General
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Target
2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver
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Size
2.9MB
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Sample
241203-cs4mysvnbz
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MD5
0aa9dc10bf05ec4c4d4b9baa5cbb6f1f
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SHA1
6f157cb52d687a9b960bf67aa2448fc7e5d2db17
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SHA256
cfc9778f772c8c8daa33a520e3adbfa7fad6b33ee0d5dd104f5580eaf52eed82
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SHA512
cb36426922341cf3586caa15cbf05982df8ed9df4cc4faccb1c9ac4e3c193a17ac04cc4c0987bcf6f6223c07e6ff3055be3d1d00b963fb65495887916179e13d
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SSDEEP
49152:iiQagHg5EVhwQd+qrW+i1w+Tqc0KxZbDOCwMDbyeKw3FGMFvfjPW21I3iIJn:3g7hRdj9iMlHBSFBWZn
Behavioral task
behavioral1
Sample
2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe
Resource
win7-20240708-en
Malware Config
Extracted
meshagent
2
test
http://heimdall.hostedhero.com:443/agent.ashx
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mesh_id
0x4E4070D78AFFA88AFDD57BD66456CDBE2034549498474E2723BF29A67E0608F067A66207C3C42FCD04E348988CD8E892
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server_id
316B450D4320A8D7AF354D9F06DF347C98693E4AA9014FC7CFEF9940F3F338B0853FADD2076DF2D06D5810331C87BF50
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wss
wss://heimdall.hostedhero.com:443/agent.ashx
Targets
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Target
2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver
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Size
2.9MB
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MD5
0aa9dc10bf05ec4c4d4b9baa5cbb6f1f
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SHA1
6f157cb52d687a9b960bf67aa2448fc7e5d2db17
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SHA256
cfc9778f772c8c8daa33a520e3adbfa7fad6b33ee0d5dd104f5580eaf52eed82
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SHA512
cb36426922341cf3586caa15cbf05982df8ed9df4cc4faccb1c9ac4e3c193a17ac04cc4c0987bcf6f6223c07e6ff3055be3d1d00b963fb65495887916179e13d
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SSDEEP
49152:iiQagHg5EVhwQd+qrW+i1w+Tqc0KxZbDOCwMDbyeKw3FGMFvfjPW21I3iIJn:3g7hRdj9iMlHBSFBWZn
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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