Cobalt Stike Beacon Detected – 39[.]101[.]70[.]93:443

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 2021-11-11T04:17:09.947779

General Information

95325938

Cloud Provider
Cloud Region
Service
Domains	N/A
Hostnames	N/A
HTTP Host	39[.]101[.]70[.]93
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)	dec85748231f4ce9fceddacdf70e406ddfbe07af
SSL ISSUED	20211025082526Z
SSL EXPIRES	20221025082526Z
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,*/*;q=0[.]8, Host: sso[.]bytedance[.]com, Referer: http://code[.]jquery[.]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: sso[.]bytedance[.]com, Referer: http://code[.]jquery[.]com/, Accept-Encoding: gzip, deflate, __cfduid
DNS Beacon MaxDNS	N/A
DNS Beacon Idle	N/A
Beacon Jitter	50
dns-beacon.strategy_fail_seconds	-1
dns-beacon.strategy_rotate_seconds	-1
dns-beacon.strategy_fail_x	-1
HTTP GET URI	122[.]246[.]6[.]14,/obj/cdn-static-resource/ies/resource/jquery-3[.]3[.]1[.]min[.]js,122[.]228[.]0[.]143,/obj/cdn-static-resource/ies/resource/jquery-3[.]3[.]1[.]min[.]js,222[.]186[.]49[.]35,/obj/cdn-static-resource/ies/resource/jquery-3[.]3[.]1[.]min[.]js
HTTP POST URI	/obj/cdn-static-resource/ies/resource/jquery-3.3.2.min.js
Max GET Size	1403644
Port	443
post-ex.spawnto_x64	%windir%\sysnative\bootcfg[.]exe
post-ex.spawnto_x86	%windir%\syswow64\bootcfg[.]exe
process-inject.startrwx	4
process-inject.userwx	32
process-inject.allocator	N/A
proxy.behavior	2 (Use IE settings)
sleeptime	13798
useragent_header	Mozilla/5.0 (Windows NT 6.3; Win64; x64; Trident/7.0; ASTE; rv:11.0) like Gecko
uses_cookies	1
process-inject.execute	ntdll.dll:RtlUserThreadStart, NtQueueApcThread-s, SetThreadContext, CreateRemoteThread, kernel32.dll:LoadLibraryA, RtlCreateUserThread
Watermark	1234567890
Beacon Stage Cleanup	1