Overview

overview

10

Static

static

3

Radmin-VPN-Fix.exe

windows10-2004-x64

10

Radmin-VPN-Fix.exe

windows11-ltsc_2024-x64

10

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    07/08/2026, 15:00

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General

  • Target
    Radmin-VPN-Fix.exe
  • Size 518KB
  • Sample260807-sdnwysfp8s
  • SHA256 9f2f54e3b031776ff62b533576c6e30276d66185bcfa49e0683d9b2435e430d4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
collectiondefense_evasiondiscoveryexecutiondracula_stealerpersistenceprivilege_escalationransomwarespywarestealer

Malware Config

Signatures

  • Family: Dracula, Samurai

    Dracula aka Samurai is a stealer written in C#.

    stealerdracula_stealer
  • Detects Dracula aka Samurai Stealer payload 1 IoCs
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    persistenceprivilege_escalation
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 12 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Checks installed software on the system 1 TTPs

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

    discovery
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Looks up external IP address via web service 1 TTPs 7 IoCs

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

    discovery
  • Drops file in System32 directory 6 IoCs
  • Drops file in Windows directory 11 IoCs
  • 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.

    persistenceprivilege_escalation
  • Executes a command shell one-liner 1 TTPs 7 IoCs

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

    execution
  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 58 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 2 IoCs
    defense_evasion
  • Kills process with taskkill 1 IoCs
    defense_evasion
  • Modifies registry class 64 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 20 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.

