Overview

overview

10

Static

static

3

XWormLoader5.2.exe

windows7-x64

10

XWormLoader5.2.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    XWormLoader5.2.exe

  • Size

    328KB

  • Sample

    240630-lem8gswang

  • MD5

    7b421f9a8cbcf57135dfaaa03e138f83

  • SHA1

    f7f9eaa8ac991cfba88cea00fa273e2b173ed785

  • SHA256

    8996df7c25c4a8cd10c80971660852235429fa116ae188c188db8a750c579653

  • SHA512

    6903cae013bd87bb6416ecc2db6e1c7462354a4387da50e48665fa20f68bb918d786d9a22690cfdaf6fb987a3539dfafb7daeb5da130b3cf4fa304dad10d3143

  • SSDEEP

    6144:zE+IZP9d8mZrz+QftDS8lHAAJq0Q7u8mZrz+Q/zqm:1IZPH80n+QFDS8lgUbQq80n+Q/

Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

xworm

C2

promptylol-44968.portmap.io:44968

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    dllhost.exe

Targets

    • Target

      XWormLoader5.2.exe

    • Size

      328KB

    • MD5

      7b421f9a8cbcf57135dfaaa03e138f83

    • SHA1

      f7f9eaa8ac991cfba88cea00fa273e2b173ed785

    • SHA256

      8996df7c25c4a8cd10c80971660852235429fa116ae188c188db8a750c579653

    • SHA512

      6903cae013bd87bb6416ecc2db6e1c7462354a4387da50e48665fa20f68bb918d786d9a22690cfdaf6fb987a3539dfafb7daeb5da130b3cf4fa304dad10d3143

    • SSDEEP

      6144:zE+IZP9d8mZrz+QftDS8lHAAJq0Q7u8mZrz+Q/zqm:1IZPH80n+QFDS8lgUbQq80n+Q/

    Score
    10/10
    xwormexecutionpersistencerattrojan

    • Detect Xworm Payload

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks