General

  • Target
    file.exe
  • Size 1.1MB
  • Sample240809-ynnltsxdlm
  • SHA256 fbb957b3e36ba1dda0b65986117fd8555041d747810a100b47da4a90a1dfd693
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 4.41

Botnet
  • a51500

C2
  • http://api.garageserviceoperation.com

Attributes
  • install_dir

    0cf505a27f

  • install_file

    ednfovi.exe

  • strings_key

    0044a8b8e295529eaf3743c9bc3171d2

  • url_paths

    /CoreOPT/index.php

rc4.plain

Targets

    • Target
      file.exe
    • Size 1.1MB
    • SHA256 fbb957b3e36ba1dda0b65986117fd8555041d747810a100b47da4a90a1dfd693
    • MD5 SHA1 SHA512 SSDEEP
    • Amadey

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

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • UAC bypass

    • Windows security bypass

    • 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.

    • 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

    • Indirect Command Execution

      Adversaries may abuse utilities that allow for command execution to bypass security restrictions that limit the use of command-line interpreters.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Windows security modification

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Drops Chrome extension

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Enumerates processes with tasklist

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks