General

  • Target
    file.exe
  • Size 978KB
  • Sample231016-b33yqsdb84
  • SHA256 9d5a2dd32dd86bd8454ea8b4b48cdffb3fc3e077820a5645602016f64dc82125
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • redline

Botnet
  • breha

C2
  • 77.91.124.55:19071

Extracted

Family
  • smokeloader

Version
  • 2022

C2
  • http://77.91.68.29/fks/

rc4.i32
rc4.i32

Extracted

Family
  • redline

Botnet
  • pixelscloud2.0

C2
  • 85.209.176.128:80

Extracted

Family
  • redline

Botnet
  • kukish

C2
  • 77.91.124.55:19071

Extracted

Family
  • redline

Botnet
  • @ytlogsbot

C2
  • 185.216.70.238:37515

Targets

    • Target
      file.exe
    • Size 978KB
    • SHA256 9d5a2dd32dd86bd8454ea8b4b48cdffb3fc3e077820a5645602016f64dc82125
    • MD5 SHA1 SHA512 SSDEEP
    • DcRat

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

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SectopRAT

      SectopRAT is a remote access trojan first seen in November 2019.

    • SectopRAT payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Looks for VirtualBox Guest Additions in registry

    • Downloads MZ/PE file

    • Looks for VMWare Tools registry key

    • Modifies Windows Firewall

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Uses the VBS compiler for execution

    • 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.

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks