Cobalt Stike Beacon Detected – 137[.]184[.]118[.]132:10443

The Information provided at the time of posting was detected as “Cobalt Strike”. Depending on when you are viewing this article, it may no longer be the case and could be determined as being a false positive. Please do your own additional validation. – RedPacket Security

TimeStamp 2021-11-10T19:58:08.697664

General Information

3.938258177954358e+41

Cloud Provider	DigitalOcean
Cloud Region	us-ca
Service	N/A
Domains	N/A
Hostnames	N/A
HTTP Host	137[.]184[.]118[.]132
ISP	DigitalOcean, LLC
ORG	DigitalOcean, LLC
OS	N/A
HTTP	N/A
HTTP HTML HASH	N/A
HTTP LOCATION	/
HTTP REDIRECTS
HTTP ROBOTS	N/A
HTTP ROBOTS HASH	N/A
HTTP SECURITY.TXT	N/A
HTTP SECURITY.TXT HASH	N/A
HTTP SERVER	N/A
HTTP SITEMAP	N/A
HTTP SITEMAP HASH	N/A
HTTP TITLE	N/A
LOCATION (AREA CODE)	N/A
LOCATION (CITY)	Santa Clara
LOCATION (COUNTRY CODE)	US
LOCATION (COUNTRY NAME)	United States
LOCATION (LATITUDE)	37.3924
LOCATION (LONGITUDE)	-121.9623
LOCATION (POSTAL CODE)	N/A
SSL SERIAL
SSL EXPIRED	N/A
SSL FINGERPRINT (SHA1)	6b590ae27aceae06f3fe1991b5d53e6758ce9d77
SSL ISSUED	20211011145842Z
SSL EXPIRES	20220109145841Z
SSL CYPHER	ECDHE-RSA-AES256-GCM-SHA384
SSL VERSION	TLSv1/SSLv3
SSL TRUST (REVOKED)	N/A
TAGS	cloud

Cobalt Strike Beacon Information

Beacon Type	HTTPS
http-get.client	Host: d2bqcornbekf3d[.]cloudfront[.]net, Accept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Accept-Language: en-US,en;q=0[.]5, REF=ID=C3wmqWh7OybKI, Cookie
http-post.client	Host: d2bqcornbekf3d[.]cloudfront[.]net, Accept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Accept-Language: en-US,en;q=0[.]5, U=C3wmqWh7OybKI, REF=ID=, Cookie
DNS Beacon MaxDNS	N/A
DNS Beacon Idle	N/A
Beacon Jitter	17
dns-beacon.strategy_fail_seconds	-1
dns-beacon.strategy_rotate_seconds	-1
dns-beacon.strategy_fail_x	-1
HTTP GET URI	d3q394xo39ws7d[.]cloudfront[.]net,/safebrowsing/dLqveEIZ/Tm36OZriEvFtCFLfJ-xjr1-1MwxASNlaa2iLup,d31um39t4523hw[.]cloudfront[.]net,/safebrowsing/dLqveEIZ/Tm36OZriEvFtCFLfJ-xjr1-1MwxASNlaa2iLup
HTTP POST URI	/safebrowsing/dLqveEIZ/Tm36OZriEvFtCFLfJ-xjr1-1MwxASNlaa2iRhn
Max GET Size	1048576
Port	443
post-ex.spawnto_x64	%windir%\sysnative\choice[.]exe
post-ex.spawnto_x86	%windir%\syswow64\choice[.]exe
process-inject.startrwx	64
process-inject.userwx	32
process-inject.allocator	1
proxy.behavior	2 (Use IE settings)
sleeptime	46000
useragent_header	Mozilla/5.0 (X11; Linux x86_64; rv:70.0) Gecko/20100101 Firefox/70.0
uses_cookies	1
process-inject.execute	ntdll.dll:RtlUserThreadStart, NtQueueApcThread-s, SetThreadContext, CreateRemoteThread, kernel32.dll:LoadLibraryA, RtlCreateUserThread
Watermark	425486863
Beacon Stage Cleanup	1