General

  • Target

    82ea9688558322b31494d2c1e228c270750c5ee356b4f587d6bd68ac1ebe16b1

  • Size

    2.4MB

  • Sample

    240707-hcrw4syckb

  • MD5

    538ca2d9d1ea48f07fd299caf73779fc

  • SHA1

    93084c63b6f4f436903c3ccbf51dad5be308f101

  • SHA256

    82ea9688558322b31494d2c1e228c270750c5ee356b4f587d6bd68ac1ebe16b1

  • SHA512

    a5455bed75d9d7505c752e1f7445a37c921572a36d523bab63335c4ec8d9897fa96c45d667595f066d26ff7855f5cf14c8e4c8175e1a9e84d80c42e017e79546

  • SSDEEP

    49152:Oa/OzX8n541D0kAfAmJWyLLbNOvYdz1uHp2iBYhUvu/f7yKW44G:OgOzMi0rNJbvPYI+YMubyP0

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

      441f614bb8a71a458b9f8274f807c33550d0a91304b7b1bc25c23c6cd8d9b616.exe

    • Size

      2.4MB

    • MD5

      7ad17f11aa6b1408999981b11078d674

    • SHA1

      57a4856e4db83685852d7c6037bb1bbde4793415

    • SHA256

      441f614bb8a71a458b9f8274f807c33550d0a91304b7b1bc25c23c6cd8d9b616

    • SHA512

      06f7dbbe0fbba7615742840c5aa0e77f87bca47eb85bc5d5b33d5785d76e9a705e4d6ce0e068f43f45986405dcaf7171dfd6bd2bbd832e2eced0032ab4695e65

    • SSDEEP

      49152:xyOXuqDgypjKg6wY7p6ZJ99hZUNs9TlID4zmjfs49s/9khpXnDD:RDdj97Y7p6ZJhZeCJOTsqD

    • 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