Analysis

  • user interaction
    yes
  • max time kernel
    0s
  • max time network
    19s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    24/10/2026, 19:20

Errors

Reason
Machine shutdown

General

  • Target
    Viper.exe
  • Size 10KB
  • Sample261024-x2bnraff34
  • SHA256 d11cb01e922f3ea7721d08dde9eff5c2779367627e2db18b8edbb96a415a293a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10

Malware Config

Signatures

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

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

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Viper.exe
    "C:\Users\Admin\AppData\Local\Temp\Viper.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5000
    • C:\Windows\SYSTEM32\reg.exe
      "reg" delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion /f
      2⤵
        PID:2280
      • C:\Windows\SYSTEM32\reg.exe
        "reg" delete HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet /f
        2⤵
          PID:2812
        • C:\Windows\SYSTEM32\reg.exe
          "reg" delete HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001 /f
          2⤵
            PID:4640
          • C:\Windows\SYSTEM32\reg.exe
            "reg" delete HKEY_CURRENT_USER\Software /f
            2⤵
              PID:4680
            • C:\Windows\SYSTEM32\reg.exe
              "reg" delete HKEY_LOCAL_MACHINE\SOFTWARE\Classes /f
              2⤵
                PID:552
              • C:\Windows\SYSTEM32\reg.exe
                "reg" delete HKEY_LOCAL_MACHINE\SYSTEM\Setup /f
                2⤵
                  PID:4956
                • C:\Windows\SYSTEM32\reg.exe
                  "reg" delete HKEY_LOCAL_MACHINE\SYSTEM\DeviceMapper /f
                  2⤵
                    PID:1452
                  • C:\Windows\SYSTEM32\reg.exe
                    "reg" delete HKEY_LOCAL_MACHINE\SOFTWARE\Policies /f
                    2⤵
                      PID:1756
                    • C:\Windows\SYSTEM32\reg.exe
                      "reg" delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT /f
                      2⤵
                        PID:4932
                      • C:\Windows\SYSTEM32\reg.exe
                        "reg" delete HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services /f
                        2⤵
                          PID:4588
                        • C:\Windows\SYSTEM32\cmd.exe
                          "cmd" /c echo FFFF > C:\BIOS_CHK.dat
                          2⤵
                          • Executes a command shell one-liner
                          PID:4744

                      Network

                            MITRE ATT&CK Enterprise v16

                            Replay Monitor

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                            Downloads

                            memory/5000-0-0x0000000000600000-0x0000000000608000-memory.dmp

                            memory/5000-1-0x000000001B330000-0x000000001B340000-memory.dmp