General

  • Target

    c507f450ad1b6173f54279f63f93d878545560bd234a19acb442a22a40d9e28b

  • Size

    2.8MB

  • Sample

    241216-rmk1zssmdz

  • MD5

    62cfbf48cbec19b909d15fc91d70cb47

  • SHA1

    1c900301e2fa4b10cc69fb53c160f27254c607c6

  • SHA256

    c507f450ad1b6173f54279f63f93d878545560bd234a19acb442a22a40d9e28b

  • SHA512

    952f885a05b2474d76cf53607323c06646908470bf30770f2c639c5440421b1ad8c8a130807b0ad38ca88267dff2d52cbdc790aaff827b8e422d04b2148e878c

  • SSDEEP

    49152:2r4wwAxziwgFtvyMcy4MmjQfcMIQVzhzsSWSbnDBQkk:2r7wOefvyMc1MmUflFWSbnDBQkk

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

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

cryptbot

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://tacitglibbr.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

https://shineugler.biz/api

Extracted

Family

lumma

C2

https://tacitglibbr.biz/api

https://shineugler.biz/api

Extracted

Family

stealc

Botnet

default_valenciga

C2

http://185.215.113.17

Attributes
  • url_path

    /2fb6c2cc8dce150a.php

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7587476277:AAEN7p2yOtrq884E9izAnIDu8WeE8vTqRjY/sendMessag

Targets

    • Target

      c507f450ad1b6173f54279f63f93d878545560bd234a19acb442a22a40d9e28b

    • Size

      2.8MB

    • MD5

      62cfbf48cbec19b909d15fc91d70cb47

    • SHA1

      1c900301e2fa4b10cc69fb53c160f27254c607c6

    • SHA256

      c507f450ad1b6173f54279f63f93d878545560bd234a19acb442a22a40d9e28b

    • SHA512

      952f885a05b2474d76cf53607323c06646908470bf30770f2c639c5440421b1ad8c8a130807b0ad38ca88267dff2d52cbdc790aaff827b8e422d04b2148e878c

    • SSDEEP

      49152:2r4wwAxziwgFtvyMcy4MmjQfcMIQVzhzsSWSbnDBQkk:2r7wOefvyMc1MmUflFWSbnDBQkk

    • 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

    • Exela Stealer

      Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.

    • Exelastealer family

    • Gurcu family

    • Gurcu, WhiteSnake

      Gurcu aka WhiteSnake is a malware stealer written in C#.

    • 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

    • Xmrig family

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Enumerates VirtualBox registry keys

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

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

    • XMRig Miner payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • 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.

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • 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.

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

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

    • Network Service Discovery

      Attempt to gather information on host's network.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

    • Hide Artifacts: Hidden Files and Directories

    • 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