    persistence
  • Uses Volume Shadow Copy WMI provider

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

    ransomware
  • Uses Volume Shadow Copy service COM API

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

    ransomware
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Radmin-VPN-Fix.exe
    "C:\Users\Admin\AppData\Local\Temp\Radmin-VPN-Fix.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3428
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" netsh advfirewall firewall add rule name="= o])OJW)o7_)S" dir=in action=allow program="C:\Windows\System32\xdwdDefender.exe" enable=yes & exit
      2⤵
        PID:4688
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\WAppCrashNvTew" /tr "C:\Windows\System32\xdwdDefender.exe" /RL HIGHEST & exit
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:2368
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\WAppCrashNvTew" /tr "C:\Windows\System32\xdwdDefender.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3044
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "Microsoft\MachineCore" /tr "C:\Windows\Web\xdwdMalwareDef.exe" /RL HIGHEST & exit
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:3908
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc minute /mo 30 /tn "Microsoft\MachineCore" /tr "C:\Windows\Web\xdwdMalwareDef.exe" /RL HIGHEST
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4020
      • C:\Windows\System32\xdwdDefender.exe
        "C:\Windows\System32\xdwdDefender.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:4360
        • C:\Windows\System32\cmd.exe
          "cmd" /C chcp 65001 && netsh wlan show profiles | findstr All
          3⤵
          • Executes a command shell one-liner
          • System Network Configuration Discovery: Wi-Fi Discovery
          • Suspicious use of WriteProcessMemory
          PID:2280
          • C:\Windows\system32\chcp.com
            chcp 65001
            4⤵
              PID:864
            • C:\Windows\system32\netsh.exe
              netsh wlan show profiles
              4⤵
              • Loads dropped DLL
              • Event Triggered Execution: Netsh Helper DLL
              • System Network Configuration Discovery: Wi-Fi Discovery
              • Suspicious behavior: EnumeratesProcesses
              PID:4600
            • C:\Windows\system32\findstr.exe
              findstr All
              4⤵
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              PID:3992
          • C:\Windows\System32\CMD.exe
            "CMD" /c schtasks /deleTe /F /Tn "Microsoft\Windows\WAppCrashNvTew" & exit& exit
            3⤵
            • Executes a command shell one-liner
            • Suspicious use of WriteProcessMemory
            PID:1172
            • C:\Windows\system32\schtasks.exe
              schtasks /deleTe /F /Tn "Microsoft\Windows\WAppCrashNvTew"
              4⤵
                PID:4128
            • C:\Windows\System32\CMD.exe
              "CMD" /c schtasks /deleTe /F /Tn "Microsoft\MachineCore" & exit& exit
              3⤵
              • Executes a command shell one-liner
              • Suspicious use of WriteProcessMemory
              PID:2896
              • C:\Windows\system32\schtasks.exe
                schtasks /deleTe /F /Tn "Microsoft\MachineCore"
                4⤵
                  PID:1688
              • C:\Windows\System32\cmd.exe
                "cmd" /C taskkill /im explorer.exe /f && TimeOut 2 && start explorer.exe
                3⤵
                • Executes a command shell one-liner
                • Suspicious use of WriteProcessMemory
                PID:4912
                • C:\Windows\system32\taskkill.exe
                  taskkill /im explorer.exe /f
                  4⤵
                  • Kills process with taskkill
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1800
                • C:\Windows\system32\timeout.exe
                  TimeOut 2
                  4⤵
                  • Delays execution with timeout.exe
                  PID:892
                • C:\Windows\explorer.exe
                  explorer.exe
                  4⤵
                  • Boot or Logon Autostart Execution: Active Setup
                  • Enumerates connected drives
                  • Checks SCSI registry key(s)
                  • Modifies registry class
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of FindShellTrayWindow
                  • Suspicious use of SendNotifyMessage
                  • Suspicious use of SetWindowsHookEx
                  PID:3308
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6ACD.tmp.bat""
                3⤵
                • Executes a command shell one-liner
                • Suspicious use of WriteProcessMemory
                PID:4636
                • C:\Windows\system32\timeout.exe
                  timeout 10 "C:\Windows\System32"DEL "xdwdDefender.exe" /f /qCD "C:\Windows\Web"DEL "xdwdMalwareDef.exe" /f /qCD "C:\Windows"DEL "xdwd.dll" /f /qCD "C:\Users\Admin\AppData\Local\Temp"DEL "tmp6ACD.tmp.bat" /f /q
                  4⤵
                  • Delays execution with timeout.exe
                  PID:564
          • C:\Windows\System32\xdwdDefender.exe
            C:\Windows\System32\xdwdDefender.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Drops file in System32 directory
            • Drops file in Windows directory
            • Suspicious use of AdjustPrivilegeToken
            PID:1344
          • C:\Windows\Web\xdwdMalwareDef.exe
            C:\Windows\Web\xdwdMalwareDef.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Drops file in System32 directory
            • Drops file in Windows directory
            • Suspicious use of AdjustPrivilegeToken
            PID:4716
          • C:\Windows\System32\xdwdDefender.exe
            C:\Windows\System32\xdwdDefender.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Drops file in System32 directory
            • Drops file in Windows directory
            • Suspicious use of AdjustPrivilegeToken
            PID:1028
          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
            1⤵
            • Suspicious use of SetWindowsHookEx
            PID:4708
          • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
            "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
            1⤵
            • Modifies registry class
            • Suspicious use of SetWindowsHookEx
            PID:2248

