General
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Target
https://github.com/hellowsecretcount/zyrak
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Sample
240630-ynkj6sxbqm
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://github.com/hellowsecretcount/zyrak
Resource
win11-20240508-en
Malware Config
Targets
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Target
https://github.com/hellowsecretcount/zyrak
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Exela Stealer
Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.
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Grants admin privileges
Uses net.exe to modify the user's privileges.
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XMRig Miner payload
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Creates new service(s)
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Downloads MZ/PE file
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Modifies Windows Firewall
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Drops startup file
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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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Accesses cryptocurrency files/wallets, possible credential harvesting
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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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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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Hide Artifacts: Hidden Files and Directories
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
2PowerShell
1System Services
2Service Execution
2Persistence
Account Manipulation
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
3Windows Service
3Event Triggered Execution
2Component Object Model Hijacking
1Netsh Helper DLL
1Privilege Escalation
Account Manipulation
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
3Windows Service
3Event Triggered Execution
2Component Object Model Hijacking
1Netsh Helper DLL
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
2Disable or Modify System Firewall
1Modify Registry
1