Overview

overview

10

Static

static

3

lasttry.exe

windows10-2004-x64

10

lasttry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    21/06/2026, 23:08

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General

  • Target
    lasttry.exe
  • Size 8.6MB
  • Sample260621-24v8dsfz3j
  • SHA256 f1ff6ec9082da333b2f430ac89e9124ccbea33057098d2a6318cb24a88567be0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwaredefense_evasiondiscoveryexecutionremus_stealerpersistenceransomwarespywarestealerthemidatrojan

Malware Config

Extracted

Family

  • remus_stealer

C2

  • http://anglhw.xyz:4964

  • http://myrtler.biz:9549

  • http://carogra.biz:4219

Signatures

  • Family: Remus

    Remus is a stealer written in C++.

    stealerremus_stealer
  • Detects Remus stealer 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
    defense_evasion
  • 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
  • Downloads MZ/PE file 1 IoCs
  • Checks BIOS information in registry 2 TTPs 6 IoCs

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

  • Executes dropped EXE 3 IoCs
  • 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
  • Themida packer 11 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • 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
  • Checks whether UAC is enabled 1 TTPs 3 IoCs
    defense_evasiontrojan
  • 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 IoCs

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

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • Enumerates physical storage devices 1 TTPs

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

  • 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
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 3 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\lasttry.exe
    "C:\Users\Admin\AppData\Local\Temp\lasttry.exe"
    1⤵
    • Downloads MZ/PE file
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4120
    • C:\Users\Admin\AppData\Local\Temp\8Bw5mXJXZ0iVTem565eeoaJHa23a62.exe
      "C:\Users\Admin\AppData\Local\Temp\8Bw5mXJXZ0iVTem565eeoaJHa23a62.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of WriteProcessMemory
      PID:4812
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /tn "regid.1991-06.com.microsoftOracle.exe" /tr "C:\ProgramData\MenuMicrosoft\regid.1991-06.com.microsoftOracle.exe" /sc MINUTE
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2764
  • C:\ProgramData\MenuMicrosoft\regid.1991-06.com.microsoftOracle.exe
    C:\ProgramData\MenuMicrosoft\regid.1991-06.com.microsoftOracle.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Checks whether UAC is enabled
    PID:3424
  • C:\ProgramData\MenuMicrosoft\regid.1991-06.com.microsoftOracle.exe
    "C:\ProgramData\MenuMicrosoft\regid.1991-06.com.microsoftOracle.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Checks whether UAC is enabled
    PID:5228
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:404
    • 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:3500
  • 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:3524
  • 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:5244

Network

        MITRE ATT&CK Enterprise v16

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Scheduled Task/Job

        1
        T1053

        Scheduled Task

        1
        T1053.005

        Persistence

        Boot or Logon Autostart Execution

        1
        T1547

        Active Setup

        1
        T1547.014

        Scheduled Task/Job

        1
        T1053

        Scheduled Task

        1
        T1053.005

        Privilege Escalation

        Boot or Logon Autostart Execution

        1
        T1547

        Active Setup

        1
        T1547.014

        Scheduled Task/Job

        1
        T1053

        Scheduled Task

        1
        T1053.005

        Defense Evasion

        Modify Registry

        2
        T1112

        Virtualization/Sandbox Evasion

        1
        T1497

        Credential Access

        Credentials from Password Stores

        1
        T1555

        Credentials from Web Browsers

        1
        T1555.003

        Unsecured Credentials

        3
        T1552

        Credentials In Files

        3
        T1552.001

        Discovery

        Browser Information Discovery

        1
        T1217

        Peripheral Device Discovery

        2
        T1120

        Query Registry

        6
        T1012

        System Information Discovery

        5
        T1082

        Virtualization/Sandbox Evasion

        1
        T1497

        Lateral Movement

        Collection

        Data from Local System

        3
        T1005

        Command and Control

        Exfiltration

        Impact

        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

        8Bw5mXJXZ0iVTem565eeoaJHa23a62.exe
        • Path C:\Users\Admin\AppData\Local\Temp\8Bw5mXJXZ0iVTem565eeoaJHa23a62.exe
        • Size 3.7MB
        • SHA256 722eb92ee0f6f341ea6d713c812f3a4c4986314d111533c8d1419a9807854062
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/3424-15-0x0000000140000000-0x00000001409B3000-memory.dmp
        Download

        memory/3424-14-0x0000000140000000-0x00000001409B3000-memory.dmp
        Download

        memory/3424-16-0x0000000140000000-0x00000001409B3000-memory.dmp
        Download

        memory/3524-64-0x0000021F02C90000-0x0000021F02CB0000-memory.dmp
        Download

        memory/3524-53-0x0000021F02E90000-0x0000021F02F90000-memory.dmp
        Download

        memory/3524-51-0x0000021F02930000-0x0000021F02950000-memory.dmp
        Download

        memory/3524-86-0x0000021F14210000-0x0000021F14230000-memory.dmp
        Download

        memory/3524-41-0x0000021F001E0000-0x0000021F002E0000-memory.dmp
        Download

        memory/4120-1-0x0000000140000000-0x000000014003B000-memory.dmp
        Download

        memory/4120-0-0x0000000140000000-0x000000014003B000-memory.dmp
        Download

        memory/4812-7-0x0000000140000000-0x00000001409B3000-memory.dmp
        Download

        memory/4812-6-0x0000000140000000-0x00000001409B3000-memory.dmp
        Download

        memory/4812-11-0x0000000140000000-0x00000001409B3000-memory.dmp
        Download

        memory/4812-8-0x0000000140000000-0x00000001409B3000-memory.dmp
        Download

        memory/5228-19-0x0000000140000000-0x00000001409B3000-memory.dmp
        Download

        memory/5228-18-0x0000000140000000-0x00000001409B3000-memory.dmp
        Download

        memory/5228-210-0x0000000140000000-0x00000001409B3000-memory.dmp
        Download