Threat Actor

FIN4

Also known as: FIN4

FIN4 is a financially-motivated threat group that has targeted confidential information related to the public financial market, particularly regarding healthcare and pharmaceutical companies, since at least 2013. FIN4 is unique in that they do not infect victims with typical persistent malware, but rather they focus on capturing credentials authorized to access email and other non-public correspondence.

12
Techniques
0
indicators on this record

Properties

Last source
MITRE ATT&CK
STIX ID
intrusion-set--d0b3393b-3bec-4ba3-bda9-199d30db47b6
In Signal since
initial import (Sep 2026)
Retrieved at
2026-11-01T20:39:43+00:00
Type
intrusion-set

MITRE ATT&CK Techniques (12)

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Email Hiding Rules (T1564.008)

Adversaries may use email rules to hide inbound emails in a compromised user's mailbox. Many email clients allow users to create inbox rules for vario

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GUI Input Capture (T1056.002)

Adversaries may mimic common operating system GUI components to prompt users for credentials with a seemingly legitimate prompt. When programs are exe

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Keylogging (T1056.001)

Adversaries may log user keystrokes to intercept credentials as the user types them. Keylogging is likely to be used to acquire credentials for new ac

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Malicious File (T1204.002)

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

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Malicious Link (T1204.001)

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

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Multi-hop Proxy (T1090.003)

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

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Remote Email Collection (T1114.002)

Adversaries may target an Exchange server, Office 365, or Google Workspace to collect sensitive information. Adversaries may leverage a user's credent

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Spearphishing Attachment (T1566.001)

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

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Spearphishing Link (T1566.002)

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

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Valid Accounts (T1078)

Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense

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Visual Basic (T1059.005)

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

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Web Protocols (T1071.001)

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

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FIN4 — Threat Actor Profile — Ninja Signal | Ninja Signal