nanocore | b250dccc534f8bacc38656f7dba9bbf3b97c572839f28c49bb8f24400cd52170

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\LAN Service = "C:\\Program Files (x86)\\LAN Service\\lansv.exe"	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LAN Service\lansv.exe	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe
File opened for modification	C:\Program Files (x86)\LAN Service\lansv.exe	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
920	schtasks.exe
1508	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe
1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe
1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe
1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe
1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1912 wrote to memory of 1508	1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe	83
PID 1912 wrote to memory of 1508	1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe	83
PID 1912 wrote to memory of 1508	1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe	83
PID 1912 wrote to memory of 920	1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe	85
PID 1912 wrote to memory of 920	1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe	85
PID 1912 wrote to memory of 920	1912	JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8c47dd833dd0fb7c60becb77181763d.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Identifies Wine through registry keys
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1912
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "LAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp921E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1508
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "LAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp929C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

2