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General
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Target
SilverClient.exe
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Size
44KB
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Sample
250301-2h314svpv7
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MD5
d071e0b0ffb78b23455d86851db9f831
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SHA1
ff885d3404c1012bce1d81baac81fc83f66e20fe
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SHA256
c37cfd7388fe33490034ec8d0e15a5fae2cf5222c7e653630589a6b5f162103d
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SHA512
a4c60342d1be1612585d508d489822ca320b137a5a49f4c241769f47bd36be9cd5670dc53e4492cbe64229e07d66bb3198c9ede4816815485f11d1ab4e98e391
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SSDEEP
768:nbEGmYoMvO4bHYYtQRuecCVh8K2xA3E1wHRUjQv9S/Snu+QSB6SvZMJvrBWNbE:ngbhYKRueHYsHGUv9s+5o0SJVWNbE
Behavioral task
behavioral1
Sample
SilverClient.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
SilverClient.exe
Resource
win10v2004-20250217-en
Malware Config
Extracted
silverrat
1.0.0.0
4.tcp.ngrok.io:13975
lAxDBRhAFu
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certificate
MIIE4DCCAsigAwIBAgIQAKQYOfZd86J2BfNjhG4CWTANBgkqhkiG9w0BAQ0FADARMQ8wDQYDVQQDDAZTaWx2ZXIwIBcNMjIwODI2MTkwMTA4WhgPOTk5OTEyMzEyMzU5NTlaMBExDzANBgNVBAMMBlNpbHZlcjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAPbpOWfhZTuOfEaqqImTTe5dNHAAry7/mf00DCoI4lPZfypsc1tYraxSPFeayGu09a3qdhkWKSVIgwnu2n4GLQNOCY9fh/1oyrX4Iir3BIkYeU7pKTWgjhUlAmFAUAaNr0ca23Ku2kN79jrDzRznOgE2DEW4p7OiM4Mb097ma9lzu7MyssHbY4VCteAhj9HZiplqBxaC1vXDmzxqG+gUZ1aLcyG7ssdkOjtWVBgT3gD/gOl7KchRzCFB1egDC/vD9WZCG35U3Ngi+IkTznoXR1R06cq4v0UnGjE37R2vcB21qb0ZYNiZJXZHv5i9+R7xoPeNoLda5PqnfGGbhPvNEdD56mdcOKlzGIuyemLkUo8texdpiBWKbtc3JZf5VsKxjJtHDK3xW6gDGI+PAirzGkFPmwcf8WgsblvzLg8OZpVxVs8rmKWoi6qIrf4CXnyl73J4lgzW+ir7PjANAQXwLNGdNnvdMeLeo/muGQPdeNpr6OczGGnkWA4qniHeL51/Gx0a8A+jP9zKiyu+qHcsP2IotgWDH/KlzJVr7IAum+DV92uV8poTDcUNcHaKvhHA65KmEtsvLbK6lFZcAMC0eWC0VgpW44T1/16rOaaky5mP6rTMc3nSyOl/lU/XgAgGGQPe22bRLWYzd3WVeEpI1WnHYXS+tL9IOe4kJP+pYsWDAgMBAAGjMjAwMB0GA1UdDgQWBBR32TJj2LeUx9L+RcSOvmFV6VJq6TAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3DQEBDQUAA4ICAQA+qucSOi7ov7Q1FmAjMf925KuvKuCNwJiu3Sqo3FDGVAD1fAwAi2FdyuXEO2VIUPZCkalFcBna5rqyrc6tcS4T0IL2TsYLrsuGir7PWP7CAcft1urYS1HpNpHxeH/nixwnQaQs/MuRmdm2TeCj6G21P5BTW55U5y9sMPSYwhbD2N7XLgnSQd5Y+80TR7FUiye/k3D37fI9PRhSQGbfYFRQQTmxj84dPTnY5CVgaY9d8fNiFZkyjaZdf+mibK0xQTf+xLVVj+toDNCkc1F462TdmFhCrHd4PoMo0yLDNv4SC6NLRq4haWDRtORw6gd5GYIoCQ3m3oQvNlNxXhhIjsOyxkxOrkCD0c+57PIc7EmKXieJa/XxnkcIVxO8dvTY/vijuz/VaZYl/lPu9ckuqgJ1wRvvsHl70Trv4Mn4X5uCIqRFFlK/mSOZbLIguGkDN3QIZABvej89vlZMhrVfZOG2oawe23FskHjv7thF/WzOXtWw6RUVC1V+hCwbuxFNUjZmmOTUwdXHnus7I2AuiG6Jz1+y9aYiXBcVTdSljxjHRRmiRaAnY94h58vN8NJ4hKL2GVCo6LxkpuplmcntJN0cKraKTPxSXcCRrqWxX9qoIbfvBcUU4vH1jPJCCLNCuDyD3lgQkpPVvq0EMU1a2HFGgMEQMjpYpb38rcadDhT5ag==
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decrypted_key
-|S.S.S|-
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discord
https://discord.com/api/webhooks/1345519723651006547/1osSQ83PtyY43SLnhWBuoR8KAzXdHONoKnCscV1R6yfHIhgTpaWGyVY0jpsE0y3YkSzc
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key
yy6zDjAUmbB09pKvo5Hhug==
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key_x509
U2pYbXhHdVRmV3pFU2JkYkF2ZlBhU2FSUEh2dlVV
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payload_url
https://g.top4top.io/p_2522c7w8u1.png
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reconnect_delay
4
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server_signature
yYVhLx7BDVj8OoPAdk2wduk+VxEe8mfCQHl9aHfQeLTEJdnKImoui7kEw5MbKbxidqB1JpcaE/KAdVjZghQJLOrPWTBfX31kUWdirw/oKIOYtOwN5iETUSm7+mGVPKl86rna3p6QDa9Vyg01Y23i4LtiSGBoIbfWpLMSjIn8/Q3n0VuSlfQoD19jdQbKfdXUJjyiYl7QyLfbhrMYfBAvQ+3pn9Uqg11dNq6+LH0N4ewx7DoIKVwCXA3jLn9fOraeBk7+SRUrGT+POlDtacvM3V6olVRTFumyaBULspK/3+kifzkmuvx76TmXfQpBDykUTy4KIWr1bi3EVRr6i5MoWt9e7tJ/f7v0jlu7FA06PyicgG1e1eTk02zxOHYD7CrHwV9y/hq+72oqpXE4zfBKTcD7IJDs6MsUF6hly4gC48M0sh+7ZUaXwixV7atIf+Em+tq4O6qdgQJ/oGKIQwjUiv9DUYR9CmWA2Qa0WdVOvchWMdiR5wFRwPL/VHA2WwBLFijqC4fv0M222qn2aYi2aPPHp21nTCvjj+m8lzdUdoj/f3wDfjoA8nml+bZCXcwZ65T0ZIxhf17tJbvdELwGZMeY9H8m9VuX5Nebpep5ttD70NSkvLVsGRzK5tYHze7YC/w8ePXQFLfkKhV9VXMZO8QaxaFUIVdQoMafGQ87yfM=
Targets
-
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Target
SilverClient.exe
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Size
44KB
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MD5
d071e0b0ffb78b23455d86851db9f831
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SHA1
ff885d3404c1012bce1d81baac81fc83f66e20fe
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SHA256
c37cfd7388fe33490034ec8d0e15a5fae2cf5222c7e653630589a6b5f162103d
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SHA512
a4c60342d1be1612585d508d489822ca320b137a5a49f4c241769f47bd36be9cd5670dc53e4492cbe64229e07d66bb3198c9ede4816815485f11d1ab4e98e391
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SSDEEP
768:nbEGmYoMvO4bHYYtQRuecCVh8K2xA3E1wHRUjQv9S/Snu+QSB6SvZMJvrBWNbE:ngbhYKRueHYsHGUv9s+5o0SJVWNbE
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Silverrat family
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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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Loads dropped DLL
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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1