Overview

overview

10

Static

static

10

2026-08-15...er.exe

windows10-2004-x64

10

2026-08-15...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    135s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/08/2026, 21:28

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General

  • Target
    2026-08-15_a9fd2eca8cc71be3767ab64c28c0e01e_amadey_elex_luca-stealer_njrat_smoke-loader.exe
  • Size 1.9MB
  • Sample260815-1bt9ystfnd
  • SHA256 9aae390aaa1a64c3b3c318a18d7fcd61a07e9cfd79284ff045cd2c5abacbba2a
  • 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\2026-08-15_a9fd2eca8cc71be3767ab64c28c0e01e_amadey_elex_luca-stealer_njrat_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-15_a9fd2eca8cc71be3767ab64c28c0e01e_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:4172
  • 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:6116
  • 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:6012
  • C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
    "C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe"
    1⤵
    • Executes dropped EXE
    PID:3440
  • \??\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:3656
  • C:\Windows\System32\OpenSSH\ssh-agent.exe
    C:\Windows\System32\OpenSSH\ssh-agent.exe
    1⤵
    • Executes dropped EXE
    PID:5472

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 0355ae60339824e8cfd06650f2dd3c709609f67f304668f3dd70c5faafc2ee40
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        maintenanceservice.exe
        • Path C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
        • Size 760KB
        • SHA256 43f21f6fe64908a7ae89de1f1f494aa95ba9f07843d405f31dc16d9f192913b1
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        OSE.EXE
        • Path C:\Program Files\Common Files\microsoft shared\Source Engine\OSE.EXE
        • Size 740KB
        • SHA256 927cb03ab221ed3645d572c9ec597587a8cc20ad8b79cbe5c7ca1ca13320445b
        • 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 75877d2c423d90d31f17d9b01c4219b5f776fe9669100a69ce6415cb9810b6bd
        • 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 dbd4c43753843657cccf481d2d202fb921408b18f1e37833867fc716fc65b6ae
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ssh-agent.exe
        • Path C:\Windows\System32\OpenSSH\ssh-agent.exe
        • Size 1.0MB
        • SHA256 113bad6817a4b136bb2c1a98c57334e87cada0327f9ade4b26673db9f7c23292
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/3440-19-0x0000000140000000-0x000000014020F000-memory.dmp
        Download

        memory/3440-33-0x0000000140000000-0x000000014020F000-memory.dmp
        Download

        memory/3656-101-0x0000000140000000-0x0000000140209000-memory.dmp
        Download

        memory/3656-35-0x0000000140000000-0x0000000140209000-memory.dmp
        Download

        memory/4172-0-0x0000000000400000-0x00000000007AE000-memory.dmp
        Download

        memory/4172-1-0x0000000000400000-0x00000000007AE000-memory.dmp
        Download

        memory/5472-46-0x0000000140000000-0x0000000140278000-memory.dmp
        Download

        memory/5472-108-0x0000000140000000-0x0000000140278000-memory.dmp
        Download

        memory/6012-14-0x0000000140000000-0x000000014040E000-memory.dmp
        Download

        memory/6012-94-0x0000000140000000-0x000000014040E000-memory.dmp
        Download

        memory/6012-89-0x0000000140000000-0x000000014040E000-memory.dmp
        Download

        memory/6116-90-0x0000000140000000-0x0000000140423000-memory.dmp
        Download

        memory/6116-85-0x0000000140000000-0x0000000140423000-memory.dmp
        Download

        memory/6116-9-0x0000000140000000-0x0000000140423000-memory.dmp
        Download