Cobalt Stike Beacon Detected – 39[.]96[.]196[.]130:443

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 2021-11-13T23:12:57.623258

General Information

1255328323

Cloud Provider
Cloud Region
Service
Domains	N/A
Hostnames	N/A
HTTP Host	39[.]96[.]196[.]130
ISP	Hangzhou Alibaba Advertising Co.,Ltd.
ORG	Aliyun Computing 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	N/A
HTTP SITEMAP	N/A
HTTP SITEMAP HASH	N/A
HTTP TITLE	N/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 EXPIRED	true
SSL FINGERPRINT (SHA1)	4ffe1d18a31f08112cd44798eb1fd47fa67551a0
SSL ISSUED	20210419103114Z
SSL EXPIRES	20210718103114Z
SSL CYPHER	ECDHE-RSA-AES256-GCM-SHA384
SSL VERSION	TLSv1/SSLv3
SSL TRUST (REVOKED)	N/A
TAGS	self-signed

Cobalt Strike Beacon Information

Beacon Type	HTTPS
http-get.client	Accept: text/html,application/xhtml+xml,application/xml;q=0[.]9,image/webp,image/apng,*/*;q=0[.]8, Host: test[.]163[.]com, test=, __guid=456;, ;QiHooGUID=123;, Cookie
http-post.client	Accept: text/html,application/xhtml+xml,application/xml;q=0[.]9,image/webp,image/apng,*/*;q=0[.]8, Content-Type: text/xml, X-Requested-With: XMLHttpRequest, Host: test[.]163[.]com, nu, a=1234
DNS Beacon MaxDNS	255
DNS Beacon Idle	N/A
Beacon Jitter	50
dns-beacon.strategy_fail_seconds	N/A
dns-beacon.strategy_rotate_seconds	N/A
dns-beacon.strategy_fail_x	N/A
HTTP GET URI	39[.]96[.]196[.]130,/testget/
HTTP POST URI	/testpost/
Max GET Size	1048576
Port	443
post-ex.spawnto_x64	%windir%\sysnative\rundll32[.]exe
post-ex.spawnto_x86	%windir%\syswow64\rundll32[.]exe
process-inject.startrwx	64
process-inject.userwx	64
process-inject.allocator	N/A
proxy.behavior	2 (Use IE settings)
sleeptime	5000
useragent_header	Mozilla/5.0 (Linux; Android 4.1.1; Nexus 7 Build/JRO03D) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.166 Safari
uses_cookies	1
process-inject.execute	CreateThread, SetThreadContext, CreateRemoteThread, RtlCreateUserThread
Watermark	305419896
Beacon Stage Cleanup	N/A