General

  • Target
    1cdc8fa106c894862958257680456c387e04d3cff191e13b19feb02d34f61d75
  • Size 1.8MB
  • Sample240731-btxqcstdra
  • SHA256 1cdc8fa106c894862958257680456c387e04d3cff191e13b19feb02d34f61d75
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 4.41

Botnet
  • 0657d1

C2
  • http://185.215.113.19

Attributes
  • install_dir

    0d8f5eb8a7

  • install_file

    explorti.exe

  • strings_key

    6c55a5f34bb433fbd933a168577b1838

  • url_paths

    /Vi9leo/index.php

rc4.plain

Extracted

Family
  • amadey

Version
  • 4.41

Botnet
  • fed3aa

C2
  • http://185.215.113.16

Attributes
  • install_dir

    44111dbc49

  • install_file

    axplong.exe

  • strings_key

    8d0ad6945b1a30a186ec2d30be6db0b5

  • url_paths

    /Jo89Ku7d/index.php

rc4.plain

Extracted

Family
  • redline

Botnet
  • exodusmarket.io

C2
  • 91.92.240.111:1334

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • Office04

C2
  • 51.222.21.20:4782

Mutex
  • 374acc94-a8cd-45c6-bc31-752e0f83541d

Attributes
  • encryption_key

    5B2A5F50FABB3F6748116D7077D95758D0DFFC77

  • install_name

    svchost.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svchost

  • subdirectory

    SubDir

Extracted

Family
  • redline

Botnet
  • LiveTraffic

C2
  • 20.52.165.210:39030

Extracted

Family
  • stealc

Botnet
  • QLL

C2
  • http://85.28.47.70

Attributes
  • url_path

    /744f169d372be841.php

Extracted

Family
  • redline

Botnet
  • 25072023

C2
  • 185.215.113.67:40960

Extracted

Family
  • redline

Botnet
  • Logs

C2
  • 185.215.113.9:9137

Extracted

Family
  • stealc

Botnet
  • valenciga

C2
  • http://91.225.219.163

Attributes
  • url_path

    /7e93b9fd3ae92094.php

Extracted

Family
  • redline

Botnet
  • 30072024

C2
  • 185.215.113.67:40960

Targets

    • Target
      1cdc8fa106c894862958257680456c387e04d3cff191e13b19feb02d34f61d75
    • Size 1.8MB
    • SHA256 1cdc8fa106c894862958257680456c387e04d3cff191e13b19feb02d34f61d75
    • MD5 SHA1 SHA512 SSDEEP
    • Amadey

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

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • RedLine

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

    • RedLine payload

    • SectopRAT

      SectopRAT is a remote access trojan first seen in November 2019.

    • SectopRAT payload

    • Stealc

      Stealc is an infostealer written in C++.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

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

    • Command and Scripting Interpreter: PowerShell

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

    • Downloads MZ/PE file

    • Stops running service(s)

    • 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

    • 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

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Blocklisted process makes network request

    • Checks for any installed AV software in registry

    • 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.

    • Looks up external IP address via web service

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

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks