Resubmissions

23-04-2024 19:12

240423-xwkdpsbb22 10

23-04-2024 19:11

240423-xv8d5sba97 1

23-04-2024 19:03

240423-xqn5psba65 10

General

  • Target

    https://sites.google.com/view/thebest1ds

  • Sample

    240423-xwkdpsbb22

Malware Config

Extracted

Family

warzonerat

C2

168.61.222.215:5400

Targets

    • Target

      https://sites.google.com/view/thebest1ds

    • Chimera

      Ransomware which infects local and network files, often distributed via Dropbox links.

    • Chimera Ransomware Loader DLL

      Drops/unpacks executable file which resembles Chimera's Loader.dll.

    • WarzoneRat, AveMaria

      WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • Renames multiple (3272) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Warzone RAT payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Modifies Installed Components in the registry

    • Modifies Windows Firewall

    • Drops startup file

    • Executes dropped EXE

    • UPX packed file

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

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks