Analysis
- max time kernel
57s - max time network
58s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
08/08/2026, 17:24
General
- Target start.exe
- Size 515KB
- Sample260808-vy3lys1fma
- SHA256 22dae34c2c163a3a010dc06a6cad3cb451c527c0d18d6dfc3b960994cfef95b2
Malware Config
Signatures
- Family: Dracula, Samurai
Dracula aka Samurai is a stealer written in C#.
- Detects Dracula aka Samurai Stealer payload 1 IoCs
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- 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.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 4 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Looks up external IP address via web service 1 TTPs 6 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory 5 IoCs
- Drops file in Windows directory 7 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.
- Executes a command shell one-liner 1 TTPs 3 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- 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.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- 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 38 IoCs
- Suspicious use of AdjustPrivilegeToken 5 IoCs
- Suspicious use of WriteProcessMemory 10 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.
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\start.exe"C:\Users\Admin\AppData\Local\Temp\start.exe"1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\CMD.exe"CMD" netsh advfirewall firewall add rule name="eHIOZ.S/ZIvqZ?" dir=in action=allow program="C:\Windows\System32\xdwdDefender.exe" enable=yes & exit2⤵
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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 & exit2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\WAppCrashNvTew" /tr "C:\Windows\System32\xdwdDefender.exe" /RL HIGHEST3⤵
- Scheduled Task/Job: Scheduled Task
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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 & exit2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc minute /mo 30 /tn "Microsoft\MachineCore" /tr "C:\Windows\Web\xdwdMalwareDef.exe" /RL HIGHEST3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\System32\xdwdDefender.exe"C:\Windows\System32\xdwdDefender.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\xdwdDefender.exeC:\Windows\System32\xdwdDefender.exe1⤵
- Executes dropped EXE
- 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
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C:\Windows\System32\cmd.exe"cmd" /C chcp 65001 && netsh wlan show profiles | findstr All2⤵
- Executes a command shell one-liner
- System Network Configuration Discovery: Wi-Fi Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\chcp.comchcp 650013⤵
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C:\Windows\system32\netsh.exenetsh wlan show profiles3⤵
- Loads dropped DLL
- Event Triggered Execution: Netsh Helper DLL
- System Network Configuration Discovery: Wi-Fi Discovery
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\system32\findstr.exefindstr All3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\Web\xdwdMalwareDef.exeC:\Windows\Web\xdwdMalwareDef.exe1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Event Triggered Execution
2AppInit DLLs
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Event Triggered Execution
2AppInit DLLs
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
xdwdDefender.exe
xdwd.dll
memory/2096-8-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/2096-11-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/2096-4-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/2096-5-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/2096-6-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/2096-7-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/2096-1-0x00007FFC1769F000-0x00007FFC176A0000-memory.dmp
memory/2096-9-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/2096-10-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/2096-3-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/2096-12-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/2096-2-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/2096-0-0x00000000004B0000-0x0000000000538000-memory.dmp
memory/2096-62-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/2096-63-0x00007FFC17510000-0x00007FFC17EB4000-memory.dmp
memory/3748-66-0x000000001B810000-0x000000001B83A000-memory.dmp
memory/3748-67-0x000000001C5F0000-0x000000001C640000-memory.dmp