Threat Actor

Leviathan

Also known as: Leviathan, MUDCARP, Kryptonite Panda, Gadolinium, BRONZE MOHAWK, TEMP.Jumper, APT40, TEMP.Periscope, Gingham Typhoon

[Leviathan](https://attack.mitre.org/groups/G0065) is a Chinese state-sponsored cyber espionage group that has been attributed to the Ministry of State Security's (MSS) Hainan State Security Department and an affiliated front company.(Citation: CISA AA21-200A APT40 July 2021) Active since at least 2009, [Leviathan](https://attack.mitre.org/groups/G0065) has targeted the following sectors: academia, aerospace/aviation, biomedical, defense industrial base, government, healthcare, manufacturing, maritime, and transportation across the US, Canada, Australia, Europe, the Middle East, and Southeast Asia.(Citation: CISA AA21-200A APT40 July 2021)(Citation: Proofpoint Leviathan Oct 2017)(Citation: FireEye Periscope March 2018)(Citation: CISA Leviathan 2024)

50
Techniques
17
Software
1
Campaigns

Properties

stix_id
intrusion-set--7113eaa5-ba79-4fb3-b68a-398ee9cd698e
signal_observed_at
2026-09-11T17:55:00+00:00
type
intrusion-set

MITRE ATT&CK Techniques (50)

Archive Collected Data

An adversary may compress and/or encrypt data that is collected prior to exfiltration. Compressing the data can help to obfuscate the collected data a

BITS Jobs

Adversaries may abuse BITS jobs to persistently execute code and perform various background tasks. Windows Background Intelligent Transfer Service (BI

Binary Padding

Adversaries may use binary padding to add junk data and change the on-disk representation of malware. This can be done without affecting the functiona

Code Signing

Adversaries may create, acquire, or steal code signing materials to sign their malware or tools. Code signing provides a level of authenticity on a bi

Compression

Adversaries may use compression to obfuscate their payloads or files. Compressed file formats such as ZIP, gzip, 7z, and RAR can compress and archive

Credentials

Adversaries may gather credentials that can be used during targeting. Account credentials gathered by adversaries may be those directly associated wit

Deobfuscate/Decode Files or Information

Adversaries may use [Obfuscated Files or Information](https://attack.mitre.org/techniques/T1027) to hide artifacts of an intrusion from analysis. They

Domains

Adversaries may acquire domains that can be used during targeting. Domain names are the human readable names used to represent one or more IP addresse

Drive-by Compromise

Adversaries may gain access to a system through a user visiting a website over the normal course of browsing. Multiple ways of delivering exploit code

Dynamic Data Exchange

Adversaries may use Windows Dynamic Data Exchange (DDE) to execute arbitrary commands. DDE is a client-server protocol for one-time and/or continuous

Dynamic-link Library Injection

Adversaries may inject dynamic-link libraries (DLLs) into processes in order to evade process-based defenses as well as possibly elevate privileges. D

Email Accounts

Adversaries may compromise email accounts that can be used during targeting. Adversaries can use compromised email accounts to further their operation

Email Accounts

Adversaries may create email accounts that can be used during targeting. Adversaries can use accounts created with email providers to further their op

Encrypted/Encoded File

Adversaries may encrypt or encode files to obfuscate strings, bytes, and other specific patterns to impede detection. Encrypting and/or encoding file

Exfiltration Over C2 Channel

Adversaries may steal data by exfiltrating it over an existing command and control channel. Stolen data is encoded into the normal communications chan

Exfiltration to Cloud Storage

Adversaries may exfiltrate data to a cloud storage service rather than over their primary command and control channel. Cloud storage services allow fo

Exploit Public-Facing Application

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network. The weakness in the system can be a

Exploitation for Client Execution

Adversaries may exploit software vulnerabilities in client applications to execute code. Vulnerabilities can exist in software due to unsecure coding

Exploits

Adversaries may develop exploits that can be used during targeting. An exploit takes advantage of a bug or vulnerability in order to cause unintended

External Remote Services

Adversaries may leverage external-facing remote services to initially access and/or persist within a network. Remote services such as VPNs, Citrix, an

Ingress Tool Transfer

Adversaries may transfer tools or other files from an external system into a compromised environment. Tools or files may be copied from an external ad

