Overview

overview

10

Static

static

10

2026-09-11...er.exe

windows10-2004-x64

10

2026-09-11...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/09/2026, 12:51

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General

  • Target
    2026-09-11_fc1b4939a7cf2196374d4603c41a5eea_amadey_elex_luca-stealer_njrat_smoke-loader.exe
  • Size 1.9MB
  • Sample260911-p3m46stbpd
  • SHA256 8511d5867d5713836d8ca71f990224b6e6a4af6d0d399dc05faaf9151b2c5d32
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
backdoorcredential_accessdiscoveryexpirospywarestealer

Malware Config

Signatures

  • Family: Expiro, m0yv

    Expiro aka m0yv is a multi-functional backdoor written in C++.

    backdoorexpiro
  • Expiro payload 1 IoCs
    backdoor
  • Detects executables packed with VMProtect. 20 IoCs
  • Executes dropped EXE 5 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

    credential_accessstealer
  • Drops Chrome extension 1 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops file in System32 directory 58 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-11_fc1b4939a7cf2196374d4603c41a5eea_amadey_elex_luca-stealer_njrat_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-11_fc1b4939a7cf2196374d4603c41a5eea_amadey_elex_luca-stealer_njrat_smoke-loader.exe"
    1⤵
    • Drops Chrome extension
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4352
  • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
    "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
    1⤵
    • Executes dropped EXE
    PID:2756
  • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"
    1⤵
    • Executes dropped EXE
    PID:4636
  • C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
    "C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe"
    1⤵
    • Executes dropped EXE
    PID:4272
  • \??\c:\Program Files\Common Files\Microsoft Shared\Source Engine\OSE.EXE
    "c:\Program Files\Common Files\Microsoft Shared\Source Engine\OSE.EXE"
    1⤵
    • Executes dropped EXE
    PID:4964
  • C:\Windows\System32\OpenSSH\ssh-agent.exe
    C:\Windows\System32\OpenSSH\ssh-agent.exe
    1⤵
    • Executes dropped EXE
    PID:1524

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        elevation_service.exe
        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
        • Size 2.7MB
        • SHA256 67d8d454cbd7c12e5f5b10e65f305a043ce1f180ecc113a1d25d987d60e15dd2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        maintenanceservice.exe
        • Path C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
        • Size 760KB
        • SHA256 40c71b4acdebd7a1c77fbb0504c9f85ec5d6ec38f104912f4744c743e1a59a41
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        OSE.EXE
        • Path C:\Program Files\Common Files\microsoft shared\Source Engine\OSE.EXE
        • Size 740KB
        • SHA256 0200a2a6aee4332f35730323c30e1cf6de1c0b9d7b4a701ff93c88cac9c9624d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        setup.vir
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.vir
        • Size 6.5MB
        • SHA256 ca932ec52e3a557808616abf11c282fd980721ea8dcf45862e3a536b2ac5654d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        elevation_service.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
        • Size 2.7MB
        • SHA256 3098b9c1422a3faaeb119eb867ab32ac6d669f67ac3bcd0d09ac527051ba1f36
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ssh-agent.exe
        • Path C:\Windows\System32\OpenSSH\ssh-agent.exe
        • Size 1.0MB
        • SHA256 3457289dfff6d92e30271e905d0ab2273e94fbe7f4ce8c48187200d0f8016543
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1524-46-0x0000000140000000-0x0000000140277000-memory.dmp
        Download

        memory/1524-108-0x0000000140000000-0x0000000140277000-memory.dmp
        Download

        memory/2756-9-0x0000000140000000-0x0000000140422000-memory.dmp
        Download

        memory/2756-88-0x0000000140000000-0x0000000140422000-memory.dmp
        Download

        memory/2756-97-0x0000000140000000-0x0000000140422000-memory.dmp
        Download

        memory/4272-33-0x0000000140000000-0x000000014020E000-memory.dmp
        Download

        memory/4272-19-0x0000000140000000-0x000000014020E000-memory.dmp
        Download

        memory/4352-0-0x0000000000400000-0x00000000007B0000-memory.dmp
        Download

        memory/4352-1-0x0000000000400000-0x00000000007B0000-memory.dmp
        Download

        memory/4636-96-0x0000000140000000-0x000000014040D000-memory.dmp
        Download

        memory/4636-89-0x0000000140000000-0x000000014040D000-memory.dmp
        Download

        memory/4636-14-0x0000000140000000-0x000000014040D000-memory.dmp
        Download

        memory/4964-104-0x0000000140000000-0x0000000140208000-memory.dmp
        Download

        memory/4964-35-0x0000000140000000-0x0000000140208000-memory.dmp
        Download