PULSE NAME
Extortion in the Enterprise: Defending Against BlackFile Attacks
WHITE CL-CRI-1116 AlienVault 2026-04-27 Modified: 2026-04-27
16
IOCs
MEDIUM VOLUME
Since February 2026, multiple incidents involving data theft and extortion have been attributed to activity cluster CL-CRI-1116, also known as BlackFile, UNC6671, and Cordial Spider. These financially-motivated attackers, likely associated with "The Com" collective, employ voice-based phishing combined with credential harvesting through fraudulent login pages. They impersonate IT support staff to steal credentials and bypass multi-factor authentication. The attackers focus on Living Off the Land techniques, abusing legitimate APIs like Microsoft Graph to access SharePoint sites and Salesforce data. They search for confidential information and employee data within SaaS environments, then exfiltrate it through browser downloads or API exports. To pressure victims into paying seven-figure ransoms, attackers send demands via Gmail and compromised email accounts, sometimes employing SWATting tactics against executives.
Indicators of Compromise (16 / 16 total)
All IPv4
TYPEINDICATORDESCRIPTIONCREATED
IPv4 112.209.151.78 2026-04-27
IPv4 111.235.93.125 2026-04-27
IPv4 112.207.101.227 2026-04-27
IPv4 112.207.108.30 2026-04-27
IPv4 119.111.248.227 2026-04-27
IPv4 136.158.24.160 2026-04-27
IPv4 136.158.27.101 2026-04-27
IPv4 136.158.27.72 2026-04-27
IPv4 136.32.210.197 2026-04-27
IPv4 136.35.103.90 2026-04-27
IPv4 184.93.0.17 2026-04-27
IPv4 185.193.127.130 2026-04-27
IPv4 185.231.33.62 2026-04-27
IPv4 24.177.37.97 2026-04-27
IPv4 35.139.72.161 2026-04-27
IPv4 72.180.124.192 2026-04-27