General

  • Target

    9c4b2a7f10af5e2cf97af9e132a2e98007a55d3bd64318772452d410e2a4f524.exe

  • Size

    164KB

  • Sample

    240227-f6qvsshc97

  • MD5

    a1329151a972d67a22194a25d25d1828

  • SHA1

    1e40ce3146eef2fabe27e50cbc715cfef4a5e8dd

  • SHA256

    9c4b2a7f10af5e2cf97af9e132a2e98007a55d3bd64318772452d410e2a4f524

  • SHA512

    277d7c55a412f9dc3c534d458b0c6fd3102e80bdc71700a78f9b9bd66b7455d8ab7580f6ec4b4ea39d6916a6f7ecf02ab3ff8a8ae17ae3cd64fc7f71c53f6a3a

  • SSDEEP

    3072:V113f7CCQDouQqtq7elPlz35MCWime2jk14QfdwQr5:V1RWCQsultwu9jeCWimpS

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://kamsmad.com/tmp/index.php

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

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

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

Extracted

Family

smokeloader

Botnet

pub1

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

      9c4b2a7f10af5e2cf97af9e132a2e98007a55d3bd64318772452d410e2a4f524.exe

    • Size

      164KB

    • MD5

      a1329151a972d67a22194a25d25d1828

    • SHA1

      1e40ce3146eef2fabe27e50cbc715cfef4a5e8dd

    • SHA256

      9c4b2a7f10af5e2cf97af9e132a2e98007a55d3bd64318772452d410e2a4f524

    • SHA512

      277d7c55a412f9dc3c534d458b0c6fd3102e80bdc71700a78f9b9bd66b7455d8ab7580f6ec4b4ea39d6916a6f7ecf02ab3ff8a8ae17ae3cd64fc7f71c53f6a3a

    • SSDEEP

      3072:V113f7CCQDouQqtq7elPlz35MCWime2jk14QfdwQr5:V1RWCQsultwu9jeCWimpS

    • 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.

    • Detect binaries embedding considerable number of MFA browser extension IDs.

    • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables Discord URL observed in first stage droppers

    • Detects executables containing URLs to raw contents of a Github gist

    • Detects executables containing artifacts associated with disabling Widnows Defender

    • Detects executables packed with VMProtect.

    • Detects executables referencing many varying, potentially fake Windows User-Agents

    • UPX dump on OEP (original entry point)

    • 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.

    • 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