Overview

overview

10

Static

static

10

nevirus.exe

windows10-2004-x64

10

nevirus.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    109s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    26/10/2026, 20:04

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General

  • Target
    nevirus.exe
  • Size 576KB
  • Sample261026-ytabdsgt2t
  • SHA256 39e67b678adbf0019fdb5901bf004ced25a00216cfc808b5fee3de22e932eab3
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwaresheet_oltgluyntjddefense_evasiondiscoveryexecutionsheetratpersistenceprivilege_escalationransomwarespywaretrojan

Malware Config

Extracted

Family

  • sheetrat

Version

  • 2.6

Campaign

  • Sheet_oltgluyntjd

C2

  • openport.pw:27884

Signatures

  • Family: Sheetrat, NonEuclid rat

    Sheetrat aka NonEuclid RAT is a trojan written in C#.

    trojansheetrat
  • Detects Sheetrat obfuscated V1.8 and higher 1 IoCs

    Sheetrat aka NonEuclid RAT is a trojan written in C#.

  • Detects Sheetrat obfuscated version 1 IoCs
  • Modifies WinLogon for persistence 2 TTPs 2 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
  • Loads dropped DLL 11 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 10 IoCs

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

    execution
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

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

  • Delays execution with timeout.exe 2 IoCs
    defense_evasion
  • Kills process with taskkill 2 IoCs
    defense_evasion
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs

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

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 23 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\nevirus.exe
    "C:\Users\Admin\AppData\Local\Temp\nevirus.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4156
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" /C SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Microsoft Word" /tr "C:\Program Files\xdwdFileZilla.exe" & exit
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5416
      • C:\Windows\system32\schtasks.exe
        SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Microsoft Word" /tr "C:\Program Files\xdwdFileZilla.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4072
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" /c SchTaSKs /create /f /sc minute /mo -1 /tn "Microsoft Cortana" /tr "C:\Program Files\xdwdFileZilla.exe" /RL HIGHEST & exit
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:4616
      • C:\Windows\system32\schtasks.exe
        SchTaSKs /create /f /sc minute /mo -1 /tn "Microsoft Cortana" /tr "C:\Program Files\xdwdFileZilla.exe" /RL HIGHEST
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4668
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" /c SchTaSKs /create /f /sc minute /mo 5 /tn "Microsoft Power BI" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\xdwdSage CRM.exe" /RL HIGHEST & exit
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5524
      • C:\Windows\system32\schtasks.exe
        SchTaSKs /create /f /sc minute /mo 5 /tn "Microsoft Power BI" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\xdwdSage CRM.exe" /RL HIGHEST
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1120
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" /c SchTaSKs /create /f /sc minute /mo -1 /tn "Microsoft Cortana" /tr "C:\Program Files\xdwdFileZilla.exe" /RL HIGHEST & exit
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:3976
      • C:\Windows\system32\schtasks.exe
        SchTaSKs /create /f /sc minute /mo -1 /tn "Microsoft Cortana" /tr "C:\Program Files\xdwdFileZilla.exe" /RL HIGHEST
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5196
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" /c SchTaSKs /create /f /sc minute /mo -1 /tn "Microsoft Cortana" /tr "C:\Program Files\xdwdFileZilla.exe" /RL HIGHEST & exit
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:1132
      • C:\Windows\system32\schtasks.exe
        SchTaSKs /create /f /sc minute /mo -1 /tn "Microsoft Cortana" /tr "C:\Program Files\xdwdFileZilla.exe" /RL HIGHEST
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5072
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" /c SchTaSKs /create /f /sc minute /mo -1 /tn "Microsoft Cortana" /tr "C:\Program Files\xdwdFileZilla.exe" /RL HIGHEST & exit
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:1852
      • C:\Windows\system32\schtasks.exe
        SchTaSKs /create /f /sc minute /mo -1 /tn "Microsoft Cortana" /tr "C:\Program Files\xdwdFileZilla.exe" /RL HIGHEST
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2464
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtASks /deLeTe /F /Tn "Microsoft Word" & exit
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:4332
      • C:\Windows\system32\schtasks.exe
        schtASks /deLeTe /F /Tn "Microsoft Word"
        3⤵
          PID:1752
      • C:\Windows\SYSTEM32\CMD.exe
        "CMD" /C taskkill /im explorer.exe /f
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:5600
        • C:\Windows\system32\taskkill.exe
          taskkill /im explorer.exe /f
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4300
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c schtASks /deLeTe /F /Tn "Microsoft Power BI" & exit
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:252
        • C:\Windows\system32\schtasks.exe
          schtASks /deLeTe /F /Tn "Microsoft Power BI"
          3⤵
            PID:5364
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpDFD7.tmp.bat""
          2⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:4216
          • C:\Windows\system32\timeout.exe
            timeout 5
            3⤵
            • Delays execution with timeout.exe
            PID:4180
          • C:\Windows\explorer.exe
            explorer.exe
            3⤵
            • Boot or Logon Autostart Execution: Active Setup
            • Enumerates connected drives
            • Checks SCSI registry key(s)
            • Modifies Internet Explorer settings
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            • Suspicious use of SetWindowsHookEx
            PID:5124
          • C:\Windows\system32\taskkill.exe
            taskkill /im xdwdFileZilla.exe /f
            3⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:1308
          • C:\Windows\system32\timeout.exe
            timeout 3
            3⤵
            • Delays execution with timeout.exe
            PID:1648
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k GPSvcGroup
        1⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:1096
      • C:\Windows\system32\wbem\WmiApSrv.exe
        C:\Windows\system32\wbem\WmiApSrv.exe
        1⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:2580
      • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
        "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:1100
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:4412

