Overview

overview

10

Static

static

10

XClient.exe

windows7-x64

10

XClient.exe

windows10-1703-x64

10

Sharing

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General

  • Target

    XClient.exe

  • Size

    75KB

  • Sample

    240717-ycsreaygjb

  • MD5

    7d3470e6f329fd84d930209dfbcf5e5a

  • SHA1

    4c98e152858f9763e231f96f465d1af1187e524d

  • SHA256

    1f837d16504edc164a9900c76e8cbd2b08efb706890a6d4e57aad902414bfa74

  • SHA512

    8ba5bd2efb5b06305a98075dcc06f2241083c40fd4e6073175d2819db25355fa9c1db1bf46324599e0c1d2d26155be1952a309963ee6625779d4197c4991ff54

  • SSDEEP

    1536:dCBqKtZASETRYMkNM55sYpN27b9iZhK76lr+HOo+eZDS:GMNkwaYG7b954yOiG

Score
10/10
stormkittyxwormexecutionpersistenceratspywarestealertrojan

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

  • telegram

    https://api.telegram.org/bot7343225892:AAGJ-_TVGwSK_6PGyafbOWbFKwsijptXrto/sendMessage?chat_id=944774411

Targets

    • Target

      XClient.exe

    • Size

      75KB

    • MD5

      7d3470e6f329fd84d930209dfbcf5e5a

    • SHA1

      4c98e152858f9763e231f96f465d1af1187e524d

    • SHA256

      1f837d16504edc164a9900c76e8cbd2b08efb706890a6d4e57aad902414bfa74

    • SHA512

      8ba5bd2efb5b06305a98075dcc06f2241083c40fd4e6073175d2819db25355fa9c1db1bf46324599e0c1d2d26155be1952a309963ee6625779d4197c4991ff54

    • SSDEEP

      1536:dCBqKtZASETRYMkNM55sYpN27b9iZhK76lr+HOo+eZDS:GMNkwaYG7b954yOiG

    Score
    10/10
    xwormexecutionpersistencerattrojanstormkittyspywarestealer

    • Detect Xworm Payload

    • StormKitty

      StormKitty is an open source info stealer written in C#.

      stealerstormkitty

    • StormKitty 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

    • Deletes itself

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • 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

2
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

3
T1082

Query Registry

3
T1012

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks