Analysis Overview
SHA256
166fc117f762f70928200d37c24352583e1aca1aba54429975ac828452cf5ff0
Threat Level: Known bad
The file Rat.exe was found to be: Known bad.
Malicious Activity Summary
SilverRat
Silverrat family
Downloads MZ/PE file
Sets file to hidden
Executes dropped EXE
Checks computer location settings
Legitimate hosting services abused for malware hosting/C2
Adds Run key to start application
Command and Scripting Interpreter: PowerShell
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
Uses Volume Shadow Copy service COM API
Suspicious use of AdjustPrivilegeToken
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Uses Task Scheduler COM API
Suspicious behavior: GetForegroundWindowSpam
Views/modifies file attributes
Suspicious use of WriteProcessMemory
Scheduled Task/Job: Scheduled Task
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-02-13 22:45
Signatures
Silverrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-02-13 22:45
Reported
2025-02-13 23:03
Platform
win10v2004-20250207-en
Max time kernel
482s
Max time network
1050s
Command Line
Signatures
SilverRat
Silverrat family
Downloads MZ/PE file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\attrib.exe | N/A |
| N/A | N/A | C:\Windows\System32\attrib.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-189444705-1272902858-1305688695-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Rat.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-189444705-1272902858-1305688695-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\zt-WD\\$77Windows Security Process.exe\"" | C:\Users\Admin\AppData\Local\Temp\Rat.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 |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | discord.com | N/A | N/A |
| N/A | discord.com | N/A | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe | N/A |
System Network Configuration Discovery: Internet Connection Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeBackupPrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeAuditPrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Rat.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.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\Roaming\zt-WD\$77Windows Security Process.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\attrib.exe | N/A |
| N/A | N/A | C:\Windows\System32\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\Rat.exe
"C:\Users\Admin\AppData\Local\Temp\Rat.exe"
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
C:\Windows\System32\attrib.exe
"C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\AppData\Roaming\zt-WD"
C:\Windows\System32\attrib.exe
"C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.exe"
C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI2IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MDQ5NDI4OTEwIi8-PC9hcHA-PC9yZXF1ZXN0Pg
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2EFA.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.exe
"C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks.exe" /query /TN $77Windows Security Process.exe
C:\Windows\SYSTEM32\schtasks.exe
"schtasks.exe" /Create /SC ONCE /TN "$77Windows Security Process.exe" /TR "C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.exe \"\$77Windows Security Process.exe\" /AsAdmin" /ST 00:01 /IT /F /RL HIGHEST
C:\Windows\SYSTEM32\schtasks.exe
"schtasks.exe" /query /TN $77Windows Security Process.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
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.28.10:443 | g.bing.com | tcp |
| GB | 2.18.66.106:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | msedge.api.cdp.microsoft.com | udp |
| US | 52.252.28.242:443 | msedge.api.cdp.microsoft.com | tcp |
| US | 8.8.8.8:53 | msedge.b.tlu.dl.delivery.mp.microsoft.com | udp |
| US | 199.232.210.172:80 | msedge.b.tlu.dl.delivery.mp.microsoft.com | tcp |
| US | 8.8.8.8:53 | discord.com | udp |
| US | 162.159.128.233:443 | discord.com | tcp |
| US | 8.8.8.8:53 | buying-magic.gl.at.ply.gg | udp |
| US | 147.185.221.25:17699 | buying-magic.gl.at.ply.gg | tcp |
Files
memory/4704-0-0x00007FF8AC0D3000-0x00007FF8AC0D5000-memory.dmp
memory/4704-1-0x00000000003C0000-0x00000000003D0000-memory.dmp
memory/4704-2-0x00007FF8AC0D0000-0x00007FF8ACB91000-memory.dmp
memory/4704-3-0x00007FF8AC0D3000-0x00007FF8AC0D5000-memory.dmp
memory/4704-4-0x00007FF8AC0D0000-0x00007FF8ACB91000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp2EFA.tmp.bat
| MD5 | 6cbd836cefc9ca0be275ae1498f34a1f |
| SHA1 | 27cf036392475853132785f04db09a3f41ef3571 |
| SHA256 | e0f8dcdf6b63a3159c96c9295d5b796524c841def769c3ebb7103df50cd5ac6f |
| SHA512 | 687b8831b75ed7cc1c97a8a9201be46f0579053d9c3038dea6cb8a9e275828d5c801b5898d0064c34a40d2a316db82d26baa2c43818e6fb31df73d37f08abe4d |
memory/4704-11-0x00007FF8AC0D0000-0x00007FF8ACB91000-memory.dmp
C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.exe
| MD5 | c41469be0e653ddb4552a3f1a16caba6 |
| SHA1 | d2e0c8d5bd49337b5cef1f325632ba6c356d5661 |
| SHA256 | 166fc117f762f70928200d37c24352583e1aca1aba54429975ac828452cf5ff0 |
| SHA512 | 0599b00efc97b7805679040903e9b5f7fdfa7c4e00e7b12fc0a79b89286dea6665efd87f817b9b9f8e2e165714df07e8dbe21b3121b0af3f6f3c87b10837c749 |
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5voyrfyx.3mt.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/2140-24-0x000001C97B270000-0x000001C97B292000-memory.dmp