Overview

overview

10

Static

static

3

after.exe

windows10-2004-x64

10

after.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    after.exe
  • Size 258KB
  • Sample260811-q91vaaef83
  • SHA256 26a5472cbdcd17de4151e8ab4812c59e71905184b7639934541c0aaafe6fbf85
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
xwormdefense_evasionexecutionpersistencerattrojan

Malware Config

Extracted

Family

  • xworm

Mutex

  • yNحكـX8ٍبAGLWِF6Jo2DiObلٍLZا3ا

Attributes
  • Install_directory

    %Port%

  • install_file

    MicrosoftEdgeUpdateTaskMachineUAC.exe

aes.plain

Targets

    • Target
      after.exe
    • Size 258KB
    • SHA256 26a5472cbdcd17de4151e8ab4812c59e71905184b7639934541c0aaafe6fbf85
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasionexecutionxwormpersistencerattrojan

    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

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

    • Executes dropped EXE

    • Prevents Microsoft Defender from scanning certain paths by adding an exclusion.

      Uses the Powershell Add-MpPreference cmdlet to exclude paths from being scanned by Microsoft Defender.

      defense_evasion

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks