General
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Target
https://www.ldplayer.net/games/download/fortnite-on-pc.html?n=25567197&utm_source=unknown&utm_medium=aff&utm_campaign=aff25567197
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Sample
240822-mmgw4svekq
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://www.ldplayer.net/games/download/fortnite-on-pc.html?n=25567197&utm_source=unknown&utm_medium=aff&utm_campaign=aff25567197
Resource
win10v2004-20240802-en
Malware Config
Targets
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Target
https://www.ldplayer.net/games/download/fortnite-on-pc.html?n=25567197&utm_source=unknown&utm_medium=aff&utm_campaign=aff25567197
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Jigsaw Ransomware
Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.
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Renames multiple (4511) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Blocklisted process makes network request
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Contacts a large (597) amount of remote hosts
This may indicate a network scan to discover remotely running services.
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Creates new service(s)
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Downloads MZ/PE file
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Drops file in Drivers directory
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Manipulates Digital Signatures
Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.
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Possible privilege escalation attempt
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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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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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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Indicator Removal: File Deletion
Adversaries may delete files left behind by the actions of their intrusion activity.
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Legitimate hosting services abused for malware hosting/C2
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Modifies powershell logging option
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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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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
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Component Object Model Hijacking
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Component Object Model Hijacking
1Defense Evasion
File and Directory Permissions Modification
1Indicator Removal
1File Deletion
1Modify Registry
5Subvert Trust Controls
2Install Root Certificate
1SIP and Trust Provider Hijacking
1