ThreatNexus
Nation-state APT intelligence
Dossiers Open app
RussiaAttributedFSB Centre 18EspionageActive 2015 – 2026

COLDRIVER

Also known asStar Blizzard · SEABORGIUM · Callisto Group · TA446 · Callisto · Calisto · TAG-53 · BlueCharlie · Blue Callisto · UNC4057 · IRON FRONTIER · Grey Pro · Mythic Ursa · Gossamer Bear

Summary

FSB Centre 18 credential phishing against Western think tanks, academics, and politicians. Masquerades as journalists. US/UK disrupted operations and sanctioned operator Andrey Korinets (Dec 2023).

Attribution

AttributedGovernment attribution: FSB Centre 18

Named by a government: indictment, sanctions designation, joint advisory or official statement.

Sources
  • UK NCSC (Government, 2023-12-07)
    Star Blizzard is almost certainly subordinate to FSB Centre 18
  • MITRE ATT&CK (MITRE ATT&CK, 2026-10)
    Originates in Russia; campaigns align with Russian state interests

Campaigns 3

CampaignPeriodTargetsSectorsSource
RedFlick phishing waves delivering CosmicPulse2026-01 – ongoingUkraine, USA, UK, GlobalNGO, Think Tanks, Government, Financial Services, Diplomatic, Academia, MediaMicrosoft Threat Intelligence (2026-09-29)
COLDCOPY ClickFix → NOROBOT/MAYBEROBOT re-tooling2025-05 – 2025-09GlobalNGO, Think Tanks, Dissidents, GovernmentGoogle Threat Intelligence Group (2025-10-20)
WhatsApp group QR-code account hijacking2024-11GlobalGovernment, Diplomatic, Defense Policy, Ukraine AssistanceMicrosoft Threat Intelligence (2025-01-16)

Newest first. ASSESSED: tied to the actor with hedging or through an alias. CLAIMED: an allegation no independent source confirms.

MITRE ATT&CK techniques 6

Reconnaissance1T1598.003Spearphishing Link
Initial Access1T1566.002Spearphishing Link
Execution3T1059.001PowerShellT1204.004Malicious Copy and PasteT1053.005Scheduled Task
Stealth1T1218.011Rundll32

Malware and tools 5

NameDescriptionPlatform
SPICABackdoor (Rust)Windows
LOSTKEYSInfo StealerWindows
NOROBOT (BAITSWITCH)Downloader DLL / CPLWindows
CosmicPulse (YESROBOT)Python backdoorWindows
MAYBEROBOT (SIMPLEFIX)PowerShell backdoorWindows

Infrastructure patterns

  • Phishing sent from accounts on compromised cPanel and WordPress sites (Microsoft, 2026)
  • Random-word or lookalike domains host its phishing; redirects to Evilginx servers (CISA, 2023; MITRE ATT&CK, 2026)
  • Moves to new domains quickly once infrastructure is exposed (Microsoft, 2025; Google GTIG, 2025)
  • WhatsApp linked-devices feature ties accounts to its infrastructure for exfiltration (MITRE ATT&CK, 2026)

Reporting and advisories 5