How can i match multi-lines of log to a single using Grok

Question

I have a message with multi-lines need to match using Grok. Can everyone help me check and correct my grok below. Thanks

Log message:

"[timestamp: 1621431760] abort handler of pid 1823 thread 1848977280

*** Stacks of threads *** (current thread is 1848977280)

Stack of thread=1848977280, depth=3 main

shutdownServices

EMThriftServer::stop"

I tried: [%{WORD}: %{NUMBER:dts}] %{GREEDYDATA:rest}\n\s+%{GREEDYDATA:ini_mess}