General
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Target
https://sites.google.com/view/thebest1ds
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Sample
240423-xwkdpsbb22
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://sites.google.com/view/thebest1ds
Resource
win11-20240412-en
Malware Config
Extracted
warzonerat
168.61.222.215:5400
Targets
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Target
https://sites.google.com/view/thebest1ds
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Chimera
Ransomware which infects local and network files, often distributed via Dropbox links.
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Chimera Ransomware Loader DLL
Drops/unpacks executable file which resembles Chimera's Loader.dll.
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WarzoneRat, AveMaria
WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.
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Renames multiple (3272) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Warzone RAT payload
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Blocklisted process makes network request
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Downloads MZ/PE file
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Modifies Installed Components in the registry
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Modifies Windows Firewall
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Drops startup file
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Executes dropped EXE
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Adds Run key to start application
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Drops desktop.ini file(s)
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
3