Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    16/05/2026, 19:40

General

  • Target
    Neuronally Executor_96038004.exe
  • Size 583KB
  • Sample260516-ydmxjsct7k
  • SHA256 ddbd930cf742882ea6cc10ea5495f8aec24003664b81257c1b3900f3627b6684
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Downloads MZ/PE file 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 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 registry class 5 IoCs
  • Opens file in notepad (likely ransom note) 10 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Neuronally Executor_96038004.exe
    "C:\Users\Admin\AppData\Local\Temp\Neuronally Executor_96038004.exe"
    1⤵
    • Downloads MZ/PE file
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3384
    • C:\Users\Admin\AppData\Local\OperaGX_96038004.exe
      C:\Users\Admin\AppData\Local\OperaGX_96038004.exe --silent --allusers=0
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3852
      • C:\Users\Admin\AppData\Local\Temp\7zSC0FFA619\installer.exe
        C:\Users\Admin\AppData\Local\Temp\7zSC0FFA619\installer.exe --silent --allusers=0 --server-tracking-blob=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
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Enumerates system info in registry
        • Suspicious use of WriteProcessMemory
        PID:1188
        • C:\Users\Admin\AppData\Local\Temp\7zSC0FFA619\installer.exe
          C:\Users\Admin\AppData\Local\Temp\7zSC0FFA619\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=131.0.5877.57 --initial-client-data=0x288,0x28c,0x290,0x264,0x294,0x7ff6d9719e98,0x7ff6d9719ea4,0x7ff6d9719eb0
          4⤵
          • Executes dropped EXE
          PID:4300
        • C:\Users\Admin\AppData\Local\Temp\.opera\e4dbda48-948a-4e90-9789-1adc952386cd Opera GX Installer Temp\installer.exe
          "C:\Users\Admin\AppData\Local\Temp\.opera\e4dbda48-948a-4e90-9789-1adc952386cd Opera GX Installer Temp\installer.exe" --version
          4⤵
          • Executes dropped EXE
          PID:4068
        • C:\Users\Admin\AppData\Local\Temp\7zSC0FFA619\installer.exe
          "C:\Users\Admin\AppData\Local\Temp\7zSC0FFA619\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=1188 --package-dir-prefix="C:\Users\Admin\AppData\Local\Temp\.opera\e4dbda48-948a-4e90-9789-1adc952386cd Opera GX Installer Temp\opera_package_20260519163717" --session-guid=94fe5de7-5a6e-4647-bcba-0f3f287d5649 --server-tracking-blob="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 " --silent --desktopshortcut=1 --wait-for-package --initial-proc-handle=6808000000000000
          4⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Enumerates system info in registry
          • Suspicious use of WriteProcessMemory
          PID:4084
          • C:\Users\Admin\AppData\Local\Temp\7zSC0FFA619\installer.exe
            C:\Users\Admin\AppData\Local\Temp\7zSC0FFA619\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=131.0.5877.57 --initial-client-data=0x2a4,0x2a8,0x2ac,0x274,0x2b0,0x7ff6d9719e98,0x7ff6d9719ea4,0x7ff6d9719eb0
            5⤵
            • Executes dropped EXE
            PID:920
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\file.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:1180
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\file.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:1136
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\file.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:3144
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\file.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:4296
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\file.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:1548
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\file.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:2684
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\file.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:3332
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\file.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:1052
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\file.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:4860
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\file.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:940

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CB77E3D8FE906716C4DEE1FAFFCB74A5

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CB77E3D8FE906716C4DEE1FAFFCB74A5
        • Size 471B
        • SHA256 ec077bddb750e04429cb0fa27d90d02e1a7b7e56e15c2d8fc27e8c77d2580540
        • MD5 SHA1 SHA512 TLSH

        E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CB77E3D8FE906716C4DEE1FAFFCB74A5

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CB77E3D8FE906716C4DEE1FAFFCB74A5
        • Size 416B
        • SHA256 80f4da82565ca2f6aa3014b0c5df440bd5625bece7657088405de09d18dde6d8
        • MD5 SHA1 SHA512 TLSH

        OperaGX_96038004.exe

        • Path C:\Users\Admin\AppData\Local\OperaGX_96038004.exe
        • Size 3.9MB
        • SHA256 97a51843b9e72f1c794c12f9f9cbfb851d805ad036095cc7f892af9c986876cc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        installer.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7zSC0FFA619\installer.exe
        • Size 9.1MB
        • SHA256 f9ca0f35a13b9c8c05c26078865a553c7b7347e500bf381c72c73798b4a0fa69
        • MD5 SHA1 SHA512 SSDEEP TLSH

        file.txt

        • Path C:\Users\Admin\AppData\Local\file.txt
        • Size 58B
        • SHA256 379681a5df02e97b2e23514a4d3cd18f5c2ed7dc1084625133f8537671b6f92f
        • MD5 SHA1 SHA512 TLSH

        settings.dat

        • Path C:\Users\Admin\AppData\Roaming\Opera Software\Opera GX Stable\Crash Reports\settings.dat
        • Size 40B
        • SHA256 4e74b893fc0b932a3989b812bb2e735770f3f218044656a7fab816144e673bf9
        • MD5 SHA1 SHA512