LNK/Agent.AG!tr.dldr

Analysis

LNK/Agent.AG!tr.dldr is a generic detection for a Office OLE embedding Exploit/Powershell Downloader. Since this is a generic detection, malware that are detected as LNK/Agent.AG!tr.dldr may have varying behaviour.
Below are examples of some of its characteristics/behaviours:

• Using an MSOffice OLE embedding exploit, this malware intends to issue a powershell comamnd that will download from hxxp://cirad.{Removed}.id/mnfTRw3 which is a script afterwhich executes it and downloads from the following :
  • hxxp://toptre{Removed}.org/ndgHSKFte4
  • hxxp://celebrityonl{Removed}.cz/ndgHSKFte4
  • hxxp://aurea-{Removed}.ru/ndgHSKFte4
  • hxxp://transmerc{Removed}.com/ndgHSKFte4
  • hxxp://envi-her{Removed}.de/ndgHSKFte4
  • hxxp://dotec{Removed}.cl/ndgHSKFte4
  • hp://claridge-holdi{Removed}.com/ndgHSKFte4
  
  
• The downloaded file, is located at %Temp%/4.lnk, is currently detected as W32/Kryptik.4405!tr.

Recommended Action

• Make sure that your FortiGate/FortiClient system is using the latest AV database.
• Quarantine/delete files that are detected and replace infected files with clean backup copies.