Overview

overview

10

Static

static

3

iuyuh.exe

windows10-2004-x64

10

iuyuh.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/06/2026, 18:19

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    iuyuh.exe
  • Size 8.6MB
  • Sample260620-wym2yahz2v
  • SHA256 dd8be6afd4ce72ace57a3a5c197301ecfc7453af937b0c511d50ddf27f5300e7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarediscoveryremus_stealerpersistenceransomwarespywarestealer

Malware Config

Extracted

Family

  • remus_stealer

C2

  • http://myrtler.biz:9549

  • http://carogra.biz:4219

  • http://youngel.biz:8768

Signatures

  • Family: Remus

    Remus is a stealer written in C++.

    stealerremus_stealer
  • Detects Remus stealer 1 IoCs
  • 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
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • 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.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • 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
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 39 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.

    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\iuyuh.exe
    "C:\Users\Admin\AppData\Local\Temp\iuyuh.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    PID:4168
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:912
    • 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:3640
  • 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:3236
  • 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:3024

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 599B
        • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        250m4k2eLs28BBw9c17y1DVg4.exe
        • Path C:\Users\Admin\AppData\Local\Temp\250m4k2eLs28BBw9c17y1DVg4.exe
        • Size 280B
        • SHA256 7bbd362e70917321f5e4ffd74453abeb7011a48f6f331cd02c39b6f5760227fe
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/3024-190-0x00000176AD000000-0x00000176AD691000-memory.dmp
        Download

        memory/3024-196-0x00000176AD000000-0x00000176AD691000-memory.dmp
        Download

        memory/3236-5-0x000001E3001E0000-0x000001E3002E0000-memory.dmp
        Download

        memory/3236-49-0x000001E3042A0000-0x000001E3042C0000-memory.dmp
        Download

        memory/3236-21-0x000001E302E90000-0x000001E302F90000-memory.dmp
        Download

        memory/3236-19-0x000001E302930000-0x000001E302950000-memory.dmp
        Download

        memory/3236-35-0x000001E302C90000-0x000001E302CB0000-memory.dmp
        Download

        memory/4168-0-0x0000000140000000-0x000000014003B000-memory.dmp
        Download

        memory/4168-1-0x0000000140000000-0x000000014003B000-memory.dmp
        Download