Overview

overview

10

Static

static

10

XClient.exe

windows10-2004-x64

10

XClient.exe

windows10-ltsc_2021-x64

Sharing

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General

  • Target
    XClient.exe
  • Size 30KB
  • Sample260517-2exd6adv4t
  • SHA256 712ef7d45f2b83115c88d5394ebc16f65acf9865cb63d2d58aad3101bffd7042
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
xwormbootkitdefense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

  • xworm

Version

  • 3.0

C2

  • 27.tcp.cpolar.top:13256

Mutex

  • jBM7jPis87zpjhoE

Attributes
  • install_file

    USB.exe

aes.plain

Targets

    • Target
      XClient.exe
    • Size 30KB
    • SHA256 712ef7d45f2b83115c88d5394ebc16f65acf9865cb63d2d58aad3101bffd7042
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    xwormrattrojanbootkitdefense_evasiondiscoverypersistence

    • 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.

    • 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