General

  • Target

    1ee6ec183955133fae54f8c576975b4babcabc6162962da89278762ca0eec9baN.exe

  • Size

    3.6MB

  • Sample

    241219-b16lvaskak

  • MD5

    5bb0e98e8561a87a17e3764a8833d980

  • SHA1

    8178adb057322e0c8d39eb5a67794659f0b8b028

  • SHA256

    1ee6ec183955133fae54f8c576975b4babcabc6162962da89278762ca0eec9ba

  • SHA512

    45e17668f67fe966f6c8a057c5e97efb90500bbcf8e1d8f200edd2b1c2f5f71500e0472be09df746c49048178ba931155c9a90964ecd32263d95589137a69881

  • SSDEEP

    49152:tkNUb/5n5tfWVGiIQao9R73FLXxlvEJ6gvBP90hWIdwPowjezV4XvJar0UQor:zJ5t+8iIEFLXxlvQ6sBeWIOj8gjUB

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

asyncrat

Version

0.5.6

Botnet

null

Mutex

BDC28EF86F

Attributes
  • delay

    5

  • install

    true

  • install_file

    Microsoft.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/B3ir1TTU

aes.plain

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

https://impend-differ.biz/api

https://print-vexer.biz/api

https://dare-curbys.biz/api

https://covery-mover.biz/api

https://formy-spill.biz/api

https://dwell-exclaim.biz/api

https://zinc-sneark.biz/api

https://se-blurry.biz/api

https://atten-supporse.biz/api

Extracted

Family

cryptbot

C2

http://home.fivetk5vt.top/hLfzXsaqNtoEGyaUtOMJ1734

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

lumma

C2

https://tacitglibbr.biz/api

https://atten-supporse.biz/api

Targets

    • Target

      1ee6ec183955133fae54f8c576975b4babcabc6162962da89278762ca0eec9baN.exe

    • Size

      3.6MB

    • MD5

      5bb0e98e8561a87a17e3764a8833d980

    • SHA1

      8178adb057322e0c8d39eb5a67794659f0b8b028

    • SHA256

      1ee6ec183955133fae54f8c576975b4babcabc6162962da89278762ca0eec9ba

    • SHA512

      45e17668f67fe966f6c8a057c5e97efb90500bbcf8e1d8f200edd2b1c2f5f71500e0472be09df746c49048178ba931155c9a90964ecd32263d95589137a69881

    • SSDEEP

      49152:tkNUb/5n5tfWVGiIQao9R73FLXxlvEJ6gvBP90hWIdwPowjezV4XvJar0UQor:zJ5t+8iIEFLXxlvQ6sBeWIOj8gjUB

    • Amadey

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

    • Amadey family

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Asyncrat family

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • 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

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Xmrig family

    • xmrig

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

    • Async RAT payload

    • Enumerates VirtualBox registry keys

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

    • XMRig Miner payload

    • 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.

    • Loads dropped DLL

    • 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.

    • Windows security modification

    • 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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • 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