General

  • Target

    33fff844_random.exe

  • Size

    5.6MB

  • Sample

    250215-jrze6sxmfw

  • MD5

    398539423b9396beea28e2eca66356df

  • SHA1

    d5e24a6af2fd326743d825faa19be0cc62987b59

  • SHA256

    87c8546e4b3ee01bf78b2d86d10b7676d02aa6aa1e5c5baff6a9b9074e6f90e5

  • SHA512

    2e3418def839988858641a6debea7b9ef971172e967a0c554f00b6fd1079322928385580ef624d0cc02a18453f210b531c030c774a1853a50fb84e03876aec7a

  • SSDEEP

    98304:YXyL8JuLYgeC65YaS2slTe5LXqrVAfdWN09wIBeXrNhoQuMBRpcWbm+7UIIO:YC8Ju0gkYaSNKXqrVAn9wIBEhrnDHDGO

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

reno

C2

http://185.215.113.115

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      33fff844_random.exe

    • Size

      5.6MB

    • MD5

      398539423b9396beea28e2eca66356df

    • SHA1

      d5e24a6af2fd326743d825faa19be0cc62987b59

    • SHA256

      87c8546e4b3ee01bf78b2d86d10b7676d02aa6aa1e5c5baff6a9b9074e6f90e5

    • SHA512

      2e3418def839988858641a6debea7b9ef971172e967a0c554f00b6fd1079322928385580ef624d0cc02a18453f210b531c030c774a1853a50fb84e03876aec7a

    • SSDEEP

      98304:YXyL8JuLYgeC65YaS2slTe5LXqrVAfdWN09wIBeXrNhoQuMBRpcWbm+7UIIO:YC8Ju0gkYaSNKXqrVAn9wIBEhrnDHDGO

    • Amadey

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

    • Amadey family

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • 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.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks