General

  • Target

    file.exe

  • Size

    3.1MB

  • Sample

    241213-1q2mks1lbn

  • MD5

    9012b1a4415f7b9aa72fd543adc09972

  • SHA1

    ac1436374935b9f2acc5997b9d6def9d1c829afc

  • SHA256

    4a7a59a0d984623dc473661f95b3200101cac842e4463a0e34c5bd54c0347759

  • SHA512

    99e630947f7f1f4c64fdff24c16af3722aadc5b1bd969ba134c3f5a19e4e99750ce5fb75174f9ec5e7f369abe52d2f189b411c9daece3405f4f2fbc1a9de5403

  • SSDEEP

    49152:4sRcOwN147NH6Z1F5gTFk/2cWV6HaEl8IoZ4:NLW147Nkbgi/aLaPM

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

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://drive-connect.cyou/api

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

lumma

C2

https://drive-connect.cyou/api

Targets

    • Target

      file.exe

    • Size

      3.1MB

    • MD5

      9012b1a4415f7b9aa72fd543adc09972

    • SHA1

      ac1436374935b9f2acc5997b9d6def9d1c829afc

    • SHA256

      4a7a59a0d984623dc473661f95b3200101cac842e4463a0e34c5bd54c0347759

    • SHA512

      99e630947f7f1f4c64fdff24c16af3722aadc5b1bd969ba134c3f5a19e4e99750ce5fb75174f9ec5e7f369abe52d2f189b411c9daece3405f4f2fbc1a9de5403

    • SSDEEP

      49152:4sRcOwN147NH6Z1F5gTFk/2cWV6HaEl8IoZ4:NLW147Nkbgi/aLaPM

    • Amadey

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

    • Amadey family

    • GCleaner

      GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

    • Gcleaner 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.

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

    • Renames multiple (8932) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • XMRig Miner payload

    • 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.

    • 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.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • 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