General

  • Target

    file.exe

  • Size

    2.4MB

  • Sample

    240708-sxga8ayajg

  • MD5

    4090bcb4c36bf660e37c44041456c55d

  • SHA1

    b2c2363a5b69c1393b62b03bac15e9fc4557c715

  • SHA256

    3729d0a825685cb3f1d22da6a41ad8f23ea9a44539f9e9f6d2bb9fcef1723013

  • SHA512

    0ce916ff673c9dedbfcdf3a5b29a8c0e46bfb87995c3fd0280a6660cbdcedc997ea974d5684c79edb726a5aca6e2631d63041d3d392d8f861d9a9a5b4e522182

  • SSDEEP

    49152:izS5HsWr2p7f3lDOErXH+W4BdeA2uViz9RRCyE9uDzW0C83M:izCtrwlDg3BJMGJ9u0aM

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

      file.exe

    • Size

      2.4MB

    • MD5

      4090bcb4c36bf660e37c44041456c55d

    • SHA1

      b2c2363a5b69c1393b62b03bac15e9fc4557c715

    • SHA256

      3729d0a825685cb3f1d22da6a41ad8f23ea9a44539f9e9f6d2bb9fcef1723013

    • SHA512

      0ce916ff673c9dedbfcdf3a5b29a8c0e46bfb87995c3fd0280a6660cbdcedc997ea974d5684c79edb726a5aca6e2631d63041d3d392d8f861d9a9a5b4e522182

    • SSDEEP

      49152:izS5HsWr2p7f3lDOErXH+W4BdeA2uViz9RRCyE9uDzW0C83M:izCtrwlDg3BJMGJ9u0aM

    • 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