Analysis Overview
SHA256
bce721a6081d418d0e00bce7dfb5a6b957767b0138690f7e5d642181556b8296
Threat Level: Known bad
The file Clutt6.6.6.exe was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Possible privilege escalation attempt
Disables Task Manager via registry modification
Disables RegEdit via registry modification
Checks computer location settings
Modifies file permissions
Writes to the Master Boot Record (MBR)
Drops file in Program Files directory
Enumerates physical storage devices
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-29 15:18
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-29 15:18
Reported
2024-05-29 15:21
Platform
win7-20231129-en
Max time kernel
150s
Max time network
120s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "satan" | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
Disables Task Manager via registry modification
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files\Temp\plg.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\mirror_snd.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\crossHD_small.ico | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\tunnel.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\crossHD_medium.ico | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\wind_short.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\rainbow_snd.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\static_color.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\stretch.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\wind_edit.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\wind_snd.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\clutterus_ico.ico | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\invert_snd.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\takeown.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe
"C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32 && icacls C:\Windows\System32 /grant "%username%:F" && takeown /f C:\Windows\System32\drivers && icacls C:\Windows\System32\drivers /grant "%username%:F" && takeown /f C:\Windows\System32\Boot && icacls C:\Windows\System32\Boot /grant "%username%:F" && exit
C:\Windows\system32\takeown.exe
takeown /f C:\Windows\System32
C:\Windows\system32\icacls.exe
icacls C:\Windows\System32 /grant "Admin:F"
C:\Windows\system32\takeown.exe
takeown /f C:\Windows\System32\drivers
C:\Windows\system32\icacls.exe
icacls C:\Windows\System32\drivers /grant "Admin:F"
C:\Windows\system32\takeown.exe
takeown /f C:\Windows\System32\Boot
C:\Windows\system32\icacls.exe
icacls C:\Windows\System32\Boot /grant "Admin:F"
C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T
Network
Files
memory/2060-0-0x000007FEF56E3000-0x000007FEF56E4000-memory.dmp
memory/2060-1-0x00000000001A0000-0x0000000000630000-memory.dmp
memory/2060-2-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2060-3-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2060-4-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2060-18-0x000007FEF56E3000-0x000007FEF56E4000-memory.dmp
memory/2060-19-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2060-23-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2060-24-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-29 15:18
Reported
2024-05-29 15:21
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
134s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "satan" | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
Disables Task Manager via registry modification
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files\Temp\crossHD_medium.ico | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\stretch.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\clutterus_ico.ico | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\invert_snd.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\static_color.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\crossHD_small.ico | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\mirror_snd.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\plg.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\rainbow_snd.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\wind_edit.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\wind_snd.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\tunnel.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| File opened for modification | C:\Program Files\Temp\wind_short.wav | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\takeown.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
Processes
C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe
"C:\Users\Admin\AppData\Local\Temp\Clutt6.6.6.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32 && icacls C:\Windows\System32 /grant "%username%:F" && takeown /f C:\Windows\System32\drivers && icacls C:\Windows\System32\drivers /grant "%username%:F" && takeown /f C:\Windows\System32\Boot && icacls C:\Windows\System32\Boot /grant "%username%:F" && exit
C:\Windows\system32\takeown.exe
takeown /f C:\Windows\System32
C:\Windows\system32\icacls.exe
icacls C:\Windows\System32 /grant "Admin:F"
C:\Windows\system32\takeown.exe
takeown /f C:\Windows\System32\drivers
C:\Windows\system32\icacls.exe
icacls C:\Windows\System32\drivers /grant "Admin:F"
C:\Windows\system32\takeown.exe
takeown /f C:\Windows\System32\Boot
C:\Windows\system32\icacls.exe
icacls C:\Windows\System32\Boot /grant "Admin:F"
C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x324 0x4ec
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.244.122.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.251.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 203.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
Files
memory/3524-0-0x00007FFA2B193000-0x00007FFA2B195000-memory.dmp
memory/3524-1-0x0000000000040000-0x00000000004D0000-memory.dmp
memory/3524-2-0x00007FFA2B190000-0x00007FFA2BC51000-memory.dmp
memory/3524-19-0x00007FFA2B193000-0x00007FFA2B195000-memory.dmp
memory/3524-20-0x00007FFA2B190000-0x00007FFA2BC51000-memory.dmp