General

  • Target

    file.exe

  • Size

    1.7MB

  • Sample

    241122-x93r7ssrem

  • MD5

    c524f231dbe4c55a328876f06e2a82d1

  • SHA1

    8d4c24359d577fcbc818158fc79554169690273b

  • SHA256

    9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708

  • SHA512

    1020928371c8423fa4724a3d603d7b2823f97eae93190cc1337d95993acab9507bb3f361026d1757acb64c26e553ba17e6cb91020e0a525acf2b24aa167328a3

  • SSDEEP

    49152:EWDzR3kVKyvwxbdJ60Lsv33hf+EsV7i7EO7Hf:EA+rkhJ60YJcV69b

Malware Config

Extracted

Family

stealc

Botnet

mars

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

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

      file.exe

    • Size

      1.7MB

    • MD5

      c524f231dbe4c55a328876f06e2a82d1

    • SHA1

      8d4c24359d577fcbc818158fc79554169690273b

    • SHA256

      9561f2e19612f381dfbe538ba59f4f6f4cefe5d0d0f26f0b7fa1fcd095b9f708

    • SHA512

      1020928371c8423fa4724a3d603d7b2823f97eae93190cc1337d95993acab9507bb3f361026d1757acb64c26e553ba17e6cb91020e0a525acf2b24aa167328a3

    • SSDEEP

      49152:EWDzR3kVKyvwxbdJ60Lsv33hf+EsV7i7EO7Hf:EA+rkhJ60YJcV69b

    • 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

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks