Cobalt Stike Beacon Detected – 104[.]243[.]38[.]235:443

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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 2021-11-09T17:28:33.712107

Cobalt Strike
Cobalt Strike

General Information

11205388891789916000
Cloud Provider
Cloud Region
Service
DomainsN/A
HostnamesN/A
HTTP Host104[.]243[.]38[.]235
ISPReliableSite.Net LLC
ORGLee Benson
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)New York City
LOCATION (COUNTRY CODE)US
LOCATION (COUNTRY NAME)United States
LOCATION (LATITUDE)40.71427
LOCATION (LONGITUDE)-74.00597
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)69e035727571f89570395b0a08150160e5849a23
SSL ISSUED20211105175016Z
SSL EXPIRES20221105175016Z
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: */*, Cookie: MicrosoftApplicationsTelemetryDeviceId=95c18d648-4d871ce9854;ClientId=1C0FOU6C5D910F9;MSPAuth=3EkAjDBDKjI;xid=73980bf7;wla42=ZG0yMPkzA2KjEs, wz, path=/calendar
http-post.clientAccept: */*, wa, wla42=, xid=730bf7;, MSPAuth=3EkAjDKjI;, ClientId=1C0F6C5D910F9;, MicrosoftApplicationsTelemetryDeviceId=9645c18d8-4dce9854;, 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 URIindostebd443[.]global[.]ssl[.]fastly[.]net,/owa/oHK6gBs2s72ms9fwdkatbCDdp928-YedRPYSyiAhUeSt
HTTP POST URI/owa/n5pPOdPpSMJ6QVK28rXDExVSwdhoew
Max GET Size2097152
Port443
post-ex.spawnto_x64%windir%\sysnative\gpresult[.]exe
post-ex.spawnto_x86%windir%\syswow64\gpresult[.]exe
process-inject.startrwx64
process-inject.userwx32
process-inject.allocator1
proxy.behavior2 (Use IE settings)
sleeptime73000
useragent_headerMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/538.36 (KHTML, like Gecko) Chrome/87.0.4242.0 Safari/537.36
uses_cookies1
process-inject.executentdll.dll:RtlUserThreadStart, NtQueueApcThread-s, SetThreadContext, CreateRemoteThread, kernel32.dll:LoadLibraryA, RtlCreateUserThread
Watermark1580103824
Beacon Stage Cleanup1
Available for Amazon Prime