e2382b933d8f278665620c6980454447f5f5dd9cdbc6f18e019544fb8bfe0406

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe"	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\useriniti\ImagePath = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe init"	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe

UPX packed file 18 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/756-0-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/2684-2-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/2684-4-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-6-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-7-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-9-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-11-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-12-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-13-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-14-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-15-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-16-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-17-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-18-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-19-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-20-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-21-0x0000000000400000-0x0000000000561000-memory.dmp	upx
behavioral1/memory/756-22-0x0000000000400000-0x0000000000561000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\services = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe"	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\service\ARQUIVOS_EXCLUIDOS_9	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\service\dhuidjkqwld	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\Enabled = "0"	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 756 wrote to memory of 2684	756	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe	30
PID 756 wrote to memory of 2684	756	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe	30
PID 756 wrote to memory of 2684	756	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe	30
PID 756 wrote to memory of 2684	756	8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Sets service image path in registry
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:756
- C:\Users\Admin\AppData\Local\Temp\8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe" INSTALL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2684

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

2

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

2

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

4

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery