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General
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Target
2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver
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Size
2.9MB
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Sample
250128-rv7vqavkam
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MD5
8cd4a310e3c4f2ce52250eca4f2c630f
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SHA1
2af4e53f40b5b28613d35c82b9768bc78d2fad56
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SHA256
aa89ac89659bffee9a9e8125f67df0c41ded196e282bcd9aa40bb703637a2527
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SHA512
3dcae80f39b429085d4b44aad6b3108e665a6d25e74694ef6730d171866abff60c55e7b4cb31f9520f8d825b041ddc7648aeac2977027bf4d4eb482567ef10d8
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SSDEEP
49152:kZFIlmhRYg1OziGQGRCv6da/KMvxZdAMBwQoxXXujOl4MPMFvfldPSFrXxn3l:jl7i86hR+fWMeP43l
Behavioral task
behavioral1
Sample
2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
meshagent
2
050 Lisboa - Zonesoft
http://fs1.suporte.com.pt:8943/agent.ashx
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mesh_id
0x313CE7C3BD97BA4DE25768478CFB01C142A538B329BAAB8F6B3AB4F4FFEEC83BF0EBE45A831A8A61950A237224143E83
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server_id
0481CF775C2137A6BF13FF516D4E688220F467FB031867C5FBA7771274EA8996A04DF952EDD29FAA3F8190D6B3985533
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wss
wss://fs1.suporte.com.pt:8943/agent.ashx
Targets
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Target
2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver
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Size
2.9MB
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MD5
8cd4a310e3c4f2ce52250eca4f2c630f
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SHA1
2af4e53f40b5b28613d35c82b9768bc78d2fad56
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SHA256
aa89ac89659bffee9a9e8125f67df0c41ded196e282bcd9aa40bb703637a2527
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SHA512
3dcae80f39b429085d4b44aad6b3108e665a6d25e74694ef6730d171866abff60c55e7b4cb31f9520f8d825b041ddc7648aeac2977027bf4d4eb482567ef10d8
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SSDEEP
49152:kZFIlmhRYg1OziGQGRCv6da/KMvxZdAMBwQoxXXujOl4MPMFvfldPSFrXxn3l:jl7i86hR+fWMeP43l
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Detects MeshAgent payload
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Meshagent family
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Modifies Windows Firewall
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Sets service image path in registry
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1