Internal Spearphishing

After they already have access to accounts or systems within the environment, adversaries may use internal spearphishing to gain access to additional

LSASS Memory

Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS). After a

Local Data Staging

Adversaries may stage collected data in a central location or directory on the local system prior to Exfiltration. Data may be kept in separate files

Malicious File

An adversary may rely upon a user opening a malicious file in order to gain execution. Users may be subjected to social engineering to get them to ope

Malicious Link

An adversary may rely upon a user clicking a malicious link in order to gain execution. Users may be subjected to social engineering to get them to cl

Multi-hop Proxy

Adversaries may chain together multiple proxies to disguise the source of malicious traffic. Typically, a defender will be able to identify the last p

Network Devices

Adversaries may compromise third-party network devices that can be used during targeting. Network devices, such as small office/home office (SOHO) rou

OS Credential Dumping

Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.

One-Way Communication

Adversaries may use an existing, legitimate external Web service as a means for sending commands to a compromised system without receiving return outp

Software & Tools (17)

BADFLICK [malware]

[BADFLICK](https://attack.mitre.org/software/S0642) is a backdoor used by [Leviathan](https://attack.mitre.org/groups/G0065) in spearphishing campaign

BITSAdmin [tool]

[BITSAdmin](https://attack.mitre.org/software/S0190) is a command line tool used to create and manage [BITS Jobs](https://attack.mitre.org/techniques/

BLACKCOFFEE [malware]

[BLACKCOFFEE](https://attack.mitre.org/software/S0069) is malware that has been used by several Chinese groups since at least 2013. (Citation: FireEye

China Chopper [malware]

[China Chopper](https://attack.mitre.org/software/S0020) is a [Web Shell](https://attack.mitre.org/techniques/T1505/003) hosted on Web servers to prov

Cobalt Strike [tool]

[Cobalt Strike](https://attack.mitre.org/software/S0154) is a commercial, full-featured, remote access tool that bills itself as “adversary simulation

Derusbi [malware]

[Derusbi](https://attack.mitre.org/software/S0021) is malware used by multiple Chinese APT groups.(Citation: Novetta-Axiom)(Citation: ThreatConnect An

Empire [tool]

[Empire](https://attack.mitre.org/software/S0363) is an open-source, cross-platform remote administration and post-exploitation framework that is publ

HOMEFRY [malware]

[HOMEFRY](https://attack.mitre.org/software/S0232) is a 64-bit Windows password dumper/cracker that has previously been used in conjunction with other

MURKYTOP [malware]

[MURKYTOP](https://attack.mitre.org/software/S0233) is a reconnaissance tool used by [Leviathan](https://attack.mitre.org/groups/G0065). (Citation: Fi

NanHaiShu [malware]

[NanHaiShu](https://attack.mitre.org/software/S0228) is a remote access tool and JScript backdoor used by [Leviathan](https://attack.mitre.org/groups/

Net [tool]

The [Net](https://attack.mitre.org/software/S0039) utility is a component of the Windows operating system. It is used in command-line operations for c

Orz [malware]

[Orz](https://attack.mitre.org/software/S0229) is a custom JavaScript backdoor used by [Leviathan](https://attack.mitre.org/groups/G0065). It was obse

PowerSploit [tool]

[PowerSploit](https://attack.mitre.org/software/S0194) is an open source, offensive security framework comprised of [PowerShell](https://attack.mitre.

Tor [tool]

[Tor](https://attack.mitre.org/software/S0183) is a software suite and network that provides increased anonymity on the Internet. It creates a multi-h

Windows Credential Editor [tool]

[Windows Credential Editor](https://attack.mitre.org/software/S0005) is a password dumping tool. (Citation: Amplia WCE)

at [tool]

[at](https://attack.mitre.org/software/S0110) is used to schedule tasks on a system to run at a specified date or time.(Citation: TechNet At)(Citation

gh0st RAT [malware]

[gh0st RAT](https://attack.mitre.org/software/S0032) is a remote access tool (RAT). The source code is public and it has been used by multiple groups.

Campaigns (1)

Leviathan Australian Intrusions

[Leviathan Australian Intrusions](https://attack.mitre.org/campaigns/C0049) consisted of at least two long-term intrusions against victims in Australi

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