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240512-2h1kzsgd4s 10General
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Target
https://github.com/Da2dalus/The-MALWARE-Repo/tree/master/Ransomware
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Sample
240324-vqcqkagf5w
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://github.com/Da2dalus/The-MALWARE-Repo/tree/master/Ransomware
Resource
win10v2004-20240226-en
Malware Config
Extracted
F:\$RECYCLE.BIN\S-1-5-21-557049126-2506969350-2798870634-1000\IQJYNXQ-MANUAL.txt
gandcrab
http://gandcrabmfe6mnef.onion/edf09d4b6206e09
Extracted
C:\g1rFryAhrVg2xrt\DECRYPT_YOUR_FILES.HTML
Targets
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Target
https://github.com/Da2dalus/The-MALWARE-Repo/tree/master/Ransomware
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BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
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Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
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Modifies WinLogon for persistence
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Renames multiple (438) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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mimikatz is an open source tool to dump credentials on Windows
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Contacts a large (1140) amount of remote hosts
This may indicate a network scan to discover remotely running services.
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Disables RegEdit via registry modification
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Disables Task Manager via registry modification
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Disables use of System Restore points
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Downloads MZ/PE file
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Modifies Windows Firewall
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Sets file execution options in registry
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Sets service image path in registry
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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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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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
3Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
3Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Indicator Removal
2File Deletion
2Modify Registry
9