Scattered Spider
Scattered Spider is a financially motivated cybercriminal threat actor active since at least May 2022. It is also tracked as UNC3944, Octo Tempest, Muddled Libra, Scatter Swine, 0ktapus/Oktapus, Storm-0875, Roasted 0ktapus, DEV-0971, LUCR-3, Star Fraud, and related variants. Multiple sources describe it as an English-speaking collective, with members primarily based in the United States, the United Kingdom, and Canada. The group initially targeted telecommunications and business process outsourcing organizations, including activity aimed at gaining access to mobile carrier environments to support SIM swapping and phone-number porting. It later expanded to large enterprises across sectors including technology, retail, hospitality, gaming, financial services, manufacturing, law, natural resources, managed service providers, and critical infrastructure. Reported victims and linked campaigns include Twilio-related intrusions, Caesars Entertainment, MGM Resorts, Transport for London, and UK retail targets such as Marks & Spencer, Harrods, and Co-op Group. Scattered Spider is characterized by aggressive social engineering and identity-focused intrusion tradecraft. Reported techniques include vishing, smishing, phishing, adversary-in-the-middle credential theft, MFA fatigue, SIM swapping, impersonation of employees and IT/help desk staff, and abuse of self-service password reset and help-desk-driven MFA reset workflows. The group has used phone calls, SMS, and Microsoft Teams to pose as internal support personnel, direct victims to credential-harvesting pages, or convince them to install commercial remote monitoring and management tools. Sources also describe the group gathering personal and role information from open sources and leaks to support impersonation. After initial access, Scattered Spider has used valid accounts and legitimate tools to persist, move laterally, and evade detection. Reported tooling and methods include AnyDesk, ScreenConnect/ConnectWise Control, TeamViewer, Splashtop, Pulseway, Tactical RMM, Fleetdeck.io, Level.io, Tailscale, Teleport.sh, Ngrok, and other remote access or tunneling tools. The group has conducted reconnaissance across Windows, Linux, Active Directory, VMware vSphere/ESXi, Azure AD/Microsoft 365, Google Workspace, AWS, SharePoint, Slack, Teams, Exchange Online, code repositories, backups, and Snowflake environments. It has searched for credential documentation, VPN instructions, network diagrams, user provisioning and MFA registration procedures, and other material useful for escalation and extortion. Several sources link Scattered Spider to credential theft, cloud and identity abuse, and hypervisor-focused operations. Reported behaviors include registering attacker-controlled MFA devices, adding federated identity providers to SSO tenants, abusing Okta Org2Org, using Golden SAML-related techniques, exporting users and groups, extracting VPN and MFA enrollment data, and targeting VMware ESXi infrastructure. The group has been observed enabling SSH, altering firewall rules, disabling security controls, manipulating virtual disks offline, and deploying ransomware against ESXi environments. Scattered Spider has also been linked to malware and driver-based defense evasion. Reported tooling includes POORTRY and STONESTOP to terminate security software, use of signed vulnerable or malicious drivers, exploitation of CVE-2015-2291 in the Intel Ethernet diagnostics driver iqvw64.sys, and exploitation of CVE-2021-35464 in ForgeRock AM. Associated malware named in the content includes AveMaria/WarZone, Raccoon Stealer, VIDAR Stealer, RattyRAT, and DragonForce ransomware. The group monetizes access through data theft, extortion, and ransomware. Multiple sources state that Scattered Spider became an affiliate of ALPHV/BlackCat in mid-2023 and initially used stolen-data extortion before deploying ALPHV/BlackCat ransomware on Windows and Linux, with later focus on VMware ESXi. Other reporting identifies Scattered Spider as a notable ransomware affiliate and states that trusted third parties observed deployment of DragonForce ransomware in more recent incidents. The content also notes associations or overlap with broader cybercrime ecosystems including The Com and mentions links or associations in reporting involving RansomHub, DragonForce, and remnants of Lapsus$. Law-enforcement reporting in the content identifies Scattered Spider as a prolific cybercrime group whose members have been arrested and prosecuted. The material specifically names Owen Flowers and Thalha Jubair as key members who pleaded guilty in the United Kingdom over the Transport for London attack, and notes additional U.S. cases involving alleged Scattered Spider members. The content also repeatedly notes the group's reputation for recruiting teenagers.
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Targeting
Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Who they target
Sectors the actor has been observed targeting.
- Commercial & Professional Services
Where they target
Geographies tied to known operations.
- 🇬🇧 United Kingdom
Tradecraft
66 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
Associated malware families
29 malware families attributed to this actor across reporting.
24 additional families tracked in Mallory.
Associated vulnerabilities
20 CVEs this actor has used in observed campaigns. 20 of them exploited in the wild.
Scattered Spider is known to exploit CVE-2015-2291 which is a vulnerability in the Intel Ethernet diagnostics driver for Windows (iqvw64.sys) that allows local users to cause a denial of service or possibly execute arbitrary code with kernel privileges... Scattered Spider exploited CVE-2015-2291 to deploy a malicious kernel driver in the Intel Ethernet diagnostics driver for Windows (iqvw64.sys).
Additionally, Scattered Spider has exploited CVE-2021-35464 which is a flaw in the ForgeRock AM server. ForgeRock AM server versions before 7.0 have a Java deserialization vulnerability in the jato.pageSession parameter on multiple pages... remote code execution can be triggered by sending a single crafted /ccversion/* request to the server.
It has since been determined that hackers likely exploited known EBS vulnerabilities patched in July, likely along with a zero-day flaw tracked as CVE-2025-61882. The hacker groups ShinyHunters and Scattered Spider ... have published a proof-of-concept (PoC) exploit that appears to target CVE-2025-61882 ... according to Oracle, CVE-2025-61882 allows unauthenticated remote code execution. CrowdStrike has found evidence that exploitation of CVE-2025-61882 started on August 9.
This detection identifies instances where Windows Explorer.exe spawns PowerShell or cmd.exe processes, particularly focusing on executions initiated by LNK files. This behavior is associated with the ZDI-CAN-25373 Windows shortcut zero-day vulnerability, where specially crafted LNK files are used to trigger malicious code execution through cmd.exe or powershell.exe. This technique has been actively exploited by multiple APT groups in targeted attacks through both HTTP and SMB delivery methods.
This analytic identifies potential exploitation attempts of ProxyShell (CVE-2021-34473, CVE-2021-34523, CVE-2021-31207) and ProxyNotShell (CVE-2022-41040, CVE-2022-41082) vulnerabilities in Microsoft Exchange Server.
15 more CVEs tied to this actor tracked in Mallory.
Observables
229 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
Recent activity
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Referenced as part of The Com cybercrime network linked by Mandiant to ShinyHunters.
Name used in connection with the cyber attack against Transport for London that disrupted services and led to major financial losses.
An English-speaking cybercriminal collective linked to attacks on more than 120 companies, including ransomware attacks on Caesars Entertainment and MGM Resorts, the Transport for London attack, attacks on UK retailers, and intrusions affecting U.S. healthcare organizations.
Cybercrime group tied to the disruptive attack on Transport for London, intrusions into U.S. healthcare providers, and broader financially motivated network intrusions involving ransom payments, credential theft, and cryptocurrency theft.
The version that knows your environment.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.