Analysis Overview
SHA256
8b9f7a10b753f412b15ddf92cbc58e3b3ef6b8adcb10bd56c2596d284af3db57
Threat Level: Known bad
The file free fud crypter.exe was found to be: Known bad.
Malicious Activity Summary
Nanocore family
NanoCore
Adds Run key to start application
Checks whether UAC is enabled
Drops file in Program Files directory
System Location Discovery: System Language Discovery
Unsigned PE
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-05 17:52
Signatures
Nanocore family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-05 17:52
Reported
2024-08-05 17:55
Platform
win11-20240802-en
Max time kernel
11s
Max time network
14s
Command Line
Signatures
NanoCore
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Service = "C:\\Program Files (x86)\\DDP Service\\ddpsv.exe" | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\DDP Service\ddpsv.exe | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
| File opened for modification | C:\Program Files (x86)\DDP Service\ddpsv.exe | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365268" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "64" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = 99ebff004cc2ff000091f8000078d4000067c000003e9200001a6800f7630c00 | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" | C:\Windows\system32\LogonUI.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365268" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292114432" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4290799360" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292114432" | C:\Windows\system32\LogonUI.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent | C:\Windows\system32\LogonUI.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\LogonUI.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe
"C:\Users\Admin\AppData\Local\Temp\free fud crypter.exe"
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a13855 /state1:0x41c64e6d
Network
| Country | Destination | Domain | Proto |
| DE | 62.143.14.73:54984 | tcp | |
| US | 8.8.8.8:53 | 73.14.143.62.in-addr.arpa | udp |
Files
memory/2608-0-0x0000000074961000-0x0000000074962000-memory.dmp
memory/2608-1-0x0000000074960000-0x0000000074F11000-memory.dmp
memory/2608-2-0x0000000074960000-0x0000000074F11000-memory.dmp
memory/2608-4-0x0000000074960000-0x0000000074F11000-memory.dmp
C:\Users\Admin\AppData\Roaming\C9038F8C-1E1B-4144-A72A-756D47BBFF27\settings.bin
| MD5 | ae0f5e6ce7122af264ec533c6b15a27b |
| SHA1 | 1265a495c42eed76cc043d50c60c23297e76cce1 |
| SHA256 | 73b0b92179c61c26589b47e9732ce418b07edee3860ee5a2a5fb06f3b8aa9b26 |
| SHA512 | dd44c2d24d4e3a0f0b988ad3d04683b5cb128298043134649bbe33b2512ce0c9b1a8e7d893b9f66fbbcdd901e2b0646c4533fb6c0c8c4afcb95a0efb95d446f8 |
memory/2608-14-0x0000000074960000-0x0000000074F11000-memory.dmp