Cobalt Stike Beacon Detected – 185[.]162[.]235[.]61:443

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 2021-11-11T10:57:59.748061

General Information

624077963

Cloud Provider
Cloud Region
Service
Domains	dnsme[.]in
Hostnames	nl[.]dnsme[.]in
HTTP Host	185[.]162[.]235[.]61
ISP	Serverius B.V.
ORG	Alliance 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	nginx
HTTP SITEMAP	N/A
HTTP SITEMAP HASH	N/A
HTTP TITLE	N/A
LOCATION (AREA CODE)	N/A
LOCATION (CITY)	Amsterdam
LOCATION (COUNTRY CODE)	NL
LOCATION (COUNTRY NAME)	Netherlands
LOCATION (LATITUDE)	52.37403
LOCATION (LONGITUDE)	4.88969
LOCATION (POSTAL CODE)	N/A
SSL SERIAL
SSL EXPIRED	N/A
SSL FINGERPRINT (SHA1)	def936bc3a34bd9257c5e04aef032da9fdccd857
SSL ISSUED	20211101192605Z
SSL EXPIRES	20221101192605Z
SSL CYPHER	ECDHE-RSA-AES256-GCM-SHA384
SSL VERSION	TLSv1/SSLv3
SSL TRUST (REVOKED)	N/A
TAGS	self-signed

Cobalt Strike Beacon Information

Beacon Type	HTTPS
http-get.client	User-Agent: Microsoft-CryptoAPI /10[.]0, Content-Type: application/ocsp-request
http-post.client	User-Agent: Microsoft-CryptoAPI /10[.]0, Content-Type: application/ocsp-request, Etag
DNS Beacon MaxDNS	N/A
DNS Beacon Idle	N/A
Beacon Jitter	35
dns-beacon.strategy_fail_seconds	-1
dns-beacon.strategy_rotate_seconds	-1
dns-beacon.strategy_fail_x	N/A
HTTP GET URI	185[.]162[.]235[.]61,/MQEw
HTTP POST URI	/ocsp4
Max GET Size	1048580
Port	443
post-ex.spawnto_x64	%windir%\sysnative\svchost[.]exe
post-ex.spawnto_x86	%windir%\syswow64\svchost[.]exe
process-inject.startrwx	64
process-inject.userwx	32
process-inject.allocator	N/A
proxy.behavior	2 (Use IE settings)
sleeptime	45000
useragent_header	Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; UHS)
uses_cookies	N/A
process-inject.execute	CreateThread, SetThreadContext, CreateRemoteThread, RtlCreateUserThread
Watermark	1294832939
Beacon Stage Cleanup	1