Cobalt Stike Beacon Detected – 1[.]15[.]21[.]153:443

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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 2021-11-14T21:32:07.516449

Cobalt Strike
Cobalt Strike

General Information

1390339557
Cloud Provider
Cloud Region
Service
DomainsN/A
HostnamesN/A
HTTP Host1[.]15[.]21[.]153
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)9e63f282ff6831d1e12b37511e850bc346816cf8
SSL ISSUED20211018061711Z
SSL EXPIRES20220116061711Z
SSL CYPHERECDHE-RSA-AES256-GCM-SHA384
SSL VERSIONTLSv1/SSLv3
SSL TRUST (REVOKED)N/A
TAGSself-signed


Cobalt Strike Beacon Information

Beacon TypeHTTPS
http-get.clientReferer: http://www[.]google[.]com, Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0[.]9,text/plain;q=0[.]8,image/png,*/*;q=0[.]5, Accept-Language: en-us,en;q=0[.]5, Cookie
http-post.clientContent-Type: application/octet-stream, id
DNS Beacon MaxDNSN/A
DNS Beacon IdleN/A
Beacon JitterN/A
dns-beacon.strategy_fail_seconds-1
dns-beacon.strategy_rotate_seconds-1
dns-beacon.strategy_fail_x-1
HTTP GET URI1[.]15[.]21[.]153,/wp06/wp-includes/po[.]php
HTTP POST URI/includes/phpmailer/class.pop3.php
Max GET Size1398254
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/5.0 (Macintosh; Intel Mac OS X 10.15; rv:92.0) Gecko/20100101 Firefox/92.0
uses_cookies1
process-inject.executeCreateThread, SetThreadContext, CreateRemoteThread, RtlCreateUserThread
Watermark1234567890
Beacon Stage CleanupN/A
Available for Amazon Prime