Analysis

  • user interaction
    yes
  • max time kernel
    298s
  • max time network
    271s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    03/07/2026, 19:41

General

  • Target
    GUP.exe
  • Size 789KB
  • Sample260703-yeacvaby2n
  • SHA256 b9c965aa538c21b4702ec7e4f3ac47fc999e1cd505d69e0896a309f7956bb351
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Looks up external IP address via web service 5 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Checks installed software on the system 1 TTPs

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

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 5 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 2 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 43 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 27 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\GUP.exe
    "C:\Users\Admin\AppData\Local\Temp\GUP.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4796
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      2⤵
        PID:4536
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe"
        2⤵
          PID:3664
      • 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:4712
        • 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:5080
          • C:\Windows\System32\rundll32.exe
            C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
            1⤵
              PID:1240
            • C:\Windows\system32\OpenWith.exe
              C:\Windows\system32\OpenWith.exe -Embedding
              1⤵
              • Modifies registry class
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:2932
              • C:\Windows\system32\NOTEPAD.EXE
                "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Downloads\WatchExport.php
                2⤵
                • Opens file in notepad (likely ransom note)
                PID:3728
            • C:\Windows\system32\OpenWith.exe
              C:\Windows\system32\OpenWith.exe -Embedding
              1⤵
              • Modifies registry class
              • Suspicious use of SetWindowsHookEx
              PID:4472
            • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
              "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\Desktop\ProtectDebug.xlsx"
              1⤵
              • Checks processor information in registry
              • Enumerates system info in registry
              • Suspicious behavior: AddClipboardFormatListener
              • Suspicious use of SetWindowsHookEx
              PID:4640
            • C:\Windows\system32\taskmgr.exe
              "C:\Windows\system32\taskmgr.exe" /4
              1⤵
              • Checks SCSI registry key(s)
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              PID:5072

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  index.dat

                  • Path C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
                  • Size 313B
                  • SHA256 65dbc350b795b1ad0857b6078efc360f7afed808324899f1e0599f306dee818b
                  • MD5 SHA1 SHA512 TLSH

                  b8ab77100df80ab2.customDestinations-ms

                  • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
                  • Size 1KB
                  • SHA256 4a39354637feda2cd3b0ba2b2e7d17795641d55b7ebbb12280b94af160dfde4f
                  • MD5 SHA1 SHA512 TLSH

                  memory/4640-150-0x00007FF9E4630000-0x00007FF9E4640000-memory.dmp

                  memory/4640-95-0x00007FF9E4630000-0x00007FF9E4640000-memory.dmp

                  memory/4640-100-0x00007FF9E1CD0000-0x00007FF9E1CE0000-memory.dmp

                  memory/4640-151-0x00007FF9E4630000-0x00007FF9E4640000-memory.dmp

                  memory/4640-149-0x00007FF9E4630000-0x00007FF9E4640000-memory.dmp

                  memory/4640-148-0x00007FF9E4630000-0x00007FF9E4640000-memory.dmp

                  memory/4640-101-0x00007FF9E1CD0000-0x00007FF9E1CE0000-memory.dmp

                  memory/4640-98-0x00007FF9E4630000-0x00007FF9E4640000-memory.dmp

                  memory/4640-99-0x00007FF9E4630000-0x00007FF9E4640000-memory.dmp

                  memory/4640-96-0x00007FF9E4630000-0x00007FF9E4640000-memory.dmp

                  memory/4640-97-0x00007FF9E4630000-0x00007FF9E4640000-memory.dmp

                  memory/4796-20-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-94-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-9-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-10-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-11-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-12-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-13-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-19-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-14-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-17-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-8-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-15-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-16-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-18-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/4796-2-0x000001CE0DC90000-0x000001CE0DD71000-memory.dmp

                  memory/5072-152-0x000001BC13C70000-0x000001BC13C71000-memory.dmp

                  memory/5072-153-0x000001BC13C70000-0x000001BC13C71000-memory.dmp

                  memory/5072-154-0x000001BC13C70000-0x000001BC13C71000-memory.dmp

                  memory/5072-164-0x000001BC13C70000-0x000001BC13C71000-memory.dmp

                  memory/5072-163-0x000001BC13C70000-0x000001BC13C71000-memory.dmp

                  memory/5072-162-0x000001BC13C70000-0x000001BC13C71000-memory.dmp

                  memory/5072-161-0x000001BC13C70000-0x000001BC13C71000-memory.dmp

                  memory/5072-160-0x000001BC13C70000-0x000001BC13C71000-memory.dmp

                  memory/5072-159-0x000001BC13C70000-0x000001BC13C71000-memory.dmp

                  memory/5072-158-0x000001BC13C70000-0x000001BC13C71000-memory.dmp