General

  • Target

    2efb43edfbd9f5cc9eee083db82877906659c87ba78a0d70c60318a78223e526

  • Size

    1.8MB

  • Sample

    240723-ymwwtaxfmg

  • MD5

    648b9de4ef1e1848698ba5a9eb2ac89d

  • SHA1

    1d7753971cf27387be3c04bf1d9f30db4041a536

  • SHA256

    2efb43edfbd9f5cc9eee083db82877906659c87ba78a0d70c60318a78223e526

  • SHA512

    576313d5bd74c63ca7bdd0df1e5e454d9fc6d52d9a1a0f0b7cde221805d2a056630e9549bc42b46db20e0c7080203166d941e1998c4e08b754aa6328cffbaeef

  • SSDEEP

    49152:dbI5jMh/kFBSMKcDOGjqlFXMNlKHYzZDZ96S:dU5gh/kaMKcDrYFXMQal9

Malware Config

Extracted

Family

amadey

Version

4.30

Botnet

4dd39d

C2

http://77.91.77.82

Attributes
  • install_dir

    ad40971b6b

  • install_file

    explorti.exe

  • strings_key

    a434973ad22def7137dbb5e059b7081e

  • url_paths

    /Hun4Ko/index.php

rc4.plain

Extracted

Family

stealc

Botnet

sila

C2

http://85.28.47.31

Attributes
  • url_path

    /5499d72b3a3e55be.php

Targets

    • Target

      2efb43edfbd9f5cc9eee083db82877906659c87ba78a0d70c60318a78223e526

    • Size

      1.8MB

    • MD5

      648b9de4ef1e1848698ba5a9eb2ac89d

    • SHA1

      1d7753971cf27387be3c04bf1d9f30db4041a536

    • SHA256

      2efb43edfbd9f5cc9eee083db82877906659c87ba78a0d70c60318a78223e526

    • SHA512

      576313d5bd74c63ca7bdd0df1e5e454d9fc6d52d9a1a0f0b7cde221805d2a056630e9549bc42b46db20e0c7080203166d941e1998c4e08b754aa6328cffbaeef

    • SSDEEP

      49152:dbI5jMh/kFBSMKcDOGjqlFXMNlKHYzZDZ96S:dU5gh/kaMKcDrYFXMQal9

    • Amadey

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

    • Stealc

      Stealc is an infostealer written in C++.

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

    • 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.

    • 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.

    • Adds Run key to start application

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks