General

  • Target

    1ad057f20760236870be5f5a81fe789f0d33184371426bf5d278f64248ae5258

  • Size

    2.3MB

  • Sample

    240708-clsxwaxemp

  • MD5

    17b03a403438e26df7304a0743fb9fda

  • SHA1

    62f08c0b06f78cbedd706234247314556fef6fe8

  • SHA256

    1ad057f20760236870be5f5a81fe789f0d33184371426bf5d278f64248ae5258

  • SHA512

    23e29edd5c54ada3f2cd6c4cab2ee7c50e9057170174aa61b673f2a37833367e032ac0292f21f96e5255420d4870d619150025ffe1178da7b5a44b231688a171

  • SSDEEP

    49152:5JQwTTGhhnFuSWKnhfPp7n4AUsC0W6hh6EZYYWdC0RF+/:MwTi0K5p8JfIfY1g0RI

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

      1ad057f20760236870be5f5a81fe789f0d33184371426bf5d278f64248ae5258

    • Size

      2.3MB

    • MD5

      17b03a403438e26df7304a0743fb9fda

    • SHA1

      62f08c0b06f78cbedd706234247314556fef6fe8

    • SHA256

      1ad057f20760236870be5f5a81fe789f0d33184371426bf5d278f64248ae5258

    • SHA512

      23e29edd5c54ada3f2cd6c4cab2ee7c50e9057170174aa61b673f2a37833367e032ac0292f21f96e5255420d4870d619150025ffe1178da7b5a44b231688a171

    • SSDEEP

      49152:5JQwTTGhhnFuSWKnhfPp7n4AUsC0W6hh6EZYYWdC0RF+/:MwTi0K5p8JfIfY1g0RI

    • 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