Cobalt Stike Beacon Detected – 141[.]164[.]43[.]111:443

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 2022-04-03T19:47:37.027709

General Information

242783869

Cloud Provider	Vultr
Cloud Region	N/A
Service	N/A
Domains	vultrusercontent[.]com
Hostnames	141[.]164[.]43[.]111[.]vultrusercontent[.]com
HTTP Host	141[.]164[.]43[.]111
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	N/A
HTTP SITEMAP	N/A
HTTP SITEMAP HASH	N/A
HTTP TITLE	N/A
LOCATION (AREA CODE)	N/A
LOCATION (CITY)	Seoul
LOCATION (COUNTRY CODE)	KR
LOCATION (COUNTRY NAME)	Korea, Republic of
LOCATION (LATITUDE)	37.566
LOCATION (LONGITUDE)	126.9784
LOCATION (POSTAL CODE)	N/A
SSL SERIAL
SSL EXPIRED	N/A
SSL FINGERPRINT (SHA1)	1608a7aba150461762d9cf4aac5099b509d5c22f
SSL ISSUED	20220403102425Z
SSL EXPIRES	20230403102425Z
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	N/A
http-get.client
http-post.client
DNS Beacon MaxDNS	N/A
DNS Beacon Idle	N/A
Beacon Jitter	N/A
dns-beacon.strategy_fail_seconds	N/A
dns-beacon.strategy_rotate_seconds	N/A
dns-beacon.strategy_fail_x	N/A
HTTP GET URI
HTTP POST URI	N/A
Max GET Size	N/A
Port	N/A
post-ex.spawnto_x64
post-ex.spawnto_x86
process-inject.startrwx	N/A
process-inject.userwx	N/A
process-inject.allocator	N/A
proxy.behavior	N/A
sleeptime	N/A
useragent_header	N/A
uses_cookies	N/A
process-inject.execute
Watermark	N/A
Beacon Stage Cleanup	N/A