General

  • Target

    c5c376615760a2511b3144d811e1f7ce71f0b7f869e38786e0bb8363f69daba4

  • Size

    3.1MB

  • Sample

    241214-yzjf9avkgm

  • MD5

    01833088c8d6bc355bbb0469c95435b7

  • SHA1

    a98b045f0809ecd4aac8b1f1ff31ed614e1cd698

  • SHA256

    c5c376615760a2511b3144d811e1f7ce71f0b7f869e38786e0bb8363f69daba4

  • SHA512

    b94f6be0f7aa84634b42eb2f06df1f7114a1fcb1a01fb75054c5936f2d68ea1d3b7db675d2cd3c436192af4ab8f843aa4df2d6382f3fb54022e23d329476212d

  • SSDEEP

    49152:AO94ZPGZhBmNFYFengrd4tLlEI+hJpYdMuCKYlf3QWFpZ8:AOGNGDQbYwngrd4PEI+rpiMuCKwf34

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://185.11.61.104/Z.png

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://185.11.61.104/A.png

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

xworm

C2

87.120.127.228:3512

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    servicesw.exe

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

lumma

C2

https://sordid-snaked.cyou/api

https://awake-weaves.cyou/api

https://wrathful-jammy.cyou/api

https://debonairnukk.xyz/api

https://diffuculttan.xyz/api

https://effecterectz.xyz/api

https://deafeninggeh.biz/api

https://immureprech.biz/api

https://tacitglibbr.biz/api

Extracted

Family

lumma

C2

https://tacitglibbr.biz/api

https://immureprech.biz/api

https://deafeninggeh.biz/api

Targets

    • Target

      c5c376615760a2511b3144d811e1f7ce71f0b7f869e38786e0bb8363f69daba4

    • Size

      3.1MB

    • MD5

      01833088c8d6bc355bbb0469c95435b7

    • SHA1

      a98b045f0809ecd4aac8b1f1ff31ed614e1cd698

    • SHA256

      c5c376615760a2511b3144d811e1f7ce71f0b7f869e38786e0bb8363f69daba4

    • SHA512

      b94f6be0f7aa84634b42eb2f06df1f7114a1fcb1a01fb75054c5936f2d68ea1d3b7db675d2cd3c436192af4ab8f843aa4df2d6382f3fb54022e23d329476212d

    • SSDEEP

      49152:AO94ZPGZhBmNFYFengrd4tLlEI+hJpYdMuCKYlf3QWFpZ8:AOGNGDQbYwngrd4PEI+rpiMuCKwf34

    • Amadey

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

    • Amadey family

    • Detect Xworm Payload

    • Lumma Stealer, LummaC

      Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

    • Lumma family

    • Modifies Windows Defender Real-time Protection settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Xmrig family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • xmrig

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

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

    • XMRig Miner payload

    • Blocklisted process makes network request

    • 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

    • Sets service image path in registry

    • 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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • 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.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Boot or Logon Autostart Execution: Authentication Package

      Suspicious Windows Authentication Registry Modification.

    • 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