Threat Group Cards: A Threat Actor Encyclopedia Archived: 2026-04-02 11:46:35 UTC Home > List all groups > List all tools > List all groups using tool ArtraDownloader Tool: ArtraDownloader Names ArtraDownloader Artra Downloader Category Malware Type Downloader Description (Palo Alto) Overall, the ArtraDownloader malware family is not sophisticated, leveraging simple registry keys for persistence and HTTP requests to download and execute a remote file. Important strings within these samples are obfuscated by adding or subtracting from each byte within a string. This same obfuscation routine is used when sending data via HTTP. This downloader has frequently been observed downloading the Remote Access Trojan (RAT) BitterRAT which is associated with BITTER threat operations. Information Malpedia AlienVault OTX Last change to this tool card: 28 December 2022 Download this tool card in JSON format All groups using tool ArtraDownloader Changed Name Country Observed APT groups Bitter [South Asia] 2013-Nov 2024 https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=b8d91e49-6460-40aa-9a70-28398600fb95 Page 1 of 2 Patchwork, Dropping Elephant 2013-Jun 2025   2 groups listed (2 APT, 0 other, 0 unknown) Source: https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=b8d91e49-6460-40aa-9a70-28398600fb95 https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=b8d91e49-6460-40aa-9a70-28398600fb95 Page 2 of 2