Cobalt Stike Beacon Detected – 185[.]198[.]57[.]155:8443

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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 2021-11-10T03:02:39.076310

Cobalt Strike
Cobalt Strike

General Information

1739766966
Cloud Provider
Cloud Region
Service
Domainsswercam[.]info
Hostnameshgw[.]swercam[.]info
HTTP Host185[.]198[.]57[.]155
ISPHost Sailor Ltd
ORGEU HOSTSAILOR 20140124
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 SERVERN/A
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)3dedf48397ce01bf50017b33b572f2dfd073036a
SSL ISSUED20211102051144Z
SSL EXPIRES20221102051144Z
SSL CYPHERECDHE-RSA-AES256-GCM-SHA384
SSL VERSIONTLSv1/SSLv3
SSL TRUST (REVOKED)N/A
TAGSself-signed


Cobalt Strike Beacon Information

Beacon TypeHTTPS
http-get.clientAccept: */*, [.]cab
http-post.clientAccept: */*, download[.]googleteam[.]com/c/, X-Update-Message, [.]cab
DNS Beacon MaxDNS255
DNS Beacon IdleN/A
Beacon Jitter20
dns-beacon.strategy_fail_secondsN/A
dns-beacon.strategy_rotate_secondsN/A
dns-beacon.strategy_fail_xN/A
HTTP GET URI185[.]198[.]57[.]155,/pagead/id
HTTP POST URI/pagead/name
Max GET Size1048576
Port8443
post-ex.spawnto_x64%windir%\sysnative\rundll32[.]exe
post-ex.spawnto_x86%windir%\syswow64\rundll32[.]exe
process-inject.startrwx64
process-inject.userwx64
process-inject.allocatorN/A
proxy.behavior2 (Use IE settings)
sleeptime2000
useragent_headerMozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/5.0)
uses_cookiesN/A
process-inject.executeCreateThread, SetThreadContext, CreateRemoteThread, RtlCreateUserThread
Watermark305419896
Beacon Stage CleanupN/A
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