General

  • Target

    aa883f75bff0257a0fefd5d8d20c6297.exe

  • Size

    2.0MB

  • Sample

    250211-vy77fatpfk

  • MD5

    aa883f75bff0257a0fefd5d8d20c6297

  • SHA1

    3fb6e0f9349bab21030e8f7168cf74ea89567c97

  • SHA256

    50df2efc36116c3304f57dbc7d5f6ef6adef582e53f0662b2dac87f8757f1ced

  • SHA512

    651922f8a37211c043287b37d7f2e7a06fa795550503687ddcd93d17d96d504ac420fd642f659b722feb3dbbf173042480a470382cece8717f53e696af5d57b7

  • SSDEEP

    49152:yzrn/QLcFz1XcsHUO6nWM2UDhIImtMkKuK6nSsLThklxLEOGMJ7F/gcI1:A4LcFz1XcsHUOaWDUDhnmtMkv1SDBl5b

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

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://185.215.113.16/defend/random.exe

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://185.215.113.16/mine/random.exe

Targets

    • Target

      aa883f75bff0257a0fefd5d8d20c6297.exe

    • Size

      2.0MB

    • MD5

      aa883f75bff0257a0fefd5d8d20c6297

    • SHA1

      3fb6e0f9349bab21030e8f7168cf74ea89567c97

    • SHA256

      50df2efc36116c3304f57dbc7d5f6ef6adef582e53f0662b2dac87f8757f1ced

    • SHA512

      651922f8a37211c043287b37d7f2e7a06fa795550503687ddcd93d17d96d504ac420fd642f659b722feb3dbbf173042480a470382cece8717f53e696af5d57b7

    • SSDEEP

      49152:yzrn/QLcFz1XcsHUO6nWM2UDhIImtMkKuK6nSsLThklxLEOGMJ7F/gcI1:A4LcFz1XcsHUOaWDUDhnmtMkv1SDBl5b

    • Amadey

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

    • Amadey family

    • Detect Vidar Stealer

    • Detects Healer an antivirus disabler dropper

    • Healer

      Healer an antivirus disabler dropper.

    • Healer family

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender Real-time Protection settings

    • Modifies Windows Defender TamperProtection settings

    • Modifies Windows Defender notification settings

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

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

    • 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.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Uses browser remote debugging

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

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • 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 user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks