Cobalt Stike Beacon Detected – 119[.]45[.]118[.]86:443

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 2021-11-17T05:26:48.235616

Cobalt Strike
Cobalt Strike

General Information

956845552
Cloud Provider
Cloud Region
Service
DomainsN/A
HostnamesN/A
HTTP Host119[.]45[.]118[.]86
ISPShenzhen Tencent Computer Systems Company Limited
ORGTencent cloud computing (Beijing) 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)Beijing
LOCATION (COUNTRY CODE)CN
LOCATION (COUNTRY NAME)China
LOCATION (LATITUDE)39.9075
LOCATION (LONGITUDE)116.39723
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)30b363d2ebb1372d32703c5a953531b46e6ea487
SSL ISSUED20211114101517Z
SSL EXPIRES20221114101517Z
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: */*, Accept-Language: en-us, Accept-Encoding: text/plain, Content-Type: application/x-www-form-urltrytryd, SESSIONID=wqe454wqe2ds15ds4dsa5ds4, Cookie
http-post.clientAccept: */*, Accept-Language: en-us, Accept-Encoding: text/plain, Content-Type: application/x-www-form-urltrytryd, JSESSION=dsf5sd4f5e45fe4s65d4f856e4, Cookie
DNS Beacon MaxDNSN/A
DNS Beacon IdleN/A
Beacon Jitter5
dns-beacon.strategy_fail_secondsN/A
dns-beacon.strategy_rotate_secondsN/A
dns-beacon.strategy_fail_xN/A
HTTP GET URIservice-ndh4t0g7-1258128533[.]bj[.]apigw[.]tencentcs[.]com,/ca
HTTP POST URI/checkcode.php
Max GET Size1398104
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)
sleeptime30000
useragent_headerMozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
uses_cookies1
process-inject.executeCreateThread, SetThreadContext, CreateRemoteThread, RtlCreateUserThread
Watermark1
Beacon Stage Cleanup1