Cobalt Stike Beacon Detected – 139[.]180[.]175[.]197:443

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 2021-11-17T16:46:09.019788

General Information

1111784376

Cloud Provider	Vultr
Cloud Region	N/A
Service	N/A
Domains	vultr[.]com
Hostnames	139[.]180[.]175[.]197[.]vultr[.]com
HTTP Host	139[.]180[.]175[.]197
ISP	The Constant Company, LLC
ORG	The Constant Company, 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	Pagely Gateway/1.5.1
HTTP SITEMAP	N/A
HTTP SITEMAP HASH	N/A
HTTP TITLE	N/A
LOCATION (AREA CODE)	N/A
LOCATION (CITY)	Sydney
LOCATION (COUNTRY CODE)	AU
LOCATION (COUNTRY NAME)	Australia
LOCATION (LATITUDE)	-33.86785
LOCATION (LONGITUDE)	151.20732
LOCATION (POSTAL CODE)	N/A
SSL SERIAL
SSL EXPIRED	N/A
SSL FINGERPRINT (SHA1)	6d9d93a271194c00f094b920c692ca0323187938
SSL ISSUED	20210913033510Z
SSL EXPIRES	20220913033510Z
SSL CYPHER	ECDHE-RSA-AES256-GCM-SHA384
SSL VERSION	TLSv1/SSLv3
SSL TRUST (REVOKED)	N/A
TAGS	cloud, self-signed

Cobalt Strike Beacon Information

Beacon Type	HTTPS
http-get.client	Connection: close, Accept: image/*, wordpress_logged_in_1870a829d9bc69abf500eca6f00241fe=, Cookie, fullname=true
http-post.client	Connection: close, Accept-Language: en-GB;q=0[.]9, *;q=0[.]7, Content-Type: application/x-www-form-urlencoded, column=, __session__id=, Cookie
DNS Beacon MaxDNS	N/A
DNS Beacon Idle	N/A
Beacon Jitter	37
dns-beacon.strategy_fail_seconds	-1
dns-beacon.strategy_rotate_seconds	-1
dns-beacon.strategy_fail_x	-1
HTTP GET URI	139[.]180[.]175[.]197,/FAQ[.]js
HTTP POST URI	/bn
Max GET Size	1398982
Port	443
post-ex.spawnto_x64	%windir%\sysnative\svchost[.]exe
post-ex.spawnto_x86	%windir%\syswow64\svchost[.]exe
process-inject.startrwx	4
process-inject.userwx	32
process-inject.allocator	N/A
proxy.behavior	2 (Use IE settings)
sleeptime	61610
useragent_header	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/601.3.9 (KHTML, like Gecko) Version/9.0.2 Safari/601.3.9
uses_cookies	1
process-inject.execute	CreateThread, RtlCreateUserThread, CreateRemoteThread
Watermark	N/A
Beacon Stage Cleanup	1