Overview

overview

10

Static

static

10

2026-08-03...ry.exe

windows10-2004-x64

10

2026-08-03...ry.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 16:59

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General

  • Target
    2026-08-03_c24181282bea184e85b2c70d0c4d6fe6_elex_wannacry.exe
  • Size 1.0MB
  • Sample260803-vhn4mafp7s
  • SHA256 345fc2881e91eeb730c74e72d4c7cb9a6f036652ab94e48cd6ee6094c7d5c5e5
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-03_c24181282bea184e85b2c70d0c4d6fe6_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-03_c24181282bea184e85b2c70d0c4d6fe6_elex_wannacry.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
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    PID:6856
  • 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:3644
  • 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:5032
  • C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
    "C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe"
    1⤵
    • Executes dropped EXE
    PID:4100
  • \??\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:1092
  • C:\Windows\System32\OpenSSH\ssh-agent.exe
    C:\Windows\System32\OpenSSH\ssh-agent.exe
    1⤵
    • Executes dropped EXE
    PID:368
  • C:\Windows\system32\AgentService.exe
    C:\Windows\system32\AgentService.exe
    1⤵
    • Executes dropped EXE
    PID:4872
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Executes dropped EXE
    PID:5276

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 9267ad5a74ea5a56fa992435a1a0e14171de0d8ab20b145a7f93dae79ce28a5d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        maintenanceservice.exe
        • Path C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
        • Size 820KB
        • SHA256 764932f2f78783b7b5ff34e897d099bc49e6f23a7ffaf55ce62710da3cf1dfe8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        OSE.EXE
        • Path C:\Program Files\Common Files\microsoft shared\Source Engine\OSE.EXE
        • Size 800KB
        • SHA256 66ad0a2cc8a4183a6dad053b18400da4a012a9c450c2befa004617e2ed58a8dc
        • 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 d3092564646f09411a5fc9021563147b2b6941ced561615f1066f478de70ff3b
        • 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 ecec4f550905b0f46c7e17ed9e7892bcaa9c9c2d074a2ff71b827842d229a2fd
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        AgentService.exe
        • Path C:\Windows\System32\AgentService.exe
        • Size 1.4MB
        • SHA256 08313af8411aed7a889e87c4d746bf5b0d4803c827883c2f715e91f7c5935715
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        ssh-agent.exe
        • Path C:\Windows\System32\OpenSSH\ssh-agent.exe
        • Size 1.1MB
        • SHA256 71e0596df536b66166096648843ce38459bc36c6f1b3053590d266c52670dff6
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        wbengine.exe
        • Path C:\Windows\System32\wbengine.exe
        • Size 2.0MB
        • SHA256 0a7cf5eab3fad1669482e8db7613dfede29e14a65f784a156799dcc452765d36
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/368-48-0x0000000140000000-0x0000000140289000-memory.dmp
        Download

        memory/368-49-0x0000000140000000-0x0000000140289000-memory.dmp
        Download

        memory/1092-36-0x0000000140000000-0x000000014021A000-memory.dmp
        Download

        memory/1092-37-0x0000000140000000-0x000000014021A000-memory.dmp
        Download

        memory/3644-10-0x0000000140000000-0x0000000140434000-memory.dmp
        Download

        memory/3644-9-0x0000000140000000-0x0000000140434000-memory.dmp
        Download

        memory/4100-22-0x0000000140000000-0x0000000140220000-memory.dmp
        Download

        memory/4100-21-0x0000000140000000-0x0000000140220000-memory.dmp
        Download

        memory/4872-54-0x0000000140000000-0x00000001402B2000-memory.dmp
        Download

        memory/4872-55-0x0000000140000000-0x00000001402B2000-memory.dmp
        Download

        memory/5032-16-0x0000000140000000-0x000000014041F000-memory.dmp
        Download

        memory/5032-15-0x0000000140000000-0x000000014041F000-memory.dmp
        Download

        memory/5276-60-0x0000000140000000-0x0000000140354000-memory.dmp
        Download

        memory/5276-61-0x0000000140000000-0x0000000140354000-memory.dmp
        Download

        memory/6856-0-0x0000000000400000-0x000000000062B000-memory.dmp
        Download

        memory/6856-8-0x0000000000400000-0x000000000062B000-memory.dmp
        Download