          Network

                MITRE ATT&CK Enterprise v16

                Reconnaissance

                Resource Development

                Initial Access

                Execution

                Command and Scripting Interpreter

                1
                T1059

                Windows Command Shell

                1
                T1059.003

                Scheduled Task/Job

                1
                T1053

                Scheduled Task

                1
                T1053.005

                Persistence

                Boot or Logon Autostart Execution

                2
                T1547

                Active Setup

                1
                T1547.014

                Winlogon Helper DLL

                1
                T1547.004

                Event Triggered Execution

                2
                T1546

                AppInit DLLs

                1
                T1546.010

                Netsh Helper DLL

                1
                T1546.007

                Scheduled Task/Job

                1
                T1053

                Scheduled Task

                1
                T1053.005

                Privilege Escalation

                Boot or Logon Autostart Execution

                2
                T1547

                Active Setup

                1
                T1547.014

                Winlogon Helper DLL

                1
                T1547.004

                Event Triggered Execution

                2
                T1546

                AppInit DLLs

                1
                T1546.010

                Netsh Helper DLL

                1
                T1546.007

                Scheduled Task/Job

                1
                T1053

                Scheduled Task

                1
                T1053.005

                Defense Evasion

                Modify Registry

                2
                T1112

                Credential Access

                Credentials from Password Stores

                1
                T1555

                Credentials from Web Browsers

                1
                T1555.003

                Unsecured Credentials

                1
                T1552

                Credentials In Files

                1
                T1552.001

                Discovery

                Peripheral Device Discovery

                2
                T1120

                Query Registry

                6
                T1012

                System Information Discovery

                5
                T1082

                System Network Configuration Discovery

                2
                T1016

                Internet Connection Discovery

                1
                T1016.001

                Wi-Fi Discovery

                1
                T1016.002

                Lateral Movement

                Collection

                Data from Local System

                1
                T1005

                Email Collection

                1
                T1114

                Command and Control

                Exfiltration

                Impact

                Replay Monitor

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                Downloads

                xdwdDefender.exe.log
                • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\xdwdDefender.exe.log
                • Size 1KB
                • SHA256 d049789c187b2f58c900eab10205bc037740dca8640ab40c314790fefaab66ff
                • MD5 SHA1 SHA512 TLSH
                Submit Download

                AppCache134305884791725404.txt
                • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache134305884791725404.txt
                • Size 78KB
                • SHA256 22abf81dfc1dd441cbf09c7c3c046b571bfe5ef66736a282bdc54234d8f8b496
                • MD5 SHA1 SHA512 SSDEEP TLSH
                Submit Download

                tmp6ACD.tmp.bat
                • Path C:\Users\Admin\AppData\Local\Temp\tmp6ACD.tmp.bat
                • Size 217B
                • SHA256 861fe1640978260ef165843a5d50528dcaa6f0892c3ae1cca416a3ebc061caf2
                • MD5 SHA1 SHA512 TLSH
                Submit Download

                tmp6B14.tmp.dat
                • Path C:\Users\Admin\AppData\Local\Temp\tmp6B14.tmp.dat
                • Size 224KB
                • SHA256 d781b56555e65272ef4019de8706cba5042fb7afcf0f6e2ca56183ca9567ba8e
                • MD5 SHA1 SHA512 SSDEEP TLSH
                Submit Download

                tmp6B15.tmp.dat
                • Path C:\Users\Admin\AppData\Local\Temp\tmp6B15.tmp.dat
                • Size 138KB
                • SHA256 442f386467789b16413f7958f769f14c38679eb213e8744201024e01b68b2a3c
                • MD5 SHA1 SHA512 SSDEEP TLSH
                Submit Download

                xdwdDefender.exe
                • Path C:\Windows\System32\xdwdDefender.exe
                • Size 518KB
                • SHA256 9f2f54e3b031776ff62b533576c6e30276d66185bcfa49e0683d9b2435e430d4
                • MD5 SHA1 SHA512 SSDEEP TLSH
                Submit Download

                xdwd.dll
                • Path C:\Windows\xdwd.dll
                • Size 136KB
                • SHA256 35c8d022e1d917f1aabdceae98097ccc072161b302f84c768ca63e4b32ac2b66
                • MD5 SHA1 SHA512 SSDEEP TLSH
                Submit Download

                memory/2248-170-0x00000273C9D40000-0x00000273C9E40000-memory.dmp
                Download

                memory/2248-175-0x00000273CAB50000-0x00000273CAB70000-memory.dmp
                Download

                memory/2248-188-0x00000273CAB10000-0x00000273CAB30000-memory.dmp
                Download

                memory/2248-207-0x00000273CB120000-0x00000273CB140000-memory.dmp
                Download

                memory/3308-206-0x00000000028A0000-0x00000000028A1000-memory.dmp
                Download

                memory/3428-0-0x0000000000B10000-0x0000000000B96000-memory.dmp
                Download

                memory/3428-1-0x000000001BB40000-0x000000001BB50000-memory.dmp
                Download

                memory/4360-122-0x000000001BF80000-0x000000001BFAA000-memory.dmp
                Download

                memory/4360-123-0x000000001CB50000-0x000000001CBA0000-memory.dmp
                Download