General

  • Target
    take3.exe.zip
  • Size 14.1MB
  • Sample241128-yns7batpbn
  • SHA256 5f16ff577993765462d5b054e943ed28bf5dbddb869ca48b22e5643c1a32e6c9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://c3poolbat.oss-accelerate.aliyuncs.com/c3pool/WinRing0x64.sys

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://c3poolbat.oss-accelerate.aliyuncs.com/c3pool/config.json

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://c3poolbat.oss-accelerate.aliyuncs.com/c3pool/xmrig.exe

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://c3poolbat.oss-accelerate.aliyuncs.com/c3pool/nssm.exe

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    http://176.113.115.178/FF/2.png

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    http://176.113.115.178/FF/3.png

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • ser.nrovn.xyz:6606

  • ser.nrovn.xyz:7707

  • ser.nrovn.xyz:8808

Mutex
  • nfMlxLKxWkbD

Attributes
  • delay

    3

  • install

    true

  • install_file

    http.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family
  • lumma

C2
  • https://preside-comforter.sbs

  • https://savvy-steereo.sbs

  • https://copper-replace.sbs

  • https://record-envyp.sbs

  • https://slam-whipp.sbs

  • https://wrench-creter.sbs

  • https://looky-marked.sbs

  • https://plastic-mitten.sbs

  • https://tail-cease.cyou

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • SGVP

C2
  • 192.168.1.9:4782

  • 150.129.206.176:4782

  • Ai-Sgvp-33452.portmap.host:33452

Mutex
  • a35ec7b7-5a95-4207-8f25-7af0a7847fa5

Attributes
  • encryption_key

    09BBDA8FF0524296F02F8F81158F33C0AA74D487

  • install_name

    User Application Data.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windowns Client Startup

  • subdirectory

    Quasar

Extracted

Family
  • metasploit

Version
  • encoder/shikata_ga_nai

Extracted

Family
  • metasploit

Version
  • metasploit_stager

C2
  • 144.34.162.13:3333

Extracted

Family
  • amadey

Version
  • 5.10

Botnet
  • e43a13

C2
  • http://154.216.20.237

Attributes
  • install_dir

    9f16311490

  • install_file

    Gxtuum.exe

  • strings_key

    a7aaea3610a351d7a88f318681678260

  • url_paths

    /Gd84kkjf/index.php

rc4.plain

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • Office04

C2
  • 14.243.221.170:2654

Mutex
  • a7b38fdd-192e-4e47-b9ba-ca9eb81cc7bd

Attributes
  • encryption_key

    8B9AD736E943A06EAF1321AD479071E83805704C

  • install_name

    Runtime Broker.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Runtime Broker

  • subdirectory

    SubDir

Extracted

Family
  • metasploit

Version
  • windows/reverse_tcp

C2
  • 64.176.38.237:8139

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 154.197.69.165:7000

  • panpoppo-25611.portmap.io:25611

Mutex
  • wPxAiY3vITAPeZGc

Attributes
  • Install_directory

    %AppData%

  • install_file

    System.exe

aes.plain
aes.plain

Extracted

Family
  • xred

C2
  • xred.mooo.com

Attributes
  • email

    [email protected]

  • payload_url

    http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

    https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

    http://xred.site50.net/syn/SUpdate.ini

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

    https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

    http://xred.site50.net/syn/Synaptics.rar

    https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

    https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

    http://xred.site50.net/syn/SSLLibrary.dll

Extracted

Family
  • lumma

C2
  • https://tail-cease.cyou/api

Targets

    • Target
      take3.exe
    • Size 14.3MB
    • SHA256 9f9cfe42a0768cc02609fcabf58b8ccce826d5d768e8c6d3a6728f543c4eac53
    • MD5 SHA1 SHA512 SSDEEP
    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Amadey family

    • Ammyy Admin

      Remote admin tool with various capabilities.

    • AmmyyAdmin payload

    • Ammyyadmin family

    • AsyncRat

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

    • Asyncrat family

    • Detect Xworm Payload

    • FlawedAmmyy RAT

      Remote-access trojan based on leaked code for the Ammyy remote admin software.

    • Flawedammyy family

    • Lumma Stealer, LummaC

      Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

    • Lumma family

    • MetaSploit

      Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

    • Metasploit family

    • Njrat family

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • UAC bypass

    • Xmrig family

    • Xred

      Xred is backdoor written in Delphi.

    • Xred family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Async RAT payload

    • Enumerates VirtualBox registry keys

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

    • XMRig Miner payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

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

    • Download via BitsAdmin

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • Modifies Windows Firewall

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • 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.

    • Loads dropped DLL

    • Modifies file permissions

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • 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.

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • 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