Cobalt Stike Beacon Detected – 47[.]99[.]72[.]130:443

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 2021-11-09T06:34:53.591451

Cobalt Strike
Cobalt Strike

General Information

689205749
Cloud Provider
Cloud Region
Service
DomainsN/A
HostnamesN/A
HTTP Host47[.]99[.]72[.]130
ISPHangzhou Alibaba Advertising Co.,Ltd.
ORGAliyun Computing Co., LTD
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)Hangzhou
LOCATION (COUNTRY CODE)CN
LOCATION (COUNTRY NAME)China
LOCATION (LATITUDE)30.29365
LOCATION (LONGITUDE)120.16142
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)d1f7350b70916e80d85daaa13e0a6ad9e765ff3f
SSL ISSUED20211013082905Z
SSL EXPIRES20221013082905Z
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: www[.]bing[.]com, Accept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Cookie: DUP=Q=GpO1nJpMnam4UllEfmeMdg2&T=283767088&A=1&IG, q, go=Search, qs=bs, form=QBRE
http-post.clientHost: www[.]bing[.]com, Accept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Cookie: DUP=Q=GpO1nJpMnam4UllEfmeMdg2&T=283767088&A=1&IG, q, go=Search, qs=bs, form
DNS Beacon MaxDNS235
DNS Beacon Idle134743044
Beacon Jitter20
dns-beacon.strategy_fail_secondsN/A
dns-beacon.strategy_rotate_secondsN/A
dns-beacon.strategy_fail_xN/A
HTTP GET URIwww[.]microport[.]com,/search/
HTTP POST URI/Search/
Max GET Size2098660
Port443
post-ex.spawnto_x64%windir%\sysnative\rundll32[.]exe
post-ex.spawnto_x86%windir%\syswow64\rundll32[.]exe
process-inject.startrwx64
process-inject.userwx64
process-inject.allocatorN/A
proxy.behavior2 (Use IE settings)
sleeptime60000
useragent_headerMozilla/5.0 (Windows NT 10.0; Win64; x64; rv:74.0) Gecko/20100101 Firefox/74.0
uses_cookies1
process-inject.executeCreateThread, SetThreadContext, CreateRemoteThread, RtlCreateUserThread
Watermark305419896
Beacon Stage CleanupN/A