Cobalt Stike Beacon Detected – 35[.]193[.]208[.]22:443

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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 2021-11-15T19:25:08.881914

Cobalt Strike
Cobalt Strike

General Information

146473198
Cloud ProviderGoogle
Cloud Regionus-central1
ServiceN/A
Domainsgoogleusercontent[.]com
Hostnames22[.]208[.]193[.]35[.]bc[.]googleusercontent[.]com
HTTP Host35[.]193[.]208[.]22
ISPGoogle LLC
ORGGoogle 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)Council Bluffs
LOCATION (COUNTRY CODE)US
LOCATION (COUNTRY NAME)United States
LOCATION (LATITUDE)41.26194
LOCATION (LONGITUDE)-95.86083
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)6ece5ece4192683d2d84e25b0ba7e04f9cb7eb7c
SSL ISSUED20150520182624Z
SSL EXPIRES20250517182624Z
SSL CYPHERECDHE-RSA-AES256-GCM-SHA384
SSL VERSIONTLSv1/SSLv3
SSL TRUST (REVOKED)N/A
TAGScloud, self-signed


Cobalt Strike Beacon Information

Beacon TypeHTTPS
http-get.clientAccept: */*, X-Aspnet-Version: 1[.]52, JSESSIONID=, nonce=, Cookie
http-post.clientAccept: */*, Content-Type: text/xml, X-Requested-With: XMLHttpRequest, X-Aspnet-Version: 1[.]52, JSESSIONID
DNS Beacon MaxDNSN/A
DNS Beacon IdleN/A
Beacon Jitter20
dns-beacon.strategy_fail_seconds-1
dns-beacon.strategy_rotate_seconds-1
dns-beacon.strategy_fail_x-1
HTTP GET URIbms-teams[.]azurewebsites[.]net,/index[.]html
HTTP POST URI/secure/upload
Max GET Size1048576
Port443
post-ex.spawnto_x64C:\Program Files\Internet Explorer\iexplore[.]exe
post-ex.spawnto_x86C:\Program Files (x86)\Internet Explorer\iexplore[.]exe
process-inject.startrwx64
process-inject.userwx32
process-inject.allocatorN/A
proxy.behavior2 (Use IE settings)
sleeptime60000
useragent_headerMozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko
uses_cookies1
process-inject.executeCreateThread, NtQueueApcThread-s, RtlCreateUserThread, SetThreadContext
Watermark871418955
Beacon Stage Cleanup1
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