General

  • Target

    8a9496361443e861a60f041a6f152e9c0f2b2cf73d06dc4b11f700d19e6ce079

  • Size

    244KB

  • Sample

    240123-c1g4xsffg9

  • MD5

    559767419fdd74a627062b79d8c9811a

  • SHA1

    f7113bc97d15c894f2436fd142109c93862b798b

  • SHA256

    8a9496361443e861a60f041a6f152e9c0f2b2cf73d06dc4b11f700d19e6ce079

  • SHA512

    15e9b1e70eff833c2d27525c6c3d38d02d326dfde225734d4391b10989987302be4df2714d1168bbed3314f5421e994824212422c9d0e4f242033f265e293061

  • SSDEEP

    3072:IvU5pgLxSMl/KAG6Ckznm3g67NcNsGsndClMX4KAx36E:IvUbgLxhFKPIzmw67NcNLKAxqE

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

      8a9496361443e861a60f041a6f152e9c0f2b2cf73d06dc4b11f700d19e6ce079

    • Size

      244KB

    • MD5

      559767419fdd74a627062b79d8c9811a

    • SHA1

      f7113bc97d15c894f2436fd142109c93862b798b

    • SHA256

      8a9496361443e861a60f041a6f152e9c0f2b2cf73d06dc4b11f700d19e6ce079

    • SHA512

      15e9b1e70eff833c2d27525c6c3d38d02d326dfde225734d4391b10989987302be4df2714d1168bbed3314f5421e994824212422c9d0e4f242033f265e293061

    • SSDEEP

      3072:IvU5pgLxSMl/KAG6Ckznm3g67NcNsGsndClMX4KAx36E:IvUbgLxhFKPIzmw67NcNLKAxqE

    • 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

    • Rhadamanthys

      Rhadamanthys is an info stealer written in C++ first seen in August 2022.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Stealc

      Stealc is an infostealer written in C++.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Windows security bypass

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

    • 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.

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • UPX packed file

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

    • 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

    • 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 NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks