Analysis
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max time kernel
76s -
max time network
75s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
27-11-2024 22:34
Behavioral task
behavioral1
Sample
Windows Security Notification.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
Windows Security Notification.exe
Resource
win10v2004-20241007-en
General
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Target
Windows Security Notification.exe
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Size
45KB
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MD5
5fda3d7416d93b283fcfac83b8f43545
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SHA1
7a02df298674f3f1c83f1417e9ff1ad096d94a3f
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SHA256
00de7adc67830d497e8a0a97e2de7b8fe671461d15c2141a822a07137f237991
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SHA512
68272ad67cf8c340ced850c7f0dd46594e4071e92347ede68089afc908509f4f1b8c7fda56c35e4145fdd09ce68a8ce26670bdac89abd0b826cb8af475a0d7d9
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SSDEEP
768:3NIuPbqQXm/tfDffXG4Jeim+ecRULQWB9hsyz1QB6SpAdvru/CS:3zPU/tfL/hmpcGsA931Qo0AdS/CS
Malware Config
Extracted
silverrat
1.0.0.0
FBIInvestigation-50886.portmap.host:50886
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/1307565058028736522/BvuPOnvMCGBluGhgPBunWxSW6sccMPE50iCM97Bct0vExaNkF3__xy6dkdmzHQG2t597
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key
yy6zDjAUmbB09pKvo5Hhug==
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key_x509
b0FGeVZNcFRMWVloVHR6Z0VESU5RdlpZUmxZbUFE
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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
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
Signatures
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Silverrat family
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Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
pid Process 2096 attrib.exe 852 attrib.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation Windows Security Notification.exe -
Executes dropped EXE 1 IoCs
pid Process 3504 $77Windows Security Notification.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "\"C:\\Users\\Admin\\Windows Security Notification\\$77Windows Security Notification.exe\"" Windows Security Notification.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 19 discord.com 20 discord.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName taskmgr.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 3004 timeout.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3312 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 1156 Windows Security Notification.exe 3504 $77Windows Security Notification.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 8 IoCs
description pid Process Token: SeBackupPrivilege 3928 vssvc.exe Token: SeRestorePrivilege 3928 vssvc.exe Token: SeAuditPrivilege 3928 vssvc.exe Token: SeDebugPrivilege 1156 Windows Security Notification.exe Token: SeDebugPrivilege 3504 $77Windows Security Notification.exe Token: SeDebugPrivilege 3748 taskmgr.exe Token: SeSystemProfilePrivilege 3748 taskmgr.exe Token: SeCreateGlobalPrivilege 3748 taskmgr.exe -
Suspicious use of FindShellTrayWindow 55 IoCs
pid Process 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe -
Suspicious use of SendNotifyMessage 55 IoCs
pid Process 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe 3748 taskmgr.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3504 $77Windows Security Notification.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1156 wrote to memory of 2096 1156 Windows Security Notification.exe 87 PID 1156 wrote to memory of 2096 1156 Windows Security Notification.exe 87 PID 1156 wrote to memory of 852 1156 Windows Security Notification.exe 89 PID 1156 wrote to memory of 852 1156 Windows Security Notification.exe 89 PID 1156 wrote to memory of 4908 1156 Windows Security Notification.exe 104 PID 1156 wrote to memory of 4908 1156 Windows Security Notification.exe 104 PID 4908 wrote to memory of 3004 4908 cmd.exe 106 PID 4908 wrote to memory of 3004 4908 cmd.exe 106 PID 4908 wrote to memory of 3504 4908 cmd.exe 107 PID 4908 wrote to memory of 3504 4908 cmd.exe 107 PID 3504 wrote to memory of 3040 3504 $77Windows Security Notification.exe 109 PID 3504 wrote to memory of 3040 3504 $77Windows Security Notification.exe 109 PID 3504 wrote to memory of 3312 3504 $77Windows Security Notification.exe 111 PID 3504 wrote to memory of 3312 3504 $77Windows Security Notification.exe 111 PID 3504 wrote to memory of 4764 3504 $77Windows Security Notification.exe 113 PID 3504 wrote to memory of 4764 3504 $77Windows Security Notification.exe 113 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
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Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 2096 attrib.exe 852 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Windows Security Notification.exe"C:\Users\Admin\AppData\Local\Temp\Windows Security Notification.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1156 -
C:\Windows\System32\attrib.exe"C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\Windows Security Notification"2⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2096
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C:\Windows\System32\attrib.exe"C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\Windows Security Notification\$77Windows Security Notification.exe"2⤵
- Sets file to hidden
- Views/modifies file attributes
PID:852
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD011.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
PID:4908 -
C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
PID:3004
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C:\Users\Admin\Windows Security Notification\$77Windows Security Notification.exe"C:\Users\Admin\Windows Security Notification\$77Windows Security Notification.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3504 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks.exe" /query /TN $77Windows Security Notification.exe4⤵PID:3040
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C:\Windows\SYSTEM32\schtasks.exe"schtasks.exe" /Create /SC ONCE /TN "$77Windows Security Notification.exe" /TR "C:\Users\Admin\Windows Security Notification\$77Windows Security Notification.exe \"\$77Windows Security Notification.exe\" /AsAdmin" /ST 00:01 /IT /F /RL HIGHEST4⤵
- Scheduled Task/Job: Scheduled Task
PID:3312
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C:\Windows\SYSTEM32\schtasks.exe"schtasks.exe" /query /TN $77Windows Security Notification.exe4⤵PID:4764
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3928
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3748
Network
MITRE ATT&CK Enterprise v15
Persistence
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
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Modify Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
190B
MD57f3980a7e7b7eb674dad47e288e6887c
SHA13fe7a5440c6ac286153f1096c640129d1578df7d
SHA256a1558a10d4b0756052b44be6dee73573147c6755110dac5738a7675e4c7fbe48
SHA512939be5356268baba31d8f2e25b4ed25d498e5e8d8c02b98189568babed1e5cf71f57c1e53363ecd1e4adf49385ff4989b0a66a7fe3f242bf97c78fe2be24f108
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Filesize
45KB
MD55fda3d7416d93b283fcfac83b8f43545
SHA17a02df298674f3f1c83f1417e9ff1ad096d94a3f
SHA25600de7adc67830d497e8a0a97e2de7b8fe671461d15c2141a822a07137f237991
SHA51268272ad67cf8c340ced850c7f0dd46594e4071e92347ede68089afc908509f4f1b8c7fda56c35e4145fdd09ce68a8ce26670bdac89abd0b826cb8af475a0d7d9