General
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Target
https://www.mediafire.com/file/j8zm1npw40ibccn/WAVE.rar/file
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Sample
240628-s8395awble
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://www.mediafire.com/file/j8zm1npw40ibccn/WAVE.rar/file
Resource
win10-20240404-en
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.29.1:4782
caa899a0-06ac-4f6e-81fc-aa150ee27e69
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encryption_key
4E1A51DFDFC9B0E3F2906C48E1714AA2CA67B1BB
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
WAVE
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subdirectory
SubDir
Targets
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Target
https://www.mediafire.com/file/j8zm1npw40ibccn/WAVE.rar/file
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Quasar payload
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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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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 system executable filetype association
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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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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Event Triggered Execution
2Change Default File Association
1Component Object Model Hijacking
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1