General

  • Target

    64d0bc1f8bfeaa62d78c164f7edd6ad85474101ff132efd0df48c32fbe7fe6f6

  • Size

    1.8MB

  • Sample

    241207-3bkrmazkax

  • MD5

    4b89df269adfd4ddc1e017983b7341af

  • SHA1

    846cf4e334c800a10211fb75dad8c188f14e425d

  • SHA256

    64d0bc1f8bfeaa62d78c164f7edd6ad85474101ff132efd0df48c32fbe7fe6f6

  • SHA512

    f213f401ced34ed06c2040137456835005da4bbfedfd1d9af353383d2949fb19821fa855b1503c8b0f55c16301eac3ba50f7cea81e72b3ebafb07b5b3fbd65fa

  • SSDEEP

    24576:xHHfA3yNiFv+WQxsMrtSlZZwmDZ1zWecmot8gmUja8KDmHGp4Rn3NHRvsRh6QjG:xnIKhsCSlZZPzohJja8tllDsRhEsQER

Malware Config

Extracted

Family

amadey

Version

4.41

Botnet

fed3aa

C2

http://185.215.113.16

Attributes
  • install_dir

    44111dbc49

  • install_file

    axplong.exe

  • strings_key

    8d0ad6945b1a30a186ec2d30be6db0b5

  • url_paths

    /Jo89Ku7d/index.php

rc4.plain

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

lumma

C2

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

https://drive-connect.cyou/api

https://crib-endanger.sbs/api

https://faintbl0w.sbs/api

https://300snails.sbs/api

https://bored-light.sbs/api

https://3xc1aimbl0w.sbs/api

https://pull-trucker.sbs/api

https://fleez-inc.sbs/api

https://thicktoys.sbs/api

Extracted

Family

lumma

C2

https://atten-supporse.biz/api

https://se-blurry.biz/api

https://zinc-sneark.biz/api

https://drive-connect.cyou/api

https://dare-curbys.biz/api

Extracted

Family

stealc

Botnet

default_valenciga

C2

http://185.215.113.17

Attributes
  • url_path

    /2fb6c2cc8dce150a.php

Targets

    • Target

      64d0bc1f8bfeaa62d78c164f7edd6ad85474101ff132efd0df48c32fbe7fe6f6

    • Size

      1.8MB

    • MD5

      4b89df269adfd4ddc1e017983b7341af

    • SHA1

      846cf4e334c800a10211fb75dad8c188f14e425d

    • SHA256

      64d0bc1f8bfeaa62d78c164f7edd6ad85474101ff132efd0df48c32fbe7fe6f6

    • SHA512

      f213f401ced34ed06c2040137456835005da4bbfedfd1d9af353383d2949fb19821fa855b1503c8b0f55c16301eac3ba50f7cea81e72b3ebafb07b5b3fbd65fa

    • SSDEEP

      24576:xHHfA3yNiFv+WQxsMrtSlZZwmDZ1zWecmot8gmUja8KDmHGp4Rn3NHRvsRh6QjG:xnIKhsCSlZZPzohJja8tllDsRhEsQER

    • Amadey

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

    • Amadey family

    • Lumma Stealer, LummaC

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

    • Lumma family

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • UAC bypass

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Stops running service(s)

    • 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 web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • 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.

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • An obfuscated cmd.exe command-line is typically used to evade detection.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks