General

  • Target

    c21ac077f9867d18971c24f8e616ddff0470725707b74f6694ee2b1c2893d96f

  • Size

    2.7MB

  • Sample

    241217-hrcqqsvjek

  • MD5

    5e125d20b22d08cee52f2b9f8c4c6716

  • SHA1

    fb42948104df486d0fe6d0543dbcce06ac791844

  • SHA256

    c21ac077f9867d18971c24f8e616ddff0470725707b74f6694ee2b1c2893d96f

  • SHA512

    e53611652cd73f59bd7afd28d7d910191461b66baae1f4ee5fcec4c2267248ec9986dcf04a80f023d9cf39b5f71d1c48fb3172fbdff5258233382a1b0b0f1a15

  • SSDEEP

    49152:XuAwxK+mQRzvDOySWYdn737gBh0InSad4OeNVI:eHTmQRzvDOySWYd73Y0InSad4O/

Malware Config

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

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

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://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://drive-connect.cyou/api

Extracted

Family

cryptbot

Targets

    • Target

      c21ac077f9867d18971c24f8e616ddff0470725707b74f6694ee2b1c2893d96f

    • Size

      2.7MB

    • MD5

      5e125d20b22d08cee52f2b9f8c4c6716

    • SHA1

      fb42948104df486d0fe6d0543dbcce06ac791844

    • SHA256

      c21ac077f9867d18971c24f8e616ddff0470725707b74f6694ee2b1c2893d96f

    • SHA512

      e53611652cd73f59bd7afd28d7d910191461b66baae1f4ee5fcec4c2267248ec9986dcf04a80f023d9cf39b5f71d1c48fb3172fbdff5258233382a1b0b0f1a15

    • SSDEEP

      49152:XuAwxK+mQRzvDOySWYdn737gBh0InSad4OeNVI:eHTmQRzvDOySWYd73Y0InSad4O/

    • Amadey

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

    • Amadey 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.

    • Enumerates VirtualBox registry keys

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

    • XMRig Miner payload

    • 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.

    • 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 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • 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