Extracted

Extracted

• • Target

    MasonClient.exe

  • Size

    54KB

  • MD5

    a51b3cb18641d1abd8cc9104e06e09c4

  • SHA1

    2e656f9f2fff61c4e0594a4459fe945c07735bc7

  • SHA256

    b19785992fe57f8f4ab7c7fc7d067a6d3c0832252afc5f13d6e165afefcff90b

  • SHA512

    ae01bc88a59e3b90b0f6d684cbc05b62e57baf3fe68d75d08652e0006adb3d6000939c6e688ce28d4a603afdf1e80b6b1cb3d5e9abaef24938bb8da34a403b76

  • SSDEEP

    768:/IvFRjaxUL8U1Wj0bIKN0l1VzIf823Xocb036rSqyt/X6LGaAhJO0gu3:/I9Rjaxhj8NsfITHHb036Q/pbO0gu3

  Score

  10^/10

  xwormdiscoveryexecutionransomwarerattrojandefense_evasionpersistence

  • Detect Xworm Payload

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm

  • Xworm family

    xworm

  • Blocklisted process makes network request

  • Command and Scripting Interpreter: PowerShell

    Run Powershell and hide display window.

    execution

  • Downloads MZ/PE file

  • Sets service image path in registry

    persistence

  • Checks BIOS information in registry

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

  • Checks computer location settings

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

  • Executes dropped EXE

  • Indicator Removal: Clear Windows Event Logs

    Clear Windows Event Logs to hide the activity of an intrusion.

    defense_evasion

  • Legitimate hosting services abused for malware hosting/C2

  • Drops file in System32 directory

  • Sets desktop wallpaper using registry

    ransomware

  • Suspicious use of SetThreadContext

  behavioral1behavioral2