Cobalt Stike Beacon Detected – 111[.]229[.]30[.]135:443

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 2021-11-10T13:58:44.122620

General Information

1948544155

Cloud Provider	Tencent Cloud
Cloud Region	N/A
Service	N/A
Domains	N/A
Hostnames	N/A
HTTP Host	111[.]229[.]30[.]135
ISP	Shenzhen Tencent Computer Systems Company Limited
ORG	Tencent cloud computing (Beijing) Co., Ltd.
OS	N/A
HTTP	N/A
HTTP HTML HASH	N/A
HTTP LOCATION	/
HTTP REDIRECTS
HTTP ROBOTS	N/A
HTTP ROBOTS HASH	N/A
HTTP SECURITY.TXT	N/A
HTTP SECURITY.TXT HASH	N/A
HTTP SERVER	Apache
HTTP SITEMAP	N/A
HTTP SITEMAP HASH	N/A
HTTP TITLE	N/A
LOCATION (AREA CODE)	N/A
LOCATION (CITY)	Guangzhou
LOCATION (COUNTRY CODE)	CN
LOCATION (COUNTRY NAME)	China
LOCATION (LATITUDE)	23.11667
LOCATION (LONGITUDE)	113.25
LOCATION (POSTAL CODE)	N/A
SSL SERIAL
SSL EXPIRED	true
SSL FINGERPRINT (SHA1)	97884c0c93c9b2bc00b17bc9b1fccbe69d140cb2
SSL ISSUED	20210115105300Z
SSL EXPIRES	20210415105300Z
SSL CYPHER	ECDHE-RSA-AES128-GCM-SHA256
SSL VERSION	TLSv1/SSLv3
SSL TRUST (REVOKED)	N/A
TAGS	cloud, self-signed

Cobalt Strike Beacon Information

Beacon Type	HTTPS
http-get.client	Accept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Host: www[.]ccb[.]com, Referer: http://www[.]ccb[.]com/, Accept-Encoding: gzip, deflate, __cfduid=, Cookie
http-post.client	Accept: text/html,application/xhtml+xml,application/xml;q=0[.]9,*/*;q=0[.]8, Host: www[.]ccb[.]com, Referer: http://www[.]ccb[.]com/, Accept-Encoding: gzip, deflate, __cfduid
DNS Beacon MaxDNS	255
DNS Beacon Idle	N/A
Beacon Jitter	37
dns-beacon.strategy_fail_seconds	N/A
dns-beacon.strategy_rotate_seconds	N/A
dns-beacon.strategy_fail_x	N/A
HTTP GET URI	111[.]229[.]30[.]135,/jquery-3[.]3[.]1[.]min[.]js
HTTP POST URI	/jquery-3.3.2.min.js
Max GET Size	1403644
Port	443
post-ex.spawnto_x64	%windir%\sysnative\Werfault[.]exe
post-ex.spawnto_x86	%windir%\syswow64\Werfault[.]exe
process-inject.startrwx	4
process-inject.userwx	32
process-inject.allocator	1
proxy.behavior	2 (Use IE settings)
sleeptime	45000
useragent_header	Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko
uses_cookies	1
process-inject.execute	ntdll:RtlUserThreadStart, CreateThread, NtQueueApcThread-s, CreateRemoteThread, RtlCreateUserThread
Watermark	N/A
Beacon Stage Cleanup	1