Analysis

  • max time kernel
    150s
  • max time network
    134s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/09/2026, 10:15

General

  • Target
    2026-09-01_8485f8f0dd47aa3479f2a05711c58a59_amadey_elex_luca-stealer_njrat_smoke-loader.exe
  • Size 2.0MB
  • Sample260902-mapq7avscx
  • SHA256 9cef49215fc2d4daa2c420fffb46b6f9c057253a7258ab8760d50ae8ccaedc03
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Expiro, m0yv

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

  • Expiro payload 1 IoCs
  • Detects executables packed with VMProtect. 24 IoCs
  • Executes dropped EXE 7 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-01_8485f8f0dd47aa3479f2a05711c58a59_amadey_elex_luca-stealer_njrat_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-01_8485f8f0dd47aa3479f2a05711c58a59_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:6976
  • 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:6596
  • 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:6544
  • C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
    "C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe"
    1⤵
    • Executes dropped EXE
    PID:6652
  • \??\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:6928
  • C:\Windows\System32\OpenSSH\ssh-agent.exe
    C:\Windows\System32\OpenSSH\ssh-agent.exe
    1⤵
    • Executes dropped EXE
    PID:2832
  • C:\Windows\system32\AgentService.exe
    C:\Windows\system32\AgentService.exe
    1⤵
    • Executes dropped EXE
    PID:3640
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Executes dropped EXE
    PID:6444

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 4b3e00c0ce7f9cab8a8ebee6feda79089c864957f19a2e1a23aea5feacc116cc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        maintenanceservice.exe

        • Path C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
        • Size 768KB
        • SHA256 73b8f3987e5cbc9f26de5d7bf30760fb6b357a1b63d8eae2f6df7ec28ae1df60
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OSE.EXE

        • Path C:\Program Files\Common Files\microsoft shared\Source Engine\OSE.EXE
        • Size 748KB
        • SHA256 545678098bdc7576dd9262058fc2f5788a297f9f04ddaa431bc7328dce9456f0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.vir

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.vir
        • Size 6.5MB
        • SHA256 8ca99bac468318767ef60f98499d90ba7d2636e77c1e67338c21331581ebb36f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        elevation_service.exe

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
        • Size 2.8MB
        • SHA256 ae3aade79fbd33c2850aa6309a2a8afeceacc1f5cc9c9dde6986118b2c692291
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AgentService.exe

        • Path C:\Windows\System32\AgentService.exe
        • Size 1.3MB
        • SHA256 b1b823f49ad7a96f22b58f4b0793ee75499af9f24e6fe25ba34b40c180c3cb63
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ssh-agent.exe

        • Path C:\Windows\System32\OpenSSH\ssh-agent.exe
        • Size 1.0MB
        • SHA256 d8866805002a5cc99e09eab65f62f535cc8575426bc8afae302f21952d2bd985
        • MD5 SHA1 SHA512 SSDEEP TLSH

        wbengine.exe

        • Path C:\Windows\System32\wbengine.exe
        • Size 2.0MB
        • SHA256 65e1cac2fb5f1034a169e640d66ef2e94ff70c3185ea3bdc7cf94c6c911c5ec4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2832-48-0x0000000140000000-0x0000000140272000-memory.dmp

        memory/2832-49-0x0000000140000000-0x0000000140272000-memory.dmp

        memory/3640-54-0x0000000140000000-0x000000014029B000-memory.dmp

        memory/3640-55-0x0000000140000000-0x000000014029B000-memory.dmp

        memory/6444-60-0x0000000140000000-0x000000014033D000-memory.dmp

        memory/6444-61-0x0000000140000000-0x000000014033D000-memory.dmp

        memory/6544-15-0x0000000140000000-0x0000000140408000-memory.dmp

        memory/6544-16-0x0000000140000000-0x0000000140408000-memory.dmp

        memory/6596-10-0x0000000140000000-0x000000014041D000-memory.dmp

        memory/6596-9-0x0000000140000000-0x000000014041D000-memory.dmp

        memory/6652-22-0x0000000140000000-0x0000000140209000-memory.dmp

        memory/6652-21-0x0000000140000000-0x0000000140209000-memory.dmp

        memory/6928-37-0x0000000140000000-0x0000000140203000-memory.dmp

        memory/6928-36-0x0000000140000000-0x0000000140203000-memory.dmp

        memory/6976-0-0x0000000000400000-0x00000000007A0000-memory.dmp

        memory/6976-1-0x0000000000400000-0x00000000007A0000-memory.dmp