General

  • Target

    71835f2b69d98d275b4b0afb1b3f77af.exe

  • Size

    141KB

  • Sample

    240221-f6esjaca9t

  • MD5

    71835f2b69d98d275b4b0afb1b3f77af

  • SHA1

    6d9b9bed0eb69d9b1f83dfb6df90e3a9ee8cc61a

  • SHA256

    c36d9a5680ece3f4ceb44ed997961422d13e6b7eba7ea1d678a0efc561934194

  • SHA512

    e31762fb636c97ce8d9e6137418f93ca04c7db8cf1fe3adf67eb503e697abd14eed3627f012e107efdb1053117202c97de660c12760d57b26e1a3a630f733a63

  • SSDEEP

    3072:5/ZWTfocbBEQUoeYkVGdgFtBCEuDrw0XM:JgjPbBfUhvVGjD8

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

rc4.i32
rc4.i32

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

stealc

C2

http://185.172.128.145

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Extracted

Family

lumma

C2

https://resergvearyinitiani.shop/api

https://technologyenterdo.shop/api

https://detectordiscusser.shop/api

https://turkeyunlikelyofw.shop/api

https://associationokeo.shop/api

Targets

    • Target

      71835f2b69d98d275b4b0afb1b3f77af.exe

    • Size

      141KB

    • MD5

      71835f2b69d98d275b4b0afb1b3f77af

    • SHA1

      6d9b9bed0eb69d9b1f83dfb6df90e3a9ee8cc61a

    • SHA256

      c36d9a5680ece3f4ceb44ed997961422d13e6b7eba7ea1d678a0efc561934194

    • SHA512

      e31762fb636c97ce8d9e6137418f93ca04c7db8cf1fe3adf67eb503e697abd14eed3627f012e107efdb1053117202c97de660c12760d57b26e1a3a630f733a63

    • SSDEEP

      3072:5/ZWTfocbBEQUoeYkVGdgFtBCEuDrw0XM:JgjPbBfUhvVGjD8

    • 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.

    • Glupteba payload

    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Stealc

      Stealc is an infostealer written in C++.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Stops running service(s)

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • 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

    • 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