Cobalt Stike Beacon Detected – 5[.]39[.]221[.]25:443

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 2022-02-07T14:21:39.512637

Cobalt Strike
Cobalt Strike

General Information

2.810482983164554e+41
Cloud Provider
Cloud Region
Service
DomainsN/A
HostnamesN/A
HTTP Host5[.]39[.]221[.]25
ISPHOSTKEY B.V.
ORGHOSTKEY B.V.
OSN/A
HTTPN/A
HTTP HTML HASHN/A
HTTP LOCATION/
HTTP REDIRECTS
HTTP ROBOTSN/A
HTTP ROBOTS HASHN/A
HTTP SECURITY.TXTN/A
HTTP SECURITY.TXT HASHN/A
HTTP SERVERnginx/1.14.2
HTTP SITEMAPN/A
HTTP SITEMAP HASHN/A
HTTP TITLEN/A
LOCATION (AREA CODE)N/A
LOCATION (CITY)Amsterdam
LOCATION (COUNTRY CODE)NL
LOCATION (COUNTRY NAME)Netherlands
LOCATION (LATITUDE)52.37403
LOCATION (LONGITUDE)4.88969
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)91a8708939626b74ecdc6c451c2a50e62cbffad4
SSL ISSUED20220202144922Z
SSL EXPIRES20220503144921Z
SSL CYPHERECDHE-ECDSA-AES128-GCM-SHA256
SSL VERSIONTLSv1/SSLv3
SSL TRUST (REVOKED)N/A
TAGS


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