General

  • Target

    c20ec8351da86707453bb3db6412d84f89ecc59008a9437b831a4ed6e78a15c2

  • Size

    3.1MB

  • Sample

    241113-vbrk6svmgw

  • MD5

    9c45fce44a67d603745df0cecd5d3068

  • SHA1

    fc048570fbc9025258426c62abc50024ad254332

  • SHA256

    c20ec8351da86707453bb3db6412d84f89ecc59008a9437b831a4ed6e78a15c2

  • SHA512

    51d9cb3b1d6b916680e03047da369c867b936a47e06dfb925923950630f249f4a0d229d084116a7a645c8be1921696cad0e17719165c1f3f8016c3810284c974

  • SSDEEP

    98304:dxXkmmTg9/pwXqTJCfKAjnUsd3dXBfRY5Py2G:3L2jnVtJR0y2

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

      c20ec8351da86707453bb3db6412d84f89ecc59008a9437b831a4ed6e78a15c2

    • Size

      3.1MB

    • MD5

      9c45fce44a67d603745df0cecd5d3068

    • SHA1

      fc048570fbc9025258426c62abc50024ad254332

    • SHA256

      c20ec8351da86707453bb3db6412d84f89ecc59008a9437b831a4ed6e78a15c2

    • SHA512

      51d9cb3b1d6b916680e03047da369c867b936a47e06dfb925923950630f249f4a0d229d084116a7a645c8be1921696cad0e17719165c1f3f8016c3810284c974

    • SSDEEP

      98304:dxXkmmTg9/pwXqTJCfKAjnUsd3dXBfRY5Py2G:3L2jnVtJR0y2

    • Amadey

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

    • Amadey family

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Detects CryptBot payload

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Modifies Windows Defender Real-time Protection settings

    • Suspicious use of NtCreateUserProcessOtherParentProcess

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

    • 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.

    • 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 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.

    • Windows security modification

    • 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.

    • 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