Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/08/2026, 01:00

General

  • Target
    FluxusZ External 1.0.2_54591936.exe
  • Size 702KB
  • Sample260801-bcpy7avajd
  • SHA256 35d5cdf23553b14ad8051f68b1af8199805f06479391888f609af4ed54ed5a63
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Downloads MZ/PE file 3 IoCs
  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 4 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies data under HKEY_USERS 6 IoCs
  • Modifies registry class 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FluxusZ External 1.0.2_54591936.exe
    "C:\Users\Admin\AppData\Local\Temp\FluxusZ External 1.0.2_54591936.exe"
    1⤵
    • Downloads MZ/PE file
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4956
    • C:\Users\Admin\AppData\Local\OperaGX_.exe
      C:\Users\Admin\AppData\Local\OperaGX_.exe --silent --allusers=0
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5468
      • C:\Users\Admin\AppData\Local\Temp\7zSC556961A\installer.exe
        C:\Users\Admin\AppData\Local\Temp\7zSC556961A\installer.exe --silent --allusers=0 --server-tracking-blob=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
        3⤵
        • Downloads MZ/PE file
        • Executes dropped EXE
        • Enumerates connected drives
        • Enumerates system info in registry
        • Suspicious use of WriteProcessMemory
        PID:3136
        • C:\Users\Admin\AppData\Local\Temp\7zSC556961A\installer.exe
          C:\Users\Admin\AppData\Local\Temp\7zSC556961A\installer.exe --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\crash_count.txt" --url=https://crashstats-collector-2.opera.com/ --annotation=channel=Stable --annotation=plat=Win64 --annotation=prod=OperaDesktopGX --annotation=ver=133.0.5932.109 --initial-client-data=0x298,0x29c,0x2a0,0x274,0x2a4,0x7ff6be92cd88,0x7ff6be92cd94,0x7ff6be92cda0
          4⤵
          • Executes dropped EXE
          PID:4568
        • C:\Users\Admin\AppData\Local\Temp\.opera\bff7afd6-97e8-4b39-9c3d-48870865c563 Opera GX Installer Temp\installer.exe
          "C:\Users\Admin\AppData\Local\Temp\.opera\bff7afd6-97e8-4b39-9c3d-48870865c563 Opera GX Installer Temp\installer.exe" --version
          4⤵
          • Executes dropped EXE
          PID:708
        • C:\Users\Admin\AppData\Local\Temp\7zSC556961A\installer.exe
          "C:\Users\Admin\AppData\Local\Temp\7zSC556961A\installer.exe" --backend --install --import-browser-data=0 --enable-crash-reporting=1 --enable-stats=1 --enable-installer-stats=1 --consent-given=0 --general-interests=0 --general-location=0 --personalized-content=0 --personalized-ads=0 --launchopera=1 --showunbox=0 --installfolder="C:\Users\Admin\AppData\Local\Programs\Opera GX" --profile-folder --language=en --singleprofile=0 --copyonly=0 --allusers=0 --setdefaultbrowser=0 --pintotaskbar=1 --pintostartmenu=0 --run-at-startup=1 --server-tracking-data=server_tracking_data --initial-pid=3136 --package-dir-prefix="C:\Users\Admin\AppData\Local\Temp\.opera\bff7afd6-97e8-4b39-9c3d-48870865c563 Opera GX Installer Temp\opera_package_20260801020121" --session-guid=edf80064-7dae-462a-a8f7-ea0922fb2db3 --server-tracking-blob=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 --silent --desktopshortcut=1 --wait-for-package --initial-proc-handle=7405000000000000
          4⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Enumerates system info in registry
          • Suspicious use of WriteProcessMemory
          PID:4644
          • C:\Users\Admin\AppData\Local\Temp\7zSC556961A\installer.exe
            C:\Users\Admin\AppData\Local\Temp\7zSC556961A\installer.exe --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\crash_count.txt" --url=https://crashstats-collector-2.opera.com/ --annotation=channel=Stable --annotation=plat=Win64 --annotation=prod=OperaDesktopGX --annotation=ver=133.0.5932.109 --initial-client-data=0x2ac,0x2b0,0x2b4,0x274,0x2b8,0x7ff6be92cd88,0x7ff6be92cd94,0x7ff6be92cda0
            5⤵
            • Executes dropped EXE
            PID:4444
    • C:\Program Files\Booster\GameBooster.exe
      "C:\Program Files\Booster\GameBooster.exe" install
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:6100
  • C:\Program Files\Booster\GameBooster.exe
    "C:\Program Files\Booster\GameBooster.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Modifies data under HKEY_USERS
    • Suspicious use of WriteProcessMemory
    PID:5072
    • C:\Program Files\Booster\GameBooster.exe
      "C:\Program Files\Booster\GameBooster.exe" --minimized
      2⤵
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1392

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        GameBooster.exe

        • Path C:\Program Files\Booster\GameBooster.exe
        • Size 701KB
        • SHA256 b0f4bc5773ab22b63c49339e2dd854df5dfe98d3d2ed1181d47fb154b9d535c9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hgsdk.dll

        • Path C:\Program Files\Booster\hgsdk.dll
        • Size 7.4MB
        • SHA256 2720d215168108700767f8e9b57819d55ca139d69d8d828186da186850a37c6c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        8B2B9A00839EED1DFDCCC3BFC2F5DF12

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
        • Size 1KB
        • SHA256 63b14543360f5e89942ea8d5113526e64fbc71c1207328f0136b3a495d921dd0
        • MD5 SHA1 SHA512 TLSH

        B46811C17859FFB409CF0E904A4AA8F8

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
        • Size 528B
        • SHA256 d2bb091268ade68ad8121d2184d0fbce128070156304bd4de312e6fbd267409c
        • MD5 SHA1 SHA512 TLSH

        E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CB77E3D8FE906716C4DEE1FAFFCB74A5

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CB77E3D8FE906716C4DEE1FAFFCB74A5
        • Size 471B
        • SHA256 0d2833c0297374f4dab44798d2a22189c5c84550445adc9d85aa0d65f2f6f7bb
        • MD5 SHA1 SHA512 TLSH

        8B2B9A00839EED1DFDCCC3BFC2F5DF12

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
        • Size 174B
        • SHA256 0e196dcdf800e118bb3de3de21420a2614330507723a9f2b4cb7ea4ea32cf924
        • MD5 SHA1 SHA512 TLSH

        B46811C17859FFB409CF0E904A4AA8F8

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
        • Size 170B
        • SHA256 7152978b33a7ebe5016f1941bc3a9aeadd0eec646617eac31bb194fa6a434981
        • MD5 SHA1 SHA512 TLSH

        E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CB77E3D8FE906716C4DEE1FAFFCB74A5

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CB77E3D8FE906716C4DEE1FAFFCB74A5
        • Size 416B
        • SHA256 049f7da67bc503447267bf7df886d92381ada678859a331efa1d78473fd252c1
        • MD5 SHA1 SHA512 TLSH

        OperaGX_.exe

        • Path C:\Users\Admin\AppData\Local\OperaGX_.exe
        • Size 3.9MB
        • SHA256 1c8a026b1a1131380578d1ea9daee6dd1157742e5cb10734c73a4ffe44e3a2a4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        installer.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zSC556961A\installer.exe
        • Size 9.1MB
        • SHA256 94e544bce1fb4f965564026d1f61eb1bf8e0f750305b1a2c82ea8a445ebb9f1a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        settings.dat

        • Path C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports\settings.dat
        • Size 40B
        • SHA256 52fbca3fc7e4fe0ee192b97d7b13e161d3b873697f8fdaab231a67ea5e1112a4
        • MD5 SHA1 SHA512