Cobalt Stike Beacon Detected – 155[.]94[.]163[.]137:443

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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 2021-11-15T01:08:45.819995

Cobalt Strike
Cobalt Strike

General Information

776358700
Cloud Provider
Cloud Region
Service
Domainsquadranet[.]com
Hostnames155[.]94[.]163[.]137[.]static[.]quadranet[.]com
HTTP Host155[.]94[.]163[.]137
ISPQuadraNet Enterprises LLC
ORGQuadraNet Enterprises LLC
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)Los Angeles
LOCATION (COUNTRY CODE)US
LOCATION (COUNTRY NAME)United States
LOCATION (LATITUDE)34.0443
LOCATION (LONGITUDE)-118.2509
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)10cf6bdc3f8568706c177c1644f04a5c51cec482
SSL ISSUED20211114234143Z
SSL EXPIRES20221114234143Z
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: */*, Accept-Language: en-us, Accept-Encoding: text/plain, Content-Type: application/x-www-form-urltrytryd, SESSIONID=wqe454wqe2ds15ds4dsa5ds4, Cookie
http-post.clientAccept: */*, Accept-Language: en-us, Accept-Encoding: text/plain, Content-Type: application/x-www-form-urltrytryd, JSESSION=dsf5sd4f5e45fe4s65d4f856e4, Cookie
DNS Beacon MaxDNS255
DNS Beacon IdleN/A
Beacon Jitter5
dns-beacon.strategy_fail_secondsN/A
dns-beacon.strategy_rotate_secondsN/A
dns-beacon.strategy_fail_xN/A
HTTP GET URIservice-edoacf49-1258012110[.]bj[.]apigw[.]tencentcs[.]com,/pixel[.]gif
HTTP POST URI/upgrade.php
Max GET Size1398104
Port443
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)
sleeptime30000
useragent_headerMozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
uses_cookies1
process-inject.executeCreateThread, SetThreadContext, CreateRemoteThread, RtlCreateUserThread
WatermarkN/A
Beacon Stage Cleanup1
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