Cobalt Stike Beacon Detected – 43[.]224[.]33[.]55:8443

Cobalt Strike Beacon Detection Alerts

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 2021-12-18T07:51:32.288481

Cobalt Strike
Cobalt Strike

General Information

14452592763008168000
Cloud Provider
Cloud Region
Service
Domainsvultr[.]com
Hostnames43[.]224[.]33[.]55[.]vultr[.]com
HTTP Host43[.]224[.]33[.]55
ISPThe Constant Company, LLC
ORGThe Constant Company, LLC
OSN/A
HTTP404 Not Found

404 Not Found


nginx/1.16.0
HTTP HTML HASH-82986527
HTTP LOCATION/
HTTP REDIRECTS
HTTP ROBOTSN/A
HTTP ROBOTS HASHN/A
HTTP SECURITY.TXTN/A
HTTP SECURITY.TXT HASHN/A
HTTP SERVERN/A
HTTP SITEMAPN/A
HTTP SITEMAP HASHN/A
HTTP TITLE404 Not Found
LOCATION (AREA CODE)N/A
LOCATION (CITY)Tokyo
LOCATION (COUNTRY CODE)JP
LOCATION (COUNTRY NAME)Japan
LOCATION (LATITUDE)35.6895
LOCATION (LONGITUDE)139.69171
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDtrue
SSL FINGERPRINT (SHA1)3e86a0afd84afc59f22a313aab684605b6cf9203
SSL ISSUED20200319073649Z
SSL EXPIRES20200617073649Z
SSL CYPHERECDHE-RSA-AES256-GCM-SHA384
SSL VERSIONTLSv1/SSLv3
SSL TRUST (REVOKED)N/A
TAGSself-signed


Cobalt Strike Beacon Information

Beacon TypeN/A
http-get.client
http-post.client
DNS Beacon MaxDNSN/A
DNS Beacon IdleN/A
Beacon JitterN/A
dns-beacon.strategy_fail_secondsN/A
dns-beacon.strategy_rotate_secondsN/A
dns-beacon.strategy_fail_xN/A
HTTP GET URI
HTTP POST URIN/A
Max GET SizeN/A
PortN/A
post-ex.spawnto_x64
post-ex.spawnto_x86
process-inject.startrwxN/A
process-inject.userwxN/A
process-inject.allocatorN/A
proxy.behaviorN/A
sleeptimeN/A
useragent_headerN/A
uses_cookiesN/A
process-inject.execute
WatermarkN/A
Beacon Stage CleanupN/A