Overview

overview

10

Static

static

10

XClient.exe

windows10-1703-x64

10

XClient.exe

windows7-x64

10

XClient.exe

windows10-1703-x64

10

XClient.exe

windows10-2004-x64

10

XClient.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    23-07-2024 19:05

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General

  • Target

    XClient.exe

  • Size

    34KB

  • MD5

    8bb9d79ea292fc23e600ebd7957e9333

  • SHA1

    4e78c73a5383f14edc669260524da4bdd5130c36

  • SHA256

    12631c9b83e06b20eb1727eff06e2d6e264e8c58d62ea6ee5d351d195af3502a

  • SHA512

    35101121210917d2dfd34e48f1b29e8806637b58cd18a0bbf93da1ee6decfac12ce55c0820e22c691287c7572bcdba69fc5d134ba4834c015aa553250d6383d8

  • SSDEEP

    384:+xYQVyqLSxEe4fIETsI5feQjFptmByujICLYFiiXmv50QAXnxF8QFhk58pkFyHBp:yrvaUuYsIQehkVFyr9eWTOjhmSDc

Score
10/10
asyncratstormkittyxwormdefaultcredential_accessdiscoverypersistenceprivilege_escalationratspywarestealertrojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

insurance-helmet.gl.at.ply.gg:31388

Mutex

wbZwsAW8h4Ee9jvd

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot6758433214:AAHsOKdFy4qDz6vRHO6UQUpRG85G-wZvC1Y/sendMessage?chat_id=6234857847
Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Detect Xworm Payload 1 IoCs
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • StormKitty

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

    stealerstormkitty
  • StormKitty payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Async RAT payload 1 IoCs
    rat
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

    credential_accessstealer
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops desktop.ini file(s) 6 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

    discovery
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:784
    • C:\Users\Admin\AppData\Local\Temp\kewebv.exe
      "C:\Users\Admin\AppData\Local\Temp\kewebv.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2556
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Wi-Fi Discovery
        • Suspicious use of WriteProcessMemory
        PID:408
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1112
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show profile
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Wi-Fi Discovery
          PID:868
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2152
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1536
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:712
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show networks mode=bssid
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:1872
    • C:\Users\Admin\AppData\Local\Temp\wvrarh.exe
      "C:\Users\Admin\AppData\Local\Temp\wvrarh.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      PID:2648
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Suspicious use of AdjustPrivilegeToken
    PID:2824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3
T1547

Active Setup

1
T1547.014

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

3
T1547

Active Setup

1
T1547.014

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Modify Registry

3
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Wi-Fi Discovery

1
T1016.002

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\kewebv.exe
    Filesize

    175KB

    MD5

    9f2d773fd80c4da7ae3ce95da359f9dc

    SHA1

    6cb470ad352e52ea0ec5f863ea4ee083e983caed

    SHA256

    eb40ef4c4b8ba46300b9f95edc2f7f5ad4c7ea1e812580e3cda28b48f9ef0406

    SHA512

    83a6af54e2d550e1b8f20b6709e7f06515e4c491cbc25ebf1f1e62533cb3f71ef9b58a453f64e04eace1b7cb06f55771907047eba4afa993d88453a74825850f

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\wvrarh.exe
    Filesize

    436KB

    MD5

    173a4279e79645180febd00f8a66fefe

    SHA1

    92ed3111f7bf0f63e5089463b04c9dec0d2cd7e8

    SHA256

    5b1267781df5fa980e338f4dacd44984955d92c438209e55088efd1b1820e9ac

    SHA512

    f572abb593a1ffb10f8b106ed9e17d47b2cce4955da965d6915069c3bc310b7365414d6fe49cc63aad3ab0375125afd04949b1cfb9299b27bf34d004c1c2da5f

    Download Submit

  • C:\Users\Admin\AppData\Local\c331f83f8a9f73eb8551e9d05b3eae11\msgid.dat
    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

    Download Submit

  • memory/784-0-0x000007FEF50B3000-0x000007FEF50B4000-memory.dmp

    Filesize

    4KB

    Download

  • memory/784-1-0x0000000000370000-0x000000000037E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/784-3-0x000007FEF50B0000-0x000007FEF5A9C000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/784-4-0x000007FEF50B3000-0x000007FEF50B4000-memory.dmp

    Filesize

    4KB

    Download

  • memory/784-5-0x000007FEF50B0000-0x000007FEF5A9C000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/2556-14-0x0000000073F50000-0x000000007463E000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/2556-85-0x0000000073F50000-0x000000007463E000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/2556-13-0x0000000000F40000-0x0000000000F72000-memory.dmp

    Filesize

    200KB

    Download

  • memory/2556-94-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2556-95-0x0000000073F50000-0x000000007463E000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/2556-96-0x0000000073F50000-0x000000007463E000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/2556-12-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2648-103-0x0000000000400000-0x0000000000474000-memory.dmp

    Filesize

    464KB

    Download