Cobalt Stike Beacon Detected – 185[.]184[.]223[.]200:443

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 2021-11-14T13:44:50.278992

General Information

5.402247353845567e+37

Cloud Provider
Cloud Region
Service
Domains	N/A
Hostnames	N/A
HTTP Host	185[.]184[.]223[.]200
ISP	xTom
ORG	xTom
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)	Osaka
LOCATION (COUNTRY CODE)	JP
LOCATION (COUNTRY NAME)	Japan
LOCATION (LATITUDE)	34.69374
LOCATION (LONGITUDE)	135.50218
LOCATION (POSTAL CODE)	N/A
SSL SERIAL
SSL EXPIRED	true
SSL FINGERPRINT (SHA1)	3df7742f59e7d9d38815e2bef56e49bbe41aa759
SSL ISSUED	20210106000000Z
SSL EXPIRES	20210406235959Z
SSL CYPHER	ECDHE-RSA-AES256-GCM-SHA384
SSL VERSION	TLSv1/SSLv3
SSL TRUST (REVOKED)	N/A
TAGS

Cobalt Strike Beacon Information

Beacon Type	HTTPS
http-get.client	Accept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Host: www[.]ifirefox[.]com, Referer: http://www[.]ifirefox[.]com/, Accept-Encoding: gzip, deflate, __cfduid=, Cookie
http-post.client	Accept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Host: www[.]ifirefox[.]com, Referer: http://www[.]ifirefox[.]com/, Accept-Encoding: gzip, deflate, __cfduid
DNS Beacon MaxDNS	255
DNS Beacon Idle	N/A
Beacon Jitter	26
dns-beacon.strategy_fail_seconds	N/A
dns-beacon.strategy_rotate_seconds	N/A
dns-beacon.strategy_fail_x	N/A
HTTP GET URI	ifirefox[.]com,/js/static/jquery[.]min[.]js,www[.]ifirefox[.]com,/js/static/jquery[.]min[.]js
HTTP POST URI	/js/jquery/jquery.min.js
Max GET Size	1403644
Port	443
post-ex.spawnto_x64	%windir%\sysnative\rundll32[.]exe
post-ex.spawnto_x86	%windir%\syswow64\rundll32[.]exe
process-inject.startrwx	64
process-inject.userwx	32
process-inject.allocator	N/A
proxy.behavior	2 (Use IE settings)
sleeptime	34000
useragent_header	Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; Zoom 3.6.0)
uses_cookies	N/A
process-inject.execute
Watermark	N/A
Beacon Stage Cleanup	N/A