General

  • Target

    43734f27ba5d4291ffadfc994b5043e1.exe

  • Size

    2.0MB

  • Sample

    250218-hhf2sszj17

  • MD5

    43734f27ba5d4291ffadfc994b5043e1

  • SHA1

    bc1228fbb0d0d8c40e4d98c6a78d39e3d7e8a23f

  • SHA256

    95ef554b8b19b7542045ec39ae55d6f1aa04120e5d9a9b54ae5f943fbac3029e

  • SHA512

    c8f109a666a6634ed91604af517d22e0702a2c21aafe85cc68dcaccc4f61b8134bb9bc6aeb1798a32e697fe1a4d6de5e2d84a9cdb0195141550b679ebc95b823

  • SSDEEP

    49152:BjZI5elk+l5Qm8l2UKRB7ljg9q9D25PImNJQ19tvzO:BceiEQmKXohU9q9D25PB+19tvzO

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://185.215.113.16/defend/random.exe

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://185.215.113.16/mine/random.exe

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://185.215.113.16/mine/random.exe

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

default

C2

http://ecozessentials.com

Attributes
  • url_path

    /e6cb1c8fc7cd1659.php

Extracted

Family

vidar

C2

https://t.me/g02f04

https://steamcommunity.com/profiles/76561199828130190

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) Chrome/131.0.0.0 Safari/537.36 OPR/116.0.0.0

Extracted

Family

redline

Botnet

cheat

C2

103.84.89.222:33791

Extracted

Family

lumma

C2

https://mercharena.biz/api

Targets

    • Target

      43734f27ba5d4291ffadfc994b5043e1.exe

    • Size

      2.0MB

    • MD5

      43734f27ba5d4291ffadfc994b5043e1

    • SHA1

      bc1228fbb0d0d8c40e4d98c6a78d39e3d7e8a23f

    • SHA256

      95ef554b8b19b7542045ec39ae55d6f1aa04120e5d9a9b54ae5f943fbac3029e

    • SHA512

      c8f109a666a6634ed91604af517d22e0702a2c21aafe85cc68dcaccc4f61b8134bb9bc6aeb1798a32e697fe1a4d6de5e2d84a9cdb0195141550b679ebc95b823

    • SSDEEP

      49152:BjZI5elk+l5Qm8l2UKRB7ljg9q9D25PImNJQ19tvzO:BceiEQmKXohU9q9D25PB+19tvzO

    • Amadey

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

    • Amadey family

    • Detect Vidar Stealer

    • Detects Healer an antivirus disabler dropper

    • Healer

      Healer an antivirus disabler dropper.

    • Healer family

    • Lumma Stealer, LummaC

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

    • Lumma family

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender Real-time Protection settings

    • Modifies Windows Defender TamperProtection settings

    • Modifies Windows Defender notification settings

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • Redline family

    • SectopRAT

      SectopRAT is a remote access trojan first seen in November 2019.

    • SectopRAT payload

    • Sectoprat family

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Enumerates VirtualBox registry keys

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • 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 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • 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.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks