Threat Actor

Higaisa

Also known as: Higaisa

[Higaisa](https://attack.mitre.org/groups/G0126) is a threat group suspected to have South Korean origins. [Higaisa](https://attack.mitre.org/groups/G0126) has targeted government, public, and trade organizations in North Korea; however, they have also carried out attacks in China, Japan, Russia, Poland, and other nations. [Higaisa](https://attack.mitre.org/groups/G0126) was first disclosed in early 2019 but is assessed to have operated as early as 2009.(Citation: Malwarebytes Higaisa 2020)(Citation: Zscaler Higaisa 2020)(Citation: PTSecurity Higaisa 2020)

28
Techniques
3
Software

Properties

stix_id
intrusion-set--54dfec3e-6464-4f74-9d69-b7c817b7e5a3
signal_observed_at
2026-09-11T17:54:59+00:00
type
intrusion-set

MITRE ATT&CK Techniques (28)

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

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

DLL

Adversaries may abuse dynamic-link library files (DLLs) in order to achieve persistence, escalate privileges, and evade defenses. DLLs are libraries t

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

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

Exploitation for Client Execution

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

Hidden Window

Adversaries may use hidden windows to conceal malicious activity from the plain sight of users. In some cases, windows that would typically be display

Internal Proxy

Adversaries may use an internal proxy to direct command and control traffic between two or more systems in a compromised environment. Many tools exist

JavaScript

Adversaries may abuse various implementations of JavaScript for execution. JavaScript (JS) is a platform-independent scripting language (compiled just

Local Storage Discovery

Adversaries may enumerate local drives, disks, and/or volumes and their attributes like total or free space and volume serial number. This can be done

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

Masquerade Task or Service

Adversaries may attempt to manipulate the name of a task or service to make it appear legitimate or benign. Tasks/services executed by the Task Schedu

Native API

Adversaries may interact with the native OS application programming interface (API) to execute behaviors. Native APIs provide a controlled means of ca

Process Discovery

Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common

Protocol or Service Impersonation

Adversaries may impersonate legitimate protocols or web service traffic to disguise command and control activity and thwart analysis efforts. By imper

Registry Run Keys / Startup Folder

Adversaries may achieve persistence by adding a program to a startup folder or referencing it with a Registry run key. Adding an entry to the "run key

Scheduled Task

Adversaries may abuse the Windows Task Scheduler to perform task scheduling for initial or recurring execution of malicious code. There are multiple w

Scheduled Transfer

Adversaries may schedule data exfiltration to be performed only at certain times of day or at certain intervals. This could be done to blend traffic p

Spearphishing Attachment

Adversaries may send spearphishing emails with a malicious attachment in an attempt to gain access to victim systems. Spearphishing attachment is a sp

Symmetric Cryptography

Adversaries may employ a known symmetric encryption algorithm to conceal command and control traffic rather than relying on any inherent protections p

System Information Discovery

An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and

System Network Configuration Discovery

Adversaries may look for details about the network configuration and settings, such as IP and/or MAC addresses, of systems they access or through info

System Time Discovery

An adversary may gather the system time and/or time zone settings from a local or remote system. The system time is set and stored by services, such a

Visual Basic

Adversaries may abuse Visual Basic (VB) for execution. VB is a programming language created by Microsoft with interoperability with many Windows techn

Web Protocols

Adversaries may communicate using application layer protocols associated with web traffic to avoid detection/network filtering by blending in with exi

Windows Command Shell

Adversaries may abuse the Windows command shell for execution. The Windows command shell ([cmd](https://attack.mitre.org/software/S0106)) is the prima

XSL Script Processing

Adversaries may bypass application control and obscure execution of code by embedding scripts inside XSL files. Extensible Stylesheet Language (XSL) f

Software & Tools (3)

PlugX [malware]

[PlugX](https://attack.mitre.org/software/S0013) is a remote access tool (RAT) with modular plugins that has been used by multiple threat groups.(Cita

certutil [tool]

[certutil](https://attack.mitre.org/software/S0160) is a command-line utility that can be used to obtain certificate authority information and configu

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.

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