General

  • Target

    c881060a9d5bf634923f485a8656243c15af8b20cdebfd33a612565693419067.exe

  • Size

    4.1MB

  • Sample

    240312-dn1wyagf54

  • MD5

    723ae6ee64497f45e3eb194dc928489c

  • SHA1

    9e6e4e5816ee069e0d18bcb132d176df9949d165

  • SHA256

    c881060a9d5bf634923f485a8656243c15af8b20cdebfd33a612565693419067

  • SHA512

    488accf660b9541f37bf6fc38ad479347a985be42bb765ea3fce0005f28f5ee42b3fa356a077df2836b07a2344d567a9f3b79289129b3a2ba80cc1241ebb180c

  • SSDEEP

    49152:36glmRKCncrCQV+8bjrajELExlb0zuFHQLNJYZI06m94H:nOOLSx9+UY

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://trad-einmyus.com/index.php

http://tradein-myus.com/index.php

http://trade-inmyus.com/index.php

rc4.i32
rc4.i32

Extracted

Family

stealc

C2

http://185.172.128.145

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Extracted

Family

lumma

C2

https://wisemassiveharmonious.shop/api

https://colorfulequalugliess.shop/api

https://resergvearyinitiani.shop/api

https://relevantvoicelesskw.shop/api

https://associationokeo.shop/api

Extracted

Family

socks5systemz

C2

http://csvpbch.net/search/?q=67e28dd83d5cf57a4406a9177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f571ea771795af8e05c644db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608fff13c1ec95923f

Targets

    • Target

      c881060a9d5bf634923f485a8656243c15af8b20cdebfd33a612565693419067.exe

    • Size

      4.1MB

    • MD5

      723ae6ee64497f45e3eb194dc928489c

    • SHA1

      9e6e4e5816ee069e0d18bcb132d176df9949d165

    • SHA256

      c881060a9d5bf634923f485a8656243c15af8b20cdebfd33a612565693419067

    • SHA512

      488accf660b9541f37bf6fc38ad479347a985be42bb765ea3fce0005f28f5ee42b3fa356a077df2836b07a2344d567a9f3b79289129b3a2ba80cc1241ebb180c

    • SSDEEP

      49152:36glmRKCncrCQV+8bjrajELExlb0zuFHQLNJYZI06m94H:nOOLSx9+UY

    • DcRat

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

    • Detect Socks5Systemz Payload

    • 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.

    • Socks5Systemz

      Socks5Systemz is a botnet written in C++.

    • Stealc

      Stealc is an infostealer written in C++.

    • Windows security bypass

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

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

    • Detects Windows executables referencing non-Windows User-Agents

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

    • Detects executables (downlaoders) containing URLs to raw contents of a paste

    • 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)

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • 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.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Manipulates WinMonFS driver.

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

    • Modifies boot configuration data using bcdedit

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks