public mosaic llc support@publicmosaic.com
confirmed host

IP address 47.105.36.109

Cobalt Strikecommand-and-control server · :443

Last confirmed 2026-09-15, first seen 2026-08-24. On AS37963. Its certificate is shared with 99 other confirmed hosts.

listed last confirmed feed checked TLP:CLEAR SURICATA .RULES SEE THE LIVE FEED →

47.105.36.109:443 · Cobalt Strike

Last confirmed (today)

first seen2026-08-24 06:39 UTC
serviceip-port · tcp · HTTPS blend-in
networkAS37963 · Hangzhou Alibaba Advertising
confidence100 / 100
tls certificate87f2085c32b6a2cc709b365f55873e207a9caa10bffecf2fd16d3cf9d94d390c
cert validity2015-05-20 → 2025-05-17
cert typeself-signed
cert key2048-bit
cert serial (decimal)146473198

The certificate names above are what the certificate ASSERTS, not proof this host owns them — a self-signed certificate can claim any subject, so treat a familiar name here as an impersonation attempt rather than an identity.

ja4x2166164053c1_2166164053c1_30d204a01551
cs watermark391144938

Beacon configuration

callback47.105.36.109 · same as this host
beacon typeHTTPS
cs versionCobalt Strike 4.7 (Aug 17, 2022)
getPOST /siie=utf-8&f=8&rsv_bp=1&rsv_idx=1&ch=&tn=baidu&bar=&wd=
postPOST /r/www/static/assets/mirror-san/app/miaodong-logo_d5aa8ae.png
user-agentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36 Edg/80.0.361.66
sleep8s ±24%
watermark391144938
server key md5a4d36ca977f23ac124215379f87c405d
inject stubb50b86d735412685eb6044ad8d01781c
spawn to x86%windir%\syswow64\WerFault.exe
spawn to x64%windir%\system32\gpupdate.exe

Observation history

18d agotoday

Observed on 18 of the 18 days since this archive began recording, 2026-08-29 UTC. Presence is per UTC day: a day is marked when the scanner confirmed this address at least once, not once per scan.

Shared TLS certificate · 99 hosts

These hosts served the same certificate. That is the strongest link this corpus can draw between two addresses, though it evidences a shared BUILD rather than a shared operator: a leaked or resold profile puts the same certificate in different hands. Full cohort →

Showing 24 of 99. Full cohort →

Shared JA4X issuance template · 270 hosts

These hosts issued certificates from the same template — the same distinguished-name fields hashed in the same order. It links tooling, not necessarily an operator. Full cohort →

Showing 24 of 270. Full cohort →

Shared Cobalt Strike watermark · 28 hosts

A watermark identifies the Cobalt Strike licence a beacon was generated from. Hosts sharing one were built from the same copy of the software — which is not the same as one operator, since cracked and leaked builds circulate widely and share a watermark by definition.

Showing 24 of 28. The rest are reachable from any of them.

Pivots & lookups