Analysis Overview
SHA256
a2376ab8bc769725b2d76989eb0e077ae646d32fc712e5c06abba09f13150ac3
Threat Level: Shows suspicious behavior
The file 1a5fed9db7e0a89129bc97035042a833_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
VMProtect packed file
Unsigned PE
Suspicious use of WriteProcessMemory
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-06-28 13:54
Signatures
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-28 13:54
Reported
2024-06-28 13:55
Platform
win7-20240221-en
Max time kernel
32s
Max time network
33s
Command Line
Signatures
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\SysWOW64\shutdown.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\SysWOW64\shutdown.exe | N/A |
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a5fed9db7e0a89129bc97035042a833_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a5fed9db7e0a89129bc97035042a833_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\shutdown.exe
shutdown -r
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
Network
Files
memory/2188-2-0x0000000010000000-0x0000000010275000-memory.dmp
memory/2188-3-0x0000000010000000-0x0000000010275000-memory.dmp
memory/2188-4-0x0000000010000000-0x0000000010275000-memory.dmp
memory/2188-1-0x0000000010000000-0x0000000010275000-memory.dmp
memory/2188-0-0x0000000010000000-0x0000000010275000-memory.dmp
memory/2188-8-0x0000000010000000-0x0000000010275000-memory.dmp
memory/2556-9-0x0000000002E10000-0x0000000002E11000-memory.dmp
memory/2100-10-0x0000000002AB0000-0x0000000002AB1000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-28 13:54
Reported
2024-06-28 13:55
Platform
win10v2004-20240508-en
Max time kernel
32s
Max time network
34s
Command Line
Signatures
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| 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\Themes\History | 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\EnableWindowColorization = "237" | 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\Explorer\Accent | 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\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" | 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\ColorizationAfterglowBalance = "10" | 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 |
| 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\DWM\ColorizationColor = "3288365271" | 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\AccentColor = "4292311040" | C:\Windows\system32\LogonUI.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Token: 33 | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\SysWOW64\shutdown.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\SysWOW64\shutdown.exe | N/A |
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1532 wrote to memory of 4048 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1532 wrote to memory of 4048 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1532 wrote to memory of 4048 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4048 wrote to memory of 1836 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\shutdown.exe |
| PID 4048 wrote to memory of 1836 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\shutdown.exe |
| PID 4048 wrote to memory of 1836 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\shutdown.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a5fed9db7e0a89129bc97035042a833_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a5fed9db7e0a89129bc97035042a833_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\shutdown.exe
shutdown -r
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39d1055 /state1:0x41c64e6d
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp |
Files
memory/4048-0-0x0000000010000000-0x0000000010275000-memory.dmp
memory/4048-1-0x0000000010000000-0x0000000010275000-memory.dmp
memory/4048-5-0x0000000010000000-0x0000000010275000-memory.dmp