Cobalt Stike Beacon Detected – 35[.]183[.]70[.]139:443

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 2021-11-29T05:39:06.715570

General Information

1059312768

Cloud Provider	Amazon
Cloud Region	ca-central-1
Service	AMAZON
Domains	amazonaws[.]com
Hostnames	ec2-35-183-70-139[.]ca-central-1[.]compute[.]amazonaws[.]com
HTTP Host	35[.]183[.]70[.]139
ISP	Amazon.com, Inc.
ORG	Amazon Data Services Canada
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	Apache
HTTP SITEMAP	N/A
HTTP SITEMAP HASH	N/A
HTTP TITLE	N/A
LOCATION (AREA CODE)	N/A
LOCATION (CITY)	Montréal
LOCATION (COUNTRY CODE)	CA
LOCATION (COUNTRY NAME)	Canada
LOCATION (LATITUDE)	45.50884
LOCATION (LONGITUDE)	-73.58781
LOCATION (POSTAL CODE)	N/A
SSL SERIAL
SSL EXPIRED	N/A
SSL FINGERPRINT (SHA1)	6ff8e5b6bd684e25c1a024632df5fe86077dd136
SSL ISSUED	20211119211700Z
SSL EXPIRES	20221119211700Z
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