Analysis Overview
SHA256
319fb56f8db50bcf490d25f374acf3d7199e66ec1a8d192a97eb5ca7e767bd6b
Threat Level: Known bad
The file SilverClient.exe was found to be: Known bad.
Malicious Activity Summary
Silverrat family
SilverRat
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
Unsigned PE
Uses Task Scheduler COM API
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-02-23 16:09
Signatures
Silverrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-02-23 16:09
Reported
2025-02-23 16:11
Platform
win7-20241010-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
SilverRat
Silverrat family
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Enumerates physical storage devices
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SilverClient.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\SilverClient.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SilverClient.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\SilverClient.exe
"C:\Users\Admin\AppData\Local\Temp\SilverClient.exe"
C:\Windows\system32\schtasks.exe
"schtasks.exe" /query /TN SilverClient.exe
C:\Windows\system32\schtasks.exe
"schtasks.exe" /Create /SC ONCE /TN "SilverClient.exe" /TR "C:\Users\Admin\AppData\Local\Temp\SilverClient.exe \"\SilverClient.exe\" /AsAdmin" /ST 00:01 /IT /F /RL HIGHEST
C:\Windows\system32\schtasks.exe
"schtasks.exe" /query /TN SilverClient.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionExtension exe,bat,dll,ps1;exit
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc daily /tn "_Task-DAILY-21PM" /TR "%MyFile%" /ST 21:00
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | paul-nw.gl.at.ply.gg | udp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
Files
memory/1056-0-0x000007FEF4F13000-0x000007FEF4F14000-memory.dmp
memory/1056-1-0x000000013FDB0000-0x000000013FDBE000-memory.dmp
memory/1056-2-0x000007FEF4F10000-0x000007FEF58FC000-memory.dmp
memory/2360-7-0x000000001B540000-0x000000001B822000-memory.dmp
memory/2360-8-0x0000000002720000-0x0000000002728000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\CabF614.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
memory/1056-25-0x000007FEF4F13000-0x000007FEF4F14000-memory.dmp
memory/1056-26-0x000007FEF4F10000-0x000007FEF58FC000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-02-23 16:09
Reported
2025-02-23 16:11
Platform
win10v2004-20250217-en
Max time kernel
148s
Max time network
152s
Command Line
Signatures
SilverRat
Silverrat family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-925314154-1797147466-1467878628-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\SilverClient.exe | N/A |
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Enumerates physical storage devices
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\System32\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SilverClient.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\SilverClient.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SilverClient.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\SilverClient.exe
"C:\Users\Admin\AppData\Local\Temp\SilverClient.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks.exe" /query /TN SilverClient.exe
C:\Windows\SYSTEM32\schtasks.exe
"schtasks.exe" /Create /SC ONCE /TN "SilverClient.exe" /TR "C:\Users\Admin\AppData\Local\Temp\SilverClient.exe \"\SilverClient.exe\" /AsAdmin" /ST 00:01 /IT /F /RL HIGHEST
C:\Windows\SYSTEM32\schtasks.exe
"schtasks.exe" /query /TN SilverClient.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionExtension exe,bat,dll,ps1;exit
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc daily /tn "_Task-DAILY-21PM" /TR "%MyFile%" /ST 21:00
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | paul-nw.gl.at.ply.gg | udp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 52.168.117.169:443 | tcp | |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 150.171.28.10:443 | tcp | |
| US | 150.171.28.10:443 | tcp | |
| US | 150.171.28.10:443 | tcp | |
| US | 150.171.28.10:443 | tcp | |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
| US | 147.185.221.25:51413 | paul-nw.gl.at.ply.gg | tcp |
Files
memory/4988-0-0x00007FFC7F7E3000-0x00007FFC7F7E5000-memory.dmp
memory/4988-1-0x0000000000DB0000-0x0000000000DBE000-memory.dmp
memory/4988-2-0x00007FFC7F7E0000-0x00007FFC802A1000-memory.dmp
memory/1988-8-0x0000011EABB60000-0x0000011EABB82000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_biogjjhu.xte.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/4988-15-0x00007FFC7F7E3000-0x00007FFC7F7E5000-memory.dmp
memory/4988-16-0x00007FFC7F7E0000-0x00007FFC802A1000-memory.dmp