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 2022-04-04T13:05:00.608084
Cobalt Strike
General Information
Cloud Provider Vultr
Cloud Region N/A
Service N/A
Domains vultrusercontent[.]com, microsoft-officebook[.]tk
Hostnames 45[.]77[.]240[.]178[.]vultrusercontent[.]com, microsoft-officebook[.]tk
HTTP Host 45[.]77[.]240[.]178
ISP The Constant Company, LLC
ORG Vultr Holdings, 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 Apache
HTTP SITEMAP N/A
HTTP SITEMAP HASH N/A
HTTP TITLE N/A
LOCATION (AREA CODE) N/A
LOCATION (CITY) Singapore
LOCATION (COUNTRY CODE) SG
LOCATION (COUNTRY NAME) Singapore
LOCATION (LATITUDE) 1.28967
LOCATION (LONGITUDE) 103.85007
LOCATION (POSTAL CODE) N/A
SSL SERIAL 6.397926099704398e+47
SSL EXPIRED N/A
SSL FINGERPRINT (SHA1) a220500c5942af26c5dff4757644ae30b5b8ade7
SSL ISSUED 20220324063700Z
SSL EXPIRES 20370320063700Z
SSL CYPHER ECDHE-RSA-AES256-GCM-SHA384
SSL VERSION TLSv1/SSLv3
SSL TRUST (REVOKED) N/A
TAGS cloud
Cobalt Strike Beacon Information
Beacon Type N/A
http-get.client
http-post.client
DNS Beacon MaxDNS N/A
DNS Beacon Idle N/A
Beacon Jitter N/A
dns-beacon.strategy_fail_seconds N/A
dns-beacon.strategy_rotate_seconds N/A
dns-beacon.strategy_fail_x N/A
HTTP GET URI
HTTP POST URI N/A
Max GET Size N/A
Port N/A
post-ex.spawnto_x64
post-ex.spawnto_x86
process-inject.startrwx N/A
process-inject.userwx N/A
process-inject.allocator N/A
proxy.behavior N/A
sleeptime N/A
useragent_header N/A
uses_cookies N/A
process-inject.execute
Watermark N/A
Beacon Stage Cleanup N/A