d2a948830bc68f57b96a1d379b739d166c511d7bd41ea8b284180eb639519e7b

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-14699\\brenasa.exe"	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2696	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe

Loads dropped DLL 1 IoCs

pid	Process
2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\tbrena = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-14699\\brenasa.exe"	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File created	C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-14699\Desktop.ini	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-14699\\brenasa.exe"	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2364 set thread context of 2696	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	32

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2696	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 1780	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	30
PID 2364 wrote to memory of 1780	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	30
PID 2364 wrote to memory of 1780	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	30
PID 2364 wrote to memory of 1780	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	30
PID 2364 wrote to memory of 2368	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	31
PID 2364 wrote to memory of 2368	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	31
PID 2364 wrote to memory of 2368	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	31
PID 2364 wrote to memory of 2368	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	31
PID 2364 wrote to memory of 2696	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	32
PID 2364 wrote to memory of 2696	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	32
PID 2364 wrote to memory of 2696	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	32
PID 2364 wrote to memory of 2696	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	32
PID 2364 wrote to memory of 2696	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	32
PID 2364 wrote to memory of 2696	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	32
PID 2364 wrote to memory of 2696	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	32
PID 2364 wrote to memory of 2696	2364	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	32
PID 2696 wrote to memory of 1196	2696	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	21
PID 2696 wrote to memory of 1196	2696	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	21
PID 2696 wrote to memory of 1196	2696	42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1196
- C:\Users\Admin\AppData\Local\Temp\42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Users\Admin\AppData\Local\Temp\42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe"
    3⤵
    PID:1780
- - C:\Users\Admin\AppData\Local\Temp\42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe"
    3⤵
    PID:2368
- - C:\Users\Admin\AppData\Local\Temp\42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\42bd607d00886ff9f55bb59b5753e830_JaffaCakes118.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops desktop.ini file(s)
    - Modifies WinLogon
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

2

Privilege Escalation

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

2

Defense Evasion

Modify Registry

3

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery