Threat Group Cards: A Threat Actor Encyclopedia Archived: 2026-04-05 21:25:04 UTC Home > List all groups > List all tools > List all groups using tool DoppelPaymer Tool: DoppelPaymer Names DoppelPaymer Pay OR Grief Category Malware Type Ransomware, Big Game Hunting Description (CrowdStrike) We have dubbed this new ransomware DoppelPaymer because it shares most of its code with the BitPaymer ransomware operated by INDRIK SPIDER. However, there are a number of differences between DoppelPaymer and BitPaymer, which may signify that one or more members of INDRIK SPIDER have split from the group and forked the source code of both Dridex and BitPaymer to start their own Big Game Hunting ransomware operation. Information Malpedia AlienVault OTX Last change to this tool card: 28 December 2022 Download this tool card in JSON format All groups using tool DoppelPaymer Changed Name Country Observed APT groups Doppel Spider 2019-May 2025 1 group listed (1 APT, 0 other, 0 unknown) https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=6e1df6f2-f969-4cd0-bc33-e25588eb2672 Page 1 of 2 Source: https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=6e1df6f2-f969-4cd0-bc33-e25588eb2672 https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=6e1df6f2-f969-4cd0-bc33-e25588eb2672 Page 2 of 2 APT groups Doppel Spider 2019-May 2025 1 group listed (1 APT, 0 other, 0 unknown) Page 1 of 2