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MITRE ATT&CK® Malware

S1212: RansomHub

RansomHub is a ransomware-as-a-service (RaaS) offering with Windows, ESXi, Linux, and FreeBSD versions that has been in use since at least 2024 to target organizations in multiple sectors globally. RansomHub operators may have purchased and rebranded resources from Knight (formerly Cyclops) Ransomware which shares infrastructure, feature, and code overlaps with RansomHub.[1][2]

EnterpriseS1212MalwareObject v1.0Modified
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Glexia's Take · Automated analysis

Security context for executives and security teams

Automation confidenceMedium

S1212: RansomHub describes [RansomHub](https://attack.mitre.org/software/S1212) is a ransomware-as-a-service (RaaS) offering with Windows, ESXi, Linux, and FreeBSD versions that has been in use since at least 2024 to target organizations in multiple sectors globally. [RansomHub](https://attack.mitre.org/software/S1212) operators may have purchased and rebranded resources from Knight (formerly Cyclops) Ransomware which shares infrastructure, feature, and code overlaps with [RansomHub](https://attack.mitre.org/software/S1212).(Citation: CISA R...

Executive priority

S1212: RansomHub is an official MITRE ATT&CK software. Glexia treats it as defensive behavior context for prioritizing monitoring, control validation, and response planning without using the object by itself as an attribution claim.

Technical view

Security teams should validate S1212: RansomHub by reviewing the official ATT&CK relationships, mapped tactics (the mapped ATT&CK tactic context), supported platforms (Linux, Windows), and available local telemetry before making detection or mitigation decisions.

Likely telemetry

  • Official ATT&CK relationships and object metadata
  • Network, endpoint, and security-tool telemetry

Detection direction

  • Validate whether S1212: RansomHub appears in your detection coverage and tabletop scenarios.
  • Use the object to align executive risk language with SOC, incident response, and detection engineering work.
  • Do not treat ATT&CK relationship context as attribution without corroborating evidence.

Mitigation priorities

  • Map the object to existing controls and identify missing telemetry or response ownership.
  • Prioritize mitigations that reduce exposure on the listed platforms and tactics.
  • Review adjacent ATT&CK relationships before changing policy, detections, or reporting language.
Additional notes and limits

Baseline Glexia take generated from the official MITRE ATT&CK STIX object, source hash, tactics, platforms, and detection fields. It is safe to replace with a richer model-generated take for the same source hash later.

This baseline take is source-grounded and schema-validated, but it does not include environment-specific telemetry, incident evidence, or threat-intelligence corroboration.

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Official MITRE ATT&CK definition

RansomHub

RansomHub is a ransomware-as-a-service (RaaS) offering with Windows, ESXi, Linux, and FreeBSD versions that has been in use since at least 2024 to target organizations in multiple sectors globally. RansomHub operators may have purchased and rebranded resources from Knight (formerly Cyclops) Ransomware which shares infrastructure, feature, and code overlaps with RansomHub.[1][2]

View the same entry on attack.mitre.org (MITRE-hosted reference; in-page links above use the Glexia ATT&CK library.)

Glexia analysis

How security teams should use this page

Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.

ATT&CK relationship table

Techniques used

This mirrors the MITRE pattern of making group, software, campaign, and technique relationships scannable. Relationship notes come from mirrored ATT&CK relationship text when available.

21 rows
DomainIDNameRelationship / procedure
EnterpriseT1059.001PowerShellSub-technique

RansomHub can use PowerShell to delete volume shadow copies.[2]

EnterpriseT1070.004File DeletionSub-technique

RansomHub has the ability to self-delete.[2]

EnterpriseT1090Proxy

RansomHub can use a proxy to connect to remote SFTP servers.[2]

EnterpriseT1480Execution Guardrails

RansomHub will terminate without proceeding to encryption if the infected machine is on a list of allowlisted machines specified in its configuration.[2]

EnterpriseT1027.013Encrypted/Encoded FileSub-technique

RansomHub has an encrypted configuration file.[2]

EnterpriseT1547.001Registry Run Keys / Startup FolderSub-technique

RansomHub has created an autorun Registry key through the `-safeboot-instance -pass` command line argument.[2]

EnterpriseT1059.003Windows Command ShellSub-technique

RansomHub can use `cmd.exe` to execute multiple commands on infected hosts.[2]

EnterpriseT1140Deobfuscate/Decode Files or Information

RansomHub can use a provided passphrase to decrypt its configuration file.[2]

EnterpriseT1018Remote System Discovery

RansomHub can enumerate all accessible machines from the infected system.[2]

EnterpriseT1021.002SMB/Windows Admin SharesSub-technique

RansomHub can use credentials provided in its configuration to move laterally from the infected machine over SMBv2.[2]

EnterpriseT1497.003Time Based ChecksSub-technique

RansomHub can sleep for a set number of minutes before beginning execution.[2]

EnterpriseT1685.005Clear Windows Event LogsSub-technique

RansomHub can delete events from the Security, System, and Application logs.[2]

EnterpriseT1490Inhibit System Recovery

RansomHub has used `vssadmin.exe` to delete volume shadow copies.[1][2]

EnterpriseT1083File and Directory Discovery

RansomHub has the ability to only encrypt specific files.[2]

EnterpriseT1486Data Encrypted for Impact

RansomHub can use Elliptic Curve Encryption to encrypt files on targeted systems.[1] RansomHub can also skip content at regular intervals (ex. encrypt 1 MB, skip 3 MB) to optomize performance and enable faster encryption for large files.[2]

EnterpriseT1057Process Discovery

RansomHub can stop processes associated with files currently in use to maximize the impact of encryption.[1]

EnterpriseT1491.001Internal DefacementSub-technique

RansomHub has placed a ransom note on comrpomised systems to warn victims and provide directions for how to retrieve data.[1]

EnterpriseT1135Network Share Discovery

RansomHub has the ability to target specific network shares for encryption.[2]

EnterpriseT1688Safe Mode Boot

RansomHub can reboot targeted systems into Safe Mode prior to encryption.[2]

EnterpriseT1489Service Stop

RansomHub has the ability to terminate specified services.[2]

EnterpriseT1082System Information Discovery

RansomHub can retrieve information about virtual machines.[2]

Relationship explorer

All related ATT&CK context

uses · TechniqueT1059.001: PowerShellEnterpriseuses · TechniqueT1070.004: File DeletionEnterpriseuses · TechniqueT1090: ProxyEnterpriseuses · TechniqueT1480: Execution GuardrailsEnterpriseuses · TechniqueT1027.013: Encrypted/Encoded FileEnterpriseuses · TechniqueT1547.001: Registry Run Keys / Startup FolderEnterpriseuses · TechniqueT1059.003: Windows Command ShellEnterpriseuses · TechniqueT1140: Deobfuscate/Decode Files or InformationEnterpriseuses · TechniqueT1018: Remote System DiscoveryEnterpriseuses · TechniqueT1021.002: SMB/Windows Admin SharesEnterpriseuses · TechniqueT1497.003: Time Based ChecksEnterpriseuses · TechniqueT1685.005: Clear Windows Event LogsEnterpriseuses · TechniqueT1490: Inhibit System RecoveryEnterpriseuses · TechniqueT1083: File and Directory DiscoveryEnterpriseuses · TechniqueT1486: Data Encrypted for ImpactEnterpriseuses · TechniqueT1057: Process DiscoveryEnterpriseuses · TechniqueT1491.001: Internal DefacementEnterpriseuses · TechniqueT1135: Network Share DiscoveryEnterpriseuses · TechniqueT1688: Safe Mode BootEnterpriseuses · TechniqueT1489: Service StopEnterpriseuses · TechniqueT1082: System Information DiscoveryEnterprise
Change history

Object version and sync metadata

The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates.

ATT&CK release
19.2
Object version
1.0
Created
Modified
Raw hash
aae116d3e5925aea...
Imported snapshots across ATT&CK releases(2)
ReleaseBundle importedObject versionModifiedStatusRaw hash
19.21.0Current bundleaae116d3e592…
19.11.0Older bundleaae116d3e592…
Raw source

Mirrored ATT&CK source object

The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.

Open mirrored raw JSONOpen MITRE-hosted copy
Source references

External references and citations

MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.

  1. [1]
    CISA RansomHub AUG 2024

    CISA et al. (2024, August 29). #StopRansomware: RansomHub Ransomware. Retrieved March 17, 2025.

    Open source URL
  2. [2]
    Group-IB RansomHub FEB 2025

    Alfano, V. et al. (2025, February 12). RansomHub Never Sleeps Episode 1: The evolution of modern ransomware. Retrieved March 17, 2025.

    Open source URL
  3. [3]
    mitre-attackS1212
    Open source URL
Source and licensing

Source: MITRE ATT&CK®. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation. Glexia is not affiliated with or endorsed by MITRE.

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