Analysis Overview
SHA256
f19d07fbccb4bbf733cc55c967097e5cef053cd0c9188c10a5f138ea92929cb0
Threat Level: Known bad
The file 12ab006815614f2ad93358a7a03f7441_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Disables Task Manager via registry modification
Impair Defenses: Safe Mode Boot
Checks computer location settings
UPX packed file
Enumerates physical storage devices
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Kills process with taskkill
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-26 16:37
Signatures
UPX 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
2024-06-26 16:37
Reported
2024-06-26 16:40
Platform
win7-20240611-en
Max time kernel
141s
Max time network
126s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe\"" | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | N/A |
Disables Task Manager via registry modification
Impair Defenses: Safe Mode Boot
| Description | Indicator | Process | Target |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Power | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\WinDefend | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\ProfSvc | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | N/A |
UPX 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 |
Enumerates physical storage devices
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2208 wrote to memory of 2360 | N/A | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2208 wrote to memory of 2360 | N/A | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2208 wrote to memory of 2360 | N/A | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2208 wrote to memory of 2360 | N/A | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe"
C:\Windows\SysWOW64\taskkill.exe
"C:\Windows\System32\taskkill.exe" /f /im explorer.exe
Network
Files
memory/2208-1-0x0000000000220000-0x0000000000222000-memory.dmp
memory/2208-2-0x0000000000400000-0x000000000045C000-memory.dmp
memory/2208-0-0x0000000000400000-0x000000000045C000-memory.dmp
memory/2208-3-0x0000000000400000-0x000000000045C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-26 16:37
Reported
2024-06-26 16:40
Platform
win10v2004-20240508-en
Max time kernel
140s
Max time network
123s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe\"" | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | N/A |
Disables Task Manager via registry modification
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | N/A |
Impair Defenses: Safe Mode Boot
| Description | Indicator | Process | Target |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\iai2c.sys | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\CBDHSvc | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\UserManager | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\SerCx2.sys | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\ProfSvc | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Power | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | N/A |
UPX 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 |
Enumerates physical storage devices
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4988 wrote to memory of 2580 | N/A | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4988 wrote to memory of 2580 | N/A | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4988 wrote to memory of 2580 | N/A | C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\12ab006815614f2ad93358a7a03f7441_JaffaCakes118.exe"
C:\Windows\SysWOW64\taskkill.exe
"C:\Windows\System32\taskkill.exe" /f /im explorer.exe
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 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.251.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 101.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
Files
memory/4988-0-0x0000000000400000-0x000000000045C000-memory.dmp
memory/4988-1-0x00000000005B0000-0x00000000005B2000-memory.dmp
memory/4988-2-0x0000000000400000-0x000000000045C000-memory.dmp
memory/4988-3-0x0000000000400000-0x000000000045C000-memory.dmp