Skip to main content
Meet us at Black Hat USA 2026— Las Vegas, August 1–6Book a Meeting
Mallory
Financially Motivated29 malware familiesExploits CVEs in the wild

Scattered Spider

Also known as0ktapusDEV-0971LUCR-3Muddled LibraOcto TempestoktapusRoasted 0ktapusScatter Swinescattered_spiderscattered_swinescatteredspiderstar_fraudStarfraudStorm-0875UNC3944

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.

Share:
Are they targeting you?

Know when an actor pivots toward your sector

Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.

OPERATIONAL PROFILE

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
MITRE ATT&CK

Tradecraft

66 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.

15 of 15 tactics83 techniques×N= number of intelligence reports citing this technique
MITRE ATT&CK
TA0043
Reconnaissance
2 techniques
T1589
Gather Victim Identity Information
T1598×2
Phishing for Information
T1598.004×3
Spearphishing Voice
TA0042
Resource Development
3 techniques
T1583
Acquire Infrastructure
T1583.001
Domains
T1585
Establish Accounts
T1588
Obtain Capabilities
TA0001
Initial Access
6 techniques
T1078×6
Valid Accounts
T1133×2
External Remote Services
T1190
Exploit Public-Facing Application
T1195
Supply Chain Compromise
T1195.002
Compromise Software Supply Chain
T1199
Trusted Relationship
T1566×4
Phishing
T1566.002
Spearphishing Link
T1566.003×2
Spearphishing via Service
TA0002
Execution
5 techniques
T1053
Scheduled Task/Job
T1059×2
Command and Scripting Interpreter
T1106
Native API
T1610
Deploy Container
T1648
Serverless Execution
TA0003
Persistence
6 techniques
T1053
Scheduled Task/Job
T1078×6
Valid Accounts
T1098×3
Account Manipulation
T1133×2
External Remote Services
T1176
Software Extensions
T1556×2
Modify Authentication Process
TA0004
Privilege Escalation
5 techniques
T1053
Scheduled Task/Job
T1068×2
Exploitation for Privilege Escalation
T1078×6
Valid Accounts
T1098×3
Account Manipulation
T1134
Access Token Manipulation
T1134.001
Token Impersonation/Theft
TA0005
Stealth
7 techniques
T1036×2
Masquerading
T1078×6
Valid Accounts
T1134
Access Token Manipulation
T1134.001
Token Impersonation/Theft
T1140
Deobfuscate/Decode Files or Information
T1218×2
System Binary Proxy Execution
T1497
Virtualization/Sandbox Evasion
T1564
Hide Artifacts
TA0112
Defense Impairment
2 techniques
T1553
Subvert Trust Controls
T1553.002
Code Signing
T1556×2
Modify Authentication Process
TA0006
Credential Access
10 techniques
T1003
OS Credential Dumping
T1056
Input Capture
T1528
Steal Application Access Token
T1552
Unsecured Credentials
T1552.001
Credentials In Files
T1552.004
Private Keys
T1555
Credentials from Password Stores
T1556×2
Modify Authentication Process
T1557
Adversary-in-the-Middle
T1606
Forge Web Credentials
T1621×2
Multi-Factor Authentication Request Generation
T1649×2
Steal or Forge Authentication Certificates
TA0007
Discovery
8 techniques
T1016
System Network Configuration Discovery
T1018×2
Remote System Discovery
T1033
System Owner/User Discovery
T1046
Network Service Discovery
T1083
File and Directory Discovery
T1482
Domain Trust Discovery
T1497
Virtualization/Sandbox Evasion
T1526
Cloud Service Discovery
TA0008
Lateral Movement
3 techniques
T1021
Remote Services
T1021.001
Remote Desktop Protocol
T1021.004
SSH
T1210
Exploitation of Remote Services
T1534
Internal Spearphishing
TA0009
Collection
5 techniques
T1056
Input Capture
T1114
Email Collection
T1114.003
Email Forwarding Rule
T1115
Clipboard Data
T1213×3
Data from Information Repositories
T1557
Adversary-in-the-Middle
TA0011
Command and Control
2 techniques
T1090
Proxy
T1219×3
Remote Access Tools
TA0010
Exfiltration
3 techniques
T1041
Exfiltration Over C2 Channel
T1048
Exfiltration Over Alternative Protocol
T1567
Exfiltration Over Web Service
T1567.002
Exfiltration to Cloud Storage
TA0040
Impact
2 techniques
T1486×4
Data Encrypted for Impact
T1496
Resource Hijacking
WEAPONIZED

Associated vulnerabilities

20 CVEs this actor has used in observed campaigns. 20 of them exploited in the wild.

CVE-2015-2291Kernel Privilege Escalation in Intel Ethernet Diagnostics Driver (IQVW32.sys/IQVW64.sys)In the wildEvidence5

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).

CVE-2021-35464Unauthenticated RCE in ForgeRock AM via JATO Java DeserializationIn the wildEvidence3

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.

CVE-2025-61882Unauthenticated RCE in Oracle E-Business Suite Concurrent Processing BI Publisher IntegrationIn the wildEvidence3

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.

CVE-2025-9491Microsoft Windows LNK File UI Misrepresentation Remote Code Execution VulnerabilityIn the wildEvidence2

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.

CVE-2021-31207Post-auth Arbitrary File Write in Microsoft Exchange Server (ProxyShell)In the wildEvidence1

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.

IOCS

Observables

229 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.

IOC values are gated. View more in Mallory for domains, IPs, hashes, and other artifacts, or pipe them straight into your SIEM.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: sector and geo overlap with your footprint, the IOCs they’re burning right now, detection coverage, and what to do next.
Target overlap

Match sector + geo + tech-stack targeting against your real footprint.

Tradecraft mapping66

Every observed MITRE ATT&CK technique, grouped by tactic.

Malware arsenal29

Families this actor is known to deploy, with IOCs and behavior.

Exploited CVEs20

CVEs this actor has used in known campaigns.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Observables229

Domains, IPs, and hashes tied to this actor, refreshed continuously.