Analysis
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max time kernel
98s -
max time network
98s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
23-11-2024 14:33
General
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Target
OneDrive.exe
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Size
112KB
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MD5
8265876f1419ac9f2789c779ca8756b7
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SHA1
349c89b04a29da021401102888889ce7e593ada4
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SHA256
ef948ec84c52a12fadc9597dd0b3234783da66a983aecf52a9ca7ad97d077605
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SHA512
3f8f3b7da9f8a29080cb84f0b9a34170a1da63e39d91b6706a9b25d7f1b55033051601e04735ac482a57b4285c77d04bc5817aa15f7d8565541a2a2e4b5eb218
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SSDEEP
1536:abiue98UKpsOUFGsI9x1Qom1VZs/iMeLWs8zNJf:qiu68Dq3FGsI9x1lSrfLWs8zNJf
Malware Config
Extracted
silverrat
1.0.0.0
reserved-compilation.gl.at.ply.gg:30333
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/1309888185597427763/ETaHhLbZDsm-U9W1k9LnAs5qSHWvjnwQyurgXK_j1ZDoqixvf9wWgl7hA5cBSCQU7y7A
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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
SilverRat is trojan written in C#.
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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.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 2 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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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.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Delays execution with timeout.exe 1 IoCs
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Modifies registry class 6 IoCs
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Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of AdjustPrivilegeToken 8 IoCs
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Suspicious use of FindShellTrayWindow 64 IoCs
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Suspicious use of SendNotifyMessage 64 IoCs
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Suspicious use of SetWindowsHookEx 9 IoCs
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Suspicious use of WriteProcessMemory 16 IoCs
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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
Processes
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C:\Users\Admin\AppData\Local\Temp\OneDrive.exe"C:\Users\Admin\AppData\Local\Temp\OneDrive.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\attrib.exe"C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\Microsoft OneDrive"2⤵
- Sets file to hidden
- Views/modifies file attributes
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C:\Windows\System32\attrib.exe"C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\Microsoft OneDrive\$77OneDrive.exe"2⤵
- Sets file to hidden
- Views/modifies file attributes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp72F.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\Microsoft OneDrive\$77OneDrive.exe"C:\Users\Admin\Microsoft OneDrive\$77OneDrive.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks.exe" /query /TN $77OneDrive.exe4⤵
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C:\Windows\SYSTEM32\schtasks.exe"schtasks.exe" /Create /SC ONCE /TN "$77OneDrive.exe" /TR "C:\Users\Admin\Microsoft OneDrive\$77OneDrive.exe \"\$77OneDrive.exe\" /AsAdmin" /ST 00:01 /IT /F /RL HIGHEST4⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SYSTEM32\schtasks.exe"schtasks.exe" /query /TN $77OneDrive.exe4⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Loads dropped DLL
- Checks SCSI registry key(s)
- Checks processor information in registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
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C:\Program Files\VideoLAN\VLC\vlc.exe"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\Desktop\ResolveNew.m3u"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
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
157B
MD57248f9d6029ac318c9cfdfadc7941908
SHA17a71948ba6e735c899bfff0146ffcdeddcc9e2b4
SHA2566794be011565f8accbd705c39e945050c1769d39238c72e33c94199cbae8f667
SHA512c27ef51c34109d6d1a267975052207d16db20e31fddc66d449131bb1955f6ed94c969d8ddeed4b0de6d3bc8383bdaa464af0eef1f94e650dc9abee565c9f11df
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Filesize
112KB
MD58265876f1419ac9f2789c779ca8756b7
SHA1349c89b04a29da021401102888889ce7e593ada4
SHA256ef948ec84c52a12fadc9597dd0b3234783da66a983aecf52a9ca7ad97d077605
SHA5123f8f3b7da9f8a29080cb84f0b9a34170a1da63e39d91b6706a9b25d7f1b55033051601e04735ac482a57b4285c77d04bc5817aa15f7d8565541a2a2e4b5eb218
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Filesize
68KB
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Filesize
132KB
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Filesize
16.7MB
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Filesize
68KB
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Filesize
68KB
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Filesize
2.7MB
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Filesize
992KB
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Filesize
96KB
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Filesize
260KB
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Filesize
2.0MB
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Filesize
96KB
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Filesize
68KB
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Filesize
68KB
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Filesize
212KB
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Filesize
92KB
-
Filesize
92KB
-
Filesize
208KB
-
Filesize
68KB
-
Filesize
116KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
128KB
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Filesize
10.8MB
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Filesize
8KB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
64KB