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=5868,i,16967099855191236485,1208475473261947382,524288 --field-trial-handle=1972,i,13064151279077039703,14222294719055646051,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=5904 /prefetch:8
                        2⤵
                          PID:3488
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADoAAAIAAAAAAAAAAAAAGAAAQAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=5576,i,14851431087818501657,16756718220166728102,262144 --field-trial-handle=1972,i,13064151279077039703,14222294719055646051,262144 --variations-seed-version=20260911-010032.103000-production --mojo-platform-channel-handle=5572 /prefetch:8
                          2⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:3832
                      • 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:1740
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                          1⤵
                            PID:1816
                          • C:\Windows\system32\msiexec.exe
                            C:\Windows\system32\msiexec.exe /V
                            1⤵
                            • Enumerates connected drives
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of WriteProcessMemory
                            PID:448
                            • C:\Windows\syswow64\MsiExec.exe
                              C:\Windows\syswow64\MsiExec.exe -Embedding 1FC265630DA2623FD8A3EF78AFFB35C4 C
                              2⤵
                              • Loads dropped DLL
                              • System Location Discovery: System Language Discovery
                              PID:3676

                          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 649B
                                • SHA256 8e1e2b7f7ff8b51409f5ef0c1be915845f3e5943c227419c4ae7eb0b39742134
                                • MD5 SHA1 SHA512 TLSH

                                Network Persistent State

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                • Size 3KB
                                • SHA256 0ab2cc8bb6fad5b7ae11efd34048df4a5d42503199498daa74ed7c3fe0e439e3
                                • 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 11KB
                                • SHA256 a1886e545f5e9632c35ca0b143b8fc888845d5b01566ca0c94f2653301e67374
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                Preferences

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                • Size 12KB
                                • SHA256 9df82a1547b69283a0f14027f7112d9e1a4e43e5702775c190fd2b6c39543259
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                Secure Preferences

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                • Size 13KB
                                • SHA256 eff4472df129bc4e2b803cc39a1ba520374d3b607d22cd6393104a3be124b9c2
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                Local State

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                • Size 130KB
                                • SHA256 dc5ee7a15cece7c37c0dcd3f566d1e8ba128e383471fd879450427ad0daa79c1
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                Local State

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                • Size 262KB
                                • SHA256 a522740db338bf980ad8294642b90d378cd42cb33c96c80f124d0441f814e9a9
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                Local State

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                • Size 261KB
                                • SHA256 5f3e886352775f6311d041621ff8a05870168d276e0abfaaee1b6739b03f4386
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                Local State

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                • Size 261KB
                                • SHA256 8e4de94ee31b04fb6e2bc5eba80424ad606b708f9ea73ca08236c22538b3fed1
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                dialogbitmap.jpg

                                • Path C:\Users\Admin\AppData\Local\Temp\AI_EXTUI_BIN_5048\dialogbitmap.jpg
                                • Size 48KB
                                • SHA256 686004da6cdc1be243953d9899f2ea128a1d4bfacbfabdc2b57ba4e4ef11a811
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                MSIE348.tmp

                                • Path C:\Users\Admin\AppData\Local\Temp\MSIE348.tmp
                                • Size 391KB
                                • SHA256 fcf24b9b574ed026d3f68b7b70aa6533806ba7fc566c476ccb62e6493ac28f04
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                MSIE3E5.tmp

                                • Path C:\Users\Admin\AppData\Local\Temp\MSIE3E5.tmp
                                • Size 864KB
                                • SHA256 98f4ebaa6ea1083e98ea0dd5c74c2cb22b1375c55b6a12cfdc5d877f716de392
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                MSIE764.tmp

                                • Path C:\Users\Admin\AppData\Local\Temp\MSIE764.tmp
                                • Size 569KB
                                • SHA256 41abe8eb54a1910e6fc97fcea4de37a67058b7527badae8f39fba3788c46de14
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                octo.msi

                                • Path C:\Users\Admin\AppData\Roaming\Blackbird Secure Browsing LTD\Octo Browser 3.1.3\install\DE941F5\octo.msi
                                • Size 4.9MB
                                • SHA256 0875e94abd7e8e1773cffda31e2e0f56da0ba794e997ae01a0a742f1b4fc4ac5
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                decoder.dll

                                • Path C:\Users\Admin\AppData\Roaming\Blackbird Secure Browsing LTD\Octo Browser 3.1.3\install\decoder.dll
                                • Size 202KB
                                • SHA256 e3404d4af16702a67dcaa4da4c5a8776ef350343b179ae6e7f2d347e7e1d1fb7
                                • MD5 SHA1 SHA512 SSDEEP TLSH