Analysis Overview
SHA256
47b4d5846a6c1f0f3e9f768f77812e43a4141762bd696aae3c607c98505754b4
Threat Level: Known bad
The file Rat.cmd was found to be: Known bad.
Malicious Activity Summary
Silverrat family
SilverRat
Sets file to hidden
Downloads MZ/PE file
Checks computer location settings
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Uses Volume Shadow Copy service COM API
Suspicious behavior: EnumeratesProcesses
Delays execution with timeout.exe
Views/modifies file attributes
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-02-13 23:02
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 23:02
Reported
2025-02-13 23:04
Platform
win7-20241010-en
Max time kernel
120s
Max time network
122s
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 |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Rat.exe | N/A |
| 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\tmp19A8.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/1624-0-0x000007FEF5AB3000-0x000007FEF5AB4000-memory.dmp
memory/1624-1-0x0000000000C20000-0x0000000000C32000-memory.dmp
memory/1624-2-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp
memory/1624-3-0x000007FEF5AB3000-0x000007FEF5AB4000-memory.dmp
memory/1624-4-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp19A8.tmp.bat
| MD5 | 1a27728f96418ea36b3b1e59f614b46a |
| SHA1 | 0aa70aa1018c9612315d69e49be252341a52a725 |
| SHA256 | 96eefa27a8acd1c5411f6589d7c6feafa351ac70d09f3d8c1736a6d6ef2f8454 |
| SHA512 | e89b0b75b8feb25b855730c61835f222021bee09582d8342ad7f8dc3907f99e7bfcb4066f01a95b47ccbd796b6bde45655457cfcc5b0d699d6aec47cae12672b |
memory/1624-14-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp
C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.cmd
| MD5 | ed4f6318bf888ff72c0bae8bf85581ca |
| SHA1 | 4ec21563af9c278b8bb7626a967894cba16db268 |
| SHA256 | 47b4d5846a6c1f0f3e9f768f77812e43a4141762bd696aae3c607c98505754b4 |
| SHA512 | af021e7f2d76182bacd6d99448a6f02d5a60567af0925f2a7311b640fe922d88088f4d2368011fd320c41cf7baa77d8c504e9faf28bfdddd460769e74b52054b |
Analysis: behavioral2
Detonation Overview
Submitted
2025-02-13 23:02
Reported
2025-02-13 23:04
Platform
win10v2004-20250207-en
Max time kernel
94s
Max time network
150s
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 |
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\tmpFBC5.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 0x394 0x2ec
C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI2IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjA4NjU5NDQ2Ii8-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 | 2.18.66.129:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | msedge.api.cdp.microsoft.com | udp |
| NL | 4.175.87.113:443 | 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 |
Files
memory/4224-1-0x0000000000C10000-0x0000000000C22000-memory.dmp
memory/4224-0-0x00007FF80C273000-0x00007FF80C275000-memory.dmp
memory/4224-2-0x00007FF80C270000-0x00007FF80CD31000-memory.dmp
memory/4224-3-0x00007FF80C273000-0x00007FF80C275000-memory.dmp
memory/4224-4-0x00007FF80C270000-0x00007FF80CD31000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpFBC5.tmp.bat
| MD5 | 4ec0f72855751cb8f9ed9a75202a0321 |
| SHA1 | df79ed8f57ad4732906b89b62a3369f257a7be8c |
| SHA256 | 147327157f7279f8d101645c9491cbb4ebd9bf663f5b46b2c8e3729da1811353 |
| SHA512 | 5975c5591d38ff284afad3b2d789223dfa675a08d94bde42be40ee4671ed98a9d87d544f52a2d2f3ba2b0a91894e45f6416927fe370a137c05f231aab74a608b |
memory/4224-10-0x00007FF80C270000-0x00007FF80CD31000-memory.dmp
C:\Users\Admin\AppData\Roaming\zt-WD\$77Windows Security Process.cmd
| MD5 | ed4f6318bf888ff72c0bae8bf85581ca |
| SHA1 | 4ec21563af9c278b8bb7626a967894cba16db268 |
| SHA256 | 47b4d5846a6c1f0f3e9f768f77812e43a4141762bd696aae3c607c98505754b4 |
| SHA512 | af021e7f2d76182bacd6d99448a6f02d5a60567af0925f2a7311b640fe922d88088f4d2368011fd320c41cf7baa77d8c504e9faf28bfdddd460769e74b52054b |