Cobalt Stike Beacon Detected – 54[.]215[.]254[.]128:443

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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 2021-11-09T03:03:11.187704

Cobalt Strike
Cobalt Strike

General Information

3.06806909442943e+41
Cloud ProviderAmazon
Cloud Regionus-west-1
ServiceAMAZON
Domainsamazonaws[.]com
Hostnamesec2-54-215-254-128[.]us-west-1[.]compute[.]amazonaws[.]com
HTTP Host54[.]215[.]254[.]128
ISPAmazon.com, Inc.
ORGAmazon.com, Inc.
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)San Jose
LOCATION (COUNTRY CODE)US
LOCATION (COUNTRY NAME)United States
LOCATION (LATITUDE)37.33939
LOCATION (LONGITUDE)-121.89496
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)19f782d264dc56be2fd3d0c7d1f5b5bb1477059b
SSL ISSUED20211103090857Z
SSL EXPIRES20220201090856Z
SSL CYPHERECDHE-RSA-AES256-GCM-SHA384
SSL VERSIONTLSv1/SSLv3
SSL TRUST (REVOKED)N/A
TAGScloud


Cobalt Strike Beacon Information

Beacon TypeHTTPS
http-get.clientHost: dida2yvzt3b0v[.]cloudfront[.]net, Accept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Accept-Language: en-US,en;q=0[.]5, REF=ID=6Z4zQd, Cookie
http-post.clientHost: dida2yvzt3b0v[.]cloudfront[.]net, Accept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Accept-Language: en-US,en;q=0[.]5, U=6Z4zQd, REF=ID=, Cookie
DNS Beacon MaxDNSN/A
DNS Beacon IdleN/A
Beacon Jitter10
dns-beacon.strategy_fail_seconds-1
dns-beacon.strategy_rotate_seconds-1
dns-beacon.strategy_fail_x-1
HTTP GET URIdida2yvzt3b0v[.]cloudfront[.]net,/safebrowsing/WmpZG/awkJb3GbrhrIrxW4ukgIRTe8K6o3UoJHDOVJwPVu48
HTTP POST URI/safebrowsing/Yg-l/KAJltH6-5KGrtn4Eub6ENIIbrTqLdJw6AwW19V3oRm
Max GET Size1048576
Port443
post-ex.spawnto_x64%windir%\sysnative\gpupdate[.]exe
post-ex.spawnto_x86%windir%\syswow64\gpupdate[.]exe
process-inject.startrwx64
process-inject.userwx32
process-inject.allocatorN/A
proxy.behavior2 (Use IE settings)
sleeptime5000
useragent_headerMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3818.0 Safari/537.36 Edg/77.0.188.0
uses_cookies1
process-inject.executentdll.dll:RtlUserThreadStart, NtQueueApcThread-s, SetThreadContext, CreateRemoteThread, kernel32.dll:LoadLibraryA, RtlCreateUserThread
WatermarkN/A
Beacon Stage Cleanup1
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