Cobalt Stike Beacon Detected – 167[.]99[.]51[.]149:443

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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 2021-11-10T09:15:57.790498

Cobalt Strike
Cobalt Strike

General Information

3.219478074582346e+41
Cloud ProviderDigitalOcean
Cloud Regionus-nj
ServiceN/A
DomainsN/A
HostnamesN/A
HTTP Host167[.]99[.]51[.]149
ISPDigitalOcean, LLC
ORGDigitalOcean, 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)Clifton
LOCATION (COUNTRY CODE)US
LOCATION (COUNTRY NAME)United States
LOCATION (LATITUDE)40.8344
LOCATION (LONGITUDE)-74.1377
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)c4ee5d361d0ad0c90add33dcc856a5618f910deb
SSL ISSUED20211108183819Z
SSL EXPIRES20220206183818Z
SSL CYPHERECDHE-RSA-AES256-GCM-SHA384
SSL VERSIONTLSv1/SSLv3
SSL TRUST (REVOKED)N/A
TAGScloud


Cobalt Strike Beacon Information

Beacon TypeHTTPS
http-get.clientAccept: */*, Host: www[.]microsoft[.]com, session-token=, skin=noskin;, csm-hit=s-24KU11BB82RZGH3D8BDK|6417896017566, Cookie
http-post.clientAccept: */*, Content-Type: text/xml, X-Requested-With: XMLHttpRequest, Host: www[.]microsoft[.]com, sz=160×600, oe=oe=ISO-8859-1;, sn, s=3717
DNS Beacon MaxDNSN/A
DNS Beacon IdleN/A
Beacon Jitter35
dns-beacon.strategy_fail_seconds-1
dns-beacon.strategy_rotate_seconds-1
dns-beacon.strategy_fail_x-1
HTTP GET URIex-update10[.]microsoft-essentials[.]com,/u/vercheck,167[.]99[.]51[.]149,/u/vercheck
HTTP POST URI/u/version_status
Max GET Size1048576
Port443
post-ex.spawnto_x64%windir%\sysnative\svchost[.]exe -k netsvcs
post-ex.spawnto_x86%windir%\syswow64\svchost[.]exe -k netsvcs
process-inject.startrwx64
process-inject.userwx32
process-inject.allocatorN/A
proxy.behavior2 (Use IE settings)
sleeptime12000
useragent_headerMicrosoft Windows Update Agent
uses_cookies1
process-inject.executentdll.dll:RtlUserThreadStart, SetThreadContext, RtlCreateUserThread
Watermark109155718
Beacon Stage CleanupN/A
Available for Amazon Prime