Analysis Overview
SHA256
d8977b1135e6261bc2d80bf5cd5c11dcb6573b071675288444da47462eb8f799
Threat Level: Known bad
The file config.exe was found to be: Known bad.
Malicious Activity Summary
Silverrat family
SilverRat
Sets file to hidden
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Legitimate hosting services abused for malware hosting/C2
Command and Scripting Interpreter: PowerShell
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Delays execution with timeout.exe
Suspicious use of FindShellTrayWindow
Opens file in notepad (likely ransom note)
Modifies registry class
Uses Task Scheduler COM API
Suspicious use of SetWindowsHookEx
Views/modifies file attributes
Checks SCSI registry key(s)
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Scheduled Task/Job: Scheduled Task
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-02-20 23:18
Signatures
Silverrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-02-20 23:18
Reported
2025-02-20 23:20
Platform
win7-20240903-en
Max time kernel
53s
Max time network
56s
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\discord\$77discord.exe.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\cmd.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\\discord\\$77discord.exe.exe\"" | C:\Users\Admin\AppData\Local\Temp\config.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 | pastebin.com | N/A | N/A |
| N/A | pastebin.com | N/A | 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 |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| 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\config.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\config.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\config.exe | N/A |
| N/A | N/A | C:\Users\Admin\discord\$77discord.exe.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\config.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\discord\$77discord.exe.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\discord\$77discord.exe.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler 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\config.exe
"C:\Users\Admin\AppData\Local\Temp\config.exe"
C:\Windows\System32\attrib.exe
"C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\discord"
C:\Windows\System32\attrib.exe
"C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\discord\$77discord.exe.exe"
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpBDA4.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\discord\$77discord.exe.exe
"C:\Users\Admin\discord\$77discord.exe.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 "discord.exe_Task-DAILY-21PM" /TR "%MyFile%" /ST 21:00
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 104.20.4.235:443 | pastebin.com | tcp |
| US | 8.8.8.8:53 | AK4-53145.portmap.host | udp |
| DE | 193.161.193.99:53145 | AK4-53145.portmap.host | tcp |
| DE | 193.161.193.99:53145 | AK4-53145.portmap.host | tcp |
Files
memory/2728-0-0x000007FEF4E83000-0x000007FEF4E84000-memory.dmp
memory/2728-1-0x000000013F550000-0x000000013F55E000-memory.dmp
memory/2728-2-0x000007FEF4E80000-0x000007FEF586C000-memory.dmp
memory/2728-3-0x000007FEF4E83000-0x000007FEF4E84000-memory.dmp
memory/2728-4-0x000007FEF4E80000-0x000007FEF586C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpBDA4.tmp.bat
| MD5 | db404829663550224d6f01767d7d730c |
| SHA1 | c407135c41ef14208e01c8b892d6589ad8fa85e5 |
| SHA256 | fd3ee5096613881d4cdc2ac49614e72654c2e232019b075061aba19d259768ec |
| SHA512 | 74be548b4b74a77abc03d47f5c42b4bd59e450afd56597742d54a28b9261f700701e0e9c031d9ba7ce6aaccb258a70a2c3cb4c7e8d1d617c420021762530e3d0 |
memory/2728-14-0x000007FEF4E80000-0x000007FEF586C000-memory.dmp
\Users\Admin\discord\$77discord.exe.exe
| MD5 | f04fdc29810e2b16364d85fdd50aa425 |
| SHA1 | eb097566fec9bd89079240fba838c4f64bbcc757 |
| SHA256 | d8977b1135e6261bc2d80bf5cd5c11dcb6573b071675288444da47462eb8f799 |
| SHA512 | 296de0e37e184e0d77df2d868d1dba7725013244f12e437b1d75d3427ea128ab0c5b300ef416006692ec9642f3fde9084d46744890fd595f64b8fba0c43c4b8b |
memory/864-19-0x000000013F440000-0x000000013F44E000-memory.dmp
memory/2120-24-0x000000001B590000-0x000000001B872000-memory.dmp
memory/2120-25-0x0000000002790000-0x0000000002798000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-02-20 23:18
Reported
2025-02-20 23:20
Platform
win10v2004-20250217-en
Max time kernel
57s
Max time network
52s
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1294999112-580688058-1763548717-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\config.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1294999112-580688058-1763548717-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\discord\$77discord.exe.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\discord\$77discord.exe.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| N/A | N/A | C:\Windows\system32\taskmgr.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\\discord\\$77discord.exe.exe\"" | C:\Users\Admin\AppData\Local\Temp\config.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 | pastebin.com | N/A | N/A |
