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General
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Target
https://github.com/Da2dalus/The-MALWARE-Repo/tree/master/Ransomware
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Sample
250111-w7rfqaykfr
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://github.com/Da2dalus/The-MALWARE-Repo/tree/master/Ransomware
Resource
win10v2004-20241007-en
Malware Config
Extracted
C:\Users\Admin\AppData\Roaming\Microsoft\OneNote\16.0\_R_E_A_D___T_H_I_S___3UG5_.txt
cerber
http://xpcx6erilkjced3j.onion/C22B-388E-C575-0098-BBF4
http://xpcx6erilkjced3j.1n5mod.top/C22B-388E-C575-0098-BBF4
http://xpcx6erilkjced3j.19kdeh.top/C22B-388E-C575-0098-BBF4
http://xpcx6erilkjced3j.1mpsnr.top/C22B-388E-C575-0098-BBF4
http://xpcx6erilkjced3j.18ey8e.top/C22B-388E-C575-0098-BBF4
http://xpcx6erilkjced3j.17gcun.top/C22B-388E-C575-0098-BBF4
Targets
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Target
https://github.com/Da2dalus/The-MALWARE-Repo/tree/master/Ransomware
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Cerber family
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Mimikatz family
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Modifies WinLogon for persistence
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mimikatz is an open source tool to dump credentials on Windows
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Contacts a large (1122) amount of remote hosts
This may indicate a network scan to discover remotely running services.
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Downloads MZ/PE file
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Modifies Windows Firewall
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Impair Defenses: Safe Mode Boot
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Loads dropped DLL
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Adds Run key to start application
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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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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Drops file in System32 directory
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
2Disable or Modify System Firewall
1Safe Mode Boot
1Modify Registry
3Pre-OS Boot
1Bootkit
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Discovery
Browser Information Discovery
1Network Service Discovery
1Peripheral Device Discovery
1Query Registry
3Remote System Discovery
1System Information Discovery
4System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
1Internet Connection Discovery
1