General
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Target
https://link-center.net/181916/optus
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Sample
230821-zhg3jagb22
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://link-center.net/181916/optus
Resource
win10v2004-20230703-en
Malware Config
Targets
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Target
https://link-center.net/181916/optus
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Cobalt Strike reflective loader
Detects the reflective loader used by Cobalt Strike.
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CoreEntity .NET Packer
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
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Creates new service(s)
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Downloads MZ/PE file
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Modifies Installed Components in the registry
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Sets file execution options in registry
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Executes dropped EXE
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Loads dropped DLL
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Registers COM server for autorun
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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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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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AutoIT Executable
AutoIT scripts compiled to PE executables.
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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Create or Modify System Process
1Windows Service
1Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Pre-OS Boot
1Bootkit
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3