| N/A | pastebin.com | N/A | N/A |
Enumerates physical storage devices
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000 | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A | C:\Windows\system32\taskmgr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName | C:\Windows\system32\taskmgr.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-1294999112-580688058-1763548717-1000_Classes\Local Settings | C:\Windows\system32\taskmgr.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1294999112-580688058-1763548717-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell | C:\Windows\system32\taskmgr.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1294999112-580688058-1763548717-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU | C:\Windows\system32\taskmgr.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1294999112-580688058-1763548717-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 | C:\Windows\system32\taskmgr.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1294999112-580688058-1763548717-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 | C:\Windows\system32\taskmgr.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1294999112-580688058-1763548717-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff | C:\Windows\system32\taskmgr.exe | N/A |
Opens file in notepad (likely ransom note)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\NOTEPAD.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 use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\config.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeCreateGlobalPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\discord\$77discord.exe.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\discord\$77discord.exe.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler 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\config.exe
"C:\Users\Admin\AppData\Local\Temp\config.exe"
C:\Windows\System32\attrib.exe
"C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\discord"
C:\Windows\System32\attrib.exe
"C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\discord\$77discord.exe.exe"
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\chrome_installer.log
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2778.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\discord\$77discord.exe.exe
"C:\Users\Admin\discord\$77discord.exe.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 "discord.exe_Task-DAILY-21PM" /TR "%MyFile%" /ST 21:00
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| GB | 2.18.27.76:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 172.67.19.24:443 | pastebin.com | tcp |
| US | 8.8.8.8:53 | AK4-53145.portmap.host | udp |
| DE | 193.161.193.99:53145 | AK4-53145.portmap.host | tcp |
| DE | 193.161.193.99:53145 | AK4-53145.portmap.host | tcp |
Files
memory/1704-0-0x00007FF974523000-0x00007FF974525000-memory.dmp
memory/1704-1-0x0000000000840000-0x000000000084E000-memory.dmp
memory/1704-2-0x00007FF974520000-0x00007FF974FE1000-memory.dmp
memory/4916-3-0x0000025BB9A80000-0x0000025BB9A81000-memory.dmp
memory/4916-4-0x0000025BB9A80000-0x0000025BB9A81000-memory.dmp
memory/4916-5-0x0000025BB9A80000-0x0000025BB9A81000-memory.dmp
memory/4916-13-0x0000025BB9A80000-0x0000025BB9A81000-memory.dmp
memory/4916-15-0x0000025BB9A80000-0x0000025BB9A81000-memory.dmp
memory/4916-14-0x0000025BB9A80000-0x0000025BB9A81000-memory.dmp
memory/4916-12-0x0000025BB9A80000-0x0000025BB9A81000-memory.dmp
memory/4916-10-0x0000025BB9A80000-0x0000025BB9A81000-memory.dmp
memory/4916-11-0x0000025BB9A80000-0x0000025BB9A81000-memory.dmp
memory/4916-9-0x0000025BB9A80000-0x0000025BB9A81000-memory.dmp
memory/1704-16-0x00007FF974523000-0x00007FF974525000-memory.dmp
memory/1704-17-0x00007FF974520000-0x00007FF974FE1000-memory.dmp
memory/1704-22-0x00007FF974520000-0x00007FF974FE1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp2778.tmp.bat
| MD5 | a2053b81337e5ee8d01886b2556f2565 |
| SHA1 | f535e37eb0060f4fbfe3a4359b0fd6200bbb7885 |
| SHA256 | 8babc46964bed797b15dccbc067f038812d333fb1cf4a35bcd350434baa00334 |
| SHA512 | 54ba781dc7c9839b139ebf6c43aec361bfc876c79d9adf6d5e97c3f9b44720f142ae9a38092846e1c96a4a209180353c16ed598e0978b31c73b23fbe7eb8d959 |
C:\Users\Admin\discord\$77discord.exe.exe
| MD5 | f04fdc29810e2b16364d85fdd50aa425 |
| SHA1 | eb097566fec9bd89079240fba838c4f64bbcc757 |
| SHA256 | d8977b1135e6261bc2d80bf5cd5c11dcb6573b071675288444da47462eb8f799 |
| SHA512 | 296de0e37e184e0d77df2d868d1dba7725013244f12e437b1d75d3427ea128ab0c5b300ef416006692ec9642f3fde9084d46744890fd595f64b8fba0c43c4b8b |
memory/4404-31-0x00000169A2760000-0x00000169A2782000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5qqkrxbw.23t.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |