Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/10/2026, 10:26

General

  • Target
    55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc.exe
  • Size 101KB
  • Sample261011-mgl9mszvbw
  • SHA256 55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • UPX packed file 7 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc.exe
    "C:\Users\Admin\AppData\Local\Temp\55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4148
    • C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe
      "C:\Users\Admin\AppData\Local\Temp\55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc.exe"
      2⤵
      • Executes dropped EXE
      PID:5292
  • C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe
    "C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe" --service
    1⤵
    • Executes dropped EXE
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    PID:2468
  • C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe
    "C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe" --guard
    1⤵
    • Executes dropped EXE
    PID:4180

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        Eupdate Helper.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe
        • Size 101KB
        • SHA256 55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Eupdate Helper.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe
        • Size 101KB
        • SHA256 4a0a17a471edfc2dd6a85ccb00630344e88136d5c6a350f3614df498c0dedaf9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        EupdateHelper.log

        • Path C:\Users\Admin\AppData\Local\Temp\EupdateHelper.log
        • Size 2KB
        • SHA256 1e2a292cec05476fe6d54f682a62a42a11e87df8fab3f3e14053a869211e57fb
        • MD5 SHA1 SHA512 TLSH

        EupdateHelper.log

        • Path C:\Users\Admin\AppData\Local\Temp\EupdateHelper.log
        • Size 866B
        • SHA256 f99a21970936bdf3327abc4a2e88692f9f9c26f9fad14759bd3d6f994afdb97d
        • MD5 SHA1 SHA512 TLSH

        EupdateHelper.log

        • Path C:\Windows\TEMP\EupdateHelper.log
        • Size 3KB
        • SHA256 6ea31bca0b71c7fe7511c71890afa9b71ab90b16ac8bc9695065225672ebfd93
        • MD5 SHA1 SHA512 TLSH

        EupdateHelper.log

        • Path C:\Windows\Temp\EupdateHelper.log
        • Size 2KB
        • SHA256 f7529efcd6659fb43d5508a3b29eef223c37b6c7e7780fcb48ad373581e4dcc2
        • MD5 SHA1 SHA512 TLSH

        EupdateHelper.log

        • Path C:\Windows\Temp\EupdateHelper.log
        • Size 2KB
        • SHA256 eb859a4e24f80f991fdf62c351b9f2e958e0222bbc1a538a630be24df2073770
        • MD5 SHA1 SHA512 TLSH

        EupdateHelper.log

        • Path C:\Windows\Temp\EupdateHelper.log
        • Size 4KB
        • SHA256 9b556fefc80bafca6d3ed75d08c08976d364cfd040bf52e3222053ab69d17a21
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2468-56-0x0000000140000000-0x000000014004D000-memory.dmp

        memory/4148-0-0x0000000140000000-0x000000014004D000-memory.dmp

        memory/4148-8-0x0000000140000000-0x000000014004D000-memory.dmp

        memory/4180-58-0x0000000140000000-0x000000014004D000-memory.dmp

        memory/5292-42-0x0000000140000000-0x000000014004D000-memory.dmp