4dffae64f8c0cb89095ab7e3d061a14b2df8a6803022354a418fa4b59115ac4e

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

persistence privilege_escalation

Disable or Modify System Firewall

T1562.004

pid	Process
1956	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation	25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mousedriver.exe	25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4080-0-0x0000000000400000-0x000000000041F000-memory.dmp	upx
behavioral2/memory/4080-3-0x0000000000400000-0x000000000041F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\engel = "C:\\Users\\Admin\\AppData\\Local\\Temp\\25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe"	25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\engel = "C:\\Users\\Admin\\AppData\\Roaming\\updates\\updates.exe"	25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\Main\DHCP = "1963020"	25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Internet Explorer\Main\DNS	25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 1956	4080	25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe	91
PID 4080 wrote to memory of 1956	4080	25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe	91
PID 4080 wrote to memory of 1956	4080	25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe"
1⤵
- Modifies firewall policy service
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:4080
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="25ba687265efb98f559a2b8eea9e6617_JaffaCakes118" dir=in action=allow program="C:\Users\Admin\AppData\Local\Temp\25ba687265efb98f559a2b8eea9e6617_JaffaCakes118.exe"
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  PID:1956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

T1012

System Information Discovery