MALWARE FAMILY💰 FINANCIALHIGH

LDR4

Internal ID: win.ldr4
1
aliases
Last seen:Mar 17, 2026

Intelligence Profile

A further branch of the URSNIF collection of malware families. According to Mandiant, it no longer has focus on banking fraud but generic backdoor capabilities instead.

Threat Analysis

LDR4 is a malware family tracked by threat intelligence researchers and catalogued in the Malpedia dataset. It represents a distinct malicious software lineage with identifiable code characteristics, behaviors, and victimology.

Financially motivated threat actors like LDR4 prioritize monetary gain through methods such as ransomware deployment, banking trojans, cryptocurrency theft, BEC scams, or credential harvesting for resale on underground markets.

With high sophistication, LDR4 is capable of targeted intrusions using adapted commodity tools alongside custom implants, maintaining operational security and evading standard detection mechanisms.

External References

Quick Facts

TypeMalware Family
Motivation💰 financial
Sophisticationhigh
Aliases1

Also Known As

win.ldr4

Research Links

Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.