Analysis Overview
SHA256
00b67c86ca4b05702c7bb0369bf51ce8df3f3ed444ba41b4870c61496ac0bc9a
Threat Level: Likely malicious
The file c07a3945ff704403d394bcfb82299ebe_JaffaCakes118 was found to be: Likely malicious.
Malicious Activity Summary
Event Triggered Execution: AppInit DLLs
Drops file in System32 directory
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Modifies data under HKEY_USERS
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-25 09:50
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-25 09:50
Reported
2024-08-25 09:51
Platform
win7-20240729-en
Max time kernel
2s
Max time network
2s
Command Line
Signatures
Event Triggered Execution: AppInit DLLs
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\kwkfyah.dll | C:\Users\Admin\AppData\Local\Temp\c07a3945ff704403d394bcfb82299ebe_JaffaCakes118.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\c07a3945ff704403d394bcfb82299ebe_JaffaCakes118.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeShutdownPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\c07a3945ff704403d394bcfb82299ebe_JaffaCakes118.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\c07a3945ff704403d394bcfb82299ebe_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c07a3945ff704403d394bcfb82299ebe_JaffaCakes118.exe"
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
Network
Files
memory/2848-7-0x0000000002AB0000-0x0000000002AB1000-memory.dmp
memory/2776-6-0x0000000002E10000-0x0000000002E11000-memory.dmp
memory/2128-3-0x0000000001000000-0x0000000001019000-memory.dmp
memory/2128-2-0x0000000001000000-0x0000000001019000-memory.dmp
memory/2128-1-0x0000000001000000-0x0000000001019000-memory.dmp
memory/2128-0-0x0000000001001000-0x0000000001002000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-25 09:50
Reported
2024-08-25 09:51
Platform
win10v2004-20240802-en
Max time kernel
2s
Max time network
8s
Command Line
Signatures
Event Triggered Execution: AppInit DLLs
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\ynyrubj.dll | C:\Users\Admin\AppData\Local\Temp\c07a3945ff704403d394bcfb82299ebe_JaffaCakes118.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\c07a3945ff704403d394bcfb82299ebe_JaffaCakes118.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" | 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\ColorizationBlurBalance = "1" | 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 |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" | 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\EnableWindowColorization = "66" | 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\CurrentVersion\Themes\History | 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 = "4288567808" | 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 (data) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 | C:\Windows\system32\LogonUI.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeShutdownPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\c07a3945ff704403d394bcfb82299ebe_JaffaCakes118.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\c07a3945ff704403d394bcfb82299ebe_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c07a3945ff704403d394bcfb82299ebe_JaffaCakes118.exe"
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3977055 /state1:0x41c64e6d
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 | 241.150.49.20.in-addr.arpa | udp |
Files
memory/4820-0-0x0000000001001000-0x0000000001002000-memory.dmp
memory/4820-1-0x0000000001000000-0x0000000001019000-memory.dmp
memory/4820-2-0x0000000001000000-0x0000000001019000-memory.dmp
memory/4820-3-0x0000000001000000-0x0000000001019000-memory.dmp