      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

            1
            T1546

            AppInit DLLs

            1
            T1546.010

            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

            1
            T1546

            AppInit DLLs

            1
            T1546.010

            Scheduled Task/Job

            1
            T1053

            Scheduled Task

            1
            T1053.005

            Defense Evasion

            Modify Registry

            3
            T1112

            Credential Access

            Discovery

            Peripheral Device Discovery

            2
            T1120

            Query Registry

            3
            T1012

            System Information Discovery

            3
            T1082

            System Network Configuration Discovery

            1
            T1016

            Lateral Movement

            Collection

            Command and Control

            Exfiltration

            Impact

            Replay Monitor

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            Downloads

            prep_Activatable Class_Hermes_perf.cache
            • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
            • Size 603B
            • SHA256 b346273b0f3e13afaa9f07d97248343c45a667a5e097d1198a449a4de187aebb
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            prep_Activatable Class_Hermes_perf.cache
            • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
            • Size 599B
            • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            tmpDFD7.tmp.bat
            • Path C:\Users\Admin\AppData\Local\Temp\tmpDFD7.tmp.bat
            • Size 220B
            • SHA256 78947bc7faf50a7103a94e6656e299882c6bd840cb6db87f11b71248f6fd7946
            • MD5 SHA1 SHA512 TLSH
            Submit Download

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

            memory/1100-170-0x0000024F006C0000-0x0000024F007C0000-memory.dmp
            Download

            memory/1100-171-0x0000024F006C0000-0x0000024F007C0000-memory.dmp
            Download

            memory/1100-182-0x0000024F01EF0000-0x0000024F01F10000-memory.dmp
            Download

            memory/1100-201-0x0000024F04150000-0x0000024F04170000-memory.dmp
            Download

            memory/1100-183-0x0000024F14350000-0x0000024F14450000-memory.dmp
            Download

            memory/1100-215-0x0000024F146D0000-0x0000024F146F0000-memory.dmp
            Download

            memory/1100-169-0x0000024F006C0000-0x0000024F007C0000-memory.dmp
            Download

            memory/4156-129-0x00007FFA37040000-0x00007FFA379E4000-memory.dmp
            Download

            memory/4156-2-0x00007FFA37040000-0x00007FFA379E4000-memory.dmp
            Download

            memory/4156-1-0x0000000000660000-0x00000000006F6000-memory.dmp
            Download

            memory/4156-149-0x00007FFA37040000-0x00007FFA379E4000-memory.dmp
            Download

            memory/4156-0-0x00007FFA371CF000-0x00007FFA371D0000-memory.dmp
            Download

            memory/4156-3-0x00007FFA37040000-0x00007FFA379E4000-memory.dmp
            Download

            memory/4156-5-0x00007FFA37040000-0x00007FFA379E4000-memory.dmp
            Download

            memory/4156-4-0x00007FFA37040000-0x00007FFA379E4000-memory.dmp
            Download

            memory/4156-38-0x00007FFA37040000-0x00007FFA379E4000-memory.dmp
            Download

            memory/4156-6-0x00007FFA37040000-0x00007FFA379E4000-memory.dmp
            Download

            memory/5124-325-0x000000000E230000-0x000000000E2DE000-memory.dmp
            Download

            memory/5124-326-0x000000000F420000-0x000000000F5EA000-memory.dmp
            Download