Cobalt Strike Beacon Detected – 139[.]155[.]136[.]125:443

Cobalt Strike Beacon Detection Alerts

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 2024-10-19T07:04:11.223153

Cobalt Strike
Cobalt Strike

General Information

2.8455229923506175e+47
Cloud ProviderTencent Cloud
Cloud RegionN/A
ServiceN/A
Domainsfdsfdsdfdsf[.]co
Hostnamesapi[.]fdsfdsdfdsf[.]co
HTTP Host139[.]155[.]136[.]125
ISPShenzhen Tencent Computer Systems Company Limited
ORGTencent cloud computing (Beijing) Co., Ltd.
OSN/A
HTTPN/A
HTTP HTML HASHN/A
HTTP LOCATION/
HTTP REDIRECTS
HTTP ROBOTSN/A
HTTP ROBOTS HASHN/A
HTTP SECURITY.TXTN/A
HTTP SECURITY.TXT HASHN/A
HTTP SERVERApache
HTTP SITEMAPN/A
HTTP SITEMAP HASHN/A
HTTP TITLEN/A
LOCATION (AREA CODE)N/A
LOCATION (CITY)Chengdu
LOCATION (COUNTRY CODE)CN
LOCATION (COUNTRY NAME)China
LOCATION (LATITUDE)30.66667
LOCATION (LONGITUDE)104.06667
LOCATION (POSTAL CODE)N/A
SSL SERIAL
SSL EXPIREDN/A
SSL FINGERPRINT (SHA1)32be0d8071c5f3f965f0c9a30dec16fd5c4d4616
SSL ISSUED20241014165400Z
SSL EXPIRES20391011165400Z
SSL CYPHERTLS_AES_256_GCM_SHA384
SSL VERSIONTLSv1.3
SSL TRUST (REVOKED)N/A
TAGScloud


Cobalt Strike Beacon Information

Beacon TypeN/A
http-get.clientConnection: close, Accept: image/jpeg, Accept-Encoding: br, wordpress_logged_in=, Cookie
http-post.clientConnection: close, Accept-Encoding: gzip, Content-Type: text/plain, __session__id=, Cookie
DNS Beacon MaxDNSN/A
DNS Beacon IdleN/A
Beacon JitterN/A
dns-beacon.strategy_fail_secondsN/A
dns-beacon.strategy_rotate_secondsN/A
dns-beacon.strategy_fail_xN/A
HTTP GET URI139[.]155[.]136[.]125,/Content
HTTP POST URIN/A
Max GET SizeN/A
PortN/A
post-ex.spawnto_x64%windir%\sysnative\dllhost[.]exe
post-ex.spawnto_x86%windir%\syswow64\dllhost[.]exe
process-inject.startrwxN/A
process-inject.userwxN/A
process-inject.allocatorN/A
proxy.behaviorN/A
sleeptimeN/A
useragent_headerN/A
uses_cookiesN/A
process-inject.executentdll:RtlUserThreadStart, CreateThread, NtQueueApcThread-s, CreateRemoteThread, RtlCreateUserThread
WatermarkN/A
Beacon Stage CleanupN/A

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