General
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Target
https://www.youtube.com/watch?v=hpGxvmayq20
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Sample
240412-k82gjacc6t
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://www.youtube.com/watch?v=hpGxvmayq20
Resource
win10-20240404-en
Malware Config
Targets
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Target
https://www.youtube.com/watch?v=hpGxvmayq20
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InfinityLock Ransomware
Also known as InfinityCrypt. Based on the open-source HiddenTear ransomware.
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Modifies WinLogon for persistence
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Executes dropped EXE
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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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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
3Pre-OS Boot
1Bootkit
1