Cobalt Stike Beacon Detected – 47[.]94[.]170[.]143:443

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 2021-11-13T22:48:41.322702

General Information

666273696

Cloud Provider
Cloud Region
Service
Domains	N/A
Hostnames	N/A
HTTP Host	47[.]94[.]170[.]143
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	N/A
SSL FINGERPRINT (SHA1)	4190ecc4ed9ee14dd8c4cacee360d60e17d6c565
SSL ISSUED	20211024044522Z
SSL EXPIRES	20221024044522Z
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: */*, Accept-Language: en-us, Accept-Encoding: text/plain, Content-Type: application/x-www-form-urltrytryd, SESSIONID=wqe454wqe2ds15ds4dsa5ds4, Cookie
http-post.client	Accept: */*, Accept-Language: en-us, Accept-Encoding: text/plain, Content-Type: application/x-www-form-urltrytryd, JSESSION=dsf5sd4f5e45fe4s65d4f856e4, Cookie
DNS Beacon MaxDNS	235
DNS Beacon Idle	134743044
Beacon Jitter	20
dns-beacon.strategy_fail_seconds	N/A
dns-beacon.strategy_rotate_seconds	N/A
dns-beacon.strategy_fail_x	N/A
HTTP GET URI	service-7101u8gd-1259312707[.]bj[.]apigw[.]tencentcs[.]com,/fwlink
HTTP POST URI	/submit.php
Max GET Size	1398104
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	3000
useragent_header	Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36
uses_cookies	1
process-inject.execute	CreateThread, SetThreadContext, CreateRemoteThread, RtlCreateUserThread
Watermark	N/A
Beacon Stage Cleanup	1