Overview

overview

10

Static

static

10

XClient.exe

windows10-2004-x64

XClient.exe

windows10-ltsc_2021-x64

Sharing

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General

  • Target
    XClient.exe
  • Size 31KB
  • Sample261102-tp63cabt9s
  • SHA256 6c414c9e59f92ca7ad365000d3b43b21efb0f9fd1249628764c4864b16d725e8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
xwormbootkitdefense_evasiondiscoverypersistenceprivilege_escalationrattrojan

Malware Config

Extracted

Family

  • xworm

Version

  • 3.1

C2

  • 82.47.101.59:3355

Mutex

  • uqQjhOpjjMz18IkL

Attributes
  • Install_directory

    %Temp%

  • install_file

    USB.exe

aes.plain

Targets

    • Target
      XClient.exe
    • Size 31KB
    • SHA256 6c414c9e59f92ca7ad365000d3b43b21efb0f9fd1249628764c4864b16d725e8
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    bootkitdefense_evasiondiscoveryxwormpersistenceprivilege_escalationrattrojan

    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Disables Task Manager via registry modification

      defense_evasion

    • Checks computer location settings

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

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

      persistenceprivilege_escalation

    • Executes dropped EXE

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks