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
    08/08/2026, 16:14

General

  • Target
    2026-08-08_4627ebd533a2674979f7f0f53b634d90_amadey_elex_luca-stealer_njrat_smoke-loader.exe
  • Size 2.0MB
  • Sample260808-tpl26st1a1
  • SHA256 5b031f14b84c363d92ea23b27be5d755aa06ebb460961b678a2a56d4300d841d
  • 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\2026-08-08_4627ebd533a2674979f7f0f53b634d90_amadey_elex_luca-stealer_njrat_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-08_4627ebd533a2674979f7f0f53b634d90_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:3204
  • 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:3632
  • 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:1472
  • C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
    "C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe"
    1⤵
    • Executes dropped EXE
    PID:4436
  • \??\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:4556
  • C:\Windows\System32\OpenSSH\ssh-agent.exe
    C:\Windows\System32\OpenSSH\ssh-agent.exe
    1⤵
    • Executes dropped EXE
    PID:3400
  • C:\Windows\system32\AgentService.exe
    C:\Windows\system32\AgentService.exe
    1⤵
    • Executes dropped EXE
    PID:2332
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Executes dropped EXE
    PID:5824

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 9c535217327a3df839efe0567c24dc5d8a5ec214d395a40783f29f74f02c923c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        maintenanceservice.exe

        • Path C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
        • Size 820KB
        • SHA256 6e0716d9cd362cbef3ff2d18e9aa79f6ec96975edf0426c27cf1fe281c96f946
        • MD5 SHA1 SHA512 SSDEEP TLSH

        OSE.EXE

        • Path C:\Program Files\Common Files\microsoft shared\Source Engine\OSE.EXE
        • Size 800KB
        • SHA256 9d78b15018fcb8a9c5e251fa04ab6a5a167aa7d4ede4e41a9b960e32b53c647f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.vir

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.vir
        • Size 6.6MB
        • SHA256 2f403b2f9dcca289e20c3a450f95b1e1bea5352fc4d25153e4a2abd4d3fbf8c2
        • 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 11c0276e7548a185136072c714e39e7b788a458556cbd3484f6b06aeecca481d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        AgentService.exe

        • Path C:\Windows\System32\AgentService.exe
        • Size 1.4MB
        • SHA256 3cd5a30c2debcb31c99d67d663d30c7e754645f96e0314faf8ef28f32399d796
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ssh-agent.exe

        • Path C:\Windows\System32\OpenSSH\ssh-agent.exe
        • Size 1.1MB
        • SHA256 886c59adb8757ff822b0ba20adba131c0b9e6a8b616ce26eaaf5789aceb8b354
        • MD5 SHA1 SHA512 SSDEEP TLSH

        wbengine.exe

        • Path C:\Windows\System32\wbengine.exe
        • Size 2.0MB
        • SHA256 112bc572e01fd9a5eeaeef6da6edb80d2f87522b57b2aa8c0f02b18f3497d403
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1472-15-0x0000000140000000-0x000000014041F000-memory.dmp

        memory/1472-16-0x0000000140000000-0x000000014041F000-memory.dmp

        memory/2332-55-0x0000000140000000-0x00000001402B2000-memory.dmp

        memory/2332-54-0x0000000140000000-0x00000001402B2000-memory.dmp

        memory/3204-1-0x0000000000400000-0x00000000007B6000-memory.dmp

        memory/3204-0-0x0000000000400000-0x00000000007B6000-memory.dmp

        memory/3400-49-0x0000000140000000-0x0000000140289000-memory.dmp

        memory/3400-48-0x0000000140000000-0x0000000140289000-memory.dmp

        memory/3632-10-0x0000000140000000-0x0000000140434000-memory.dmp

        memory/3632-9-0x0000000140000000-0x0000000140434000-memory.dmp

        memory/4436-21-0x0000000140000000-0x0000000140220000-memory.dmp

        memory/4436-22-0x0000000140000000-0x0000000140220000-memory.dmp

        memory/4556-37-0x0000000140000000-0x000000014021A000-memory.dmp

        memory/4556-36-0x0000000140000000-0x000000014021A000-memory.dmp

        memory/5824-60-0x0000000140000000-0x0000000140354000-memory.dmp

        memory/5824-61-0x0000000140000000-0x0000000140354000-memory.dmp