Cobalt Stike Beacon Detected – 185[.]189[.]151[.]107:443

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 2021-11-10T16:42:40.018122

Cobalt Strike
Cobalt Strike

General Information

1774445130
Cloud Provider
Cloud Region
Service
DomainsN/A
HostnamesN/A
HTTP Host185[.]189[.]151[.]107
ISPDatasource AG
ORGDatasource AG
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 SERVERESF
HTTP SITEMAPN/A
HTTP SITEMAP HASHN/A
HTTP TITLEN/A
LOCATION (AREA CODE)N/A
LOCATION (CITY)Zürich
LOCATION (COUNTRY CODE)CH
LOCATION (COUNTRY NAME)Switzerland
LOCATION (LATITUDE)47.36667
LOCATION (LONGITUDE)8.55
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)1bdd035ae3fdd2c7c219f857d730e58fc72b7070
SSL ISSUED20210804120036Z
SSL EXPIRES20220401120036Z
SSL CYPHERECDHE-RSA-AES256-GCM-SHA384
SSL VERSIONTLSv1/SSLv3
SSL TRUST (REVOKED)N/A
TAGSself-signed


Cobalt Strike Beacon Information

Beacon TypeHTTPS
http-get.clientHost: yandexdisk[.]ru, Connection: close, Accept-Language: en-US, wordpress_52238558e930f1ec699e4f12ab015a4f=, Cookie, ok=true
http-post.clientHost: yandexdisk[.]ru, Connection: close, Content-Type: application/x-www-form-urlencoded, confirmed=, __session__id=, Cookie
DNS Beacon MaxDNSN/A
DNS Beacon IdleN/A
Beacon Jitter41
dns-beacon.strategy_fail_secondsN/A
dns-beacon.strategy_rotate_secondsN/A
dns-beacon.strategy_fail_xN/A
HTTP GET URI185[.]189[.]151[.]107,/ak
HTTP POST URI/boxes
Max GET Size2796804
Port443
post-ex.spawnto_x64%windir%\sysnative\svchost[.]exe
post-ex.spawnto_x86%windir%\syswow64\svchost[.]exe
process-inject.startrwx4
process-inject.userwx32
process-inject.allocatorN/A
proxy.behavior2 (Use IE settings)
sleeptime22113
useragent_headerMozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/601.3.9 (KHTML, like Gecko) Version/9.0.2 Safari/601.3.9
uses_cookies1
process-inject.executeCreateThread, RtlCreateUserThread, CreateRemoteThread
Watermark557890444
Beacon Stage Cleanup1