General

  • Target

    0a8673bbea31ae21e9e87be408752436.bin

  • Size

    1.8MB

  • Sample

    241226-bc3v2stjfk

  • MD5

    4ee26bae208848b6de7051b533040a5d

  • SHA1

    c53089139b3a6e193ee1af114a74ebc358b77ad1

  • SHA256

    d3263a7d2b05cae571418ed150f46aaa61169721d311cff59dd196ccd7c68b37

  • SHA512

    9786facdf05e94523ec087e2b73866ff13078f56b871f078ada56e7f613f392cea5dc75002bdbd5800d9bd98302fa3033c34f7bc7bf7df053bc01efd3a4f076a

  • SSDEEP

    24576:VY4crRVv39ALfL9tTw9M+69QhynbLZ9jGOZsedlmfexzrIDixvl9UPYBXTdhiUr4:hcrre4S+lh+Fkf0zrzUwBXx+JN

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

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

lumma

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Xnx

C2

89.105.219.152:4444

Mutex

QSR_MUTEX_mtUgT7P5LHeU78kv3K

Attributes
  • encryption_key

    TmvEOmy8eWlkKOpyXYAk

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      e2ae261a55bc83c0e3c9ab657a16d2c76a329b6a4ff40370119e079f2631b69c.exe

    • Size

      3.1MB

    • MD5

      0a8673bbea31ae21e9e87be408752436

    • SHA1

      a8c29df353c7af7928ce3e24a9f606f0787109ac

    • SHA256

      e2ae261a55bc83c0e3c9ab657a16d2c76a329b6a4ff40370119e079f2631b69c

    • SHA512

      31d1336cf35adecbed5d42e6910b24fbe01e4671aa12815c5d1d00b27f93228f35f290f570c4142622d53f8b91b4adc764020ec2d52a5ed18794308ebc64aad3

    • SSDEEP

      49152:aUnOVfsVG4mPq3wMSk7+7NNnAXbfHQfiXCbSByOPssk:vnafcXmPUwMSk7+TnuLyTO0

    • 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

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

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

    • Blocklisted process makes network request

    • 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.

    • Drops startup file

    • 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 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

    • Looks up external IP address via web service

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks