Cobalt Stike Beacon Detected – 192[.]34[.]109[.]100:443

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 2021-11-08T23:34:47.556113

General Information

3.583262583403842e+41

Cloud Provider
Cloud Region
Service
Domains	N/A
Hostnames	N/A
HTTP Host	192[.]34[.]109[.]100
ISP	Wowrack.com
ORG	Wowrack.com
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	cloudflare
HTTP SITEMAP	N/A
HTTP SITEMAP HASH	N/A
HTTP TITLE	N/A
LOCATION (AREA CODE)	N/A
LOCATION (CITY)	Seattle
LOCATION (COUNTRY CODE)	US
LOCATION (COUNTRY NAME)	United States
LOCATION (LATITUDE)	47.60621
LOCATION (LONGITUDE)	-122.33207
LOCATION (POSTAL CODE)	N/A
SSL SERIAL
SSL EXPIRED	N/A
SSL FINGERPRINT (SHA1)	3728822f4db708db14454cd56c38dfef6f655b0d
SSL ISSUED	20211024131017Z
SSL EXPIRES	20220122131016Z
SSL CYPHER	ECDHE-RSA-AES256-GCM-SHA384
SSL VERSION	TLSv1/SSLv3
SSL TRUST (REVOKED)	N/A
TAGS

Cobalt Strike Beacon Information

Beacon Type	HTTPS
http-get.client	Host: easyupdatepro[.]com, Connection: close, Accept-Language: en-US, made_write_conn=, Cookie, userspage=true
http-post.client	Host: easyupdatepro[.]com, Connection: close, Accept-Encoding: gzip, Content-Type: text/plain, __session__id=, Cookie
DNS Beacon MaxDNS	N/A
DNS Beacon Idle	N/A
Beacon Jitter	43
dns-beacon.strategy_fail_seconds	N/A
dns-beacon.strategy_rotate_seconds	N/A
dns-beacon.strategy_fail_x	N/A
HTTP GET URI	192[.]34[.]109[.]100,/ak
HTTP POST URI	/br
Max GET Size	2796542
Port	443
post-ex.spawnto_x64	%windir%\sysnative\WUAUCLT[.]exe
post-ex.spawnto_x86	%windir%\syswow64\WUAUCLT[.]exe
process-inject.startrwx	4
process-inject.userwx	32
process-inject.allocator	N/A
proxy.behavior	2 (Use IE settings)
sleeptime	60002
useragent_header	Mozilla/5.0 (Linux; Android 8.0.0; SM-G960F Build/R16NW) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202
uses_cookies	1
process-inject.execute	CreateThread, RtlCreateUserThread, CreateRemoteThread
Watermark	305419776
Beacon Stage Cleanup	1