General
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Target
https://github.com/pankoza2-pl/malwaredatabase-old
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Sample
240307-rflnyaea2t
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://github.com/pankoza2-pl/malwaredatabase-old
Resource
win10v2004-20240226-en
23 signatures
150 seconds
Malware Config
Targets
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Target
https://github.com/pankoza2-pl/malwaredatabase-old
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Chaos Ransomware
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Disables Task Manager via registry modification
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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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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MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
2Pre-OS Boot
1Bootkit
1