Cobalt Stike Beacon Detected – 18[.]136[.]107[.]228:443

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 2021-11-29T21:48:43.699986

General Information

25265960

Cloud Provider	Amazon
Cloud Region	ap-southeast-1
Service	AMAZON
Domains	amazonaws[.]com
Hostnames	ec2-18-136-107-228[.]ap-southeast-1[.]compute[.]amazonaws[.]com
HTTP Host	18[.]136[.]107[.]228
ISP	Amazon.com, Inc.
ORG	Amazon Data Services Singapore
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)	Singapore
LOCATION (COUNTRY CODE)	SG
LOCATION (COUNTRY NAME)	Singapore
LOCATION (LATITUDE)	1.28967
LOCATION (LONGITUDE)	103.85007
LOCATION (POSTAL CODE)	N/A
SSL SERIAL
SSL EXPIRED	N/A
SSL FINGERPRINT (SHA1)	a175fde6c722d0aecb570b1f50498060a75d4e04
SSL ISSUED	20211129091221Z
SSL EXPIRES	20221129091221Z
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