Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)

Bumblebee is a custom loader written in C++ that has been used by multiple threat actors, including possible initial access brokers, to download and execute additional payloads since at least March 2022. Bumblebee has been linked to ransomware operations including Conti, Quantum, and Mountlocker and derived its name from the appearance of "bumblebee" in the user-agent.(Citation: Google EXOTIC LILY March 2022)(Citation: Proofpoint Bumblebee April 2022)(Citation: Symantec Bumblebee June 2022)

Cluster A	Galaxy A	Cluster B	Galaxy B	Level
Virtualization/Sandbox Evasion - T1497 (82caa33e-d11a-433a-94ea-9b5a5fbef81d)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Asynchronous Procedure Call - T1055.004 (7c0f17c9-1af6-4628-9cbd-9e45482dd605)	Attack Pattern	1
Scheduled Task - T1053.005 (005a06c6-14bf-4118-afa0-ebcd8aebb0c9)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a)	Attack Pattern	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	File Deletion - T1070.004 (d63a3fb8-9452-4e9d-a60a-54be68d5998c)	Attack Pattern	1
Component Object Model - T1559.001 (2f6b4ed7-fef1-44ba-bcb8-1b4beb610b64)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Ingress Tool Transfer - T1105 (e6919abc-99f9-4c6c-95a5-14761e7b2add)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Exfiltration Over C2 Channel - T1041 (92d7da27-2d91-488e-a00c-059dc162766d)	Attack Pattern	1
System Owner/User Discovery - T1033 (03d7999c-1f4c-42cc-8373-e7690d318104)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Bypass User Account Control - T1548.002 (120d5519-3098-4e1c-9191-2aa61232f073)	Attack Pattern	1
Rundll32 - T1218.011 (045d0922-2310-4e60-b5e4-3302302cb3c5)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Malicious Link - T1204.001 (ef67e13e-5598-4adc-bdb2-998225874fa9)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Fallback Channels - T1008 (f24faf46-3b26-4dbb-98f2-63460498e433)	Attack Pattern	1
Debugger Evasion - T1622 (e4dc8c01-417f-458d-9ee0-bb0617c1b391)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Visual Basic - T1059.005 (dfd7cc1d-e1d8-4394-a198-97c4cab8aa67)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Shared Modules - T1129 (0a5231ec-41af-4a35-83d0-6bdf11f28c65)	Attack Pattern	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Symmetric Cryptography - T1573.001 (24bfaeba-cb0d-4525-b3dc-507c77ecec41)	Attack Pattern	1
Spearphishing Link - T1566.002 (2b742742-28c3-4e1b-bab7-8350d6300fa7)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Security Software Discovery - T1518.001 (cba37adb-d6fb-4610-b069-dd04c0643384)	Attack Pattern	1
Standard Encoding - T1132.001 (04fd5427-79c7-44ea-ae13-11b24778ff1c)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Odbcconf - T1218.008 (6e3bd510-6b33-41a4-af80-2d80f3ee0071)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	System Information Discovery - T1082 (354a7f88-63fb-41b5-a801-ce3b377b36f1)	Attack Pattern	1
Dynamic-link Library Injection - T1055.001 (f4599aa0-4f85-4a32-80ea-fc39dc965945)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Time Based Checks - T1497.003 (4bed873f-0b7d-41d4-b93a-b6905d1f90b0)	Attack Pattern	1
Malicious File - T1204.002 (232b7f21-adf9-4b42-b936-b9d6f7df856e)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
System Checks - T1497.001 (29be378d-262d-4e99-b00d-852d573628e6)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Process Injection - T1055 (43e7dc91-05b2-474c-b9ac-2ed4fe101f4d)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Query Registry - T1012 (c32f7008-9fea-41f7-8366-5eb9b74bd896)	Attack Pattern	1
Spearphishing Attachment - T1566.001 (2e34237d-8574-43f6-aace-ae2915de8597)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Match Legitimate Resource Name or Location - T1036.005 (1c4e5d32-1fe9-4116-9d9d-59e3925bd6a2)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Deobfuscate/Decode Files or Information - T1140 (3ccef7ae-cb5e-48f6-8302-897105fbf55c)	Attack Pattern	1
Web Service - T1102 (830c9528-df21-472c-8c14-a036bf17d665)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Process Discovery - T1057 (8f4a33ec-8b1f-4b80-a2f6-642b2e479580)	Attack Pattern	1
Windows Management Instrumentation - T1047 (01a5a209-b94c-450b-b7f9-946497d91055)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Windows Command Shell - T1059.003 (d1fcf083-a721-4223-aedf-bf8960798d62)	Attack Pattern	1
Data from Local System - T1005 (3c4a2599-71ee-4405-ba1e-0e28414b4bc5)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	Archive Collected Data - T1560 (53ac20cd-aca3-406e-9aa0-9fc7fdc60a5a)	Attack Pattern	1
PowerShell - T1059.001 (970a3432-3237-47ad-bcca-7d8cbb217736)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Native API - T1106 (391d824f-0ef1-47a0-b0ee-c59a75e27670)	Attack Pattern	Bumblebee - S1039 (04378e79-4387-468a-a8f7-f974b8254e44)	Malware	1
Process Injection - T1055 (43e7dc91-05b2-474c-b9ac-2ed4fe101f4d)	Attack Pattern	Asynchronous Procedure Call - T1055.004 (7c0f17c9-1af6-4628-9cbd-9e45482dd605)	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
Indicator Removal - T1070 (799ace7f-e227-4411-baa0-8868704f2a69)	Attack Pattern	File Deletion - T1070.004 (d63a3fb8-9452-4e9d-a60a-54be68d5998c)	Attack Pattern	2
Component Object Model - T1559.001 (2f6b4ed7-fef1-44ba-bcb8-1b4beb610b64)	Attack Pattern	Inter-Process Communication - T1559 (acd0ba37-7ba9-4cc5-ac61-796586cd856d)	Attack Pattern	2
Abuse Elevation Control Mechanism - T1548 (67720091-eee3-4d2d-ae16-8264567f6f5b)	Attack Pattern	Bypass User Account Control - T1548.002 (120d5519-3098-4e1c-9191-2aa61232f073)	Attack Pattern	2
System Binary Proxy Execution - T1218 (457c7820-d331-465a-915e-42f85500ccc4)	Attack Pattern	Rundll32 - T1218.011 (045d0922-2310-4e60-b5e4-3302302cb3c5)	Attack Pattern	2
Malicious Link - T1204.001 (ef67e13e-5598-4adc-bdb2-998225874fa9)	Attack Pattern	User Execution - T1204 (8c32eb4d-805f-4fc5-bf60-c4d476c131b5)	Attack Pattern	2
Visual Basic - T1059.005 (dfd7cc1d-e1d8-4394-a198-97c4cab8aa67)	Attack Pattern	Command and Scripting Interpreter - T1059 (7385dfaf-6886-4229-9ecd-6fd678040830)	Attack Pattern	2
Encrypted Channel - T1573 (b8902400-e6c5-4ba2-95aa-2d35b442b118)	Attack Pattern	Symmetric Cryptography - T1573.001 (24bfaeba-cb0d-4525-b3dc-507c77ecec41)	Attack Pattern	2
Spearphishing Link - T1566.002 (2b742742-28c3-4e1b-bab7-8350d6300fa7)	Attack Pattern	Phishing - T1566 (a62a8db3-f23a-4d8f-afd6-9dbc77e7813b)	Attack Pattern	2
Software Discovery - T1518 (e3b6daca-e963-4a69-aee6-ed4fd653ad58)	Attack Pattern	Security Software Discovery - T1518.001 (cba37adb-d6fb-4610-b069-dd04c0643384)	Attack Pattern	2
Standard Encoding - T1132.001 (04fd5427-79c7-44ea-ae13-11b24778ff1c)	Attack Pattern	Data Encoding - T1132 (cc7b8c4e-9be0-47ca-b0bb-83915ec3ee2f)	Attack Pattern	2
System Binary Proxy Execution - T1218 (457c7820-d331-465a-915e-42f85500ccc4)	Attack Pattern	Odbcconf - T1218.008 (6e3bd510-6b33-41a4-af80-2d80f3ee0071)	Attack Pattern	2
Dynamic-link Library Injection - T1055.001 (f4599aa0-4f85-4a32-80ea-fc39dc965945)	Attack Pattern	Process Injection - T1055 (43e7dc91-05b2-474c-b9ac-2ed4fe101f4d)	Attack Pattern	2
Virtualization/Sandbox Evasion - T1497 (82caa33e-d11a-433a-94ea-9b5a5fbef81d)	Attack Pattern	Time Based Checks - T1497.003 (4bed873f-0b7d-41d4-b93a-b6905d1f90b0)	Attack Pattern	2
Malicious File - T1204.002 (232b7f21-adf9-4b42-b936-b9d6f7df856e)	Attack Pattern	User Execution - T1204 (8c32eb4d-805f-4fc5-bf60-c4d476c131b5)	Attack Pattern	2
Virtualization/Sandbox Evasion - T1497 (82caa33e-d11a-433a-94ea-9b5a5fbef81d)	Attack Pattern	System Checks - T1497.001 (29be378d-262d-4e99-b00d-852d573628e6)	Attack Pattern	2
Spearphishing Attachment - T1566.001 (2e34237d-8574-43f6-aace-ae2915de8597)	Attack Pattern	Phishing - T1566 (a62a8db3-f23a-4d8f-afd6-9dbc77e7813b)	Attack Pattern	2
Match Legitimate Resource Name or Location - T1036.005 (1c4e5d32-1fe9-4116-9d9d-59e3925bd6a2)	Attack Pattern	Masquerading - T1036 (42e8de7b-37b2-4258-905a-6897815e58e0)	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
PowerShell - T1059.001 (970a3432-3237-47ad-bcca-7d8cbb217736)	Attack Pattern	Command and Scripting Interpreter - T1059 (7385dfaf-6886-4229-9ecd-6fd678040830)	Attack Pattern	2