General

  • Target

    5e65f42a9c2f08832be957142c546dbd2f84cc536f82f789339733ceeb2a02a7

  • Size

    274KB

  • Sample

    240122-fg73sahbf3

  • MD5

    4962dc99abb64c5e2aab699c798b8d82

  • SHA1

    25786051a73ffcef6cd2ec4f09a675f6451ec5db

  • SHA256

    5e65f42a9c2f08832be957142c546dbd2f84cc536f82f789339733ceeb2a02a7

  • SHA512

    e6b9d46eca6972313a8f808ba695d527bd943183965a565963b17ff4b4357815a1e25c5b86230e84fc45950724da91decb63b4298aa919086f8cd8e4f49df93e

  • SSDEEP

    3072:NocBPRHroL9gudNzunup9yW8+Yl32+r2tFyyMaxdRk4lE5a3wB1k48cV1JDh1U:NosP90L9RdNcupAW9+6jyWek3wB1pJd

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://selebration17io.io/index.php

http://vacantion18ffeu.cc/index.php

http://valarioulinity1.net/index.php

http://buriatiarutuhuob.net/index.php

http://cassiosssionunu.me/index.php

http://sulugilioiu19.net/index.php

http://goodfooggooftool.net/index.php

http://gxutc2c.com/tmp/index.php

http://proekt8.ru/tmp/index.php

http://mth.com.ua/tmp/index.php

http://pirateking.online/tmp/index.php

http://piratia.pw/tmp/index.php

http://go-piratia.ru/tmp/index.php

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

stealc

C2

http://185.172.128.79

Attributes
  • url_path

    /3886d2276�6914c4.php

rc4.plain

Targets

    • Target

      5e65f42a9c2f08832be957142c546dbd2f84cc536f82f789339733ceeb2a02a7

    • Size

      274KB

    • MD5

      4962dc99abb64c5e2aab699c798b8d82

    • SHA1

      25786051a73ffcef6cd2ec4f09a675f6451ec5db

    • SHA256

      5e65f42a9c2f08832be957142c546dbd2f84cc536f82f789339733ceeb2a02a7

    • SHA512

      e6b9d46eca6972313a8f808ba695d527bd943183965a565963b17ff4b4357815a1e25c5b86230e84fc45950724da91decb63b4298aa919086f8cd8e4f49df93e

    • SSDEEP

      3072:NocBPRHroL9gudNzunup9yW8+Yl32+r2tFyyMaxdRk4lE5a3wB1k48cV1JDh1U:NosP90L9RdNcupAW9+6jyWek3wB1pJd

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Stealc

      Stealc is an infostealer written in C++.

    • Windows security bypass

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Deletes itself

    • Executes dropped EXE

    • 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.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • 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.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks