General

  • Target

    d9865442479ec9a282ff312cd91481710f9b6e21330be30a68fa16bf36c0799f

  • Size

    3.0MB

  • Sample

    241213-vmrejswrep

  • MD5

    ad7f121646aa374af133772519375710

  • SHA1

    4e85ad004aa170ed53b7818b78e0b12e042b18ea

  • SHA256

    d9865442479ec9a282ff312cd91481710f9b6e21330be30a68fa16bf36c0799f

  • SHA512

    fbe1dfd40bc2fa8c6617823d32023dba5625c5e7cb235f87b284f1166a30d64e75781e80b2586e4a6f7ada4cda9df3e17f1d61829705647c71232a2f902c81c3

  • SSDEEP

    49152:6UAh2jV6Tj3t5FH+2Qy0GsO7wXRzFxa73lx5:6UAh2jVej3jFH+2QyQO7ghO35

Malware Config

Extracted

Family

amadey

Version

4.42

Botnet

9c9aa5

C2

http://185.215.113.43

Attributes
  • install_dir

    abc3bc1985

  • install_file

    skotes.exe

  • strings_key

    8a35cf2ea38c2817dba29a4b5b25dcf0

  • url_paths

    /Zu7JuNko/index.php

rc4.plain

Targets

    • Target

      d9865442479ec9a282ff312cd91481710f9b6e21330be30a68fa16bf36c0799f

    • Size

      3.0MB

    • MD5

      ad7f121646aa374af133772519375710

    • SHA1

      4e85ad004aa170ed53b7818b78e0b12e042b18ea

    • SHA256

      d9865442479ec9a282ff312cd91481710f9b6e21330be30a68fa16bf36c0799f

    • SHA512

      fbe1dfd40bc2fa8c6617823d32023dba5625c5e7cb235f87b284f1166a30d64e75781e80b2586e4a6f7ada4cda9df3e17f1d61829705647c71232a2f902c81c3

    • SSDEEP

      49152:6UAh2jV6Tj3t5FH+2Qy0GsO7wXRzFxa73lx5:6UAh2jVej3jFH+2QyQO7ghO35

    • Amadey

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

    • Amadey family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

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

    • Renames multiple (8179) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • 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

    • Uses browser remote debugging

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

    • 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 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

    • Drops desktop.ini file(s)

    • 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.

    • Enumerates processes with tasklist

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks