Known malicious kitcriticalphishing

Navipay: fake payment-settlement portal that opens a WebDAV share in File Explorer and delivers a shortcut installing the "Fleet Agent" backdoor

family: navipay-settlement-searchms-lnk-2026-10

Fake "Navipay" back-office settlement portal, relabelled for each target company, showing a monthly statement chart and a PDF preview. Clicking any month sends the browser to a Windows search-ms: link that asks to open File Explorer on the operator's WebDAV share (\\cloud.navipay[.]cfd@80\cloud), filtered so that only a shortcut named Settlement_<Month>.lnk is shown. The shortcut runs an obfuscated cmd.exe command that downloads msct.ocx into C:\ProgramData and registers it with regsvr32. The chain ends in a backdoor that installs itself as the "Fleet Agent" (FleetSvc) Windows service and keeps a WebSocket connection to its server. The page also records every visit, click and right-click together with a browser fingerprint. Copies have run on navipay[.]cfd and on throwaway domains such as sunstonehub-joojebiabokhoreshbaba[.]lat and fastbirdline-elephgoup[.]top. A match means a page carrying the kit or its tracker script, or a scan of one of its known hosts.

Anchors

YARA ruleNavipay_Settlement_SearchMS_Kit
SMQL queryrun
contacted_host:navipay.cfd OR contacted_host:www.navipay.cfd OR contacted_host:cloud.navipay.cfd OR contacted_host:skyriverlab-joojebiabokhoreshbaba.lat OR contacted_host:sunstonehub-joojebiabokhoreshbaba.lat OR contacted_host:lightcloudnet-joojebiabokhoreshbaba.lat OR contacted_host:fastbirdline-elephgoup.top OR contacted_host:redrocketbox-elephgoup.top OR ip:65.20.107.61 OR ip:217.69.11.65 OR title:"Settlement · Navipay"

Provenance

Added: 2026-10-20 15:36
One hunt for the kit. Rule anchor: the kit's own structure (the search-ms hand-off to a remote share with its file filter, the per-target relabelling, and the tracker's event and fingerprint fields), not the Navipay name, so a copy under another name still matches. Search anchor: the hosts and addresses the kit has used and its page title. The lure domains share one rotating set of addresses, so a domain taken down can leave the others serving the same page.

Sightings (20)Atom feed

HostScanScriptMatchScanned
217.69.11.65d9dd1cb2…—query2026-10-20 17:33
fastbirdline-elephgoup.top2fac8ab8…—query2026-10-20 15:47
217.69.11.653b7585b0…—query2026-10-20 15:47
redrocketbox-elephgoup.topc53113aa…http://redrocketbox-elephgoup.top/#htmlyara2026-10-20 13:27
redrocketbox-elephgoup.topc53113aa…—query2026-10-20 13:27
sunstonehub-joojebiabokhoreshbaba.latc2fd981c…http://sunstonehub-joojebiabokhoreshbaba.lat/#htmlyara2026-10-20 13:27
sunstonehub-joojebiabokhoreshbaba.latc2fd981c…—query2026-10-20 13:27
skyriverlab-joojebiabokhoreshbaba.latedff706d…—query2026-10-20 13:27
217.69.11.6597ccbdce…—query2026-10-20 12:44
217.69.11.65bb8b7b3f…—query2026-10-20 12:44
217.69.11.6505d52168…—query2026-10-20 12:44
65.20.107.61506c77b7…—query2026-10-20 12:44
217.69.11.65dac00fb4…—query2026-10-20 12:43
fastbirdline-elephgoup.top0453cbe0…—query2026-10-20 12:43
65.20.107.610a51db84…http://65.20.107.61/track.jsyara2026-10-20 12:43
65.20.107.610a51db84…http://65.20.107.61/#htmlyara2026-10-20 12:43
65.20.107.610a51db84…—query2026-10-20 12:43
navipay.cfd2226c69b…http://navipay.cfd/track.jsyara2026-10-20 12:43
navipay.cfd2226c69b…http://navipay.cfd/#htmlyara2026-10-20 12:43
navipay.cfd2226c69b…—query2026-10-20 12:43