Overview

overview

10

Static

static

10

XClient.exe

windows7-x64

10

XClient.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    XClient.exe

  • Size

    78KB

  • Sample

    240415-nrjf6sdd46

  • MD5

    08a0de0b53d4a1f754e89317e97cc876

  • SHA1

    79aa570739ea7ce828df347852fe7cd7947eab73

  • SHA256

    32f70eace4fb8d3d0711c104f7d9ed18a3e7b62c4eb44e6ee8fa2fef9101fb40

  • SHA512

    b7d828778f4def78b0f6b8ec7112c1e002656aafae3e355cb5498155a898a5361dcd75fc2673111ace6aae7edd309b6aa2daa1eb9d9503ddc693de4a21a22423

  • SSDEEP

    1536:EruZeKyBO87fRW6IxjbXtL6Kvvqsu6wGistrOO7XTZqAATQ:CuYHB5Wdhb9Lz3wOpqRQ

Score
10/10
44caliberxwormevasionpersistenceratspywarestealertrojan

Malware Config

Extracted

Family

xworm

C2

daily-lawn.gl.at.ply.gg:28256

Attributes
  • Install_directory

    %Public%

  • install_file

    XClient.exe

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1229291998217900033/GZFkLc0s0Q0ECz4_Tuxz0BFCTwRpQTyBwxULLeHGGvrfOVLwLMhvhN6RoOgaFkDcUzK5

Targets

    • Target

      XClient.exe

    • Size

      78KB

    • MD5

      08a0de0b53d4a1f754e89317e97cc876

    • SHA1

      79aa570739ea7ce828df347852fe7cd7947eab73

    • SHA256

      32f70eace4fb8d3d0711c104f7d9ed18a3e7b62c4eb44e6ee8fa2fef9101fb40

    • SHA512

      b7d828778f4def78b0f6b8ec7112c1e002656aafae3e355cb5498155a898a5361dcd75fc2673111ace6aae7edd309b6aa2daa1eb9d9503ddc693de4a21a22423

    • SSDEEP

      1536:EruZeKyBO87fRW6IxjbXtL6Kvvqsu6wGistrOO7XTZqAATQ:CuYHB5Wdhb9Lz3wOpqRQ

    Score
    10/10
    xwormpersistencerattrojan44caliberevasionspywarestealer

    • 44Caliber

      An open source infostealer written in C#.

      stealer44caliber

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • 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

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks