Skip to content

Hide Navigation Hide TOC

RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7)

RainyDay is a backdoor tool that has been used by Naikon since at least 2020.(Citation: Bitdefender Naikon April 2021)

Cluster A Galaxy A Cluster B Galaxy B Level
Deobfuscate/Decode Files or Information - T1140 (3ccef7ae-cb5e-48f6-8302-897105fbf55c) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Fallback Channels - T1008 (f24faf46-3b26-4dbb-98f2-63460498e433) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Masquerade Task or Service - T1036.004 (7bdca9d5-d500-4d7d-8c52-5fd47baf4c0c) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Data from Local System - T1005 (3c4a2599-71ee-4405-ba1e-0e28414b4bc5) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Match Legitimate Name or Location - T1036.005 (1c4e5d32-1fe9-4116-9d9d-59e3925bd6a2) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Process Discovery - T1057 (8f4a33ec-8b1f-4b80-a2f6-642b2e479580) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Native API - T1106 (391d824f-0ef1-47a0-b0ee-c59a75e27670) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Screen Capture - T1113 (0259baeb-9f63-4c69-bf10-eb038c390688) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware Scheduled Task - T1053.005 (005a06c6-14bf-4118-afa0-ebcd8aebb0c9) Attack Pattern 1
Local Data Staging - T1074.001 (1c34f7aa-9341-4a48-bfab-af22e51aca6c) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
File Deletion - T1070.004 (d63a3fb8-9452-4e9d-a60a-54be68d5998c) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Symmetric Cryptography - T1573.001 (24bfaeba-cb0d-4525-b3dc-507c77ecec41) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Proxy - T1090 (731f4f55-b6d0-41d1-a7a9-072a66389aea) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware File and Directory Discovery - T1083 (7bc57495-ea59-4380-be31-a64af124ef18) Attack Pattern 1
RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware Windows Service - T1543.003 (2959d63f-73fd-46a1-abd2-109d7dcede32) Attack Pattern 1
RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware System Service Discovery - T1007 (322bad5a-1c49-4d23-ab79-76d641794afa) Attack Pattern 1
Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Exfiltration to Cloud Storage - T1567.002 (bf1b6176-597c-4600-bfcd-ac989670f96b) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Credentials from Web Browsers - T1555.003 (58a3e6aa-4453-4cc8-a51f-4befe80b31a8) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware DLL Side-Loading - T1574.002 (e64c62cf-9cd7-4a14-94ec-cdaac43ab44b) Attack Pattern 1
RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware Ingress Tool Transfer - T1105 (e6919abc-99f9-4c6c-95a5-14761e7b2add) Attack Pattern 1
Non-Application Layer Protocol - T1095 (c21d5a77-d422-4a69-acd7-2c53c1faa34b) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
Windows Credential Manager - T1555.004 (d336b553-5da9-46ca-98a8-0b23f49fb447) Attack Pattern RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware 1
RainyDay - S0629 (29231689-5837-4a7a-aafc-1b65b3f50cc7) Malware Windows Command Shell - T1059.003 (d1fcf083-a721-4223-aedf-bf8960798d62) Attack Pattern 1
Masquerade Task or Service - T1036.004 (7bdca9d5-d500-4d7d-8c52-5fd47baf4c0c) Attack Pattern Masquerading - T1036 (42e8de7b-37b2-4258-905a-6897815e58e0) Attack Pattern 2
Match Legitimate Name or Location - T1036.005 (1c4e5d32-1fe9-4116-9d9d-59e3925bd6a2) Attack Pattern Masquerading - T1036 (42e8de7b-37b2-4258-905a-6897815e58e0) Attack Pattern 2
Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a) Attack Pattern Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144) Attack Pattern 2
Scheduled Task - T1053.005 (005a06c6-14bf-4118-afa0-ebcd8aebb0c9) Attack Pattern Scheduled Task/Job - T1053 (35dd844a-b219-4e2b-a6bb-efa9a75995a9) Attack Pattern 2
Data Staged - T1074 (7dd95ff6-712e-4056-9626-312ea4ab4c5e) Attack Pattern Local Data Staging - T1074.001 (1c34f7aa-9341-4a48-bfab-af22e51aca6c) Attack Pattern 2
Indicator Removal - T1070 (799ace7f-e227-4411-baa0-8868704f2a69) Attack Pattern File Deletion - T1070.004 (d63a3fb8-9452-4e9d-a60a-54be68d5998c) Attack Pattern 2
Symmetric Cryptography - T1573.001 (24bfaeba-cb0d-4525-b3dc-507c77ecec41) Attack Pattern Encrypted Channel - T1573 (b8902400-e6c5-4ba2-95aa-2d35b442b118) Attack Pattern 2
Create or Modify System Process - T1543 (106c0cf6-bf73-4601-9aa8-0945c2715ec5) Attack Pattern Windows Service - T1543.003 (2959d63f-73fd-46a1-abd2-109d7dcede32) Attack Pattern 2
Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161) Attack Pattern Application Layer Protocol - T1071 (355be19c-ffc9-46d5-8d50-d6a036c675b6) Attack Pattern 2
Exfiltration to Cloud Storage - T1567.002 (bf1b6176-597c-4600-bfcd-ac989670f96b) Attack Pattern Exfiltration Over Web Service - T1567 (40597f16-0963-4249-bf4c-ac93b7fb9807) Attack Pattern 2
Credentials from Password Stores - T1555 (3fc9b85a-2862-4363-a64d-d692e3ffbee0) Attack Pattern Credentials from Web Browsers - T1555.003 (58a3e6aa-4453-4cc8-a51f-4befe80b31a8) Attack Pattern 2
DLL Side-Loading - T1574.002 (e64c62cf-9cd7-4a14-94ec-cdaac43ab44b) Attack Pattern Hijack Execution Flow - T1574 (aedfca76-3b30-4866-b2aa-0f1d7fd1e4b6) Attack Pattern 2
Credentials from Password Stores - T1555 (3fc9b85a-2862-4363-a64d-d692e3ffbee0) Attack Pattern Windows Credential Manager - T1555.004 (d336b553-5da9-46ca-98a8-0b23f49fb447) Attack Pattern 2
Command and Scripting Interpreter - T1059 (7385dfaf-6886-4229-9ecd-6fd678040830) Attack Pattern Windows Command Shell - T1059.003 (d1fcf083-a721-4223-aedf-bf8960798d62) Attack Pattern 2