Analysis

  • max time kernel
    148s
  • max time network
    130s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-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 28 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:2408

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 e015dabd73e7fe65add4a36771395766b7e58f4e7eda9eb52034d58ab881a937
        • MD5 SHA1 SHA512 TLSH

        GuidInfo.db

        • Path C:\ProgramData\Tencent\DeskUpdate\GuidInfo.db
        • Size 320B
        • SHA256 d798ec6ce905d9d8107df9aa74268002a8a9a55eb2986033bb802fb23de78c08
        • MD5 SHA1 SHA512 TLSH

        GuidList.db

        • Path C:\ProgramData\Tencent\DeskUpdate\GuidList.db
        • Size 221B
        • SHA256 dad0b7d0cb072137860eb323c10c44cb163eacfb9b17ef2c335c2a7d16565741
        • MD5 SHA1 SHA512 TLSH

        GuidReport.dat

        • Path C:\ProgramData\Tencent\DeskUpdate\GuidReport.dat
        • Size 818B
        • SHA256 9e2f6ab5485e27bda51b3a77e9c8e782679d976394927184b73a31f9ec2712b3
        • MD5 SHA1 SHA512 TLSH

        QQPCDownload.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TencentDownload\~e59c838\QQPCDownload.dll
        • Size 12.5MB
        • SHA256 ae8d7b26bcc208ab11901a1bf96f49d7815f7a39d86b86dc6caa39047415f05b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        beacon_sdk.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TencentDownload\~e59c838\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