General

  • Target

    43fefcf79068cf7cb0b45426f60c89eb92943c652be486e9b9ecd7d5b92ce282

  • Size

    2.4MB

  • Sample

    240708-fnx66atcmq

  • MD5

    b618c6daef256eeded4cc8c92b5f7110

  • SHA1

    f4775fb13f91ac4dede2f2bd24bb0170851923e7

  • SHA256

    43fefcf79068cf7cb0b45426f60c89eb92943c652be486e9b9ecd7d5b92ce282

  • SHA512

    27b526f5f821dc74f1a555795a14c74e5532898681dfebc4ddc08df334fccd60feea931e9db038056df28a509cfc813cd281db3ad382072d52aaae57ecc0f2e6

  • SSDEEP

    49152:HIChsgHpNPYI9N/DsLps9bOULnDs4g3kGh8haNZ+OmFIYk4xO:oZgHTwI9N/oL8Osn9pGIaf+qY5

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

      43fefcf79068cf7cb0b45426f60c89eb92943c652be486e9b9ecd7d5b92ce282

    • Size

      2.4MB

    • MD5

      b618c6daef256eeded4cc8c92b5f7110

    • SHA1

      f4775fb13f91ac4dede2f2bd24bb0170851923e7

    • SHA256

      43fefcf79068cf7cb0b45426f60c89eb92943c652be486e9b9ecd7d5b92ce282

    • SHA512

      27b526f5f821dc74f1a555795a14c74e5532898681dfebc4ddc08df334fccd60feea931e9db038056df28a509cfc813cd281db3ad382072d52aaae57ecc0f2e6

    • SSDEEP

      49152:HIChsgHpNPYI9N/DsLps9bOULnDs4g3kGh8haNZ+OmFIYk4xO:oZgHTwI9N/oL8Osn9pGIaf+qY5

    • 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.

    • 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