Cobalt Stike Beacon Detected – 5[.]39[.]222[.]193:443

Cobalt Strike Beacon Detection Alerts

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 2021-11-15T16:18:58.997170

Cobalt Strike
Cobalt Strike

General Information

3.5265117534719634e+41
Cloud Provider
Cloud Region
Service
DomainsN/A
HostnamesN/A
HTTP Host5[.]39[.]222[.]193
ISPHOSTKEY B.V.
ORGHOSTKEY B.V.
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 SERVERApache
HTTP SITEMAPN/A
HTTP SITEMAP HASHN/A
HTTP TITLEN/A
LOCATION (AREA CODE)N/A
LOCATION (CITY)Soest
LOCATION (COUNTRY CODE)NL
LOCATION (COUNTRY NAME)Netherlands
LOCATION (LATITUDE)52.17333
LOCATION (LONGITUDE)5.29167
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)8c2c5a3e9c1c399d4279e0b0ffe888e286c3f033
SSL ISSUED20211104155735Z
SSL EXPIRES20220202155734Z
SSL CYPHERECDHE-RSA-AES256-GCM-SHA384
SSL VERSIONTLSv1/SSLv3
SSL TRUST (REVOKED)N/A
TAGS


Cobalt Strike Beacon Information

Beacon TypeHTTPS
http-get.clientAccept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Referer: http://code[.]jquery[.]com/, Accept-Encoding: gzip, deflate, __cfduid=, Cookie
http-post.clientAccept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Referer: http://code[.]jquery[.]com/, Accept-Encoding: gzip, deflate, __cfduid
DNS Beacon MaxDNSN/A
DNS Beacon IdleN/A
Beacon Jitter37
dns-beacon.strategy_fail_seconds-1
dns-beacon.strategy_rotate_seconds-1
dns-beacon.strategy_fail_x-1
HTTP GET URIminutesecuritybsness[.]com,/jquery-3[.]3[.]1[.]min[.]js,5[.]39[.]222[.]193,/jquery-3[.]3[.]1[.]min[.]js
HTTP POST URI/jquery-3.3.2.min.js
Max GET Size1403644
Port443
post-ex.spawnto_x64%windir%\sysnative\dllhost[.]exe
post-ex.spawnto_x86%windir%\syswow64\dllhost[.]exe
process-inject.startrwx4
process-inject.userwx32
process-inject.allocator1
proxy.behavior2 (Use IE settings)
sleeptime45000
useragent_headerMozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko
uses_cookies1
process-inject.executentdll:RtlUserThreadStart, CreateThread, NtQueueApcThread-s, CreateRemoteThread, RtlCreateUserThread
WatermarkN/A
Beacon Stage Cleanup1