Overview

overview

10

Static

static

10

2026-07-29...er.exe

windows10-2004-x64

10

2026-07-29...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
    29/07/2026, 21:30

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General

  • Target
    2026-07-29_070c0e3c62d4a2b1da04e23b0f6ba1ce_amadey_elex_luca-stealer_njrat_smoke-loader.exe
  • Size 2.0MB
  • Sample260729-1cmlhafb68
  • SHA256 7d9a3d5c6f10745b7383584ca6ebd2527dda154c253d9f63a91c5cbeaa92712e
  • 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. 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.

    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\2026-07-29_070c0e3c62d4a2b1da04e23b0f6ba1ce_amadey_elex_luca-stealer_njrat_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-29_070c0e3c62d4a2b1da04e23b0f6ba1ce_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:3284
  • 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:5224
  • 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:2512
  • C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
    "C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe"
    1⤵
    • Executes dropped EXE
    PID:5904
  • \??\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:2680
  • C:\Windows\System32\OpenSSH\ssh-agent.exe
    C:\Windows\System32\OpenSSH\ssh-agent.exe
    1⤵
    • Executes dropped EXE
    PID:4124
  • C:\Windows\system32\AgentService.exe
    C:\Windows\system32\AgentService.exe
    1⤵
    • Executes dropped EXE
    PID:1292
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Executes dropped EXE
    PID:1376

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 77bbd414ba2be0f09f6b73dd60e260a1fa46f847b76893f366eb9eb290128fc8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        maintenanceservice.exe
        • Path C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
        • Size 820KB
        • SHA256 a64558ad8eac5c0bce55a66aa595013cbfeb8dd57697642079fb0599d772bacb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        OSE.EXE
        • Path C:\Program Files\Common Files\microsoft shared\Source Engine\OSE.EXE
        • Size 800KB
        • SHA256 20e18731023c55b54d1970350f56d21174e024fdebd00b3f323f66718059e989
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        setup.vir
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.vir
        • Size 6.6MB
        • SHA256 2d91c954393941ed891fdc07de216ec4b0e15e484f9b61a24b287a387d6367e9
        • 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 2.8MB
        • SHA256 da7f67c87dfe62a73ff4a28b09d8a9853a8f2524538da3b4d9295cbe3f66c8e7
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        AgentService.exe
        • Path C:\Windows\System32\AgentService.exe
        • Size 1.4MB
        • SHA256 08ee3377880fbfd313355fac8042b18e7a3cde045a381db1432f7b3ed077f4c5
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ssh-agent.exe
        • Path C:\Windows\System32\OpenSSH\ssh-agent.exe
        • Size 1.1MB
        • SHA256 7b7c7f38c180cc49026d3cd804485e972f8500dec79834d5f0b93b1fc8bceb54
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        wbengine.exe
        • Path C:\Windows\System32\wbengine.exe
        • Size 2.0MB
        • SHA256 2604d1d05572ce8a80ed51dd4d207ea84fe890848c68ab0b70001adb3d3ff997
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1292-54-0x0000000140000000-0x00000001402B2000-memory.dmp
        Download

        memory/1292-55-0x0000000140000000-0x00000001402B2000-memory.dmp
        Download

        memory/1376-61-0x0000000140000000-0x0000000140354000-memory.dmp
        Download

        memory/1376-60-0x0000000140000000-0x0000000140354000-memory.dmp
        Download

        memory/2512-16-0x0000000140000000-0x000000014041F000-memory.dmp
        Download

        memory/2512-15-0x0000000140000000-0x000000014041F000-memory.dmp
        Download

        memory/2680-36-0x0000000140000000-0x000000014021A000-memory.dmp
        Download

        memory/2680-37-0x0000000140000000-0x000000014021A000-memory.dmp
        Download

        memory/3284-0-0x0000000000400000-0x00000000007B6000-memory.dmp
        Download

        memory/3284-1-0x0000000000400000-0x00000000007B6000-memory.dmp
        Download

        memory/4124-49-0x0000000140000000-0x0000000140289000-memory.dmp
        Download

        memory/4124-48-0x0000000140000000-0x0000000140289000-memory.dmp
        Download

        memory/5224-10-0x0000000140000000-0x0000000140434000-memory.dmp
        Download

        memory/5224-9-0x0000000140000000-0x0000000140434000-memory.dmp
        Download

        memory/5904-21-0x0000000140000000-0x0000000140220000-memory.dmp
        Download

        memory/5904-22-0x0000000140000000-0x0000000140220000-memory.dmp
        Download