Analysis Overview
SHA256
d4150267caf26aadec004b322be81e568d4e6c1793a5a490eee82326c20ca5fe
Threat Level: Known bad
The file Rat.cmd was found to be: Known bad.
Malicious Activity Summary
Silverrat family
SilverRat
Downloads MZ/PE file
Sets file to hidden
Checks computer location settings
Adds Run key to start application
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Views/modifies file attributes
Delays execution with timeout.exe
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-02-13 22:22
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 22:22
Reported
2025-02-13 22:24
Platform
win7-20241010-en
Max time kernel
37s
Max time network
19s
Command Line
Signatures
SilverRat
Silverrat family
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 |
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.cmd\"" | C:\Users\Admin\AppData\Local\Temp\Rat.exe | N/A |
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Rat.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 |
Suspicious use of WriteProcessMemory
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.cmd"
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpF68F.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.cmd"
Network
Files
memory/2600-0-0x000007FEF6253000-0x000007FEF6254000-memory.dmp
memory/2600-1-0x0000000000160000-0x0000000000172000-memory.dmp
memory/2600-2-0x000007FEF6250000-0x000007FEF6C3C000-memory.dmp
memory/2600-3-0x000007FEF6253000-0x000007FEF6254000-memory.dmp
memory/2600-4-0x000007FEF6250000-0x000007FEF6C3C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpF68F.tmp.bat
| MD5 | d93a0348edc343cbd060387bf78aad63 |
| SHA1 | cd1904f5d8735cdb4dea5d0edc828675bf9e635b |
| SHA256 | de7efa32cbd56ba9def0ca16407aa591e91d033f80072d887291c89b38eb30a8 |
| SHA512 | 6cefcdd9abdf2461b044fc43ae1584bca8fc117e551104c8ab2d73a94b0fd258d575df4ac65b679ac5878c03f3144aca226d266a99abfbf74e3157dc145c46e4 |
memory/2600-14-0x000007FEF6250000-0x000007FEF6C3C000-memory.dmp
C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.cmd
| MD5 | 87c5cb6446b50bffabd5d4f45b823ae2 |
| SHA1 | 967f577daf5906008e4d2a511306d9d0ebc8f9c5 |
| SHA256 | d4150267caf26aadec004b322be81e568d4e6c1793a5a490eee82326c20ca5fe |
| SHA512 | 691bd612a79ac1e65c5ca8d4e5448b9438115de30875db0e980dba647ff67936c56df28ebc361139aa376eecfacfe1badbe08389aae874aeab6f77037d66208f |
Analysis: behavioral2
Detonation Overview
Submitted
2025-02-13 22:22
Reported
2025-02-13 22:24
Platform
win10v2004-20250211-en
Max time kernel
149s
Max time network
153s
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-1-5-21-2508704002-2325818048-3575902788-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Rat.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.cmd\"" | C:\Users\Admin\AppData\Local\Temp\Rat.exe | 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 |
Suspicious behavior: EnumeratesProcesses
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: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
Suspicious use of WriteProcessMemory
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.cmd"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp36BB.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.cmd"
C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x470 0x4c8
C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIyIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMyMzYiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDI1MTE0ODAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NDMzMDMxNDM4Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
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 | 2.18.66.114:443 | 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 | 199.232.214.172:80 | msedge.b.tlu.dl.delivery.mp.microsoft.com | tcp |
Files
memory/1528-0-0x00007FFE1F2F3000-0x00007FFE1F2F5000-memory.dmp
memory/1528-1-0x0000000000B60000-0x0000000000B72000-memory.dmp
memory/1528-2-0x00007FFE1F2F0000-0x00007FFE1FDB1000-memory.dmp
memory/1528-3-0x00007FFE1F2F3000-0x00007FFE1F2F5000-memory.dmp
memory/1528-4-0x00007FFE1F2F0000-0x00007FFE1FDB1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp36BB.tmp.bat
| MD5 | dcf3cb813d0b68b72b84c632524bbdbe |
| SHA1 | 5402eb2a8faefd8ec1a0cef7b7e3cb392f9a9db0 |
| SHA256 | a8a5436c1e1a72fcc4d39c300d1823c5d1c096f8994e362ad2c7c980a91f4622 |
| SHA512 | 7ed1a9e4247da7503b29e16b3317a38aa11b847ee21acb17935036d6ccf141d091bbd06b2f00443de7be175d94ede492d33a4dab5b3b9757453d1965208960f2 |
memory/1528-10-0x00007FFE1F2F0000-0x00007FFE1FDB1000-memory.dmp
C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.cmd
| MD5 | 87c5cb6446b50bffabd5d4f45b823ae2 |
| SHA1 | 967f577daf5906008e4d2a511306d9d0ebc8f9c5 |
| SHA256 | d4150267caf26aadec004b322be81e568d4e6c1793a5a490eee82326c20ca5fe |
| SHA512 | 691bd612a79ac1e65c5ca8d4e5448b9438115de30875db0e980dba647ff67936c56df28ebc361139aa376eecfacfe1badbe08389aae874aeab6f77037d66208f |