Overview

overview

10

Static

static

10

echo-ac.exe

windows10-2004-x64

10

echo-ac.exe

windows11-ltsc_2024-x64

10

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    05/07/2026, 17:39

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General

  • Target
    echo-ac.exe
  • Size 75KB
  • Sample260705-v8rmfaev81
  • SHA256 ad7219114cc90a639a3cce50d10133a86bd131ee96b37d019f37fe7a9e444930
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
executionxwormpersistencerattrojan

Malware Config

Extracted

Family

  • xworm

C2

  • sfpog-2a02-2f01-7c05-c700-39ac-5c45-c497-db77.run.pinggy-free.link:38749

  • :123

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    SecurityService.exe

Signatures

  • Family: Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Detect Xworm Payload 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 3 IoCs
  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\echo-ac.exe
    "C:\Users\Admin\AppData\Local\Temp\echo-ac.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1096
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "SecurityService" /tr "C:\ProgramData\SecurityService.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1064
  • C:\ProgramData\SecurityService.exe
    C:\ProgramData\SecurityService.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4920
  • C:\PROGRA~3\SecurityService.exe
    C:\PROGRA~3\SECURI~1.EXE
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1644
  • C:\ProgramData\SecurityService.exe
    C:\ProgramData\SecurityService.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3708
  • C:\ProgramData\SecurityService.exe
    C:\ProgramData\SecurityService.exe
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Executes dropped EXE
    • Adds Run key to start application
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4248
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "SecurityService" /tr "C:\ProgramData\SecurityService.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:4612

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        SecurityService.exe
        • Path C:\ProgramData\SecurityService.exe
        • Size 75KB
        • SHA256 ad7219114cc90a639a3cce50d10133a86bd131ee96b37d019f37fe7a9e444930
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        SecurityService.exe.log
        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\SecurityService.exe.log
        • Size 654B
        • SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        SecurityService.lnk
        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SecurityService.lnk
        • Size 712B
        • SHA256 55da83a21df76cbdd82c0d6c7a505c7048bceb7998a140ba5edee618565969f2
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/1096-0-0x0000000000810000-0x0000000000828000-memory.dmp
        Download

        memory/1096-5-0x0000000000F40000-0x0000000000F50000-memory.dmp
        Download

        memory/1096-10-0x0000000000F40000-0x0000000000F50000-memory.dmp
        Download