General

  • Target

    file.exe

  • Size

    3.1MB

  • Sample

    241213-ynezpaxqhs

  • MD5

    3b7f8ea6d98d68edd65a49c922671468

  • SHA1

    e5d999ecc81a188bfa758af9980ecf55038527b3

  • SHA256

    eadbad94a4ef1b106f1309fdde748c49d606fc04589fc079853292b0c4ee136f

  • SHA512

    b1c681a7d50033487b93c5566c77cac6d53650032f9e741e8bbe45d781c6ce2388c211895447d51c7d1f274a4a5863a959980ba24358f634cf2b5e41285f5109

  • SSDEEP

    49152:B4z6DN0EtR+4tYqLs4eaBq9PTX0kpQW3XyuVL:uzQ0EtRjtYqLDeaBc4bYy0

Malware Config

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

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      file.exe

    • Size

      3.1MB

    • MD5

      3b7f8ea6d98d68edd65a49c922671468

    • SHA1

      e5d999ecc81a188bfa758af9980ecf55038527b3

    • SHA256

      eadbad94a4ef1b106f1309fdde748c49d606fc04589fc079853292b0c4ee136f

    • SHA512

      b1c681a7d50033487b93c5566c77cac6d53650032f9e741e8bbe45d781c6ce2388c211895447d51c7d1f274a4a5863a959980ba24358f634cf2b5e41285f5109

    • SSDEEP

      49152:B4z6DN0EtR+4tYqLs4eaBq9PTX0kpQW3XyuVL:uzQ0EtRjtYqLDeaBc4bYy0

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Amadey family

    • GCleaner

      GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

    • Gcleaner family

    • Modifies Windows Defender Real-time Protection settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Xmrig family

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Renames multiple (8928) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • XMRig Miner payload

    • Blocklisted process makes network request

    • 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.

    • Drops startup file

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Windows security modification

    • 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.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks