Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    28/09/2026, 04:28

General

  • Target
    2026-09-27_75e693673159dd9a58429d6bc685a875_elex_stop.exe
  • Size 11.9MB
  • Sample260928-e33vhswth1
  • SHA256 f82245f5b994518ab9292053ddf423ffbc03fa1e21df080aed006bf352af9021
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Loads dropped DLL 2 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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: EnumeratesProcesses 22 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-27_75e693673159dd9a58429d6bc685a875_elex_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-27_75e693673159dd9a58429d6bc685a875_elex_stop.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Loads dropped DLL
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    PID:3888

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        Guid.db

        • Path C:\ProgramData\Tencent\DeskUpdate\Guid.db
        • Size 1KB
        • SHA256 a68dc8f96974b265aec631afb5363a7ffb4ce99e4952b3167f81ed02bd4f0268
        • MD5 SHA1 SHA512 TLSH

        GuidInfo.db

        • Path C:\ProgramData\Tencent\DeskUpdate\GuidInfo.db
        • Size 320B
        • SHA256 e2e80f2a65d2efdfdd551b857938c45ccc561b37a767254b085d3887816d696c
        • MD5 SHA1 SHA512 TLSH

        GuidList.db

        • Path C:\ProgramData\Tencent\DeskUpdate\GuidList.db
        • Size 221B
        • SHA256 2777eb31e021aec20807cbff769b623d6cb95e19674d2874cc851e5c13cd7c38
        • MD5 SHA1 SHA512 TLSH

        QQPCDownload.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TencentDownload\~e58ebd2\QQPCDownload.dll
        • Size 12.5MB
        • SHA256 ae8d7b26bcc208ab11901a1bf96f49d7815f7a39d86b86dc6caa39047415f05b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        beacon_sdk.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TencentDownload\~e58ebd2\beacon_sdk.dll
        • Size 1.9MB
        • SHA256 8288ee57a1379afcccaffd526586b0122978e63e96fddf27e1c211d682839505
        • MD5 SHA1 SHA512 SSDEEP TLSH

        11488.png

        • Path C:\Users\Admin\AppData\Local\Temp\TxdlSoftIcon\11488.png
        • Size 7KB
        • SHA256 3e929deb14e27e88108e393f7b0ad046b7b638099266ca6a75f97579c5ae3ea5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        GlobalMgr.db

        • Path C:\Users\Admin\AppData\Roaming\Tencent\DeskUpdate\GlobalMgr.db
        • Size 190B
        • SHA256 24e295fc672b7396ad08b9f7b9303fa418d274dd25d12024cb93ad93bdfb2715
        • MD5 SHA1 SHA512 TLSH