Analysis

  • max time kernel
    121s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/07/2026, 13:24

General

  • Target
    UKruX6p3cwC5URbt.exe
  • Size 574KB
  • Sample260702-qnnylact2k
  • SHA256 28bca5eac256287936d00316985e93a3412c27f8deb58c96c43dddfc4fa5dd90
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • sheetrat

Version
  • 1.8

Attributes
  • localhost

    127.0.0.1:7777

Signatures

  • Family: Sheetrat, NonEuclid rat

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

  • Detects Sheetrat obfuscated V1.8 and higher 1 IoCs

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

  • 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.

  • Enumerates connected drives 3 TTPs 2 IoCs

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

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

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 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 WMI provider

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

  • 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\UKruX6p3cwC5URbt.exe
    "C:\Users\Admin\AppData\Local\Temp\UKruX6p3cwC5URbt.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4480
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2776
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • 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:5592
  • 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:1980
  • 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:2608

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        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 607B
        • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
        • MD5 SHA1 SHA512 TLSH

        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

        memory/1980-83-0x00000170942C0000-0x00000170942E0000-memory.dmp

        memory/1980-50-0x0000017083930000-0x0000017083950000-memory.dmp

        memory/1980-51-0x0000017083D50000-0x0000017083E50000-memory.dmp

        memory/1980-62-0x0000017083D10000-0x0000017083D30000-memory.dmp

        memory/1980-36-0x00000170801E0000-0x00000170802E0000-memory.dmp

        memory/1980-37-0x00000170801E0000-0x00000170802E0000-memory.dmp

        memory/4480-5-0x00007FFBCB1A0000-0x00007FFBCBB44000-memory.dmp

        memory/4480-6-0x00007FFBCB1A0000-0x00007FFBCBB44000-memory.dmp

        memory/4480-10-0x000000001B540000-0x000000001B630000-memory.dmp

        memory/4480-11-0x00007FFBCB1A0000-0x00007FFBCBB44000-memory.dmp

        memory/4480-12-0x00007FFBCB1A0000-0x00007FFBCBB44000-memory.dmp

        memory/4480-8-0x00007FFBCB1A0000-0x00007FFBCBB44000-memory.dmp

        memory/4480-7-0x00007FFBCB1A0000-0x00007FFBCBB44000-memory.dmp

        memory/4480-9-0x00007FFBCB1A0000-0x00007FFBCBB44000-memory.dmp

        memory/4480-1-0x00000000004D0000-0x0000000000566000-memory.dmp

        memory/4480-4-0x00007FFBCB1A0000-0x00007FFBCBB44000-memory.dmp

        memory/4480-3-0x00007FFBCB1A0000-0x00007FFBCBB44000-memory.dmp

        memory/4480-2-0x00007FFBCB1A0000-0x00007FFBCBB44000-memory.dmp

        memory/4480-0-0x00007FFBCB32F000-0x00007FFBCB330000-memory.dmp

        memory/5592-203-0x000000000F520000-0x000000000F5A0000-memory.dmp