General

  • Target
    23fa195be652ef4af44a1f80ebfde631584e6ddd3b014f14af6fc4ac7605d584
  • Size 418KB
  • Sample240605-fgbdtafe56
  • SHA256 23fa195be652ef4af44a1f80ebfde631584e6ddd3b014f14af6fc4ac7605d584
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 4.21

Botnet
  • 9a3efc

C2
  • http://check-ftp.ru

Attributes
  • install_dir

    b9695770f1

  • install_file

    Dctooux.exe

  • strings_key

    1d3a0f2941c4060dba7f23a378474944

  • url_paths

    /forum/index.php

rc4.plain

Targets

    • Target
      23fa195be652ef4af44a1f80ebfde631584e6ddd3b014f14af6fc4ac7605d584
    • Size 418KB
    • SHA256 23fa195be652ef4af44a1f80ebfde631584e6ddd3b014f14af6fc4ac7605d584
    • MD5 SHA1 SHA512 SSDEEP
    • Amadey

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

    • Modifies firewall policy service

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • UAC bypass

    • Windows security bypass

    • Modifies boot configuration data using bcdedit

    • Command and Scripting Interpreter: PowerShell

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Downloads MZ/PE file

    • 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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Windows security modification

    • Checks whether UAC is enabled

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks