Cobalt Stike Beacon Detected – 202[.]182[.]101[.]162:8443

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 2021-11-10T02:45:17.112317

General Information

2.0224908472473052e+47

Cloud Provider	Vultr
Cloud Region	N/A
Service	N/A
Domains	vultr[.]com
Hostnames	202[.]182[.]101[.]162[.]vultr[.]com
HTTP Host	202[.]182[.]101[.]162
ISP	The Constant Company, LLC
ORG	The Constant Company, LLC
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)	Tokyo
LOCATION (COUNTRY CODE)	JP
LOCATION (COUNTRY NAME)	Japan
LOCATION (LATITUDE)	35.6895
LOCATION (LONGITUDE)	139.69171
LOCATION (POSTAL CODE)	N/A
SSL SERIAL
SSL EXPIRED	N/A
SSL FINGERPRINT (SHA1)	b5e75de96c92279c0e16f839113d18cbca917c5f
SSL ISSUED	20210901021400Z
SSL EXPIRES	20360828021400Z
SSL CYPHER	ECDHE-RSA-AES256-GCM-SHA384
SSL VERSION	TLSv1/SSLv3
SSL TRUST (REVOKED)	N/A
TAGS	cloud

Cobalt Strike Beacon Information

Beacon Type	HTTPS
http-get.client	utmac=UA-2202604-2, utmcn=1, utmcs=ISO-8859-1, utmsr=1280×1024, utmsc=32-bit, utmul=en-US, Host: www[.]bestdeskguide112233[.]tk, __utma, utmcc
http-post.client	Content-Type: application/octet-stream, UA-220, -2, utmac, utmcn=1, utmcs=ISO-8859-1, utmsr=1280×1024, utmsc=32-bit, utmul=en-US, Host: www[.]bestdeskguide112233[.]tk
DNS Beacon MaxDNS	N/A
DNS Beacon Idle	N/A
Beacon Jitter	37
dns-beacon.strategy_fail_seconds	-1
dns-beacon.strategy_rotate_seconds	-1
dns-beacon.strategy_fail_x	-1
HTTP GET URI	www[.]bestdeskguide112233[.]tk,/__utm[.]gif
HTTP POST URI	/___utm.gif
Max GET Size	1048616
Port	8443
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	10000
useragent_header	Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Win64; x64; Trident/6.0; MATMJS)
uses_cookies	N/A
process-inject.execute	CreateThread, SetThreadContext, CreateRemoteThread, RtlCreateUserThread
Watermark	426352781
Beacon Stage Cleanup	N/A