General
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Target
https://github.com/Endermanch/MalwareDatabase
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Sample
240821-vm4d4stfjn
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://github.com/Endermanch/MalwareDatabase
Resource
win10v2004-20240802-en
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\Temp1_WannaCrypt0r.zip\@[email protected]
wannacry
13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94
Targets
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Target
https://github.com/Endermanch/MalwareDatabase
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InfinityLock Ransomware
Also known as InfinityCrypt. Based on the open-source HiddenTear ransomware.
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (64) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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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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Modifies file permissions
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Adds Run key to start application
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File and Directory Permissions Modification: Windows File and Directory Permissions Modification
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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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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
File and Directory Permissions Modification
2Windows File and Directory Permissions Modification
1Hide Artifacts
1Hidden Files and Directories
1Indicator Removal
1File Deletion
1Modify Registry
4Pre-OS Boot
1Bootkit
1