General

  • Target

    f812d7fa7f815e27c65e2e02f577b411ee17c6de45ff6a5e03ab5ce392d4f378

  • Size

    2.4MB

  • Sample

    240707-hcbvwswcpl

  • MD5

    1c537b8dd4f371fc6b114afaa0771263

  • SHA1

    65c10b8a838352d2d37f9b1db2a1b79c75c575f1

  • SHA256

    f812d7fa7f815e27c65e2e02f577b411ee17c6de45ff6a5e03ab5ce392d4f378

  • SHA512

    813afaebce0480432f1c08eec8b62968673f4399989bb25746d96bb8c71ee76685a39719d6a563c62417a65afae0095ae48907f93510ee363baf33e1d1f328f9

  • SSDEEP

    49152:x0dAWqiMOC2yB8I/4cloTTUa8M3Piw0R3kt1:x0d1RCf8oi36Lu

Malware Config

Extracted

Family

stealc

Botnet

Nice

C2

http://85.28.47.30

Attributes
  • url_path

    /920475a59bac849d.php

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

Targets

    • Target

      8e7963520355e4078e56aa0cbb4b38d6ca934a05ae11005a396ff917991116ff.exe

    • Size

      2.4MB

    • MD5

      f1a2b148ad9d615395cb7190183e1846

    • SHA1

      47ffc06503d9e4762170835c8e26a06dac904536

    • SHA256

      8e7963520355e4078e56aa0cbb4b38d6ca934a05ae11005a396ff917991116ff

    • SHA512

      0569dbd4f21b3275fc2c347297f1911beacc72eceaf5549adecee234e1d60a1cc49377aa23379118fff666b30f7390ff617f534b72a926f46306428377d7138a

    • SSDEEP

      49152:K/1un1KSBYUh4VvpzZbM7YyTQZW4DVY2FPQ9ZPEdo+YjDeVPYaj2fWajOdD8Aj/6:K/Qn1Ka4VpzZo8/g4DMn+o+YjDvjOC6S

    • 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.

    • 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.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks