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15/09/2026, 11:12

260915-navswatygv10

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260721-tfvb7axvcy10

General

  • Target
    Downloaders.zip
  • Size 12KB
  • Sample250213-e1kk6atmaz
  • SHA256 16930620b3b9166e0ffbd98f5d5b580c9919fd6ccdcc74fb996f53577f508267
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 127.0.0.1:1504

Mutex
  • p6Jc9GPiVmwSu2YD

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Extracted

Family
  • quasar

Version
  • 1.4.0

Botnet
  • Office04

C2
  • microsoftsys.ddns.net:4782

Mutex
  • 67e0653d-eedf-4888-88ab-78e97eb2df27

Attributes
  • encryption_key

    23E5F6D22FEE1750D36544A759A48349B064BC34

  • install_name

    PerfWatson1.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svhost

  • subdirectory

    KDOT

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • Office04

C2
  • 73.62.14.5:4782

  • havocc.ddns.net:4782

  • 98.51.190.130:20

Mutex
  • 3aaa11be-d135-4877-a61e-c409c29a7a60

Attributes
  • encryption_key

    BC9162791FD860195CF75664AE64885B64D5B5CE

  • install_name

    Client1.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Startup

  • subdirectory

    SubDir

Extracted

Family
  • xworm

Version
  • 3.1

C2
  • profile-indians.gl.at.ply.gg:39017

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • 14.243.221.170:3322

Mutex
  • ynBzTukwLg8N

Attributes
  • delay

    3

  • install

    false

  • install_file

    Clean.bat

  • install_folder

    %Temp%

aes.plain

Extracted

Family
  • njrat

Version
  • v4.0

Botnet
  • HacKed by Here

C2
  • 21.ip.gl.ply.gg:56106

Mutex
  • Windows

Attributes
  • reg_key

    Windows

  • splitter

    |-F-|

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • newoffice

C2
  • 117.18.7.76:3782

Mutex
  • d908c8ed-ea88-484e-a3d2-dcbe66ac7cfc

Attributes
  • encryption_key

    FD2DE574AF7E363A5304DF85B3475F93A948C103

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Client Startup

  • subdirectory

    SubDir

Extracted

Family
  • asyncrat

Version
  • Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet
  • Default

C2
  • 3.70.228.168:555

Mutex
  • wzchqtvtkfun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family
  • gurcu

C2
  • https://api.telegram.org/bot7617703274:AAFEXxgPRP1fZGT5UCjcRV4hUZdtNFxyusQ/sendMessage?chat_id=-4568449403

  • http://209.38.221.184:8080

  • http://46.235.26.83:8080

  • http://147.28.185.29:80

  • http://206.166.251.4:8080

  • http://51.159.4.50:8080

  • http://167.235.70.96:8080

  • http://194.164.198.113:8080

  • http://132.145.17.167:9090

  • https://5.196.181.135:443

  • http://116.202.101.219:8080

  • https://185.217.98.121:443

  • http://185.217.98.121:8080

  • http://159.203.174.113:8090

  • http://107.161.20.142:8080

  • https://192.99.196.191:443

  • http://65.49.205.24:8080

  • https://154.9.207.142:443

  • http://67.230.176.97:8080

  • http://8.222.143.111:8080

Extracted

Family
  • redline

Botnet
  • TG@CVV88888

C2
  • 185.218.125.157:21441

Extracted

Family
  • asyncrat

Botnet
  • Beyond

Attributes
  • c2_url_file

    https://rentry.co/Spread4Filly/raw

  • delay

    2

  • install

    true

  • install_file

    $77svchost.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family
  • gurcu

C2
  • https://api.telegram.org/bot7617703274:AAFEXxgPRP1fZGT5UCjcRV4hUZdtNFxyusQ/sendMessage?chat_id=-4568449403

  • https://api.telegram.org/bot7617703274:AAFEXxgPRP1fZGT5UCjcRV4hUZdtNFxyusQ/sendDocumen

Targets

    • Target
      Downloaders.zip
    • Size 12KB
    • SHA256 16930620b3b9166e0ffbd98f5d5b580c9919fd6ccdcc74fb996f53577f508267
    • MD5 SHA1 SHA512 SSDEEP
    • AsyncRat

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

    • Asyncrat family

    • Detect Xworm Payload

    • Gurcu family

    • Gurcu, WhiteSnake

      Gurcu aka WhiteSnake is a malware stealer written in C#.

    • Njrat family

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • Redline family

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • SystemBC

      SystemBC is a proxy and remote administration tool first seen in 2019.

    • Systembc family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • Async RAT payload

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Boot or Logon Autostart Execution: Active Setup

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Disables Task Manager via registry modification

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks BIOS information in registry

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

    • Drops startup file

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Detected potential entity reuse from brand MICROSOFT.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

    • Sets desktop wallpaper using registry

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks