Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)

Shark is a backdoor malware written in C# and .NET that is an updated version of Milan; it has been used by HEXANE since at least July 2021.(Citation: ClearSky Siamesekitten August 2021)(Citation: Accenture Lyceum Targets November 2021)

Cluster A	Galaxy A	Cluster B	Galaxy B	Level
System Information Discovery - T1082 (354a7f88-63fb-41b5-a801-ce3b377b36f1)	Attack Pattern	Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	1
Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144)	Attack Pattern	Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	1
File Deletion - T1070.004 (d63a3fb8-9452-4e9d-a60a-54be68d5998c)	Attack Pattern	Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	1
Scheduled Transfer - T1029 (4eeaf8a9-c86b-4954-a663-9555fb406466)	Attack Pattern	Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	1
Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	DNS - T1071.004 (1996eef1-ced3-4d7f-bf94-33298cabbf72)	Attack Pattern	1
Deobfuscate/Decode Files or Information - T1140 (3ccef7ae-cb5e-48f6-8302-897105fbf55c)	Attack Pattern	Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	1
Data Staged - T1074 (7dd95ff6-712e-4056-9626-312ea4ab4c5e)	Attack Pattern	Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	1
Fallback Channels - T1008 (f24faf46-3b26-4dbb-98f2-63460498e433)	Attack Pattern	Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	1
Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	Ingress Tool Transfer - T1105 (e6919abc-99f9-4c6c-95a5-14761e7b2add)	Attack Pattern	1
Query Registry - T1012 (c32f7008-9fea-41f7-8366-5eb9b74bd896)	Attack Pattern	Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	1
Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	Match Legitimate Name or Location - T1036.005 (1c4e5d32-1fe9-4116-9d9d-59e3925bd6a2)	Attack Pattern	1
Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	Windows Command Shell - T1059.003 (d1fcf083-a721-4223-aedf-bf8960798d62)	Attack Pattern	1
Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161)	Attack Pattern	1
Domain Generation Algorithms - T1568.002 (118f61a5-eb3e-4fb6-931f-2096647f4ecd)	Attack Pattern	Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	1
Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	Exfiltration Over C2 Channel - T1041 (92d7da27-2d91-488e-a00c-059dc162766d)	Attack Pattern	1
Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	System Checks - T1497.001 (29be378d-262d-4e99-b00d-852d573628e6)	Attack Pattern	1
Data from Local System - T1005 (3c4a2599-71ee-4405-ba1e-0e28414b4bc5)	Attack Pattern	Shark - S1019 (99854cc8-f202-4e03-aa0a-4f8a4af93229)	Malware	1
Encrypted/Encoded File - T1027.013 (0d91b3c0-5e50-47c3-949a-2a796f04d144)	Attack Pattern	Obfuscated Files or Information - T1027 (b3d682b6-98f2-4fb0-aa3b-b4df007ca70a)	Attack Pattern	2
File Deletion - T1070.004 (d63a3fb8-9452-4e9d-a60a-54be68d5998c)	Attack Pattern	Indicator Removal - T1070 (799ace7f-e227-4411-baa0-8868704f2a69)	Attack Pattern	2
Application Layer Protocol - T1071 (355be19c-ffc9-46d5-8d50-d6a036c675b6)	Attack Pattern	DNS - T1071.004 (1996eef1-ced3-4d7f-bf94-33298cabbf72)	Attack Pattern	2
Masquerading - T1036 (42e8de7b-37b2-4258-905a-6897815e58e0)	Attack Pattern	Match Legitimate Name or Location - T1036.005 (1c4e5d32-1fe9-4116-9d9d-59e3925bd6a2)	Attack Pattern	2
Windows Command Shell - T1059.003 (d1fcf083-a721-4223-aedf-bf8960798d62)	Attack Pattern	Command and Scripting Interpreter - T1059 (7385dfaf-6886-4229-9ecd-6fd678040830)	Attack Pattern	2
Application Layer Protocol - T1071 (355be19c-ffc9-46d5-8d50-d6a036c675b6)	Attack Pattern	Web Protocols - T1071.001 (df8b2a25-8bdf-4856-953c-a04372b1c161)	Attack Pattern	2
Domain Generation Algorithms - T1568.002 (118f61a5-eb3e-4fb6-931f-2096647f4ecd)	Attack Pattern	Dynamic Resolution - T1568 (7bd9c723-2f78-4309-82c5-47cad406572b)	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