5.t Downloader

aliases

Last seen:Mar 17, 2026

Intelligence Profile

Downloader used in suspected APT attack against Vietnam.

Threat Analysis

5.t Downloader is a advanced-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of espionage.

The group's espionage-oriented operations suggest a state-sponsored or state-aligned mandate, typically focused on stealing intellectual property, government secrets, or military intelligence. Targets are usually selected for strategic value rather than financial gain.

Classified as an advanced threat actor, 5.t Downloader likely develops or acquires zero-day exploits, employs custom malware toolchains, and demonstrates long-term persistence capabilities — hallmarks of a well-resourced operation consistent with nation-state backing.

External References

→https://blog.checkpoint.com/research/chinese-espionage-campaign-expands-to-target-africa-and-the-caribbean/

→https://blog.vincss.net/re022-part-1-quick-analysis-of-malicious-sample-forging-the-official-dispatch-of-the-central-inspection-committee/

→https://kienmanowar.wordpress.com/2022/01/26/quicknote-analysis-of-malware-suspected-to-be-an-apt-attack-targeting-vietnam/

→https://research.checkpoint.com/2023/pandas-with-a-soul-chinese-espionage-attacks-against-southeast-asian-government-entities/

→https://research.checkpoint.com/2024/sharp-dragon-expands-towards-africa-and-the-caribbean/

Quick Facts

TypeAPT / Threat Group

Motivation🕵️ espionage

Sophisticationadvanced

Aliases2

Also Known As

5.t Downloaderwin.5t_downloader

External Intelligence

Malpedia: win.5t_downloader

Research Links

MITRE ATT&CK VirusTotal Google (news) Twitter/X search

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

← All Threat Actors·Geopolitics Map·Search 5.t Downloader