build_downer - S0471 (d2c7f8ad-3b50-4cfa-bbb1-799eff06fb40)

build_downer is a downloader that has been used by BRONZE BUTLER since at least 2019.(Citation: Trend Micro Tick November 2019)

Cluster A	Galaxy A	Cluster B	Galaxy B	Level
System Information Discovery - T1082 (354a7f88-63fb-41b5-a801-ce3b377b36f1)	Attack Pattern	build_downer - S0471 (d2c7f8ad-3b50-4cfa-bbb1-799eff06fb40)	Malware	1
System Time Discovery - T1124 (f3c544dc-673c-4ef3-accb-53229f1ae077)	Attack Pattern	build_downer - S0471 (d2c7f8ad-3b50-4cfa-bbb1-799eff06fb40)	Malware	1
build_downer - S0471 (d2c7f8ad-3b50-4cfa-bbb1-799eff06fb40)	Malware	Ingress Tool Transfer - T1105 (e6919abc-99f9-4c6c-95a5-14761e7b2add)	Attack Pattern	1
build_downer - S0471 (d2c7f8ad-3b50-4cfa-bbb1-799eff06fb40)	Malware	Security Software Discovery - T1518.001 (cba37adb-d6fb-4610-b069-dd04c0643384)	Attack Pattern	1
Steganography - T1027.003 (c2e147a9-d1a8-4074-811a-d8789202d916)	Attack Pattern	build_downer - S0471 (d2c7f8ad-3b50-4cfa-bbb1-799eff06fb40)	Malware	1
Native API - T1106 (391d824f-0ef1-47a0-b0ee-c59a75e27670)	Attack Pattern	build_downer - S0471 (d2c7f8ad-3b50-4cfa-bbb1-799eff06fb40)	Malware	1
build_downer - S0471 (d2c7f8ad-3b50-4cfa-bbb1-799eff06fb40)	Malware	Masquerade Task or Service - T1036.004 (7bdca9d5-d500-4d7d-8c52-5fd47baf4c0c)	Attack Pattern	1
Registry Run Keys / Startup Folder - T1547.001 (9efb1ea7-c37b-4595-9640-b7680cd84279)	Attack Pattern	build_downer - S0471 (d2c7f8ad-3b50-4cfa-bbb1-799eff06fb40)	Malware	1
Software Discovery - T1518 (e3b6daca-e963-4a69-aee6-ed4fd653ad58)	Attack Pattern	Security Software Discovery - T1518.001 (cba37adb-d6fb-4610-b069-dd04c0643384)	Attack Pattern	2
Steganography - T1027.003 (c2e147a9-d1a8-4074-811a-d8789202d916)	Attack Pattern	Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a)	Attack Pattern	2
Masquerading - T1036 (42e8de7b-37b2-4258-905a-6897815e58e0)	Attack Pattern	Masquerade Task or Service - T1036.004 (7bdca9d5-d500-4d7d-8c52-5fd47baf4c0c)	Attack Pattern	2
Registry Run Keys / Startup Folder - T1547.001 (9efb1ea7-c37b-4595-9640-b7680cd84279)	Attack Pattern	Boot or Logon Autostart Execution - T1547 (1ecb2399-e8ba-4f6b-8ba7-5c27d49405cf)	Attack Pattern	2